Initial commit of Command & Conquer Generals and Command & Conquer Generals Zero Hour source code.

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/Vector3i.h

@@ -0,0 +1,143 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/vector3i.h                            $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 11/24/01 5:24p                                              $*
+ *                                                                                             *
+ *                    $Revision:: 5                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef VECTOR3I_H
+#define VECTOR3I_H
+
+#include "always.h"
+
+class Vector3i
+{
+public:
+
+	int		I;
+	int		J;
+	int		K;
+
+	WWINLINE Vector3i(void);
+	WWINLINE Vector3i(int i,int j,int k);
+
+	WWINLINE bool			operator== (const Vector3i & v) const;
+   WWINLINE bool			operator!= (const Vector3i& v) const;
+	WWINLINE const	int&	operator[] (int n) const;
+	WWINLINE int&			operator[] (int n);
+};
+
+
+WWINLINE Vector3i::Vector3i(void)
+{
+}
+
+WWINLINE Vector3i::Vector3i(int i,int j,int k) 
+{ 
+	I = i; J = j; K = k; 
+}
+
+WWINLINE bool Vector3i::operator == (const Vector3i & v) const
+{ 
+	return (I == v.I && J == v.J && K == v.K);	
+}
+
+WWINLINE bool Vector3i::operator !=	(const Vector3i& v) const
+{ 
+	return !(I == v.I && J == v.J && K == v.K);	
+}
+
+WWINLINE const int& Vector3i::operator[] (int n) const				
+{ 
+	return ((int*)this)[n]; 
+}
+
+WWINLINE int& Vector3i::operator[] (int n)
+{ 
+	return ((int*)this)[n]; 
+}
+
+// ----------------------------------------------------------------------------
+
+class Vector3i16
+{
+public:
+
+	unsigned short I;
+	unsigned short J;
+	unsigned short K;
+
+	WWINLINE Vector3i16(void);
+	WWINLINE Vector3i16(unsigned short i,unsigned short j,unsigned short k);
+
+	WWINLINE bool			operator== (const Vector3i & v) const;
+   WWINLINE bool			operator!= (const Vector3i& v) const;
+	WWINLINE const	unsigned short &	operator[] (int n) const;
+	WWINLINE unsigned short & operator[] (int n);
+};
+
+
+WWINLINE Vector3i16::Vector3i16(void)
+{
+}
+
+WWINLINE Vector3i16::Vector3i16(unsigned short i,unsigned short j,unsigned short k) 
+{ 
+	I = i; J = j; K = k; 
+}
+
+WWINLINE bool Vector3i16::operator == (const Vector3i & v) const
+{ 
+	return (I == v.I && J == v.J && K == v.K);	
+}
+
+WWINLINE bool Vector3i16::operator !=	(const Vector3i& v) const
+{ 
+	return !(I == v.I && J == v.J && K == v.K);	
+}
+
+WWINLINE const unsigned short & Vector3i16::operator[] (int n) const				
+{ 
+	return ((unsigned short *)this)[n]; 
+}
+
+WWINLINE unsigned short & Vector3i16::operator[] (int n)
+{ 
+	return ((unsigned short *)this)[n]; 
+}
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/aabox.cpp

@@ -0,0 +1,79 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/aabox.cpp                             $*
+ *                                                                                             *
+ *                       Author:: Greg_h                                                       *
+ *                                                                                             *
+ *                     $Modtime:: 5/08/01 6:33p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 18                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   AABoxClass::Init_Random -- initializes this box to a random state                         *
+ *   AABoxClass::Contains -- test whether this box contains the given point                    *
+ *   AABoxClass::Contains -- Test whether this box contains the given box                      *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "aabox.h"
+#include "colmath.h"
+#include "colmathinlines.h"
+#include <float.h>
+
+
+/***********************************************************************************************
+ * AABoxClass::Init_Random -- initializes this box to a random state                           *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/17/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+void AABoxClass::Init_Random(float min_center,float max_center,float min_extent,float max_extent)
+{
+	Center.X = min_center + WWMath::Random_Float() * (max_center - min_center);
+	Center.Y = min_center + WWMath::Random_Float() * (max_center - min_center);
+	Center.Z = min_center + WWMath::Random_Float() * (max_center - min_center);
+	
+	Extent.X = min_extent + WWMath::Random_Float() * (max_extent - min_extent);
+	Extent.Y = min_extent + WWMath::Random_Float() * (max_extent - min_extent);
+	Extent.Z = min_extent + WWMath::Random_Float() * (max_extent - min_extent);
+}
+
+
+void AABoxClass::Transform(const Matrix3D & tm,const AABoxClass & in,AABoxClass * out)
+{
+	tm.Transform_Center_Extent_AABox(in.Center,in.Extent,&(out->Center),&(out->Extent));
+}
+
+void MinMaxAABoxClass::Init_Empty(void) 
+{ 
+	MinCorner.Set(FLT_MAX,FLT_MAX,FLT_MAX); 
+	MaxCorner.Set(-FLT_MAX,-FLT_MAX,-FLT_MAX); 
+}

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/aabox.h

@@ -0,0 +1,679 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/aabox.h                               $*
+ *                                                                                             *
+ *                       Author:: Greg_h                                                       *
+ *                                                                                             *
+ *                     $Modtime:: 5/08/01 6:35p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 30                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   AABoxClass::Transform -- transform an aabox                                               *
+ *   AABoxClass::Translate -- transform an aabox                                               *
+ *   AABoxClass::Init -- create a box which bounds the given points									  *
+ *   AABoxClass::Init -- initialize from a min-max form of a box                               *
+ *   AABoxClass::Init_Min_Max -- init the box from a min and max vector                        *
+ *   AABoxClass::Add_Point -- expand the box to contain the given point                        *
+ *   AABoxClass::Project_To_Axis -- compute projection onto the given axis                     *
+ *   AABoxClass::Intersects -- test for intersection with another static aabox                 *
+ *   AABoxClass::Add_Box -- expand this box to enclose the passed box                          *
+ *   AABoxClass::Add_Box -- Expand this box to enclose the passed box                          *
+ *   MinMaxAABoxClass::Init -- init the box from an array of points                            *
+ *   MinMaxAABoxClass::Init -- initializes this box from a center-extent box                   *
+ *   MinMaxAABoxClass::Add_Point -- updates this box so it encloses the given point            *
+ *   MinMaxAABoxClass::Add_Box -- update this box to enclose the given box                     *
+ *   MinMaxAABoxClass::Add_Box -- Updates this box to enclose the specified box                *
+ *   MinMaxAABoxClass::Transform -- Updates this box to enclose its transformed version        *
+ *   MinMaxAABoxClass::Translate -- translates the box                                         *
+ *   AABoxClass::Init -- Init from a line segment                                              *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef AABOX_H
+#define AABOX_H
+
+#include "always.h"
+#include "matrix3d.h"
+#include "lineseg.h"
+#include "colmath.h"
+
+class AABoxClass;
+class MinMaxAABoxClass;
+class OBBoxClass;
+class TriClass;
+class PlaneClass;
+struct CastResultStruct;
+
+
+/*
+** AABoxClass
+**
+** Axis-Aligned Boxes.  I've coded these similar to the OrientedBoxClass only 
+** without a rotation matrix.  A similar algorithm is used to test the box
+** for intersection.
+*/
+class AABoxClass
+{
+
+public:
+
+	WWINLINE AABoxClass(void) { }
+
+	WWINLINE AABoxClass(const Vector3 & center,const Vector3 & extent) : 
+		Center(center),
+		Extent(extent)
+	{ }
+
+	AABoxClass(const MinMaxAABoxClass & minmaxbox) { Init(minmaxbox); }
+
+	AABoxClass(Vector3 * points,int num) { Init(points,num); }
+
+	bool operator== (const AABoxClass &src);
+	bool operator!= (const AABoxClass &src);
+
+	WWINLINE void		Init(const Vector3& center,const Vector3 & extent) { Center = center; Extent = extent; }
+	WWINLINE void		Init(Vector3 * points,int num);
+	WWINLINE void		Init(const MinMaxAABoxClass & minmaxbox);
+	void		Init(const LineSegClass & line);
+	void		Init_Min_Max(const Vector3 & min,const Vector3 & max);
+	void		Init_Random(float min_center = -1.0f,float max_center = 1.0f,float min_extent = 0.5f,float max_extent = 1.0f);
+
+	void		Add_Point(const Vector3 & point);
+	void		Add_Box(const AABoxClass & b);
+	void		Add_Box(const MinMaxAABoxClass & b);
+	float		Project_To_Axis(const Vector3 & axis) const;
+
+	void		Transform(const Matrix3D & tm);
+	void		Translate(const Vector3 & pos);
+
+	WWINLINE float Volume(void) const { return 2.0*Extent.X * 2.0*Extent.Y * 2.0*Extent.Z; }
+	WWINLINE bool		Contains(const Vector3 & point) const;
+	WWINLINE bool		Contains(const AABoxClass & other_box) const;
+	WWINLINE bool		Contains(const MinMaxAABoxClass & other_box) const;
+
+	static void	Transform(const Matrix3D & tm,const AABoxClass & in,AABoxClass * out);
+
+	Vector3	Center;			// world space center
+	Vector3	Extent;			// size of the box in the three directions
+
+};
+
+/*
+** MinMaxAABoxClass
+** This is another form of an AABox.  It can be faster to build one of these
+** and then convert it into a center-extent AABox in some cases.  Its purpose
+** is basically that.
+*/
+class MinMaxAABoxClass
+{
+public:
+
+	WWINLINE MinMaxAABoxClass(void) { }
+
+	WWINLINE MinMaxAABoxClass(const Vector3 & min_corner,const Vector3 & max_corner) :
+		MinCorner(min_corner),
+		MaxCorner(max_corner)
+	{
+	}
+	
+	WWINLINE MinMaxAABoxClass(Vector3 * points,int num) { Init(points,num); }
+
+	WWINLINE MinMaxAABoxClass(const AABoxClass & that) { Init(that); }
+
+	WWINLINE void		Init(Vector3 * points,int num);
+	WWINLINE void		Init(const AABoxClass & box);
+	void		Init_Empty(void);
+	
+	void		Add_Point(const Vector3 & point);
+	void		Add_Box(const MinMaxAABoxClass & box);
+	void		Add_Box(const AABoxClass & box);
+	void		Add_Box(const Vector3 & min_corner,const Vector3 & max_corner);
+
+	void		Transform(const Matrix3D & tm);
+	void		Translate(const Vector3 & pos);
+
+	WWINLINE float		Volume(void) const { Vector3 size = MaxCorner - MinCorner; return size.X*size.Y*size.Z; }
+
+	Vector3	MinCorner;
+	Vector3	MaxCorner;
+};
+
+
+
+
+/***********************************************************************************************
+ * AABoxClass::Transform -- transform an aabox                                                 *
+ *                                                                                             *
+ * Note that this function expands the box to enclose its transformed form.                    *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/24/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void	AABoxClass::Transform(const Matrix3D & tm)
+{
+	Vector3 oldcenter = Center;
+	Vector3 oldextent = Extent;
+	tm.Transform_Center_Extent_AABox(oldcenter,oldextent,&Center,&Extent);
+}
+
+
+/***********************************************************************************************
+ * AABoxClass::Translate -- translate an aabox                                                 *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/24/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void	AABoxClass::Translate(const Vector3 & trans)
+{
+	Center += trans;
+}
+
+
+/***********************************************************************************************
+ * AABoxClass::operator== -- Comparison operator                                               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   6/21/00    PDS : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE  bool AABoxClass::operator== (const AABoxClass &src)
+{
+	return (Center == src.Center) && (Extent == src.Extent);
+}
+
+
+/***********************************************************************************************
+ * AABoxClass::operator!= -- Comparison operator                                               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   6/21/00    PDS : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE bool AABoxClass::operator!= (const AABoxClass &src)
+{
+	return (Center != src.Center) || (Extent != src.Extent);
+}
+
+
+/***********************************************************************************************
+ * AABoxClass::Init -- create a box which bounds the given points		                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/24/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void AABoxClass::Init(Vector3 * points,int num)
+{
+	Vector3 Min = points[0];
+	Vector3 Max = points[0];
+	
+	for (int i=1; i<num; i++) {
+		if (Min.X > points[i].X) Min.X = points[i].X;
+		if (Min.Y > points[i].Y) Min.Y = points[i].Y;
+		if (Min.Z > points[i].Z) Min.Z = points[i].Z;
+
+		if (Max.X < points[i].X) Max.X = points[i].X;
+		if (Max.Y < points[i].Y) Max.Y = points[i].Y;
+		if (Max.Z < points[i].Z) Max.Z = points[i].Z;
+	}
+	
+	Center = (Max + Min) * 0.5f;
+	Extent = (Max - Min) * 0.5f;
+}
+
+
+/***********************************************************************************************
+ * AABoxClass::Init -- initialize from a min-max form of a box                                 *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/31/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void AABoxClass::Init(const MinMaxAABoxClass & mmbox)
+{
+	Center = (mmbox.MaxCorner + mmbox.MinCorner) * 0.5f;
+	Extent = (mmbox.MaxCorner - mmbox.MinCorner) * 0.5f;
+}
+
+
+/***********************************************************************************************
+ * AABoxClass::Init -- Init from a line segment                                                *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/27/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void AABoxClass::Init(const LineSegClass & line)
+{
+	Vector3 min_corner = line.Get_P0();
+	Vector3 max_corner = line.Get_P0();
+	
+	if (min_corner.X > line.Get_P1().X) min_corner.X = line.Get_P1().X;
+	if (min_corner.Y > line.Get_P1().Y) min_corner.Y = line.Get_P1().Y;
+	if (min_corner.Z > line.Get_P1().Z) min_corner.Z = line.Get_P1().Z;
+
+	if (max_corner.X < line.Get_P1().X) max_corner.X = line.Get_P1().X;
+	if (max_corner.Y < line.Get_P1().Y) max_corner.Y = line.Get_P1().Y;
+	if (max_corner.Z < line.Get_P1().Z) max_corner.Z = line.Get_P1().Z;
+
+	Center = (max_corner + min_corner) * 0.5f;
+	Extent = (max_corner - min_corner) * 0.5f;
+}
+
+/***********************************************************************************************
+ * AABoxClass::Init_Min_Max -- init the box from a min and max vector                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/9/99     GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void AABoxClass::Init_Min_Max(const Vector3 & min,const Vector3 & max)
+{
+	Center = (max + min) * 0.5f;
+	Extent = (max - min) * 0.5f;
+}
+
+
+/***********************************************************************************************
+ * AABoxClass::Add_Point -- expand the box to contain the given point                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/24/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void AABoxClass::Add_Point(const Vector3 & point)
+{
+	Vector3 Min = Center - Extent;
+	Vector3 Max = Center + Extent;
+
+	if (Min.X > point.X) Min.X = point.X;
+	if (Min.Y > point.Y) Min.Y = point.Y;
+	if (Min.Z > point.Z) Min.Z = point.Z;
+
+	if (Max.X < point.X) Max.X = point.X;
+	if (Max.Y < point.Y) Max.Y = point.Y;
+	if (Max.Z < point.Z) Max.Z = point.Z;
+
+	Center = (Max + Min) / 2.0f;
+	Extent = (Max - Min) / 2.0f;
+}
+
+
+/***********************************************************************************************
+ * AABoxClass::Add_Box -- expand this box to enclose the passed box                            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/31/98    GTH : Created.                                                                 *
+ *   9/29/2000  gth : Ok to add boxes with zero extent                                         *
+ *=============================================================================================*/
+WWINLINE void AABoxClass::Add_Box(const AABoxClass & b)
+{
+	Vector3 newmin = Center - Extent;
+	Vector3 newmax = Center + Extent;
+	newmin.Update_Min(b.Center - b.Extent);
+	newmax.Update_Max(b.Center + b.Extent);
+
+	Center = (newmax + newmin) * 0.5f;
+	Extent = (newmax - newmin) * 0.5f;
+}
+
+
+/***********************************************************************************************
+ * AABoxClass::Add_Box -- Expand this box to enclose the passed box                            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/31/98    GTH : Created.                                                                 *
+ *   9/29/2000  gth : Ok to add boxes with zero extent                                         *
+ *=============================================================================================*/
+WWINLINE void AABoxClass::Add_Box(const MinMaxAABoxClass & b)
+{
+	Vector3 newmin = Center - Extent;
+	Vector3 newmax = Center + Extent;
+	newmin.Update_Min(b.MinCorner);
+	newmax.Update_Max(b.MaxCorner);
+
+	Center = (newmax + newmin) * 0.5f;
+	Extent = (newmax - newmin) * 0.5f;
+}
+
+/***********************************************************************************************
+ * AABoxClass::Project_To_Axis -- compute projection onto the given axis                       *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/24/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE float AABoxClass::Project_To_Axis(const Vector3 & axis) const
+{
+	float x = Extent[0] * axis[0];
+	float y = Extent[1] * axis[1];
+	float z = Extent[2] * axis[2];
+
+	// projection is the sum of the absolute values of the projections of the three extents
+	return (WWMath::Fabs(x) + WWMath::Fabs(y) + WWMath::Fabs(z));
+}
+
+/***********************************************************************************************
+ * AABoxClass::Contains -- Test whether this box contains the given box                        *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   9/2/98     GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE bool AABoxClass::Contains(const AABoxClass & other_box) const
+{
+	return CollisionMath::Overlap_Test(*this,other_box) == CollisionMath::INSIDE;
+}
+
+/***********************************************************************************************
+ * AABoxClass::Contains -- Test whether this box contains the given box                        *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   9/2/98     GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE bool AABoxClass::Contains(const MinMaxAABoxClass & other_box) const
+{
+	Vector3 bmin = Center - Extent;
+	Vector3 bmax = Center + Extent;
+
+	if (other_box.MinCorner.X < bmin.X) return false;
+	if (other_box.MinCorner.Y < bmin.Y) return false;
+	if (other_box.MinCorner.Z < bmin.Z) return false;
+
+	if (other_box.MaxCorner.X > bmax.X) return false;
+	if (other_box.MaxCorner.Y > bmax.Y) return false;
+	if (other_box.MaxCorner.Z > bmax.Z) return false;
+
+	return true;
+}
+
+/***********************************************************************************************
+ * AABoxClass::Contains -- test whether this box contains the given point                      *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   9/2/98     GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE bool AABoxClass::Contains(const Vector3 & point) const
+{
+	return CollisionMath::Overlap_Test(*this,point) == CollisionMath::INSIDE;
+}
+
+/***********************************************************************************************
+ * MinMaxAABoxClass::Init -- init the box from an array of points                              *
+ *                                                                                             *
+ * Makes a box which encloses the given array of points                                        *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/31/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void MinMaxAABoxClass::Init(Vector3 * points,int num)
+{
+	assert(num > 0);
+	assert(points != NULL);
+	MinCorner = points[0];
+	MaxCorner = points[0];
+	for (int i=0; i<num; i++) {
+		MinCorner.Update_Min(points[i]);
+		MaxCorner.Update_Max(points[i]);
+	}
+}
+
+
+/***********************************************************************************************
+ * MinMaxAABoxClass::Init -- initializes this box from a center-extent box                     *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/31/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void MinMaxAABoxClass::Init(const AABoxClass & box)
+{
+	MinCorner = box.Center - box.Extent;
+	MaxCorner = box.Center + box.Extent;
+}
+
+
+/***********************************************************************************************
+ * MinMaxAABoxClass::Add_Point -- updates this box so it encloses the given point              *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/31/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void MinMaxAABoxClass::Add_Point(const Vector3 & point)
+{
+	MinCorner.Update_Min(point);
+	MaxCorner.Update_Max(point);
+}
+
+
+/***********************************************************************************************
+ * MinMaxAABoxClass::Add_Box -- update this box to enclose the given box                       *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/31/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void MinMaxAABoxClass::Add_Box(const MinMaxAABoxClass & box)
+{
+	if (box.MinCorner == box.MaxCorner) return;
+
+	MinCorner.Update_Min(box.MinCorner);
+	MaxCorner.Update_Max(box.MaxCorner);
+}
+
+
+/***********************************************************************************************
+ * MinMaxAABoxClass::Add_Box -- update this box to enclose the given box                       *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/31/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void MinMaxAABoxClass::Add_Box(const AABoxClass & box)
+{
+	if (box.Extent == Vector3(0.0f, 0.0f, 0.0f)) return;
+
+	MinCorner.Update_Min(box.Center - box.Extent);
+	MaxCorner.Update_Max(box.Center + box.Extent);
+}
+
+/***********************************************************************************************
+ * MinMaxAABoxClass::Add_Box -- Updates this box to enclose the specified box                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/31/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void MinMaxAABoxClass::Add_Box(const Vector3 & min_corner,const Vector3 & max_corner)
+{
+	assert(max_corner.X >= min_corner.X);
+	assert(max_corner.Y >= min_corner.Y);
+	assert(max_corner.Z >= min_corner.Z);
+
+	if (min_corner == max_corner) return;
+
+	MinCorner.Update_Min(min_corner);
+	MaxCorner.Update_Max(max_corner);
+}
+
+
+/***********************************************************************************************
+ * MinMaxAABoxClass::Transform -- Updates this box to enclose its transformed version          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/31/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void MinMaxAABoxClass::Transform(const Matrix3D & tm)
+{
+	Vector3 oldmin = MinCorner;
+	Vector3 oldmax = MaxCorner;
+	tm.Transform_Min_Max_AABox(oldmin,oldmax,&MinCorner,&MaxCorner);
+}
+
+
+/***********************************************************************************************
+ * MinMaxAABoxClass::Translate -- translates the box                                           *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/31/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void MinMaxAABoxClass::Translate(const Vector3 & pos)
+{
+	MinCorner+=pos;
+	MaxCorner+=pos;
+}
+
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/aabtreecull.h

@@ -0,0 +1,344 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/aabtreecull.h                         $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 7/24/01 10:00a                                              $*
+ *                                                                                             *
+ *                    $Revision:: 15                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef AABTREECULL_H
+#define AABTREECULL_H
+
+#include "cullsys.h"
+#include "aaplane.h"
+#include "wwmath.h"
+#include "mempool.h"
+#include "simplevec.h"
+#include <math.h>
+#include <float.h>
+
+class AABTreeNodeClass;
+class ChunkLoadClass;
+class ChunkSaveClass;
+class SphereClass;
+
+/**
+** AABTreeCullSystemClass
+** Derived culling system that uses an Axis-Aligned Bounding Box Tree
+*/
+class AABTreeCullSystemClass : public CullSystemClass
+{
+public:
+
+	AABTreeCullSystemClass(void);
+	virtual ~AABTreeCullSystemClass(void);
+
+	/*
+	** Re-partition the tree.  Two methods can be used to accomplish this.  The
+	** first re-partitions the tree based on the objects contained within, the second
+	** re-partitions the tree based solely on a set of input "seed" boxes.  Each seed
+	** box will become a leaf; then the objects will be re-inserted in the new tree.
+	*/
+	void					Re_Partition(void);
+	void					Re_Partition(const AABoxClass & bounds,SimpleDynVecClass<AABoxClass> & boxes);
+	
+	/*
+	** Update_Bounding_Boxes.  This function causes all bounding boxes in the tree to update themselves.
+	** If any box is found to not bound the objects it is supposed to contain, the box is updated 
+	** Note that this is normally not necessary, the reason this function existsis due to the fact 
+	** that the renegade level editor tries to do everything possible to not discard the precalculated 
+	** visibilty data for a level.  In some cases, we want to load geometry that has been edited back 
+	** into the same AABTree without re-partitioning.
+	*/
+	void					Update_Bounding_Boxes(void);
+
+	/*
+	** Re-insert an object into the tree
+	*/
+	virtual void		Update_Culling(CullableClass * obj);
+
+	/*
+	** Statistics about the AAB-Tree
+	*/
+	int					Partition_Node_Count(void) const;
+	int					Partition_Tree_Depth(void) const;
+	int					Object_Count(void) const;
+
+	/*
+	** Collect objects which overlap the given primitive
+	*/
+	virtual void		Collect_Objects(const Vector3 & point);
+	virtual void		Collect_Objects(const AABoxClass & box);
+	virtual void		Collect_Objects(const OBBoxClass & box);
+	virtual void		Collect_Objects(const FrustumClass & frustum);
+	virtual void		Collect_Objects(const SphereClass & sphere);
+
+	/*
+	** Load and Save a description of this AAB-Tree and its contents
+	*/
+	virtual void		Load(ChunkLoadClass & cload);
+	virtual void		Save(ChunkSaveClass & csave);
+
+	/*
+	** Save an objects linkage, load the linkage and re-link the object
+	*/
+	void					Load_Object_Linkage(ChunkLoadClass & cload,CullableClass * obj);
+	void					Save_Object_Linkage(ChunkSaveClass & csave,CullableClass * obj);
+
+	/*
+	** Bounding box of the entire tree
+	*/
+	const AABoxClass & Get_Bounding_Box(void);
+	void					Get_Node_Bounds(int node_id,AABoxClass * set_bounds);	
+
+	/*
+	** Statistics
+	*/
+	struct StatsStruct
+	{
+		int				NodeCount;
+		int				NodesAccepted;
+		int				NodesTriviallyAccepted;
+		int				NodesRejected;
+	};
+
+	void					Reset_Statistics(void);
+	const StatsStruct & Get_Statistics(void);
+
+protected:
+
+	/*
+	** Internal stat tracking
+	*/
+#ifdef WWDEBUG
+	void	NODE_ACCEPTED(void)					{ Stats.NodesAccepted ++; }
+	void	NODE_TRIVIALLY_ACCEPTED(void)		{ Stats.NodesTriviallyAccepted ++; }
+	void	NODE_REJECTED(void)					{ Stats.NodesRejected ++; }
+#else
+	void	NODE_ACCEPTED(void)					{ }
+	void	NODE_TRIVIALLY_ACCEPTED(void)		{ }
+	void	NODE_REJECTED(void)					{ }
+#endif
+
+	/*
+	** Internal functions
+	*/
+	void					Add_Object_Internal(CullableClass * obj,int node_index = -1);
+	void					Remove_Object_Internal(CullableClass * obj);
+
+	void					Re_Index_Nodes(void);
+	void					Re_Index_Nodes_Recursive(AABTreeNodeClass * node,int & counter);
+
+	int					Partition_Node_Count_Recursive(AABTreeNodeClass * node) const;
+	void					Partition_Tree_Depth_Recursive(AABTreeNodeClass * node,int cur_depth,int & max_depth) const;
+	void					Add_Object_Recursive(AABTreeNodeClass * node,CullableClass * obj);
+	void					Add_Loaded_Object(AABTreeNodeClass * node,CullableClass * obj);
+
+	void					Collect_Objects_Recursive(AABTreeNodeClass * node);
+	void					Collect_Objects_Recursive(AABTreeNodeClass * node,const Vector3 & point);
+	void					Collect_Objects_Recursive(AABTreeNodeClass * node,const AABoxClass & box);
+	void					Collect_Objects_Recursive(AABTreeNodeClass * node,const OBBoxClass & box);
+	void					Collect_Objects_Recursive(AABTreeNodeClass * node,const FrustumClass & frustum);
+	void					Collect_Objects_Recursive(AABTreeNodeClass * node,const FrustumClass & frustum,int planes_passed);
+	void					Collect_Objects_Recursive(AABTreeNodeClass * node,const SphereClass & sphere);
+
+	void					Update_Bounding_Boxes_Recursive(AABTreeNodeClass * node);
+
+	void					Load_Nodes(AABTreeNodeClass * node,ChunkLoadClass & cload);
+	void					Save_Nodes(AABTreeNodeClass * node,ChunkSaveClass & csave);
+
+	virtual void		Load_Node_Contents(AABTreeNodeClass * /*node*/,ChunkLoadClass & /*cload*/) { }
+	virtual void		Save_Node_Contents(AABTreeNodeClass * /*node*/,ChunkSaveClass & /*csave*/) { }
+	
+	AABTreeNodeClass *	RootNode;			// root of the AAB-Tree
+	int						ObjectCount;		// number of objects in the system
+	
+	int						NodeCount;			// number of nodes
+	AABTreeNodeClass **	IndexedNodes;		// index access to the nodes
+
+	StatsStruct				Stats;
+
+	friend class AABTreeIterator;
+};
+
+
+/**
+** AABTreeIterator
+** This iterator allows the user to walk a tree.  It can return the index of the current
+** node and the bounds of the current node.
+*/
+class AABTreeIterator
+{
+public:
+	AABTreeIterator(AABTreeCullSystemClass * tree);
+	
+	void					Reset(void);
+	bool					Enter_Parent(void);
+	bool					Enter_Sibling(void);
+	bool					Has_Front_Child(void);
+	bool					Enter_Front_Child(void);
+	bool					Has_Back_Child(void);
+	bool					Enter_Back_Child(void);
+
+	int					Get_Current_Node_Index(void);
+	void					Get_Current_Box(AABoxClass * set_box);
+
+private:
+
+	void					validate(void);
+
+	AABTreeCullSystemClass * Tree;
+	int					CurNodeIndex;
+
+};
+
+
+/** 
+** TypedAABTreeCullSystemClass
+** This template adds type-safety to an AABTree.  It allows you to create trees
+** containing a particular type of object (the class must be derived from CullableClass though)
+*/
+template <class T> class TypedAABTreeCullSystemClass : public AABTreeCullSystemClass
+{
+public: 
+
+	virtual void		Add_Object(T * obj,int node_index=-1)	{ Add_Object_Internal(obj,node_index); }
+	virtual void		Remove_Object(T * obj)						{ Remove_Object_Internal(obj); }
+
+	T *					Get_First_Collected_Object(void)		{ return (T*)Get_First_Collected_Object_Internal(); }
+	T *					Get_Next_Collected_Object(T * obj)	{ return (T*)Get_Next_Collected_Object_Internal(obj); }
+	T *					Peek_First_Collected_Object(void)	{ return (T*)Peek_First_Collected_Object_Internal(); }
+	T *					Peek_Next_Collected_Object(T * obj)	{ return (T*)Peek_Next_Collected_Object_Internal(obj); }
+};
+
+
+
+
+/**
+** AABTreeNodeClass - the aab-tree is built out of these objects
+** CullableClass's can be linked into any of these nodes. Whenever the
+** tree is re-built, all objects will end up in the leaf nodes.  Between
+** re-builds, as objects are added, they will be placed as deep into the
+** tree as possible.
+*/
+class AABTreeNodeClass : public AutoPoolClass<AABTreeNodeClass,256>
+{
+
+public:
+
+	AABTreeNodeClass(void);
+	~AABTreeNodeClass(void);
+	
+	void						Add_Object(CullableClass * obj,bool update_bounds = true);
+	void						Remove_Object(CullableClass * obj);
+	int						Object_Count(void);
+	CullableClass *		Peek_Object(int index);
+
+	uint32					Index;				// Index of this node
+	AABoxClass				Box;					// Bounding box of the node
+	AABTreeNodeClass *	Parent;				// parent of this node
+	AABTreeNodeClass *	Front;				// front node
+	AABTreeNodeClass *	Back;					// back node
+	CullableClass *		Object;				// objects in this node
+	uint32					UserData;			// 32bit field for the user, initialized to 0
+
+	/*
+	** Construction support:
+	*/
+	struct SplitChoiceStruct 
+	{
+		SplitChoiceStruct(void) : Cost(FLT_MAX),FrontCount(0),BackCount(0),Plane(AAPlaneClass::XNORMAL,0.0f) 
+		{
+			FrontBox.Init_Empty();
+			BackBox.Init_Empty();
+		}
+
+		float					Cost;
+		int					FrontCount;
+		int					BackCount;
+		MinMaxAABoxClass	FrontBox;
+		MinMaxAABoxClass	BackBox;
+		AAPlaneClass		Plane;
+	};
+
+	void						Compute_Bounding_Box(void);
+	void						Compute_Local_Bounding_Box(void);
+	float						Compute_Volume(void);
+	void						Transfer_Objects(AABTreeNodeClass * dummy_node);
+
+	/*
+	** Partition the tree based on the objects contained.
+	*/
+	void						Partition(void);
+	void						Split_Objects(	const SplitChoiceStruct & sc,
+													AABTreeNodeClass * front,
+													AABTreeNodeClass * back);
+
+	/*
+	** Partition the tree based on a set of input "seed" boxes.
+	*/
+	void						Partition(const AABoxClass & bounds,SimpleDynVecClass<AABoxClass> & boxes);
+	void						Split_Boxes(	const SplitChoiceStruct & sc,
+													SimpleDynVecClass<AABoxClass> & boxes,
+													SimpleDynVecClass<AABoxClass> & frontboxes,
+													SimpleDynVecClass<AABoxClass> & backboxes);
+
+	/*
+	** Functions used by both partitioning algorithms
+	*/
+	void						Select_Splitting_Plane(SplitChoiceStruct * sc,SimpleDynVecClass<AABoxClass> & boxes);
+	void						Select_Splitting_Plane_Brute_Force(SplitChoiceStruct * sc,SimpleDynVecClass<AABoxClass> & boxes);
+	void						Compute_Score(SplitChoiceStruct * sc,SimpleDynVecClass<AABoxClass> & boxes);
+};
+
+
+/*
+** AABTreeLinkClass
+** This structure is used to link objects into an AAB-Tree culling system. 
+*/
+class AABTreeLinkClass : public CullLinkClass, public AutoPoolClass<AABTreeLinkClass,256>
+{
+public:
+	AABTreeLinkClass(AABTreeCullSystemClass * system) : CullLinkClass(system),Node(NULL), NextObject(NULL) { }
+
+	AABTreeNodeClass *				Node;					// partition node containing this object
+	CullableClass *					NextObject;			// next object in the node
+};
+
+
+
+
+#endif // AABTREECULL_H

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/aaplane.h

@@ -0,0 +1,83 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/aaplane.h                             $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 5/19/00 3:12p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 8                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef AAPLANE_H
+#define AAPLANE_H
+
+#include "always.h"
+#include "vector3.h"
+
+
+/*
+** This class is used to describe an "axis-aligned" plane.  I.e, the normal
+** of the plane is one of the three coordinate axes.
+*/
+class AAPlaneClass
+{
+public:
+
+	enum AxisEnum { XNORMAL = 0, YNORMAL = 1, ZNORMAL = 2 };
+
+	AAPlaneClass(void)																		{ }
+	AAPlaneClass(AxisEnum normal,float dist) : Normal(normal),Dist(dist)		{ }
+
+	void Set(AxisEnum normal,float dist);
+	void Get_Normal(Vector3 * normal) const;
+
+public:
+
+	AxisEnum			Normal;
+	float				Dist;
+
+};
+
+inline void AAPlaneClass::Set(AxisEnum normal,float dist)
+{
+	Normal = normal;
+	Dist = dist;
+}
+
+inline void AAPlaneClass::Get_Normal(Vector3 * normal) const
+{
+	normal->Set(0,0,0);
+	(*normal)[Normal] = 1.0f;
+}
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/cardinalspline.cpp

@@ -0,0 +1,356 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/cardinalspline.cpp                    $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 9/16/01 4:07p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 6                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "cardinalspline.h"
+#include "wwdebug.h"
+#include "persistfactory.h"
+#include "wwmathids.h"
+#include "wwhack.h"
+
+/*
+** Force-Link this module because the linker can't detect that we actually need it...
+*/
+DECLARE_FORCE_LINK(cardinalspline);
+
+
+/*
+** Save-Load stuff
+*/
+SimplePersistFactoryClass<CardinalSpline3DClass,WWMATH_CHUNKID_CARDINALSPLINE3D>	_CardinalSpline3DFactory;
+SimplePersistFactoryClass<CardinalSpline1DClass,WWMATH_CHUNKID_CARDINALSPLINE1D>	_CardinalSpline1DFactory;
+
+enum 
+{
+	// ID's used by CardinalSpline3D
+	CARDINAL3D_CHUNK_HERMITE3D					= 0x02070957,	
+	CARDINAL3D_CHUNK_TIGHTNESSKEYS,			
+
+	// ID's used by CardinalSpline1D
+	CARDINAL1D_CHUNK_HERMITE1D					= 0x02070959,	
+	CARDINAL1D_CHUNK_TIGHTNESSKEYS
+};
+
+
+/*
+** CardinalSpline3DClass Implementation
+*/
+int CardinalSpline3DClass::Add_Key(const Vector3 & point,float t)
+{
+	int index = HermiteSpline3DClass::Add_Key(point,t);
+	float tightness = 0.5f;
+	Tightness.Insert(index,tightness);
+	return index;
+}
+
+void CardinalSpline3DClass::Remove_Key(int i)
+{
+	Tightness.Delete(i);
+	HermiteSpline3DClass::Remove_Key(i);
+}
+
+void CardinalSpline3DClass::Clear_Keys(void)
+{
+	Tightness.Clear();
+	HermiteSpline3DClass::Clear_Keys();
+}
+
+void CardinalSpline3DClass::Set_Tightness(int i,float tightness)
+{
+	WWASSERT(i >= 0);
+	WWASSERT(i < Tightness.Count());
+	Tightness[i] = tightness;
+	TangentsDirty = true;
+}
+
+float CardinalSpline3DClass::Get_Tightness(int i)
+{
+	return Tightness[i];
+}
+
+void CardinalSpline3DClass::Update_Tangents(void)
+{
+	if (Keys.Count() < 2) {
+		for (int i=0; i<Keys.Count(); i++) {
+			Tangents[0].InTangent.Set(0,0,0);
+			Tangents[0].OutTangent.Set(0,0,0);
+		}
+		return;
+	}
+
+	// First and Last Key: 
+	// Only need to compute the OutTangent for key[0] and the InTangent for key[end]
+	int end = Keys.Count() - 1;
+	Tangents[0].InTangent.Set(0,0,0);
+	Tangents[end].OutTangent.Set(0,0,0);
+
+	if (IsLooping) {
+
+		// This really only works if the start and end points have the same position...
+		Tangents[0].OutTangent.X = (1.0f - Tightness[0])*(Keys[1].Point.X - Keys[end-1].Point.X); 			
+		Tangents[0].OutTangent.Y = (1.0f - Tightness[0])*(Keys[1].Point.Y - Keys[end-1].Point.Y); 			
+		Tangents[0].OutTangent.Z = (1.0f - Tightness[0])*(Keys[1].Point.Z - Keys[end-1].Point.Z); 			
+		Tangents[end].InTangent = Tangents[0].OutTangent;
+
+	} else {
+		
+		Tangents[0].OutTangent.X = (1.0f - Tightness[0])*(Keys[1].Point.X - Keys[0].Point.X); 			
+		Tangents[0].OutTangent.Y = (1.0f - Tightness[0])*(Keys[1].Point.Y - Keys[0].Point.Y); 			
+		Tangents[0].OutTangent.Z = (1.0f - Tightness[0])*(Keys[1].Point.Z - Keys[0].Point.Z); 			
+
+		Tangents[end].InTangent.X = (1.0f - Tightness[0])*(Keys[end].Point.X - Keys[end-1].Point.X); 			
+		Tangents[end].InTangent.Y = (1.0f - Tightness[0])*(Keys[end].Point.Y - Keys[end-1].Point.Y); 			
+		Tangents[end].InTangent.Z = (1.0f - Tightness[0])*(Keys[end].Point.Z - Keys[end-1].Point.Z); 			
+
+	}
+
+	float total_time = (Keys[1].Time - Keys[0].Time) + (Keys[end].Time - Keys[end-1].Time);
+	float in_factor = 2.0f * (Keys[end].Time - Keys[end-1].Time) / total_time;
+	float out_factor = 2.0f * (Keys[1].Time - Keys[0].Time) / total_time;
+	Tangents[end].InTangent *= in_factor;
+	Tangents[0].OutTangent *= out_factor;
+
+
+	// inner knots
+	for (int i=1; i<Keys.Count()-1; i++) {
+		Tangents[i].InTangent.X = (1.0f - Tightness[i])*(Keys[i+1].Point.X - Keys[i-1].Point.X);
+		Tangents[i].InTangent.Y = (1.0f - Tightness[i])*(Keys[i+1].Point.Y - Keys[i-1].Point.Y);
+		Tangents[i].InTangent.Z = (1.0f - Tightness[i])*(Keys[i+1].Point.Z - Keys[i-1].Point.Z);
+		Tangents[i].OutTangent = Tangents[i].InTangent;
+
+		float in_factor = 2.0f * (Keys[i].Time - Keys[i-1].Time) / (Keys[i+1].Time - Keys[i-1].Time);
+		float out_factor = 2.0f * (Keys[i+1].Time - Keys[i].Time) / (Keys[i+1].Time - Keys[i-1].Time);
+		
+		Tangents[i].InTangent *= in_factor;			// compensating for the un-even keys
+		Tangents[i].OutTangent *= out_factor;
+	}
+	TangentsDirty = false;
+}
+
+const PersistFactoryClass & CardinalSpline3DClass::Get_Factory(void) const
+{
+	return _CardinalSpline3DFactory;
+}
+
+bool CardinalSpline3DClass::Save(ChunkSaveClass &csave)
+{
+	csave.Begin_Chunk(CARDINAL3D_CHUNK_HERMITE3D);
+	HermiteSpline3DClass::Save(csave);
+	csave.End_Chunk();
+	
+	csave.Begin_Chunk(CARDINAL3D_CHUNK_TIGHTNESSKEYS);
+	for (int i=0; i<Tightness.Count(); i++) {
+		float tightness = Tightness[i];
+		csave.Write(&(tightness),sizeof(tightness));
+	}
+	csave.End_Chunk();
+	return true;
+}
+
+bool CardinalSpline3DClass::Load(ChunkLoadClass &cload)
+{
+	int i;
+	float tightness;
+
+	// reset the array of tightness keys
+	Tightness.Delete_All();
+
+	// read in the chunks
+	while (cload.Open_Chunk()) {
+		
+		switch(cload.Cur_Chunk_ID()) 
+		{
+			case CARDINAL3D_CHUNK_HERMITE3D:
+				HermiteSpline3DClass::Load(cload);
+				break;
+
+			case CARDINAL3D_CHUNK_TIGHTNESSKEYS:
+				for (i=0; i<Keys.Count(); i++) {
+					cload.Read(&(tightness),sizeof(tightness));
+					Tightness.Add(tightness);
+				}
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	return true;
+}
+
+
+/*
+** CardinalSpline1DClass Implementation
+*/
+int CardinalSpline1DClass::Add_Key(float point,float t)
+{
+	int index = HermiteSpline1DClass::Add_Key(point,t);
+	float tightness = 0.5f;
+	Tightness.Insert(index,tightness);
+	return index;
+}
+
+void CardinalSpline1DClass::Remove_Key(int i)
+{
+	Tightness.Delete(i);
+	HermiteSpline1DClass::Remove_Key(i);
+}
+
+void CardinalSpline1DClass::Clear_Keys(void)
+{
+	Tightness.Clear();
+	HermiteSpline1DClass::Clear_Keys();
+}
+
+void CardinalSpline1DClass::Set_Tightness(int i,float tightness)
+{
+	WWASSERT(i >= 0);
+	WWASSERT(i < Tightness.Count());
+	Tightness[i] = tightness;
+	TangentsDirty = true;
+}
+
+float CardinalSpline1DClass::Get_Tightness(int i)
+{
+	return Tightness[i];
+}
+
+void CardinalSpline1DClass::Update_Tangents(void)
+{
+	if (Keys.Count() < 2) {
+		for (int i=0; i<Keys.Count(); i++) {
+			Tangents[0].InTangent = 0;
+			Tangents[0].OutTangent = 0;
+		}
+	}
+
+	// First and Last Key: 
+	// Only need to compute the OutTangent for key[0] and the InTangent for key[end]
+	int end = Keys.Count() - 1;
+	Tangents[0].InTangent = 0;
+	Tangents[end].OutTangent = 0;
+
+	if (IsLooping) {
+
+		// This really only works if the start and end points have the same position...
+		Tangents[0].OutTangent = (1.0f - Tightness[0])*(Keys[1].Point - Keys[end-1].Point); 			
+		Tangents[end].InTangent = Tangents[0].OutTangent;
+
+	} else {
+		
+		Tangents[0].OutTangent = (1.0f - Tightness[0])*(Keys[1].Point - Keys[0].Point); 			
+		Tangents[end].InTangent = (1.0f - Tightness[0])*(Keys[end].Point - Keys[end-1].Point); 			
+	}
+
+	float total_time = (Keys[1].Time - Keys[0].Time) + (Keys[end].Time - Keys[end-1].Time);
+	float in_factor = 2.0f * (Keys[end].Time - Keys[end-1].Time) / total_time;
+	float out_factor = 2.0f * (Keys[1].Time - Keys[0].Time) / total_time;
+	Tangents[end].InTangent *= in_factor;
+	Tangents[0].OutTangent *= out_factor;
+
+
+	// inner knots
+	for (int i=1; i<Keys.Count()-1; i++) {
+		Tangents[i].InTangent = (1.0f - Tightness[i])*(Keys[i+1].Point - Keys[i-1].Point);
+		Tangents[i].OutTangent = Tangents[i].InTangent;
+
+		float in_factor = 2.0f * (Keys[i].Time - Keys[i-1].Time) / (Keys[i+1].Time - Keys[i-1].Time);
+		float out_factor = 2.0f * (Keys[i+1].Time - Keys[i].Time) / (Keys[i+1].Time - Keys[i-1].Time);
+		
+		Tangents[i].InTangent *= in_factor;			// compensating for the un-even keys
+		Tangents[i].OutTangent *= out_factor;
+	}
+	TangentsDirty = false;
+}
+
+const PersistFactoryClass & CardinalSpline1DClass::Get_Factory(void) const
+{
+	return _CardinalSpline1DFactory;
+}
+
+bool CardinalSpline1DClass::Save(ChunkSaveClass &csave)
+{
+	csave.Begin_Chunk(CARDINAL1D_CHUNK_HERMITE1D);
+	HermiteSpline1DClass::Save(csave);
+	csave.End_Chunk();
+	
+	csave.Begin_Chunk(CARDINAL1D_CHUNK_TIGHTNESSKEYS);
+	for (int i=0; i<Tightness.Count(); i++) {
+		float tightness = Tightness[i];
+		csave.Write(&(tightness),sizeof(tightness));
+	}
+	csave.End_Chunk();
+	return true;
+}
+
+bool CardinalSpline1DClass::Load(ChunkLoadClass &cload)
+{
+	int i;
+	float tightness;
+
+	// reset the array of tangents
+	Tightness.Delete_All();
+
+	// read in the chunks
+	while (cload.Open_Chunk()) {
+		
+		switch(cload.Cur_Chunk_ID()) 
+		{
+			case CARDINAL1D_CHUNK_HERMITE1D:
+				HermiteSpline1DClass::Load(cload);
+				break;
+
+			case CARDINAL1D_CHUNK_TIGHTNESSKEYS:
+				for (i=0; i<Keys.Count(); i++) {
+					cload.Read(&(tightness),sizeof(tightness));
+					Tightness.Add(tightness);
+				}
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	return true;
+}
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/cardinalspline.h

@@ -0,0 +1,104 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /VSS_Sync/wwmath/cardinalspline.h                           $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 6/13/01 2:18p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 4                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef CARDINALSPLINE_H
+#define CARDINALSPLINE_H
+
+#include "hermitespline.h"
+
+/**
+** CardinalSpline3DClass
+** 3-Dimensional cardinal splines
+*/
+class CardinalSpline3DClass : public HermiteSpline3DClass
+{
+public:
+
+	virtual int			Add_Key(const Vector3 & point,float t);
+	virtual void		Remove_Key(int i);
+	virtual void		Clear_Keys(void);
+
+	virtual void		Set_Tightness(int i,float tightness);
+	virtual float		Get_Tightness(int i);
+
+	virtual void		Update_Tangents(void);
+
+	// save-load support
+	virtual const PersistFactoryClass &	Get_Factory(void) const;
+	virtual bool								Save(ChunkSaveClass &csave);
+	virtual bool								Load(ChunkLoadClass &cload);
+
+protected:	
+	
+	DynamicVectorClass<float>	Tightness;
+};
+
+
+/**
+** CardinalSpline1DClass
+** 1-Dimensional cardinal splines
+*/
+class CardinalSpline1DClass : public HermiteSpline1DClass
+{
+public:
+
+	virtual int			Add_Key(float point,float t);
+	virtual void		Remove_Key(int i);
+	virtual void		Clear_Keys(void);
+
+	virtual void		Set_Tightness(int i,float tightness);
+	virtual float		Get_Tightness(int i);
+
+	virtual void		Update_Tangents(void);
+
+	// save-load support
+	virtual const PersistFactoryClass &	Get_Factory(void) const;
+	virtual bool								Save(ChunkSaveClass &csave);
+	virtual bool								Load(ChunkLoadClass &cload);
+
+protected:	
+	
+	DynamicVectorClass<float>	Tightness;
+};
+
+
+#endif
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/castres.h

@@ -0,0 +1,75 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/castres.h                             $*
+ *                                                                                             *
+ *                       Author:: Greg_h                                                       *
+ *                                                                                             *
+ *                     $Modtime:: 11/14/00 2:59p                                              $*
+ *                                                                                             *
+ *                    $Revision:: 10                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef CASTRES_H
+#define CASTRES_H
+
+#include "always.h"
+#include "vector3.h"
+#include "bittype.h"
+
+
+/**
+** CastResultStruct
+** Result of a volume or ray cast operation will be stored in the following structure
+** NOTE: If you can avoid it, do not enable ComputeContactPoint.  When casting rays, it is more 
+** efficient to use the resulting Fraction to compute the contact point outside of the 
+** collision detection code.  In the case of AABox sweeping for character collision detection,
+** you don't usually need the actual point of contact, etc etc.  
+**
+** The default state of ComputeContactPoint is *false*
+*/
+struct CastResultStruct
+{
+	CastResultStruct(void)	{ Reset(); }
+	void		Reset(void)		{ StartBad = false; Fraction = 1.0f; Normal.Set(0,0,0); SurfaceType = 0; ComputeContactPoint = false; ContactPoint.Set(0,0,0); }
+	
+	bool		StartBad;		// was the inital configuration interpenetrating something?
+	float		Fraction;		// fraction of the move up until collision
+	Vector3	Normal;			// surface normal at the collision point
+	uint32	SurfaceType;	// surface type of polygon at collision point (see W3D_SURFACE_TYPES in w3d_file.h)
+
+	bool		ComputeContactPoint;		// This signals the collision code to compute the point of collision
+	Vector3	ContactPoint;				// This will be set to the point of collision if ComputeContactPoint is true
+
+};
+
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/catmullromspline.cpp

@@ -0,0 +1,354 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/catmullromspline.cpp                  $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 3/08/00 8:50p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 6                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   CatmullRomSpline3DClass::Update_Tangents -- computes the tangents at each key             *
+ *   CatmullRomSpline3DClass::Get_Factory -- returns the factory for CatmullRomSpline3D        *
+ *   CatmullRomSpline3DClass::Save -- save this curve                                          *
+ *   CatmullRomSpline3DClass::Load -- load this curve                                          *
+ *   CatmullRomSpline1DClass::Update_Tangents -- Computes the tangents at each key             *
+ *   CatmullRomSpline1DClass::Get_Factory -- returns the factory for CatmullRomSpline1D        *
+ *   CatmullRomSpline1DClass::Save -- Save this curve                                          *
+ *   CatmullRomSpline1DClass::Load -- Load this curve                                          *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "catmullromspline.h"
+#include "persistfactory.h"
+#include "wwmathids.h"
+#include "wwhack.h" 
+
+/*
+** Force-Link this module because the linker can't detect that we actually need it...
+*/
+DECLARE_FORCE_LINK(catmullromspline);
+ 
+/*
+** Save-Load stuff
+*/
+SimplePersistFactoryClass<CatmullRomSpline3DClass,WWMATH_CHUNKID_CATMULLROMSPLINE3D>	_CatmullRomSpline3DFactory;
+SimplePersistFactoryClass<CatmullRomSpline1DClass,WWMATH_CHUNKID_CATMULLROMSPLINE1D>	_CatmullRomSpline1DFactory;
+
+enum 
+{
+	// ID's used by CatmullRomSpline3D
+	CATMULLROM3D_CHUNK_HERMITE3D					= 0x00020727,	
+
+	// ID's used by CatmullRomSpline1D
+	CATMULLROM1D_CHUNK_HERMITE1D					= 0x00020729,	
+};
+
+
+/*
+** Catmull-Rom 3D spline implementation
+*/
+
+/***********************************************************************************************
+ * CatmullRomSpline3DClass::Update_Tangents -- computes the tangents at each key               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ * I'm not sure about the tangents for the endpoints of the curve.                             *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/7/2000   gth : Created.                                                                 *
+ *=============================================================================================*/
+void CatmullRomSpline3DClass::Update_Tangents(void)
+{
+	if (Keys.Count() < 2) {
+		for (int i=0; i<Keys.Count(); i++) {
+			Tangents[0].InTangent.Set(0,0,0);
+			Tangents[0].OutTangent.Set(0,0,0);
+		}
+	}
+
+	// first and last knot
+	int end = Keys.Count() - 1;
+	Tangents[0].InTangent.Set(0,0,0);
+	Tangents[end].OutTangent.Set(0,0,0);
+
+	if (IsLooping) {
+
+		// This really only works if the start and end points have the same position...
+		Tangents[0].OutTangent.X = 0.5f*(Keys[1].Point.X - Keys[end-1].Point.X); 			
+		Tangents[0].OutTangent.Y = 0.5f*(Keys[1].Point.Y - Keys[end-1].Point.Y); 			
+		Tangents[0].OutTangent.Z = 0.5f*(Keys[1].Point.Z - Keys[end-1].Point.Z); 			
+		Tangents[end].InTangent = Tangents[0].OutTangent;
+	
+	} else {
+		
+		// TODO: second derivative = 0... what is formula?  I'm making this up...
+		Tangents[0].OutTangent.X = 0.25f*(Keys[1].Point.X - Keys[0].Point.X); 			
+		Tangents[0].OutTangent.Y = 0.25f*(Keys[1].Point.Y - Keys[0].Point.Y); 			
+		Tangents[0].OutTangent.Z = 0.25f*(Keys[1].Point.Z - Keys[0].Point.Z); 			
+
+		Tangents[end].InTangent.X = 0.25f*(Keys[end].Point.X - Keys[end-1].Point.X); 			
+		Tangents[end].InTangent.Y = 0.25f*(Keys[end].Point.Y - Keys[end-1].Point.Y); 			
+		Tangents[end].InTangent.Z = 0.25f*(Keys[end].Point.Z - Keys[end-1].Point.Z); 			
+	
+	}
+
+	float total_time = (Keys[1].Time - Keys[0].Time) + (Keys[end].Time - Keys[end-1].Time);
+	float in_factor = 2.0f * (Keys[end].Time - Keys[end-1].Time) / total_time;
+	float out_factor = 2.0f * (Keys[1].Time - Keys[0].Time) / total_time;
+	Tangents[end].InTangent *= in_factor;
+	Tangents[0].OutTangent *= out_factor;
+
+	// inner knots
+	for (int i=1; i<Keys.Count()-1; i++) {
+		Tangents[i].InTangent.X = 0.5f*(Keys[i+1].Point.X - Keys[i-1].Point.X);
+		Tangents[i].InTangent.Y = 0.5f*(Keys[i+1].Point.Y - Keys[i-1].Point.Y);
+		Tangents[i].InTangent.Z = 0.5f*(Keys[i+1].Point.Z - Keys[i-1].Point.Z);
+		Tangents[i].OutTangent = Tangents[i].InTangent;
+
+		float in_factor = 2.0f * (Keys[i].Time - Keys[i-1].Time) / (Keys[i+1].Time - Keys[i-1].Time);
+		float out_factor = 2.0f * (Keys[i+1].Time - Keys[i].Time) / (Keys[i+1].Time - Keys[i-1].Time);
+		Tangents[i].InTangent *= in_factor;			// compensating for the un-even keys
+		Tangents[i].OutTangent *= out_factor;
+	}
+	TangentsDirty = false;
+}
+
+
+/***********************************************************************************************
+ * CatmullRomSpline3DClass::Get_Factory -- returns the factory for CatmullRomSpline3D          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/7/2000   gth : Created.                                                                 *
+ *=============================================================================================*/
+const PersistFactoryClass & CatmullRomSpline3DClass::Get_Factory(void) const
+{
+	return _CatmullRomSpline3DFactory;
+}
+
+
+/***********************************************************************************************
+ * CatmullRomSpline3DClass::Save -- save this curve                                            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/7/2000   gth : Created.                                                                 *
+ *=============================================================================================*/
+bool CatmullRomSpline3DClass::Save(ChunkSaveClass &csave)
+{
+	csave.Begin_Chunk(CATMULLROM3D_CHUNK_HERMITE3D);
+	HermiteSpline3DClass::Save(csave);
+	csave.End_Chunk();
+	return true;
+}
+
+
+/***********************************************************************************************
+ * CatmullRomSpline3DClass::Load -- load this curve                                            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/7/2000   gth : Created.                                                                 *
+ *=============================================================================================*/
+bool CatmullRomSpline3DClass::Load(ChunkLoadClass &cload)
+{
+	while (cload.Open_Chunk()) {
+		
+		switch(cload.Cur_Chunk_ID()) 
+		{
+			case CATMULLROM3D_CHUNK_HERMITE3D:
+				HermiteSpline3DClass::Load(cload);
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	return true;
+}
+
+
+/*
+** The 1D Catmull-Rom implementation.
+*/
+
+
+/***********************************************************************************************
+ * CatmullRomSpline1DClass::Update_Tangents -- Computes the tangents at each key               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/7/2000   gth : Created.                                                                 *
+ *=============================================================================================*/
+void CatmullRomSpline1DClass::Update_Tangents(void)
+{
+	if (Keys.Count() < 2) {
+		for (int i=0; i<Keys.Count(); i++) {
+			Tangents[i].InTangent = 0.0f;
+			Tangents[i].OutTangent = 0.0f;
+		}
+		return;
+	}
+
+	// first and last knot
+	int end = Keys.Count() - 1;
+	Tangents[0].InTangent = 0.0f;
+	Tangents[end].OutTangent = 0.0f;
+
+	if (IsLooping) {
+
+		// This really only works if the start and end points have the same position...
+		Tangents[0].OutTangent = 0.5f*(Keys[1].Point - Keys[end-1].Point);
+		Tangents[end].InTangent = Tangents[0].OutTangent;
+	
+	} else {
+		
+		// TODO: second derivative = 0... what is formula?  I'm making this up...
+		Tangents[0].OutTangent = 0.25f*(Keys[1].Point - Keys[0].Point);
+
+		Tangents[end].InTangent = 0.25f*(Keys[end].Point - Keys[end-1].Point);
+	
+	}
+
+	float total_time = (Keys[1].Time - Keys[0].Time) + (Keys[end].Time - Keys[end-1].Time);
+	float in_factor = 2.0f * (Keys[end].Time - Keys[end-1].Time) / total_time;
+	float out_factor = 2.0f * (Keys[1].Time - Keys[0].Time) / total_time;
+	Tangents[end].InTangent *= in_factor;
+	Tangents[0].OutTangent *= out_factor;
+
+	// inner knots
+	for (int i=1; i<Keys.Count()-1; i++) {
+		Tangents[i].InTangent = 0.5f*(Keys[i+1].Point - Keys[i-1].Point);
+		Tangents[i].OutTangent = Tangents[i].InTangent;
+
+		float in_factor = 2.0f * (Keys[i].Time - Keys[i-1].Time) / (Keys[i+1].Time - Keys[i-1].Time);
+		float out_factor = 2.0f * (Keys[i+1].Time - Keys[i].Time) / (Keys[i+1].Time - Keys[i-1].Time);
+		Tangents[i].InTangent *= in_factor;			// compensating for the un-even keys
+		Tangents[i].OutTangent *= out_factor;
+	}
+	TangentsDirty = false;
+}
+
+
+/***********************************************************************************************
+ * CatmullRomSpline1DClass::Get_Factory -- returns the factory for CatmullRomSpline1D          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/7/2000   gth : Created.                                                                 *
+ *=============================================================================================*/
+const PersistFactoryClass & CatmullRomSpline1DClass::Get_Factory(void) const
+{
+	return _CatmullRomSpline1DFactory;
+}
+
+
+/***********************************************************************************************
+ * CatmullRomSpline1DClass::Save -- Save this curve                                            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/7/2000   gth : Created.                                                                 *
+ *=============================================================================================*/
+bool CatmullRomSpline1DClass::Save(ChunkSaveClass &csave)
+{
+	csave.Begin_Chunk(CATMULLROM1D_CHUNK_HERMITE1D);
+	HermiteSpline1DClass::Save(csave);
+	csave.End_Chunk();
+	return true;
+}
+
+
+/***********************************************************************************************
+ * CatmullRomSpline1DClass::Load -- Load this curve                                            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/7/2000   gth : Created.                                                                 *
+ *=============================================================================================*/
+bool CatmullRomSpline1DClass::Load(ChunkLoadClass &cload)
+{
+	while (cload.Open_Chunk()) {
+		
+		switch(cload.Cur_Chunk_ID()) 
+		{
+			case CATMULLROM1D_CHUNK_HERMITE1D:
+				HermiteSpline1DClass::Load(cload);
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	return true;
+}

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/catmullromspline.h

@@ -0,0 +1,78 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/catmullromspline.h                    $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 3/07/00 9:51a                                               $*
+ *                                                                                             *
+ *                    $Revision:: 6                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef CATMULLROMSPLINE_H
+#define CATMULLROMSPLINE_H
+
+#include "hermitespline.h"
+
+/**
+** CatmullRomSpline3DClass
+** This is is an implementation of 3D catmull-rom splines
+*/
+class CatmullRomSpline3DClass : public HermiteSpline3DClass
+{
+public:
+	void					Update_Tangents(void);
+
+	// save-load support
+	virtual const PersistFactoryClass &	Get_Factory(void) const;
+	virtual bool								Save(ChunkSaveClass &csave);
+	virtual bool								Load(ChunkLoadClass &cload);
+};
+
+
+/**
+** CatmullRomSpline1DClass
+** This is is an implementation of 1D catmull-rom splines
+*/
+class CatmullRomSpline1DClass : public HermiteSpline1DClass
+{
+public:
+	void					Update_Tangents(void); 
+
+	// save-load support
+	virtual const PersistFactoryClass &	Get_Factory(void) const;
+	virtual bool								Save(ChunkSaveClass &csave);
+	virtual bool								Load(ChunkLoadClass &cload);
+};
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmath.cpp

@@ -0,0 +1,68 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmath.cpp                           $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 3/16/00 2:19p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 4                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "colmath.h"
+
+const float CollisionMath::COINCIDENCE_EPSILON = 0.000001f;
+CollisionMath::ColmathStatsStruct CollisionMath::Stats;
+
+CollisionMath::ColmathStatsStruct::ColmathStatsStruct(void)
+{
+	Reset();
+}
+
+void CollisionMath::ColmathStatsStruct::Reset(void)
+{
+	TotalCollisionCount = 0;
+	TotalCollisionHitCount = 0;
+	
+	CollisionRayTriCount = 0;
+	CollisionRayTriHitCount = 0;
+
+	CollisionAABoxTriCount = 0;
+	CollisionAABoxTriHitCount = 0;
+	CollisionAABoxAABoxCount = 0;
+	CollisionAABoxAABoxHitCount = 0;
+
+	CollisionOBBoxTriCount = 0;
+	CollisionOBBoxTriHitCount = 0;
+	CollisionOBBoxAABoxCount = 0;
+	CollisionOBBoxAABoxHitCount = 0;
+	CollisionOBBoxOBBoxCount = 0;
+	CollisionOBBoxOBBoxHitCount = 0;
+}
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmath.h

@@ -0,0 +1,312 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmath.h                             $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 5/04/01 8:25p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 19                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef COLMATH_H
+#define COLMATH_H
+
+#ifndef ALWAYS_H
+#include "always.h"
+#endif
+
+#ifndef VECTOR3_H
+#include "vector3.h"
+#endif
+
+#ifndef CASTRES_H
+#include "castres.h"
+#endif
+
+class AAPlaneClass;
+class PlaneClass;
+class LineSegClass;
+class TriClass;
+class SphereClass;
+class AABoxClass;
+class OBBoxClass;
+class FrustumClass;
+
+const float COLLISION_EPSILON = 0.001f;
+
+/*
+** #define COLMATH_STAT_TRACKING to enable stat tracking for the collision math functions
+*/
+#ifdef WWDEBUG
+#define COLMATH_STAT_TRACKING
+#endif
+
+
+/**
+** CollisionMath
+** This is a collection of the low-level math functions for collision detection.
+*/
+class CollisionMath
+{
+public:
+
+	////////////////////////////////////////////////////////////////////////////////////////
+	// Intersect Functions.
+	// These functions simply return a bool indicating whether the two operands intersect.
+	////////////////////////////////////////////////////////////////////////////////////////
+	static bool		Intersection_Test(const AABoxClass & box,const TriClass & tri);	
+	static bool		Intersection_Test(const AABoxClass & box,const AABoxClass & box2);
+	static bool		Intersection_Test(const AABoxClass & box,const OBBoxClass & box2);	
+	static bool		Intersection_Test(const OBBoxClass & box,const TriClass & tri);
+	static bool		Intersection_Test(const OBBoxClass & box,const AABoxClass & box2);
+	static bool		Intersection_Test(const OBBoxClass & box,const OBBoxClass & box2);
+	static bool		Intersection_Test(const SphereClass & sphere,const AABoxClass & box);
+	static bool		Intersection_Test(const SphereClass & sphere,const OBBoxClass & box);
+
+	////////////////////////////////////////////////////////////////////////////////////////
+	// Overlap Functions.
+	// Classify the second operand with respect to the first operand.
+	// For example Overlap_Test(plane,point) tests whether 'point' is in front of or 
+	// behind 'plane'.
+	// OverlapType: This enumeration is the result of an overlap test.
+	// It indicates whether the the object is in the positive (front/outside) space
+	// of the volume, the negative (back/inside) space of the volume, or both (overlapping)
+	////////////////////////////////////////////////////////////////////////////////////////
+	enum OverlapType
+	{
+		POS				= 0x01,
+		NEG				= 0x02,
+		ON					= 0x04,
+		BOTH				= 0x08,
+		OUTSIDE			= POS,
+		INSIDE			= NEG,
+		OVERLAPPED		= BOTH,
+		FRONT				= POS,
+		BACK				= NEG
+	};
+
+	// AAPlane functions.  Where is operand B with respect to this AAPlane
+	static OverlapType	Overlap_Test(const AAPlaneClass & plane,const Vector3 & point);
+	static OverlapType	Overlap_Test(const AAPlaneClass & plane,const LineSegClass & line);
+	static OverlapType	Overlap_Test(const AAPlaneClass & plane,const TriClass & tri);
+	static OverlapType	Overlap_Test(const AAPlaneClass & plane,const SphereClass & sphere);
+	static OverlapType	Overlap_Test(const AAPlaneClass & plane,const AABoxClass & box);
+	static OverlapType	Overlap_Test(const AAPlaneClass & plane,const OBBoxClass & box);
+
+	// Plane functions.  Where is operand B with respect to the plane
+	static OverlapType	Overlap_Test(const PlaneClass & plane,const Vector3 & point);
+	static OverlapType	Overlap_Test(const PlaneClass & plane,const LineSegClass & line);
+	static OverlapType	Overlap_Test(const PlaneClass & plane,const TriClass & tri);
+	static OverlapType	Overlap_Test(const PlaneClass & plane,const SphereClass & sphere);
+	static OverlapType	Overlap_Test(const PlaneClass & plane,const Vector3 & center,const Vector3 & extent);
+	inline static OverlapType	Overlap_Test(const PlaneClass & plane,const AABoxClass & box);
+	static OverlapType	Overlap_Test(const PlaneClass & plane,const OBBoxClass & box);
+
+	// Sphere functions.  Where is operand B with respect to the sphere
+	static OverlapType	Overlap_Test(const SphereClass & sphere,const Vector3 & point);
+	static OverlapType	Overlap_Test(const SphereClass & sphere,const LineSegClass & line);
+	static OverlapType	Overlap_Test(const SphereClass & sphere,const TriClass & tri);
+	static OverlapType	Overlap_Test(const SphereClass & sphere,const SphereClass & sphere2);
+	static OverlapType	Overlap_Test(const SphereClass & sphere,const AABoxClass & aabox);
+	static OverlapType	Overlap_Test(const SphereClass & sphere,const OBBoxClass & obbox);
+
+	// AABox functions. Where is operand B with respect to the AABox
+	static OverlapType	Overlap_Test(const AABoxClass & box,const Vector3 & point);
+	static OverlapType	Overlap_Test(const AABoxClass & box,const LineSegClass & line);
+	static OverlapType	Overlap_Test(const AABoxClass & box,const TriClass & tri);
+	static OverlapType	Overlap_Test(const AABoxClass & box,const AABoxClass & box2);
+	static OverlapType	Overlap_Test(const AABoxClass & box,const OBBoxClass & obbox);
+	static OverlapType	Overlap_Test(const AABoxClass & box,const SphereClass & sphere);
+
+	// OBBox functions, where is operand B with respect to the OBBox
+	static OverlapType	Overlap_Test(const OBBoxClass & box,const Vector3 & point);
+	static OverlapType	Overlap_Test(const OBBoxClass & box,const LineSegClass & line);
+	static OverlapType	Overlap_Test(const OBBoxClass & box,const TriClass & tri);
+	static OverlapType	Overlap_Test(const OBBoxClass & box,const AABoxClass & box2);
+	static OverlapType	Overlap_Test(const OBBoxClass & box,const OBBoxClass & box2);
+
+	// Frustum functions
+	static OverlapType	Overlap_Test(const FrustumClass & frustum,const Vector3 & point);
+	static OverlapType	Overlap_Test(const FrustumClass & frustum,const TriClass & tri);
+	static OverlapType	Overlap_Test(const FrustumClass & frustum,const SphereClass & sphere);
+	static OverlapType	Overlap_Test(const FrustumClass & frustum,const AABoxClass & box);
+	static OverlapType	Overlap_Test(const FrustumClass & frustum,const OBBoxClass & box);
+
+	// Frustum functions for hierachical culling systems.  
+	// At your root node, just pass in planes_passed = 0, then the variable will be modified to 
+	// indicate which planes that volume was inside.  You can then pass that value in for the 
+	// test of all child nodes and optimize away some of the tests.  See AABTreeCullSystemClass 
+	// for an example usage.
+	static OverlapType	Overlap_Test(const FrustumClass & frustum,const AABoxClass & box,int & planes_passed);
+	static OverlapType	Overlap_Test(const FrustumClass & frustum,const OBBoxClass & box,int & planes_passed);
+
+	// Miscellaneous other Overlap tests
+	static OverlapType	Overlap_Test(const Vector3 & min,const Vector3 & max,const LineSegClass & line);
+
+	////////////////////////////////////////////////////////////////////////////////////////
+	// Collision Functions.
+	// Collide the first operand into the last operand.
+	// For example Collide(box,move,tri) tests for collision between a box moving into
+	// a triangle.
+	////////////////////////////////////////////////////////////////////////////////////////
+
+	// Line segment functions.  Intersect this line segment with the given object
+	static bool		Collide(const LineSegClass & line,const AAPlaneClass & plane,CastResultStruct * result);
+	static bool		Collide(const LineSegClass & line,const PlaneClass & plane,CastResultStruct * result);
+	static bool		Collide(const LineSegClass & line,const TriClass & tri,CastResultStruct * result);
+	static bool		Collide(const LineSegClass & line,const SphereClass & sphere,CastResultStruct * result);
+	static bool		Collide(const LineSegClass & line,const AABoxClass & box,CastResultStruct * result);
+	static bool		Collide(const LineSegClass & line,const OBBoxClass & box,CastResultStruct * result);
+
+	// AABox functions
+	static bool		Collide(const AABoxClass & box,const Vector3 & move,const PlaneClass & plane,CastResultStruct * result);
+	static bool		Collide(const AABoxClass & box,const Vector3 & move,const TriClass & tri,CastResultStruct * result);
+	static bool		Collide(const AABoxClass & box,const Vector3 & move,const AABoxClass & box2,CastResultStruct * result);
+	static bool		Collide(const AABoxClass & box,const Vector3 & move,const OBBoxClass & box2,const Vector3 & move2,CastResultStruct * result);
+
+	// OBBox functions
+	static bool		Collide(const OBBoxClass & box,const Vector3 & move,const PlaneClass & plane,CastResultStruct * result);
+	static bool		Collide(const OBBoxClass & box,const Vector3 & move,const TriClass & tri,const Vector3 & move2,CastResultStruct * result);
+	static bool		Collide(const OBBoxClass & box,const Vector3 & move,const AABoxClass & box2,const Vector3 & move2,CastResultStruct * result);
+	static bool		Collide(const OBBoxClass & box,const Vector3 & move,const OBBoxClass & box2,const Vector3 & move2,CastResultStruct * result);
+
+	////////////////////////////////////////////////////////////////////////////////////////
+	// Stats 
+	// Note that these functions will only work if you have stat tracking enabled
+	////////////////////////////////////////////////////////////////////////////////////////
+	struct ColmathStatsStruct
+	{	
+		ColmathStatsStruct(void);
+		void Reset(void);
+
+		int TotalCollisionCount;
+		int TotalCollisionHitCount;
+
+		int CollisionRayTriCount;
+		int CollisionRayTriHitCount;
+
+		int CollisionAABoxTriCount;
+		int CollisionAABoxTriHitCount;
+		int CollisionAABoxAABoxCount;
+		int CollisionAABoxAABoxHitCount;
+
+		int CollisionOBBoxTriCount;
+		int CollisionOBBoxTriHitCount;
+		int CollisionOBBoxAABoxCount;
+		int CollisionOBBoxAABoxHitCount;
+		int CollisionOBBoxOBBoxCount;
+		int CollisionOBBoxOBBoxHitCount;
+	};
+	
+	static void									Reset_Stats(void)				{ Stats.Reset(); }
+	static const ColmathStatsStruct &	Get_Current_Stats(void)		{ return Stats; }
+
+private:
+
+	static OverlapType eval_overlap_mask(int mask);
+	static OverlapType eval_overlap_collision(const CastResultStruct & res);
+
+	static const float COINCIDENCE_EPSILON;
+
+	static ColmathStatsStruct				Stats;
+};
+
+
+inline CollisionMath::OverlapType CollisionMath::eval_overlap_mask(int mask)
+{
+	// check if all verts are "ON"
+	if (mask == ON) {
+		return ON;
+	}
+
+	// check if all verts are either "ON" or "POS"
+	if ((mask & ~(POS | ON)) == 0) {
+		return POS;
+	}
+
+	// check if all verts are either "ON" or "BACK"
+	if ((mask & ~(NEG | ON)) == 0) {
+		return NEG;
+	}
+
+	// otherwise, poly spans the plane.
+	return BOTH;
+}
+
+
+inline CollisionMath::OverlapType CollisionMath::eval_overlap_collision(const CastResultStruct & res)
+{
+	if (res.Fraction < 1.0f) {
+		return BOTH;
+	} else {
+		if (res.StartBad) {
+			return NEG;
+		} else {
+			return POS;
+		}
+	}
+}
+
+
+/*
+** Stat tracking Macros
+*/
+#ifdef COLMATH_STAT_TRACKING
+#define TRACK_COLLISION_RAY_TRI				Stats.CollisionRayTriCount++; Stats.TotalCollisionCount++;
+#define TRACK_COLLISION_RAY_TRI_HIT			Stats.CollisionRayTriHitCount++; Stats.TotalCollisionHitCount;
+#define TRACK_COLLISION_AABOX_TRI			Stats.CollisionAABoxTriCount++; Stats.TotalCollisionCount++;
+#define TRACK_COLLISION_AABOX_TRI_HIT		Stats.CollisionAABoxTriHitCount++; Stats.TotalCollisionHitCount++;
+#define TRACK_COLLISION_AABOX_AABOX			Stats.CollisionAABoxAABoxCount++; Stats.TotalCollisionCount++;
+#define TRACK_COLLISION_AABOX_AABOX_HIT	Stats.CollisionAABoxAABoxHitCount++; Stats.TotalCollisionHitCount++;
+#define TRACK_COLLISION_OBBOX_TRI			Stats.CollisionOBBoxTriCount++; Stats.TotalCollisionCount++;
+#define TRACK_COLLISION_OBBOX_TRI_HIT		Stats.CollisionOBBoxTriHitCount++; Stats.TotalCollisionHitCount++;
+#define TRACK_COLLISION_OBBOX_AABOX			Stats.CollisionOBBoxAABoxCount++; Stats.TotalCollisionCount++;
+#define TRACK_COLLISION_OBBOX_AABOX_HIT	Stats.CollisionOBBoxAABoxHitCount++; Stats.TotalCollisionHitCount++;
+#define TRACK_COLLISION_OBBOX_OBBOX			Stats.CollisionOBBoxOBBoxCount++; Stats.TotalCollisionCount++;
+#define TRACK_COLLISION_OBBOX_OBBOX_HIT	Stats.CollisionOBBoxOBBoxHitCount++; Stats.TotalCollisionHitCount++;
+#else
+#define TRACK_COLLISION_RAY_TRI				
+#define TRACK_COLLISION_RAY_TRI_HIT			
+#define TRACK_COLLISION_AABOX_TRI			
+#define TRACK_COLLISION_AABOX_TRI_HIT		
+#define TRACK_COLLISION_AABOX_AABOX			
+#define TRACK_COLLISION_AABOX_AABOX_HIT	
+#define TRACK_COLLISION_OBBOX_TRI			
+#define TRACK_COLLISION_OBBOX_TRI_HIT		
+#define TRACK_COLLISION_OBBOX_AABOX			
+#define TRACK_COLLISION_OBBOX_AABOX_HIT	
+#define TRACK_COLLISION_OBBOX_OBBOX			
+#define TRACK_COLLISION_OBBOX_OBBOX_HIT	
+#endif
+
+#endif // COLMATH_H

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmathaabox.cpp

@@ -0,0 +1,596 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmathaabox.cpp                      $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 8/30/01 7:40p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 22                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   CollisionMath::Intersection_Test -- Test intersection between two AABoxes                 *
+ *   CollisionMath::Overlap_Test -- Tests overlap between an AABox and a sphere                *
+ *   CollisionMath::Overlap_Test -- Tests overlap between an AABox and a triangle              *
+ *   CollisionMath::Overlap_Test -- Tests overlap between an AABox and a line segment          *
+ *   CollisionMath::Collide -- Collision test for a moving AABox and a plane                   *
+ *   aab_separation_test -- tests two AAB's for separation on an axis                          *
+ *   CollisionMath::Collide -- Collision test for two moving AABoxes                           *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "colmath.h"
+#include "colmathinlines.h"
+#include "aaplane.h"
+#include "plane.h"
+#include "lineseg.h"
+#include "tri.h"
+#include "sphere.h"
+#include "aabox.h"
+#include "obbox.h"
+#include "wwdebug.h"
+
+
+/***********************************************************************************************
+ * CollisionMath::Intersection_Test -- Test intersection between two AABoxes                   *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/19/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+bool CollisionMath::Intersection_Test(const AABoxClass & box,const AABoxClass & box2)
+{
+	Vector3 dc = box2.Center - box.Center;
+
+	if (box.Extent.X + box2.Extent.X < WWMath::Fabs(dc.X)) return false;
+	if (box.Extent.Y + box2.Extent.Y < WWMath::Fabs(dc.Y)) return false;
+	if (box.Extent.Z + box2.Extent.Z < WWMath::Fabs(dc.Z)) return false;
+	return true;
+}
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- Tests overlap between an AABox and a sphere                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/19/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+CollisionMath::OverlapType CollisionMath::Overlap_Test(const AABoxClass & box,const SphereClass & sphere)
+{
+	// TODO: this function seems incorrect.  Not currently using it though
+	Vector3 dist = sphere.Center - box.Center;
+
+	Vector3 extent;
+	extent.X = box.Extent.X + sphere.Radius;
+	extent.Y = box.Extent.Y + sphere.Radius;
+	extent.Z = box.Extent.Z + sphere.Radius;
+
+	//
+	//	Check to see if the sphere is completely outside the box
+	//
+	if (WWMath::Fabs(dist.X) > extent.X) return OUTSIDE;
+	if (WWMath::Fabs(dist.Y) > extent.Y) return OUTSIDE;
+	if (WWMath::Fabs(dist.Z) > extent.Z) return OUTSIDE;
+
+	return INSIDE;
+}
+
+
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- Tests overlap between an AABox and a line segment            *
+ *                                                                                             *
+ * This function uses separating axes to determine whether an AABox and a line segment overlap *
+ * I wrote it when we found that ray-casting was taking a huge amount of time in Renegade.     *
+ * Here are some statistics comparing this function to the previous function which used the    *
+ * same algorithm that Collide(box,ray) uses.                                                  *
+ *                                                                                             *
+ *                  collide algorithm (Gems)                separating axis (this one)         *
+ * -----------------------------------------------------------------------------------------   *
+ * number of tests      10000                                  10000                           *
+ * avg cycles             641                                    464                           *
+ * outside cycles         652                                    390                           *
+ * overlap cycles         610                                    683                           *
+ *                                                                                             *
+ * The idea for this test is that it will early-exit when it can while the old test can't.     *
+ * When we are passing a ray down our culling trees, it is common to encounter boxes that      *
+ * are not intersecting the ray.  The faster we can reject these, the better!                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ * box - box to test                                                                           *
+ * line - line to test                                                                         *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ * overlap status of the line with respect to the box, either INSIDE, OUTSIDE, or OVERLAPPED   *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/19/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+CollisionMath::OverlapType CollisionMath::Overlap_Test(const AABoxClass & box,const LineSegClass & line)
+{
+	// If both endpoints are in, return INSIDE
+	// If either was inside, return OVERLAPPED
+	int inside_point_count = 0;
+	if (CollisionMath::Overlap_Test(box,line.Get_P0()) == INSIDE) inside_point_count++;
+	if (CollisionMath::Overlap_Test(box,line.Get_P1()) == INSIDE) inside_point_count++;
+	
+	if (inside_point_count == 2) {
+	
+		return INSIDE;
+	
+	} else if (inside_point_count == 1) {
+	
+		return OVERLAPPED;
+	
+	} else {
+
+		// Here I'm using the separating axis theorem to test if the line-segment
+		// and the box can be separated by a plane.  Any two convex objects that are
+		// not intersecting can be separated by a plane defined by either a 
+		// face normal from one of the objects or the cross-product of an edge from 
+		// each object.  In the case of an axis-aligned box and a line-segment, we
+		// have to check the three coordinate axes and the cross product between
+		// each and the direction vector of the line segment.
+		//
+		// Here is the general test for an arbitrary axis:
+		// -----------------------------------------------
+		// box_proj = fabs(extent.X*axis.X) + fabs(extent.Y*axis.Y) + fabs(extent.Z*axis.Z)
+		// p0_proj = fabs(dot_product(dp0,axis))
+		// dp_proj = fabs(dot_product(dp,axis))
+		// if (p0_proj > 0) {
+		// 	if (p0_proj > box_proj - WWMath::Min(dp_proj,0.0f)) return OUTSIDE;
+		// } else {
+		// 	if (-p0_proj > box_proj + WWMath::Max(dp_proj,0.0f)) return OUTSIDE;
+		// }
+		//
+		// In practice, there are optimizations you can make on each of the axes that
+		// we need to test (see below).
+
+		float box_proj,p0_proj,dp_proj;
+		Vector3 dp0;
+		Vector3::Subtract(line.Get_P0(),box.Center,&dp0);
+
+		// Project box and line onto the x-axis
+		// Since I know the axis is the x-axis, just take the x components of each
+		// vector instead of doing the dot-product.  The projection of 'dp' is only
+		// counted if it points towards the center of the box (i.e. it decreases the
+		// chances of them being separated...)
+		box_proj = box.Extent.X;
+		p0_proj = dp0.X;
+		dp_proj = line.Get_DP().X;
+		if (p0_proj > 0) {
+			if (p0_proj > box_proj - WWMath::Min(dp_proj,0.0f)) return OUTSIDE;
+		} else {
+			if (-p0_proj > box_proj + WWMath::Max(dp_proj,0.0f)) return OUTSIDE;
+		}
+
+		// Project box and line onto the y-axis
+		box_proj = box.Extent.Y;
+		p0_proj = dp0.Y;
+		dp_proj = line.Get_DP().Y;
+		if (p0_proj > 0) {
+			if (p0_proj > box_proj - WWMath::Min(dp_proj,0.0f)) return OUTSIDE;
+		} else {
+			if (-p0_proj > box_proj + WWMath::Max(dp_proj,0.0f)) return OUTSIDE;
+		}
+
+		// Project box and line onto the z-axis
+		box_proj = box.Extent.Z;
+		p0_proj = dp0.Z;
+		dp_proj = line.Get_DP().Z;
+		if (p0_proj > 0) {
+			if (p0_proj > box_proj - WWMath::Min(dp_proj,0.0f)) return OUTSIDE;
+		} else {
+			if (-p0_proj > box_proj + WWMath::Max(dp_proj,0.0f)) return OUTSIDE;
+		}
+	
+		// Project box and line onto (x cross line)
+		// I'm manually optimizing the cross-product and taking advantage of the fact
+		// that 'dp' will always project to zero for this axis.
+		Vector3 axis;
+		axis.Set(0,-line.Get_Dir().Z,line.Get_Dir().Y);	// == (1,0,0) cross (x,y,z)
+		box_proj = WWMath::Fabs(axis.Y*box.Extent.Y) + WWMath::Fabs(axis.Z*box.Extent.Z);
+		p0_proj = Vector3::Dot_Product(axis,dp0);
+		if (WWMath::Fabs(p0_proj) > box_proj) return OUTSIDE;
+
+		// Project box and line onto (y cross line)
+		axis.Set(line.Get_Dir().Z,0,-line.Get_Dir().X);	// == (0,1,0) cross (x,y,z)
+		box_proj = WWMath::Fabs(axis.X*box.Extent.X) + WWMath::Fabs(axis.Z*box.Extent.Z);
+		p0_proj = Vector3::Dot_Product(axis,dp0);
+		if (WWMath::Fabs(p0_proj) > box_proj) return OUTSIDE;
+
+		// Project box and line onto (z cross line)
+		axis.Set(-line.Get_Dir().Y,line.Get_Dir().X,0);	// == (0,0,1) cross (x,y,z)
+		box_proj = WWMath::Fabs(axis.X*box.Extent.X) + WWMath::Fabs(axis.Y*box.Extent.Y);
+		p0_proj = Vector3::Dot_Product(axis,dp0);
+		if (WWMath::Fabs(p0_proj) > box_proj) return OUTSIDE;
+
+	}
+	return OVERLAPPED;
+}
+
+#if 0 // Alternate Overlap Test for AABox-Ray
+CollisionMath::OverlapType CollisionMath::Overlap_Test(const AABoxClass & box,const LineSegClass & line)
+{
+	// If both endpoints are in, return INSIDE
+	// If either was inside, return OVERLAPPED
+	int inside_point_count = 0;
+	if (CollisionMath::Overlap_Test(box,line.Get_P0()) == INSIDE) inside_point_count++;
+	if (CollisionMath::Overlap_Test(box,line.Get_P1()) == INSIDE) inside_point_count++;
+	
+	if (inside_point_count == 2) {
+	
+		return INSIDE;
+	
+	} else if (inside_point_count == 1) {
+	
+		return OVERLAPPED;
+	
+	} else {
+
+		// Now we know that both points are outside of the box so we 
+		// have to detect if the ray penetrates the box.
+		// I found this algorithm in one of the GEMS books...
+		Vector3 boxmin,boxmax;
+		Vector3::Subtract(box.Center,box.Extent,&boxmin);
+		Vector3::Add(box.Center,box.Extent,&boxmax);
+
+		float candidateplane[3];	// candidate intersection plane distance for each axis 
+		float maxt[3];					// t value along the ray for each axis
+		Vector3 coord;					// intersection point
+
+		const int BOX_SIDE_NEGATIVE = -1;
+		const int BOX_SIDE_MIDDLE = 0;
+		const int BOX_SIDE_POSITIVE = 1;
+
+		int quadrant[3];
+		for (int i=0; i<3; i++) {
+			if (line.Get_P0()[i] < boxmin[i]) {
+				quadrant[i] = BOX_SIDE_NEGATIVE;
+				candidateplane[i] = boxmin[i];
+			} else if (line.Get_P0()[i] > boxmax[i]) {
+				quadrant[i] = BOX_SIDE_POSITIVE;
+				candidateplane[i] = boxmax[i];
+			} else {
+				quadrant[i] = BOX_SIDE_MIDDLE;
+			}
+		}
+
+		// Calculate the 3 distances to the candidate planes
+		for (i=0; i<3; i++) {
+			if (quadrant[i] != BOX_SIDE_MIDDLE && line.Get_DP()[i] != 0.0f) {
+				maxt[i] = (candidateplane[i] - line.Get_P0()[i]) / line.Get_DP()[i];
+			} else {
+				maxt[i] = -1.0f;
+			}
+		}
+
+		// Get the largest of the maxt's for the final choice of intersection
+		int intersection_plane = 0;
+		for (i=1; i<3; i++) {
+			if (maxt[i] > maxt[intersection_plane]) {
+				intersection_plane = i;
+			}
+		}
+
+		// If the ray is "in front" of all of the planes, return
+		if (maxt[intersection_plane] < 0.0f) {
+			return OUTSIDE;
+		}
+		
+		// If the intersection is beyond the end of the ray, return
+		if (maxt[intersection_plane] > 1.0f) {
+			return OUTSIDE;
+		}
+
+		// Check if the ray is inside the box, i.e. on the two planes which
+		// are not the intersection planes, the intersection point should
+		// be between the min and max of the box.
+		for (i=0; i<3; i++) {
+			
+			if (intersection_plane != i) {
+			
+				coord[i] = line.Get_P0()[i] + maxt[intersection_plane] * line.Get_DP()[i];
+				if ((coord[i] < boxmin[i]) || (coord[i] > boxmax[i])) {
+					return OUTSIDE;		// ray is outside the box
+				} 
+
+			} else {
+
+				coord[i] = candidateplane[i];
+
+			}
+		}
+	}
+	return OVERLAPPED;
+}
+#endif // Alternate Overlap Test for AABox-Ray
+
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- Tests overlap between an AABox and a triangle                *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/19/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+CollisionMath::OverlapType CollisionMath::Overlap_Test(const AABoxClass & box,const TriClass & tri)
+{
+	CastResultStruct res;
+	CollisionMath::Collide(box,Vector3(0,0,0),tri,&res);
+	return eval_overlap_collision(res);
+}
+
+
+/***********************************************************************************************
+ * CollisionMath::Collide -- Collision test for a moving AABox and a plane                     *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/19/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+bool CollisionMath::Collide
+(
+	const AABoxClass &		box,
+	const Vector3 &			move_vector,
+	const PlaneClass &		plane,
+	CastResultStruct *		result
+)
+{
+	float frac;
+
+	float extent = box.Project_To_Axis(plane.N);
+	float dist = Vector3::Dot_Product(plane.N,box.Center) + plane.D;
+	float move = Vector3::Dot_Product(plane.N,move_vector);
+
+	if (dist > extent) {
+		if (dist + move > extent) {
+			// entire move ok!
+			frac = 1.0f;
+		} else {
+			// partial move allowed
+			frac = (extent - dist) / move;
+		}
+
+	} else if (dist < -extent) {
+		if (dist + move < -extent) {
+			// entire move ok!
+			frac = 1.0f;
+		} else {
+			// partial move allowed
+			frac = (-extent - dist) / move;
+		}
+
+	} else {
+		result->StartBad = true;
+		result->Normal = plane.N;
+		return true;
+	}
+
+	if (frac < result->Fraction) {
+		result->Fraction = frac;
+		result->Normal = plane.N;
+		if (result->ComputeContactPoint) {
+			Vector3 move_dir(move_vector);
+			move_dir.Normalize();
+			float move_extent = Vector3::Dot_Product(box.Extent,move_dir);
+			result->ContactPoint = box.Center + result->Fraction * move_vector + move_extent * move_dir;
+		}
+		return true;
+	}
+
+	return false;
+}
+
+
+
+
+
+/*
+** AABCollisionStruct
+** Contains all of the intermediate and temporary values used by
+** the set of functions used in detecting collisions for aab's
+*/
+struct AABCollisionStruct
+{
+	AABCollisionStruct(const AABoxClass &box0,const Vector3 &move0,const AABoxClass & box1,const Vector3 &move1) :
+		StartBad(true),													// Startbad is true until one of the axes clears it
+		AxisId(-1),															// AxisId will be the axis that allowed the longest move
+		MaxFrac(0.0f),														// MaxFrac is the longest allowed move so far
+		Box0(box0),															
+		Box1(box1)
+	{
+		Vector3::Subtract(box1.Center,box0.Center,&C);			// vector from center of box0 to center of box1
+		Vector3::Subtract(move1,move0,&M);							// move vector relative to stationary box0
+	}
+
+	bool						StartBad;			// Inital configuration is intersecting?
+	float						MaxFrac;				// Longest move allowed so far
+	int						AxisId;				// Last separating axis
+	int						Side;					// which side of the interval
+
+	Vector3					C;						// Vector from the center0 to center1
+	Vector3					M;						// Move vector relative to stationary box0
+	
+	const AABoxClass &	Box0;
+	const AABoxClass &	Box1;
+
+private:
+
+	//not implemented
+	AABCollisionStruct(const AABCollisionStruct&);
+	AABCollisionStruct & operator = (const AABCollisionStruct&);
+};
+
+
+/***********************************************************************************************
+ * aab_separation_test -- tests two AAB's for separation on an axis                            *
+ *                                                                                             *
+ * This function is very similar to the obb_separation_test.  If a flaw is found in either,    *
+ * we should update the other...                                                               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/19/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+static inline bool aab_separation_test
+(
+	AABCollisionStruct & context,
+	int						axis
+)
+{
+	// ra = box0 projection onto the axis
+	// rb = box1 projection onto the axis
+	// u0 = projected distance between the box centers at t0
+	// u1 = projected distance between the box centers at t1
+	float ra = context.Box0.Extent[axis];
+	float rb = context.Box1.Extent[axis];
+	float u0 = context.C[axis];
+	float u1 = u0 + context.M[axis];
+
+	float tmp;
+	float rsum = ra+rb;
+
+	if ( u0 + WWMATH_EPSILON > rsum ) { 
+		context.StartBad = false; 
+		if ( u1 > rsum ) { 
+			context.MaxFrac = 1.0f; 
+			return true;
+		} else { 
+			tmp = (rsum-u0)/(u1-u0);
+			if ( tmp > context.MaxFrac ) {
+				context.MaxFrac = tmp; 
+				context.AxisId = axis;
+				context.Side = +1;
+			}
+		}
+	} else if ( u0 - WWMATH_EPSILON < -rsum ) {
+		context.StartBad = false;
+		if ( u1 < -rsum ) {
+			context.MaxFrac = 1.0f; 
+			return true;
+		} else {
+			tmp = (-rsum-u0)/(u1-u0);
+			if ( tmp > context.MaxFrac ) {
+				context.MaxFrac = tmp;
+				context.AxisId = axis;
+				context.Side = -1;
+			} 
+		} 
+	} 
+	return false;
+}
+
+
+/***********************************************************************************************
+ * CollisionMath::Collide -- Collision test for two moving AABoxes                             *
+ *                                                                                             *
+ * this function sweeps two AABoxes and finds the first time of collision.                     *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ * currently there is no parateter for the movement of the second box.  the internal code      *
+ * can handle it though.                                                                       *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/19/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+bool CollisionMath::Collide(const AABoxClass & box,const Vector3 & move,const AABoxClass & box2,CastResultStruct * result)
+{
+	/*
+	**	Test the X-axis
+	** ra = box projection onto the axis
+	** rb = box2 projection onto the axis
+	** u0 = projected distance between the box centers at t0
+	** u1 = projected distance between the box centers at t1
+	*/
+	AABCollisionStruct context(box,move,box2,Vector3(0,0,0));
+
+	if (aab_separation_test(context,0)) {
+		goto exit;
+	}
+
+	if (aab_separation_test(context,1)) {
+		goto exit;
+	}
+	
+	if (aab_separation_test(context,2)) {
+		goto exit;
+	}
+
+exit:
+
+	if (context.StartBad) {
+		result->StartBad = true;
+		result->Fraction = 0.0f;
+		return true;
+	}
+
+	if (context.MaxFrac < result->Fraction) {
+
+		result->Fraction = context.MaxFrac;
+		result->Normal.Set(0,0,0);
+		result->Normal[context.AxisId] = -context.Side;
+
+		if (result->ComputeContactPoint) {
+			//WWASSERT(0); // TODO
+			WWDEBUG_SAY(("AABox-AABox collision does not currently support contact point computation\r\n"));
+		}
+
+		return true;
+	}
+	return false;
+}

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmathaabox.h

@@ -0,0 +1,110 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmathaabox.h                        $*
+ *                                                                                             *
+ *              Original Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                      $Author:: Jani_p                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 5/08/01 5:01p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 8                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   CollisionMath::Overlap_Test -- test overlap between an AABox and a point                  *
+ *   CollisionMath::Overlap_Test -- Tests overlap between two AABoxes                          *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef COLMATHAABOX_H
+#define COLMATHAABOX_H
+
+#include "always.h"
+#include "aabox.h"
+#include "vector3.h"
+#include "lineseg.h"
+
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- test overlap between an AABox and a point                    *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/14/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE CollisionMath::OverlapType CollisionMath::Overlap_Test(const AABoxClass & box,const Vector3 & point)
+{
+	if (WWMath::Fabs(point.X - box.Center.X) > box.Extent.X) return POS;
+	if (WWMath::Fabs(point.Y - box.Center.Y) > box.Extent.Y) return POS;
+	if (WWMath::Fabs(point.Z - box.Center.Z) > box.Extent.Z) return POS;
+
+	return NEG;
+}
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- Tests overlap between two AABoxes                            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/19/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE CollisionMath::OverlapType CollisionMath::Overlap_Test(const AABoxClass & box,const AABoxClass & box2)
+{
+	Vector3 dc;
+	Vector3::Subtract(box2.Center,box.Center,&dc);
+
+	if (box.Extent.X + box2.Extent.X < WWMath::Fabs(dc.X)) return POS;
+	if (box.Extent.Y + box2.Extent.Y < WWMath::Fabs(dc.Y)) return POS;
+	if (box.Extent.Z + box2.Extent.Z < WWMath::Fabs(dc.Z)) return POS;
+
+	if (	(dc.X + box2.Extent.X <= box.Extent.X) &&
+			(dc.Y + box2.Extent.Y <= box.Extent.Y) &&
+			(dc.Z + box2.Extent.Z <= box.Extent.Z) &&
+			(dc.X - box2.Extent.X >= -box.Extent.X) &&
+			(dc.Y - box2.Extent.Y >= -box.Extent.Y) &&
+			(dc.Z - box2.Extent.Z >= -box.Extent.Z))
+	{
+		return NEG;	// inside;
+	}
+
+	return BOTH;
+}
+
+#endif
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmathfrustum.cpp

@@ -0,0 +1,190 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmathfrustum.cpp                    $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 3/29/00 5:40p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 7                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "colmath.h"
+#include "colmathinlines.h"
+#include "aaplane.h"
+#include "plane.h"
+#include "lineseg.h"
+#include "tri.h"
+#include "sphere.h"
+#include "aabox.h"
+#include "obbox.h"
+#include "frustum.h"
+#include "wwdebug.h"
+
+
+// TODO: Most of these overlap functions actually do not catch all cases of when
+// the primitive is outside of the frustum...
+
+
+// Frustum functions
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const FrustumClass & frustum,const Vector3 & point)
+{
+	int mask = 0;
+	
+	for (int i = 0; i < 6; i++) {
+		int result = CollisionMath::Overlap_Test(frustum.Planes[i],point);
+		if (result == OUTSIDE) {
+			return OUTSIDE;
+		}
+		mask |= result;
+	}
+
+	if (mask == INSIDE) {
+		return INSIDE;
+	}
+	return OVERLAPPED;
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const FrustumClass & frustum,const TriClass & tri)
+{
+	int mask = 0;
+	
+	// TODO: doesn't catch all cases...
+	for (int i = 0; i < 6; i++) {
+		int result = CollisionMath::Overlap_Test(frustum.Planes[i],tri);
+		if (result == OUTSIDE) {
+			return OUTSIDE;
+		}
+		mask |= result;
+	}
+
+	if (mask == INSIDE) {
+		return INSIDE;
+	}
+	return OVERLAPPED;
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const FrustumClass & frustum,const SphereClass & sphere)
+{
+	int mask = 0;
+	
+	// TODO: doesn't catch all cases...
+	for (int i = 0; i < 6; i++) {
+		int result = CollisionMath::Overlap_Test(frustum.Planes[i],sphere);
+		if (result == OUTSIDE) {
+			return OUTSIDE;
+		}
+		mask |= result;
+	}
+
+	if (mask == INSIDE) {
+		return INSIDE;
+	}
+	return OVERLAPPED;
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const FrustumClass & frustum,const AABoxClass & box)
+{
+	int mask = 0;
+	
+	// TODO: doesn't catch all cases...
+	for (int i = 0; i < 6; i++) {
+		int result = CollisionMath::Overlap_Test(frustum.Planes[i],box);
+		if (result == OUTSIDE) {
+			return OUTSIDE;
+		}
+		mask |= result;
+	}
+
+	if (mask == INSIDE) {
+		return INSIDE;
+	}
+	return OVERLAPPED;
+}
+
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const FrustumClass & frustum,const OBBoxClass & box)
+{
+	int mask = 0;
+	
+	// TODO: doesn't catch all cases...
+	for (int i = 0; i < 6; i++) {
+		int result = CollisionMath::Overlap_Test(frustum.Planes[i],box);
+		if (result == OUTSIDE) {
+			return OUTSIDE;
+		}
+		mask |= result;
+	}
+
+	if (mask == INSIDE) {
+		return INSIDE;
+	}
+	return OVERLAPPED;
+}
+
+
+CollisionMath::OverlapType	
+CollisionMath::Overlap_Test(const FrustumClass & frustum,const OBBoxClass & box,int & planes_passed)
+{
+	int mask = 0;
+	
+	// TODO: doesn't catch all cases...
+	for (int i = 0; i < 6; i++) {
+
+		int plane_bit = (1<<i);
+
+		// only check this plane if we have to	
+		if ((planes_passed & plane_bit) == 0) {
+			
+			int result = CollisionMath::Overlap_Test(frustum.Planes[i],box);
+			if (result == OUTSIDE) {
+				return OUTSIDE;
+			} else if (result == INSIDE) {
+				planes_passed |= plane_bit;
+			}
+			mask |= result;
+
+		} else {
+		
+			mask |= INSIDE;
+
+		}
+	}
+
+	if (mask == INSIDE) {
+		return INSIDE;
+	}
+	return OVERLAPPED;
+}
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmathfrustum.h

@@ -0,0 +1,105 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmathfrustum.h                      $*
+ *                                                                                             *
+ *              Original Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                      $Author:: Jani_p                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 5/04/01 8:25p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 3                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   CollisionMath::Overlap_Test -- test a frustum and an AABox for overlap                    *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef COLMATHFRUSTUM_H
+#define COLMATHFRUSTUM_H
+
+#include "always.h"
+#include "aabox.h"
+#include "vector3.h"
+#include "lineseg.h"
+#include "frustum.h"
+
+/*
+** Inline collision functions dealing with frustums
+*/
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- test a frustum and an AABox for overlap                      *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/29/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+inline 
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const FrustumClass & frustum,const AABoxClass & box,int & planes_passed)
+{
+	int mask = 0;
+
+	// TODO: doesn't catch all cases...
+	for (int i = 0; i < 6; i++) {
+
+		int plane_bit = (1<<i);
+	
+		// only check this plane if we have to	
+		if ((planes_passed & plane_bit) == 0) {
+		
+			int result = CollisionMath::Overlap_Test(frustum.Planes[i],box);
+			if (result == OUTSIDE) {
+
+				return OUTSIDE;
+			} else if (result == INSIDE) {
+				planes_passed |= plane_bit;
+			}
+			mask |= result;
+		
+		} else {
+		
+			mask |= INSIDE;
+		
+		}
+	}
+
+	if (mask == INSIDE) {
+		return INSIDE;
+	}
+	return OVERLAPPED;
+}
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmathinlines.h

@@ -0,0 +1,53 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmathinlines.h                      $*
+ *                                                                                             *
+ *              Original Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                      $Author:: Greg_h                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 3/29/00 5:36p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 2                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef COLMATHINLINES_H
+#define COLMATHINLINES_H
+
+#include "colmathaabox.h"
+#include "colmathfrustum.h"
+#include "colmathline.h"
+#include "colmathplane.h"
+
+#endif
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmathline.cpp

@@ -0,0 +1,484 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /VSS_Sync/wwmath/colmathline.cpp                            $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 8/29/01 10:25p                                              $*
+ *                                                                                             *
+ *                    $Revision:: 10                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "colmath.h"
+#include "aaplane.h"
+#include "plane.h"
+#include "lineseg.h"
+#include "tri.h"
+#include "sphere.h"
+#include "aabox.h"
+#include "obbox.h"
+#include "wwdebug.h"
+
+
+/*
+** Structure used in the line->box test.  There was a lot of common code between the axis-
+** aligned and oriented box tests so I package all of the truely relevant information into 
+** this struct and pass it into a function local to this module.  In the case of oriented 
+** boxes, the ray must be transformed into the box's coordinate system prior to the call 
+** and the normal is calculated slightly differently.
+*/
+struct BoxTestStruct
+{
+	Vector3		Min;
+	Vector3		Max;
+	Vector3		P0;
+	Vector3		DP;
+	float			Fraction;
+	bool			Inside;
+	int			Axis;
+	int			Side;
+};
+
+/*
+** Enumeration which can be used to categorize a point with respect to the projection
+** of a box onto an axis.  The point will either be to the negative side of the span, in the
+** span, or on the positive side of the span.
+*/
+enum BoxSideType {
+	BOX_SIDE_NEGATIVE = 0,
+	BOX_SIDE_POSITIVE = 1,
+	BOX_SIDE_MIDDLE = 2
+};
+
+
+/*
+** Table of normals for an axis aligned box.
+** access like this:
+**
+** _box_normal[AXIS][SIDE] 
+**
+** <AXIS> is 0,1,2 meaning x,y,z
+** <SIDE> is BOX_SIDE_NEGATIVE or BOX_SIDE_POSITIVE
+*/
+static Vector3 _box_normal[3][2] =
+{
+	// plane = 0 (x axis)
+	{
+		Vector3(-1,0,0),	// Left
+		Vector3(1,0,0) 	// Right
+	},
+	// plane = 1 (y axis)
+	{
+		Vector3(0,-1,0),
+		Vector3(0,1,0)
+	},
+	// plane = 2 (z axis)
+	{
+		Vector3(0,0,-1),
+		Vector3(0,0,1)
+	}
+};
+
+/*
+** Local function prototypes
+*/
+inline bool Test_Aligned_Box(BoxTestStruct * test);
+
+
+bool CollisionMath::Collide(const LineSegClass & line,const AAPlaneClass & plane,CastResultStruct * result)
+{
+	float num,den,t;
+
+	den = line.Get_DP()[plane.Normal];
+
+	/*
+	** Check if line is parallel to this plane
+	*/
+	if (den == 0.0f) {
+		return false;
+	}
+
+	num = -(line.Get_P0()[plane.Normal] - plane.Dist);
+	t = num/den;
+
+	/*
+	** If t is not between 0 and 1, the line containing the segment intersects
+	** the plane but the segment does not
+	*/
+	if ((t < 0.0f) || (t > 1.0f)) {
+		return false;
+	}
+
+	/*
+	** Ok, we hit the plane!
+	*/
+	if (t < result->Fraction) {
+		result->Fraction = t;
+		result->Normal.Set(0,0,0);
+		result->Normal[plane.Normal] = 1.0f;
+		return true;
+	}
+	return false;
+}
+
+
+bool CollisionMath::Collide(const LineSegClass & line,const PlaneClass & plane,CastResultStruct * result)
+{
+	float num,den,t;
+	den = Vector3::Dot_Product(plane.N,line.Get_DP());
+
+	/*
+	** If the denominator is zero, the ray is parallel to the plane
+	*/
+	if (den == 0.0f) {
+		return false;
+	}
+
+	num = -(Vector3::Dot_Product(plane.N,line.Get_P0()) - plane.D);
+	t = num/den;
+
+	/*
+	** If t is not between 0 and 1, the line containing the segment intersects
+	** the plane but the segment does not
+	*/
+	if ((t < 0.0f) || (t > 1.0f)) {
+		return false;
+	}
+
+	/*
+	** Ok, we hit the plane!
+	*/
+	if (t < result->Fraction) {
+		result->Fraction = t;
+		result->Normal = plane.N;
+
+		/*
+		** if user is asking for the point, compute it.
+		*/
+		if (result->ComputeContactPoint) {
+			result->ContactPoint = line.Get_P0() + result->Fraction * line.Get_DP();
+		}
+		return true;
+	}
+	return false;
+}
+
+bool CollisionMath::Collide(const LineSegClass & line,const TriClass & tri,CastResultStruct * res)
+{
+	TRACK_COLLISION_RAY_TRI;
+
+	/*
+	** Compute intersection of the line with the plane of the polygon
+	*/
+	PlaneClass plane(*tri.N,*tri.V[0]);
+	Vector3 ipoint;
+	float num,den,t;
+
+	den = Vector3::Dot_Product(plane.N,line.Get_DP());
+	
+	/*
+	** If the denominator is zero, the ray is parallel to the plane
+	*/
+	if (den == 0.0f) {
+		return false;
+	}
+	num = -(Vector3::Dot_Product(plane.N,line.Get_P0()) - plane.D);
+	t = num/den;
+
+	/*
+	** If t is not between 0 and 1, the line containing the segment intersects
+	** the plane but the segment does not
+	*/
+	if ((t < 0.0f) || (t > 1.0f)) {
+		return false;
+	}
+
+	ipoint = line.Get_P0() + t*line.Get_DP();
+
+	/*
+	** Check if this point is inside the triangle
+	*/
+	if (!tri.Contains_Point(ipoint)) {
+		return false;
+	}
+
+	/*
+	** Ok, we hit the triangle, set the collision results
+	*/
+	if (t < res->Fraction) {
+		res->Fraction = t;
+		res->Normal = plane.N;
+		if (res->ComputeContactPoint) {
+			res->ContactPoint = line.Get_P0() + res->Fraction * line.Get_DP();
+		}
+		TRACK_COLLISION_RAY_TRI_HIT;
+		return true;
+	}
+	return false;
+}
+
+bool CollisionMath::Collide(const LineSegClass & line,const SphereClass & sphere,CastResultStruct * res)
+{
+	// this game from graphics gems 1, page 388
+	// intersection of a ray with a sphere
+	Vector3 dc = sphere.Center - line.Get_P0();
+	float clen = Vector3::Dot_Product((dc) , line.Get_Dir());
+	float disc = (sphere.Radius * sphere.Radius) - (dc.Length2() - clen*clen);
+	if (disc < 0.0f) {
+		return false;
+	} else {
+		float d = WWMath::Sqrt(disc);
+		float frac = (clen - d) / line.Get_Length();
+		if (frac<0.0f)
+			frac = (clen + d) / line.Get_Length();
+		if (frac<0.0f) return false;
+		if (frac < res->Fraction) {
+
+			res->Fraction = frac;
+
+			Vector3 p = line.Get_P0() + (clen - d)*line.Get_Dir();
+			Vector3 norm = p - sphere.Center;
+			norm /= sphere.Radius;
+			
+			res->Normal = norm;
+			if (res->ComputeContactPoint) {
+				res->ContactPoint = line.Get_P0() + res->Fraction * line.Get_DP();
+			}
+			return true;
+		}
+	}
+	return false;
+}
+
+bool CollisionMath::Collide(const LineSegClass & line,const AABoxClass & box,CastResultStruct * res)
+{
+	// set up the test struct
+	BoxTestStruct test;
+	test.Min = box.Center - box.Extent;
+	test.Max = box.Center + box.Extent;
+	test.P0 = line.Get_P0();
+	test.DP = line.Get_DP();
+
+	// check ray against the box, exit if the ray totally missed the box,
+	if (!Test_Aligned_Box(&test)) {
+		return false;
+	}
+
+	// if ray starts inside the box, note that fact and bail.
+	if (test.Inside) {
+		res->StartBad = true;	
+		return true;	
+	}
+
+	// Now, if this intersection is before any current intersection
+	// that we've found, install our intersection
+	if (test.Fraction < res->Fraction) {
+		res->Fraction = test.Fraction;
+		assert(test.Side != BOX_SIDE_MIDDLE);
+		res->Normal = _box_normal[test.Axis][test.Side];
+		if (res->ComputeContactPoint) {
+			res->ContactPoint = line.Get_P0() + res->Fraction * line.Get_DP();
+		}
+		return true;
+	}
+	return false;
+}
+
+bool CollisionMath::Collide(const LineSegClass & line,const OBBoxClass & box,CastResultStruct * result)
+{
+	// set up the test struct
+	BoxTestStruct test;
+	test.Min = box.Center - box.Extent;
+	test.Max = box.Center + box.Extent;
+
+	test.P0 = (box.Basis.Transpose() * (line.Get_P0() - box.Center)) + box.Center;
+	test.DP = box.Basis.Transpose() * line.Get_DP();
+
+	// check ray against the box, exit if the ray totally missed the box,
+	if (!Test_Aligned_Box(&test)) {
+		return false;
+	}
+
+	// if ray starts inside the box, don't collide
+	if (test.Inside) {
+		result->StartBad = true;	
+		return true;
+	}
+
+	// Now, if this intersection is before any current intersection
+	// that we've found, install our intersection
+	if (test.Fraction < result->Fraction) {
+		result->Fraction = test.Fraction;
+		assert(test.Side != BOX_SIDE_MIDDLE);
+		
+		switch (test.Axis) {
+			case 0:
+				result->Normal.Set(box.Basis[0][0],box.Basis[1][0],box.Basis[2][0]);
+				break;
+
+			case 1:
+				result->Normal.Set(box.Basis[0][1],box.Basis[1][1],box.Basis[2][1]);
+				break;
+
+			case 2:
+				result->Normal.Set(box.Basis[0][2],box.Basis[1][2],box.Basis[2][2]);
+				break;
+		}
+
+		if (test.Side == BOX_SIDE_NEGATIVE) {
+			result->Normal = -result->Normal;
+		}
+		if (result->ComputeContactPoint) {
+			result->ContactPoint = line.Get_P0() + result->Fraction * line.Get_DP();
+		}
+		return true;
+	}
+	return false;
+}
+
+
+
+/***********************************************************************************************
+ * Test_Aligned_Box -- used as the guts of the Box intersection tests                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/20/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline bool Test_Aligned_Box(BoxTestStruct * test)
+{
+	int i;
+
+	// candidate intersection plane distance for each axis 
+	float candidateplane[3];
+
+	// t value along the ray for each axis
+	float maxt[3];
+
+	// intersection point
+	Vector3 coord;
+
+	// which "side" of the box for each axis
+	int quadrant[3];
+	bool inside = true;
+
+	for (i=0; i<3; i++) {
+		if (test->P0[i] < test->Min[i]) {
+			quadrant[i] = BOX_SIDE_NEGATIVE;
+			candidateplane[i] = test->Min[i];
+			inside = false;
+		} else if (test->P0[i] > test->Max[i]) {
+			quadrant[i] = BOX_SIDE_POSITIVE;
+			candidateplane[i] = test->Max[i];
+			inside = false;
+		} else {
+			quadrant[i] = BOX_SIDE_MIDDLE;
+		}
+	}
+	
+	/*
+	** Ray started out inside the box...
+	*/
+	if (inside) {
+		test->Fraction = 0.0f;
+		test->Inside = true;
+		return true;
+	}
+
+	/*
+	** Calculate the 3 distances to the candidate planes
+	*/
+	for (i=0; i<3; i++) {
+		if (quadrant[i] != BOX_SIDE_MIDDLE && test->DP[i] != 0.0f) {
+			maxt[i] = (candidateplane[i] - test->P0[i]) / test->DP[i];
+		} else {
+			maxt[i] = -1.0f;
+		}
+	}
+
+	/*
+	** Get the largest of the maxt's for the final choice of intersection
+	*/
+	int intersection_plane = 0;
+	
+	for (i=1; i<3; i++) {
+		if (maxt[i] > maxt[intersection_plane]) {
+			intersection_plane = i;
+		}
+	}
+
+	/*
+	** If the ray is "in front" of all of the planes, return
+	*/
+	if (maxt[intersection_plane] < 0.0f) {
+		return false;
+	}
+
+	/*
+	** Check if the ray is inside the box, i.e. on the two planes which
+	** are not the intersection planes, the intersection point should
+	** be between the min and max of the box.
+	*/
+	for (i=0; i<3; i++) {
+		
+		if (intersection_plane != i) {
+		
+			coord[i] = test->P0[i] + maxt[intersection_plane] * test->DP[i];
+			
+			if ((coord[i] < test->Min[i]) || (coord[i] > test->Max[i])) {
+
+				return false;		// ray is outside the box
+			
+			} 
+
+		} else {
+
+			coord[i] = candidateplane[i];
+
+		}
+	}
+
+	/*
+	** Fill in the intersection values
+	*/
+	test->Fraction = maxt[intersection_plane];
+	test->Inside = false;
+	test->Axis = intersection_plane;
+	test->Side = quadrant[intersection_plane];
+	return true;
+}
+
+
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmathline.h

@@ -0,0 +1,64 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmathline.h                         $*
+ *                                                                                             *
+ *              Original Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                      $Author:: Greg_h                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 3/16/00 3:46p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 1                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#ifndef COLMATHLINE_H
+#define COLMATHLINE_H
+
+/*
+** Inline collision functions dealing with line segments
+*/
+
+
+inline CollisionMath::OverlapType	CollisionMath::Overlap_Test
+(
+	const Vector3 &		min,
+	const Vector3 &		max,
+	const LineSegClass & line
+)
+{
+	AABoxClass box;
+	box.Init_Min_Max(min,max);
+	return CollisionMath::Overlap_Test(box,line);
+}
+
+
+
+
+#endif
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmathobbox.cpp

@@ -0,0 +1,171 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmathobbox.cpp                      $*
+ *                                                                                             *
+ *                   Org Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                       Author : Kenny Mitchell                                               * 
+ *                                                                                             *
+ *                     $Modtime:: 06/26/02 4:04p                                             $*
+ *                                                                                             *
+ *                    $Revision:: 9                                                           $*
+ *                                                                                             *
+ * 06/26/02 KM Matrix name change to avoid MAX conflicts                                       *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "colmath.h"
+#include "aaplane.h"
+#include "plane.h"
+#include "lineseg.h"
+#include "tri.h"
+#include "sphere.h"
+#include "aabox.h"
+#include "obbox.h"
+#include "wwdebug.h"
+
+
+
+// OBBox functions, where is operand B with respect to the OBBox
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const OBBoxClass & box,const Vector3 & point)
+{
+	// transform point into box coordinate system
+	Vector3 localpoint;
+	Matrix3x3::Transpose_Rotate_Vector(box.Basis,(point - box.Center),&localpoint);
+
+	// if the point is outside any of the extents, it is outside the box
+	if (WWMath::Fabs(localpoint.X) > box.Extent.X) {
+		return OUTSIDE;
+	}
+	if (WWMath::Fabs(localpoint.Y) > box.Extent.Y) {
+		return OUTSIDE;
+	}
+	if (WWMath::Fabs(localpoint.Z) > box.Extent.Z) {
+		return OUTSIDE;
+	}
+	return INSIDE;
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const OBBoxClass & box,const LineSegClass & line)
+{
+	CastResultStruct res;
+	Collide(line,box,&res);
+	return eval_overlap_collision(res);
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const OBBoxClass & box,const TriClass & tri)
+{
+	CastResultStruct res;
+	Collide(box,Vector3(0,0,0),tri,Vector3(0,0,0),&res);
+	return eval_overlap_collision(res);
+}
+
+CollisionMath::OverlapType 
+CollisionMath::Overlap_Test(const AABoxClass & aabox,const OBBoxClass & obbox)
+{
+	if (CollisionMath::Intersection_Test(aabox,obbox)) {
+		return BOTH;	// inside or overlapping
+	} else {
+		return OUTSIDE;
+	}
+}
+
+CollisionMath::OverlapType 
+CollisionMath::Overlap_Test(const OBBoxClass & obbox,const AABoxClass & aabox)
+{
+	if (CollisionMath::Intersection_Test(obbox,aabox)) {
+		return BOTH;	// inside or overlapping
+	} else {
+		return OUTSIDE;
+	}
+}
+
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const OBBoxClass & box,const OBBoxClass & box2)
+{
+	CastResultStruct res;
+	Collide(box,Vector3(0,0,0),box2,Vector3(0,0,0),&res);
+	return eval_overlap_collision(res);
+}
+
+bool CollisionMath::Collide
+(
+	const OBBoxClass &		box,
+	const Vector3 &			move_vector,
+	const PlaneClass &		plane,
+	CastResultStruct *		result
+)
+{
+	float frac;
+
+	float extent = box.Project_To_Axis(plane.N);
+	float dist = Vector3::Dot_Product(plane.N,box.Center) + plane.D;
+	float move = Vector3::Dot_Product(plane.N,move_vector);
+
+	if (dist > extent) {
+		if (dist + move > extent) {
+			// entire move ok!
+			frac = 1.0f;
+		} else {
+			// partial move allowed
+			frac = (extent - dist) / move;
+		}
+
+	} else if (dist < -extent) {
+		if (dist + move < -extent) {
+			// entire move ok!
+			frac = 1.0f;
+		} else {
+			// partial move allowed
+			frac = (-extent - dist) / move;
+		}
+	} else {
+		result->StartBad = true;
+		result->Normal = plane.N;
+		return true;
+	}
+
+	if (frac < result->Fraction) {
+		result->Fraction = frac;
+		result->Normal = plane.N;
+		if (result->ComputeContactPoint) {
+
+			Vector3 move_dir(move_vector);
+			move_dir.Normalize();
+			float move_extent = Vector3::Dot_Product(move_dir,box.Extent);
+			result->ContactPoint = box.Center + result->Fraction*move_vector  + move_extent*move_dir;
+
+		}
+		return true;
+	}
+	return false;
+}
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmathplane.cpp

@@ -0,0 +1,197 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmathplane.cpp                      $*
+ *                                                                                             *
+ *                    Org Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                       Author : Kenny Mitchell                                               * 
+ *                                                                                             * 
+ *                     $Modtime:: 06/26/02 4:04p                                             $*
+ *                                                                                             *
+ *                    $Revision:: 10                                                           $*
+ *                                                                                             *
+ * 06/26/02 KM Matrix name change to avoid MAX conflicts                                       *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "colmath.h"
+#include "colmathplane.h"
+#include "aaplane.h"
+#include "plane.h"
+#include "lineseg.h"
+#include "tri.h"
+#include "sphere.h"
+#include "aabox.h"
+#include "obbox.h"
+#include "wwdebug.h"
+
+
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const AAPlaneClass & plane,const Vector3 & point)
+{
+	float delta = point[plane.Normal] - plane.Dist;
+	if (delta > COINCIDENCE_EPSILON) {
+		return POS;
+	} 
+	if (delta < -COINCIDENCE_EPSILON) {
+		return NEG;
+	}
+	return ON;
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const AAPlaneClass & plane,const LineSegClass & line)
+{
+	int mask = 0;
+	mask |= CollisionMath::Overlap_Test(plane,line.Get_P0());
+	mask |= CollisionMath::Overlap_Test(plane,line.Get_P1());
+	return eval_overlap_mask(mask);
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const AAPlaneClass & plane,const TriClass & tri)
+{
+	int mask = 0;
+	mask |= CollisionMath::Overlap_Test(plane,*tri.V[0]);
+	mask |= CollisionMath::Overlap_Test(plane,*tri.V[1]);
+	mask |= CollisionMath::Overlap_Test(plane,*tri.V[2]);
+	return eval_overlap_mask(mask);
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const AAPlaneClass & plane,const SphereClass & sphere)
+{
+	float delta = sphere.Center[plane.Normal] - plane.Dist;
+	if (delta > sphere.Radius) {
+		return POS;
+	} 
+	if (delta < sphere.Radius) {
+		return NEG;
+	}
+	return BOTH;
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const AAPlaneClass & plane,const AABoxClass & box)
+{
+	float delta;
+	int mask = 0;
+
+	// check the 'min' side of the box
+	delta = (box.Center[plane.Normal] - box.Extent[plane.Normal]) - plane.Dist;
+	if (delta > WWMATH_EPSILON) {
+		mask |= POS;
+	} else if (delta < -WWMATH_EPSILON) {
+		mask |= NEG;
+	} else {
+		mask |= ON;
+	}
+	
+	// check the 'max' side of the box
+	delta = (box.Center[plane.Normal] + box.Extent[plane.Normal]) - plane.Dist;
+	if (delta > WWMATH_EPSILON) {
+		mask |= POS;
+	} else if (delta < -WWMATH_EPSILON) {
+		mask |= NEG;
+	} else {
+		mask |= ON;
+	}
+	
+	return eval_overlap_mask(mask);
+}
+
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const AAPlaneClass & /*plane*/,const OBBoxClass & /*box*/)
+{
+// TODO
+	WWASSERT(0);
+	return POS;
+}
+
+
+// Plane functions.  Where is operand B with respect to the plane
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const PlaneClass & plane,const LineSegClass & line)
+{
+	int mask = 0;
+	mask |= CollisionMath::Overlap_Test(plane,line.Get_P0());
+	mask |= CollisionMath::Overlap_Test(plane,line.Get_P1());
+	return eval_overlap_mask(mask);
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const PlaneClass & plane,const TriClass & tri)
+{
+	int mask = 0;
+	mask |= CollisionMath::Overlap_Test(plane,*tri.V[0]);
+	mask |= CollisionMath::Overlap_Test(plane,*tri.V[1]);
+	mask |= CollisionMath::Overlap_Test(plane,*tri.V[2]);
+	return eval_overlap_mask(mask);
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const PlaneClass & plane,const SphereClass & sphere)
+{
+	float dist = Vector3::Dot_Product(sphere.Center,plane.N) - plane.D;
+	if (dist > sphere.Radius) {
+		return POS;
+	} 
+	if (dist < -sphere.Radius) {
+		return NEG;
+	}
+	return BOTH;
+}
+
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const PlaneClass & plane,const OBBoxClass & box)
+{
+	// rotate the plane normal into box coordinates
+	Vector3 local_normal;
+	Vector3 posfarpt;
+	Vector3 negfarpt;
+	Matrix3x3::Transpose_Rotate_Vector(box.Basis,plane.N,&local_normal);
+
+	get_far_extent(local_normal,box.Extent,&posfarpt);
+
+	// transform the two extreme box coordinates into world space
+	Matrix3x3::Rotate_Vector(box.Basis,posfarpt,&posfarpt);
+	negfarpt = -posfarpt;
+	posfarpt += box.Center;
+	negfarpt += box.Center;
+	
+	// overlap test
+	if (Overlap_Test(plane,negfarpt) == POS) {
+		return POS;
+	}
+	if (Overlap_Test(plane,posfarpt) == NEG) {
+		return NEG;
+	}
+	return BOTH;
+}

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmathplane.h

@@ -0,0 +1,154 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmathplane.h                        $*
+ *                                                                                             *
+ *              Original Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                      $Author:: Greg_h                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 3/29/00 4:42p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 2                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   get_far_extent -- gets extents of a box projected onto an axis                            *
+ *   CollisionMath::Overlap_Test -- Tests overlap between a plane and a point                  *
+ *   CollisionMath::Overlap_Test -- Tests overlap between a plane and an AABox                 *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#ifndef COLMATHPLANE_H
+#define COLMATHPLANE_H
+
+#include "always.h"
+#include "plane.h"
+#include "aabox.h"
+
+/*
+** Inline collision functions dealing with planes
+** This module is meant to be included only in .CPP files after you include colmath.h
+** It is not automatically included in order to reduce file dependencies...
+*/
+
+/***********************************************************************************************
+ * get_far_extent -- gets extents of a box projected onto an axis                              *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/29/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+inline void get_far_extent(const Vector3 & normal,const Vector3 & extent,Vector3 * posfarpt)
+{
+	if (WWMath::Fast_Is_Float_Positive(normal.X)) {
+		posfarpt->X = extent.X;
+	} else {
+		posfarpt->X = -extent.X;
+	}
+
+	if (WWMath::Fast_Is_Float_Positive(normal.Y)) {
+		posfarpt->Y = extent.Y;
+	} else {
+		posfarpt->Y = -extent.Y;
+	}
+
+	if (WWMath::Fast_Is_Float_Positive(normal.Z)) {
+		posfarpt->Z = extent.Z;
+	} else {
+		posfarpt->Z = -extent.Z;
+	}
+}
+
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- Tests overlap between a plane and a point                    *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/29/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+inline 
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const PlaneClass & plane,const Vector3 & point)
+{
+	float delta = Vector3::Dot_Product(point,plane.N) - plane.D;
+	if (delta > COINCIDENCE_EPSILON) {
+		return POS;
+	} 
+	if (delta < -COINCIDENCE_EPSILON) {
+		return NEG;
+	}
+	return ON;
+}
+
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- Tests overlap between a plane and an AABox                   *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/29/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+inline
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const PlaneClass & plane,const AABoxClass & box)
+{
+	// First, we determine the the near and far points of the box in the
+	// direction of the plane normal
+	Vector3 posfarpt;
+	Vector3 negfarpt;
+
+	get_far_extent(plane.N,box.Extent,&posfarpt);
+	
+	negfarpt = -posfarpt;
+	posfarpt += box.Center;
+	negfarpt += box.Center;
+	if (Overlap_Test(plane,negfarpt) == POS) {
+		return POS;
+	}
+	if (Overlap_Test(plane,posfarpt) == NEG) {
+		return NEG;
+	}
+	return BOTH;
+}
+
+
+#endif
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/colmathsphere.cpp

@@ -0,0 +1,249 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/colmathsphere.cpp                     $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 4/25/01 2:05p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 6                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   CollisionMath::Intersection_Test -- Sphere - AAbox intersection                           *
+ *   CollisionMath::Intersection_Test -- Sphere - OBBox intersection                           *
+ *   CollisionMath::Overlap_Test -- Sphere - Point overlap test                                *
+ *   CollisionMath::Overlap_Test -- sphere line overlap test                                   *
+ *   CollisionMath::Overlap_Test -- sphere triangle overlap test                               *
+ *   CollisionMath::Overlap_Test -- Sphere - Sphere overlap test                               *
+ *   CollisionMath::Overlap_Test -- Sphere - AABox overlap test                                *
+ *   CollisionMath::Overlap_Test -- Sphere - OBBox overlap test                                *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "colmath.h"
+#include "aaplane.h"
+#include "plane.h"
+#include "lineseg.h"
+#include "tri.h"
+#include "sphere.h"
+#include "aabox.h"
+#include "obbox.h"
+#include "wwdebug.h"
+
+
+// Sphere Intersection fucntions.  Does the sphere intersect the passed in object
+/***********************************************************************************************
+ * CollisionMath::Intersection_Test -- Sphere - AAbox intersection                             *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/25/2001  gth : Created.                                                                 *
+ *=============================================================================================*/
+bool CollisionMath::Intersection_Test(const SphereClass & sphere,const AABoxClass & box)
+{
+	/*
+	** Simple but slightly inaccurate test, expand the box by the sphere's radius, then 
+	** test whether the sphere is contained in that new box.  This is actually testing
+	** against a cube which encloses the sphere...
+	*/
+	Vector3 dc = box.Center - sphere.Center;
+	if (WWMath::Fabs(dc.X) < box.Extent.X + sphere.Radius) return false;
+	if (WWMath::Fabs(dc.Y) < box.Extent.Y + sphere.Radius) return false;
+	if (WWMath::Fabs(dc.Z) < box.Extent.Z + sphere.Radius) return false;
+	return true;
+}
+
+
+/***********************************************************************************************
+ * CollisionMath::Intersection_Test -- Sphere - OBBox intersection                             *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/25/2001  gth : Created.                                                                 *
+ *=============================================================================================*/
+bool CollisionMath::Intersection_Test(const SphereClass & sphere,const OBBoxClass & box)
+{
+	/*
+	** Compute the sphere's position in the box's coordinate system
+	*/
+	Matrix3D tm(box.Basis,box.Center);
+	Vector3 box_rel_center;
+	Matrix3D::Inverse_Transform_Vector(tm,sphere.Center,&box_rel_center);
+
+	if (box.Extent.X < WWMath::Fabs(box_rel_center.X)) return false;
+	if (box.Extent.Y < WWMath::Fabs(box_rel_center.Y)) return false;
+	if (box.Extent.Z < WWMath::Fabs(box_rel_center.Z)) return false;
+
+	return true;
+}
+
+// Sphere Overlap functions.  Where is operand B with respect to the sphere
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- Sphere - Point overlap test                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/25/2001  gth : Created.                                                                 *
+ *=============================================================================================*/
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const SphereClass & sphere,const Vector3 & point)
+{
+	float r2 = (point - sphere.Center).Length2();
+	if (r2 < sphere.Radius * sphere.Radius - COINCIDENCE_EPSILON) {
+		return NEG;
+	}
+	if (r2 > sphere.Radius * sphere.Radius + COINCIDENCE_EPSILON) {
+		return POS;
+	}
+	return ON;
+}
+
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- sphere line overlap test                                     *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/25/2001  gth : Created.                                                                 *
+ *=============================================================================================*/
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const SphereClass & /*sphere*/,const LineSegClass & /*line*/)
+{
+	WWASSERT(0); //TODO
+	return POS;
+}
+
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- sphere triangle overlap test                                 *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/25/2001  gth : Created.                                                                 *
+ *=============================================================================================*/
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const SphereClass & /*sphere*/,const TriClass & /*tri*/)
+{
+	WWASSERT(0); //TODO
+	return POS;
+}
+
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- Sphere - Sphere overlap test                                 *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/25/2001  gth : Created.                                                                 *
+ *=============================================================================================*/
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const SphereClass & sphere,const SphereClass & sphere2)
+{
+	CollisionMath::OverlapType retval = OUTSIDE;
+
+	float radius	= sphere.Radius + sphere2.Radius;
+	float dist2		= (sphere2.Center - sphere.Center).Length2();
+	
+	if (dist2 == 0 && sphere.Radius == sphere2.Radius) {
+		retval = OVERLAPPED;
+	} else if (dist2 <= radius * radius - COINCIDENCE_EPSILON) {
+		retval = INSIDE;
+	}
+
+	return retval;
+}
+
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- Sphere - AABox overlap test                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/25/2001  gth : Created.                                                                 *
+ *=============================================================================================*/
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const SphereClass & sphere,const AABoxClass & aabox)
+{
+	// TODO: overlap function that detects containment?
+	return ( Intersection_Test(sphere,aabox) ? BOTH : POS );
+}
+
+
+/***********************************************************************************************
+ * CollisionMath::Overlap_Test -- Sphere - OBBox overlap test                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/25/2001  gth : Created.                                                                 *
+ *=============================================================================================*/
+CollisionMath::OverlapType
+CollisionMath::Overlap_Test(const SphereClass & sphere,const OBBoxClass & obbox)
+{
+	// TODO: overlap function that detects containment?
+	return ( Intersection_Test(sphere,obbox) ? BOTH : POS );
+}
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/cullsys.cpp

@@ -0,0 +1,154 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /VSS_Sync/wwmath/cullsys.cpp                                $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 10/16/00 11:42a                                             $*
+ *                                                                                             *
+ *                    $Revision:: 5                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "cullsys.h"
+#include "wwdebug.h"
+#include "wwprofile.h"
+
+
+/*************************************************************************
+**
+** CullableClass Implementation
+**
+*************************************************************************/
+CullableClass::CullableClass(void) :
+	CullLink(NULL),
+	NextCollected(NULL)
+{
+	CullBox.Init(Vector3(0,0,0),Vector3(1,1,1));
+}
+
+CullableClass::~CullableClass(void)
+{
+	// the cull system that contains us is responsible for any culling link
+	// so we better be out of it and it should have cleared our pointer before
+	// we are deleted.
+	WWASSERT(CullLink == NULL);
+}
+
+void CullableClass::Set_Cull_Box(const AABoxClass & box,bool just_loaded)
+{
+	CullBox = box;
+	
+	WWPROFILE("Cullable::Set_Cull_Box");
+
+	// Just_loaded flag allows us to update the box without notifying the
+	// culling system.  Use this when you've saved and loaded the linkage 
+	// so you know you're in the right node of the culling system...
+	if (!just_loaded) {
+		CullSystemClass * sys = Get_Culling_System();
+		if (sys != NULL) {
+			sys->Update_Culling(this);
+		}
+	}
+}
+
+void CullableClass::Set_Culling_System(CullSystemClass * sys)
+{
+	if (CullLink) {
+		CullLink->Set_Culling_System(sys);
+	}
+}
+
+CullSystemClass * CullableClass::Get_Culling_System(void) const
+{
+	if (CullLink) {
+		return CullLink->Get_Culling_System();
+	}
+	return NULL;
+}
+
+
+/*************************************************************************
+**
+** CullSystemClass Implementation
+** 
+** The base CullSystemClass mainly contains code for maintaining the
+** current collection list and iterating through it.
+**
+*************************************************************************/
+CullSystemClass::CullSystemClass(void) :
+	CollectionHead(NULL)
+{
+}
+
+CullSystemClass::~CullSystemClass(void)
+{
+}
+
+// NOTE: THE Get_() functions currently are the same as the Peek_() functions (e.g., they do not
+// add a Ref). This is wrong and will be fixed.
+CullableClass * CullSystemClass::Get_First_Collected_Object_Internal(void)
+{
+	return CollectionHead;
+}
+
+CullableClass * CullSystemClass::Get_Next_Collected_Object_Internal(CullableClass * obj)
+{
+	if (obj != NULL) {
+		return obj->NextCollected;
+	}
+	return NULL;
+}
+
+CullableClass * CullSystemClass::Peek_First_Collected_Object_Internal(void)
+{
+	return CollectionHead;
+}
+
+CullableClass * CullSystemClass::Peek_Next_Collected_Object_Internal(CullableClass * obj)
+{
+	if (obj != NULL) {
+		return obj->NextCollected;
+	}
+	return NULL;
+}
+
+void CullSystemClass::Reset_Collection(void)
+{
+	CollectionHead = NULL;
+}
+
+void CullSystemClass::Add_To_Collection(CullableClass * obj)
+{
+	WWASSERT(obj != NULL);
+	obj->NextCollected = CollectionHead;
+	CollectionHead = obj;
+}
+
+
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/cullsys.h

@@ -0,0 +1,201 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/cullsys.h                             $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 5/08/01 6:33p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 5                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef CULLSYS_H
+#define CULLSYS_H
+
+#include "wwdebug.h"
+#include "stdlib.h"
+#include "refcount.h"
+#include "aabox.h"
+
+class CullableClass;
+class CullSystemClass;
+class FrustumClass;
+
+/*
+** CullLinkClass
+** This class will serve as a base class for the various types of linkage information
+** that the Cullable instances will need.  Each CullableClass will have a pointer to
+** a class derived from CullLinkClass where the different culling systems can store
+** things.
+*/
+class CullLinkClass
+{
+public:
+	WWINLINE CullLinkClass(CullSystemClass * system)								{ System = system; WWASSERT(System); }
+	virtual ~CullLinkClass(void)												{ WWASSERT(System == NULL); }
+	
+	WWINLINE void					Set_Culling_System(CullSystemClass * sys)		{ System = sys; }	
+	WWINLINE CullSystemClass * Get_Culling_System(void)							{ return System; }
+
+protected:
+	CullSystemClass * System;
+};
+
+
+/*
+** CullableClass
+** This is the base class for any object that can be inserted into a culling system
+** This class provides an axis aligned bounding box and some linkage variables which
+** allow it to be processed by any culling system.
+*/
+class CullableClass : public RefCountClass
+{
+public:
+	
+	CullableClass(void);
+	virtual ~CullableClass(void);
+	
+	/*
+	** Access to the culling box for this object.  When you set the cull box, you are
+	** basically guaranteeing that the object is contained within the given box.  The
+	** object will automatically be updated in whatever culling system it is currently
+	** contained in (if any)
+	*/
+	WWINLINE const AABoxClass & Get_Cull_Box(void) const							{ return CullBox; }
+	void								Set_Cull_Box(const AABoxClass & box,bool just_loaded = false);
+
+	/*
+	** These functions are used by various culling systems to manage the linkage 
+	** pointers.  *The average user should NEVER call these*
+	*/
+	void								Set_Culling_System(CullSystemClass * sys);
+	CullSystemClass *				Get_Culling_System(void) const;
+	WWINLINE void					Set_Cull_Link(CullLinkClass * c)					{ CullLink = c; }
+	WWINLINE CullLinkClass *	Get_Cull_Link(void) const							{ return CullLink; }
+
+private:
+
+	WWINLINE void					Set_Next_Collected(CullableClass * c)			{ NextCollected = c; }
+	WWINLINE CullableClass *	Get_Next_Collected(void)							{ return NextCollected; }
+
+	/*
+	** Culling Data
+	** Each object can be linked into various types of culling systems.
+	** Each culling system can use its own linkage data structure (derived
+	** from CullLinkClass) to keep track of the object.  The CullData pointer 
+	** will point to one of the culling link objects and NULL
+	** if its not in any system.
+	*/
+	CullLinkClass *				CullLink;
+
+	/*
+	** Bounding Box
+	** Any objects derived from Cullable should update the bounding box
+	** whenever the object moves or changes size.  In order to do this,
+	** call Set_Cull_Box...
+	*/
+	AABoxClass						CullBox;
+
+	/*
+	** NextCollected
+	** This pointer is used by the culling system to keep a singly linked 
+	** list of cullable object that have been "collected". 
+	*/
+	CullableClass *				NextCollected;
+
+	// Not Implemented:
+	CullableClass(const CullableClass & src);
+	CullableClass & operator = (const CullableClass & src);
+
+	friend class CullSystemClass;
+};
+
+
+
+
+/*
+** CullSystemClass
+** Base class of any culling system.  This interface exists so that things can
+** be shuffled around without having explicit knowledge of what system they are in.
+*/
+class CullSystemClass
+{
+public:
+
+	CullSystemClass(void);
+	virtual ~CullSystemClass(void);
+
+	/*
+	** Collect_Objects.  Updates the internal collection list with the
+	** objects that overlap the given primitive. 
+	** WARNING: This builds an internal list that is only valid until
+	** another list is built, only one list can be valid at any time.
+	** WARNING: Always call Reset_Collection if you want to start a 
+	** fresh collection!
+	*/
+	void					Reset_Collection(void);
+	virtual void		Collect_Objects(const Vector3 & point)					= 0;
+	virtual void		Collect_Objects(const AABoxClass & box)				= 0;
+	virtual void		Collect_Objects(const OBBoxClass & box)				= 0;
+	virtual void		Collect_Objects(const FrustumClass & frustum)		= 0;
+
+	/*
+	** This object has moved or changed size, update it
+	*/
+	virtual void		Update_Culling(CullableClass * obj)						= 0;
+
+protected:
+
+	/*
+	** Iterate through the collected objects
+	*/
+	CullableClass *	Get_First_Collected_Object_Internal(void);
+	CullableClass *	Get_Next_Collected_Object_Internal(CullableClass * obj);
+	CullableClass *	Peek_First_Collected_Object_Internal(void);
+	CullableClass *	Peek_Next_Collected_Object_Internal(CullableClass * obj);
+
+	/*
+	** Build the list of collected objects
+	*/
+	void					Add_To_Collection(CullableClass * obj);
+
+	/*
+	** Pointer to the head of the current collection of objects
+	*/
+	CullableClass *	CollectionHead;
+
+	friend class CullableClass;
+};
+
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/culltype.h

@@ -0,0 +1,62 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/culltype.h                            $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 10/23/98 2:34p                                              $*
+ *                                                                                             *
+ *                    $Revision:: 3                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef CULLTYPE_H
+#define CULLTYPE_H
+
+#include "always.h"
+
+/*
+** CullType is an enumeration of the possible results of a culling 
+** operation.  It is placed here so that all of the different cull functions
+** (which are scattered throughout WWMath, WW3D, WWPhys, etc) can
+** communicate the result in a consistent way
+*/
+
+typedef enum CULLTYPE
+{
+	CULL_OUTSIDE = 0,			// the object was completely outside the culling volume
+	CULL_INTERSECTING,		// the object intersects an edge of the culling volume
+	CULL_INSIDE					// the object is completely inside the culling volume
+};
+
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/curve.cpp

@@ -0,0 +1,591 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /VSS_Sync/wwmath/curve.cpp                                  $*
+ *                                                                                             *
+ *              Original Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                      $Author:: Vss_sync                                                    $*
+ *                                                                                             *
+ *                     $Modtime:: 6/13/01 2:18p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 9                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "curve.h"
+#include "wwdebug.h"
+#include "persistfactory.h"
+#include "wwmathids.h"
+#include "wwhack.h"
+
+/*
+** Force-Link this module because the linker can't detect that we actually need it...
+*/
+DECLARE_FORCE_LINK(curve);
+
+/*
+** Persist factories and chunk-id's used to save and load.
+*/
+SimplePersistFactoryClass<LinearCurve3DClass,WWMATH_CHUNKID_LINEARCURVE3D>	_LinearCurve3DFactory;
+SimplePersistFactoryClass<LinearCurve1DClass,WWMATH_CHUNKID_LINEARCURVE1D>	_LinearCurve1DFactory;
+
+enum 
+{
+	// ID's used by Curve3D
+	CURVE3D_CHUNK_VARIABLES					= 0x00020651,			
+	CURVE3D_CHUNK_KEYS,			
+
+	CURVE3D_VARIABLE_ISLOOPING				= 0x00,
+	CURVE3D_VARIABLE_KEYCOUNT,
+
+	// ID's used by LinearCurve3D
+	LINEARCURVE3D_CHUNK_CURVE3D			= 0x00020653,
+
+	// ID's used by Curve1D
+	CURVE1D_CHUNK_VARIABLES					= 0x00020655,			
+	CURVE1D_CHUNK_KEYS,			
+
+	CURVE1D_VARIABLE_ISLOOPING				= 0x00,
+	CURVE1D_VARIABLE_KEYCOUNT,
+
+	// ID's used by LinearCurve1D
+	LINEARCURVE1D_CHUNK_CURVE1D			= 0x00020657,
+
+};
+
+
+/***********************************************************************************************
+**
+** Curve3DCLass Implementation
+**
+***********************************************************************************************/
+Curve3DClass::Curve3DClass(void) :
+	IsLooping(false)
+{
+}
+
+Curve3DClass::Curve3DClass(const Curve3DClass & that)
+{
+	*this = that;
+}
+
+Curve3DClass::~Curve3DClass(void)
+{
+}
+
+Curve3DClass & Curve3DClass::operator = (const Curve3DClass & that)
+{
+	IsLooping = that.IsLooping;
+	Keys = that.Keys;
+	return *this;
+}
+
+bool Curve3DClass::Is_Looping(void)
+{
+	return IsLooping;
+}
+
+void Curve3DClass::Set_Looping(bool onoff)
+{
+	IsLooping = onoff;
+}
+
+float Curve3DClass::Get_Start_Time(void)
+{
+	if (Keys.Count() > 0) {
+		return Keys[0].Time;
+	} else {
+		return 0.0f;
+	}
+}
+
+float Curve3DClass::Get_End_Time(void)
+{
+	if (Keys.Count() > 0) {
+		return Keys[Keys.Count() - 1].Time;
+	} else {
+		return 0.0f;
+	}
+}
+
+int Curve3DClass::Key_Count(void)
+{
+	return Keys.Count();
+}
+
+void Curve3DClass::Get_Key(int i,Vector3 * set_point,float * set_t)
+{
+	assert(i >= 0);
+	assert(i < Keys.Count());
+	if (set_point != NULL) {
+		*set_point = Keys[i].Point;
+	}
+	if (set_t != NULL) {
+		*set_t = Keys[i].Time;
+	}
+}
+
+void Curve3DClass::Set_Key(int i,const Vector3 & point)
+{
+	assert(i >= 0);
+	assert(i < Keys.Count());
+	Keys[i].Point = point;
+}	
+
+
+int Curve3DClass::Add_Key(const Vector3 & point,float t)
+{
+	int idx = 0;
+	while (idx < Keys.Count() && Keys[idx].Time < t) {
+		idx++;
+	}
+
+	KeyClass newkey;
+	newkey.Point = point;
+	newkey.Time = t;
+
+	Keys.Insert(idx,newkey);
+	return idx;
+}	
+
+void Curve3DClass::Remove_Key(int i)
+{
+	assert(i >= 0);
+	assert(i < Keys.Count());
+	Keys.Delete(i);	
+}
+
+void Curve3DClass::Clear_Keys(void)
+{
+	Keys.Clear();
+}
+
+void Curve3DClass::Find_Interval(float time,int * i0,int * i1,float * t)
+{
+	WWASSERT(time >= Keys[0].Time);
+	WWASSERT(time <= Keys[Keys.Count()-1].Time);
+
+	int i=0;
+	while (time > Keys[i+1].Time) {
+		i++;
+	}
+	*i0 = i;
+	*i1 = i+1;
+	*t = (time - Keys[i].Time) / (Keys[i+1].Time - Keys[i].Time);
+}
+
+bool Curve3DClass::Save(ChunkSaveClass & csave)
+{
+	int keycount = Keys.Count();
+	csave.Begin_Chunk(CURVE3D_CHUNK_VARIABLES);
+	WRITE_MICRO_CHUNK(csave,CURVE3D_VARIABLE_ISLOOPING,IsLooping);
+	WRITE_MICRO_CHUNK(csave,CURVE3D_VARIABLE_KEYCOUNT,keycount);
+	csave.End_Chunk();
+
+	// Saving the keys, Note that if the format of a key changes we'll
+	// need a new chunk. (I didn't wrap each variable in its own chunk)
+	csave.Begin_Chunk(CURVE3D_CHUNK_KEYS);			
+	for (int i=0; i<keycount; i++) {
+		csave.Write(&(Keys[i].Point),sizeof(Keys[i].Point));
+		csave.Write(&(Keys[i].Time),sizeof(Keys[i].Time));
+	}
+	csave.End_Chunk();
+	return true;
+}
+
+bool Curve3DClass::Load(ChunkLoadClass & cload)
+{
+	int i;
+	int keycount = 0;
+	KeyClass newkey;
+
+	// reset the curve
+	Keys.Delete_All();
+
+	// read in the chunks
+	while (cload.Open_Chunk()) {
+		
+		switch(cload.Cur_Chunk_ID()) 
+		{
+			case CURVE3D_CHUNK_VARIABLES:
+			
+				while (cload.Open_Micro_Chunk()) {
+					switch(cload.Cur_Micro_Chunk_ID()) {
+						READ_MICRO_CHUNK(cload,CURVE3D_VARIABLE_ISLOOPING,IsLooping);
+						READ_MICRO_CHUNK(cload,CURVE3D_VARIABLE_KEYCOUNT,keycount);
+					}
+					cload.Close_Micro_Chunk();	
+				}
+				break;
+
+			case CURVE3D_CHUNK_KEYS:
+				for (i=0; i<keycount; i++) {
+					cload.Read(&(newkey.Point),sizeof(newkey.Point));
+					cload.Read(&(newkey.Time),sizeof(newkey.Time));
+					Keys.Add(newkey);
+				}
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	return true;
+}
+
+
+
+/***********************************************************************************************
+**
+** LinearCurve3DClass Implementation
+** Linear curve, linearly interpolates the keys
+**
+***********************************************************************************************/
+void LinearCurve3DClass::Evaluate(float time,Vector3 * set_val)
+{
+	if (time < Keys[0].Time) {
+		*set_val = Keys[0].Point;
+		return;
+	}
+
+	if (time >= Keys[Keys.Count() - 1].Time) {
+		*set_val = Keys[Keys.Count() - 1].Point;
+		return;
+	}
+
+	int i0,i1;
+	float t;
+	Find_Interval(time,&i0,&i1,&t);
+
+	*set_val = Keys[i0].Point + t * (Keys[i1].Point - Keys[i0].Point);
+}
+
+const PersistFactoryClass & LinearCurve3DClass::Get_Factory(void) const
+{
+	return _LinearCurve3DFactory;
+}
+
+bool LinearCurve3DClass::Save(ChunkSaveClass & csave)
+{
+	csave.Begin_Chunk(LINEARCURVE3D_CHUNK_CURVE3D);
+	Curve3DClass::Save(csave);
+	csave.End_Chunk();
+	return true;
+}
+
+bool LinearCurve3DClass::Load(ChunkLoadClass & cload)
+{
+	while (cload.Open_Chunk()) {
+		
+		switch(cload.Cur_Chunk_ID()) 
+		{
+			case LINEARCURVE3D_CHUNK_CURVE3D:
+				Curve3DClass::Load(cload);
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	return true;
+}
+
+
+/***********************************************************************************************
+**
+** Curve1DClass
+**
+***********************************************************************************************/
+Curve1DClass::Curve1DClass(void) :
+	IsLooping(false)
+{
+}
+
+Curve1DClass::Curve1DClass(const Curve1DClass & that)
+{
+	*this = that;
+}
+
+Curve1DClass::~Curve1DClass(void)
+{
+}
+
+Curve1DClass & Curve1DClass::operator = (const Curve1DClass & that)
+{
+	IsLooping = that.IsLooping;
+	Keys = that.Keys;
+	return *this;
+}
+
+bool Curve1DClass::Is_Looping(void)
+{
+	return IsLooping;
+}
+
+void Curve1DClass::Set_Looping(bool onoff)
+{
+	IsLooping = onoff;
+}
+
+float Curve1DClass::Get_Start_Time(void)
+{
+	if (Keys.Count() > 0) {
+		return Keys[0].Time;
+	} else {
+		return 0.0f;
+	}
+}
+
+float Curve1DClass::Get_End_Time(void)
+{
+	if (Keys.Count() > 0) {
+		return Keys[Keys.Count() - 1].Time;
+	} else {
+		return 0.0f;
+	}
+}
+
+int Curve1DClass::Key_Count(void)
+{
+	return Keys.Count();
+}
+
+void Curve1DClass::Get_Key(int i,float * set_point,float * set_t,unsigned int * extra)
+{
+	assert(i >= 0);
+	assert(i < Keys.Count());
+	if (set_point != NULL) {
+		*set_point = Keys[i].Point;
+	}
+	if (set_t != NULL) {
+		*set_t = Keys[i].Time;
+	}
+	if (extra != NULL) {
+		*extra = Keys[i].Extra;
+	}
+}
+
+void Curve1DClass::Set_Key(int i,float point,unsigned int extra)
+{
+	assert(i >= 0);
+	assert(i < Keys.Count());
+	Keys[i].Point = point;
+	Keys[i].Extra = extra;
+}	
+
+
+int Curve1DClass::Add_Key(float point,float t,unsigned int extra)
+{
+	int idx = 0;
+	while (idx < Keys.Count() && Keys[idx].Time < t) {
+		idx++;
+	}
+
+	KeyClass newkey;
+	newkey.Point = point;
+	newkey.Time = t;
+	newkey.Extra = extra;
+
+	Keys.Insert(idx,newkey);
+	return idx;
+}	
+
+void Curve1DClass::Remove_Key(int i)
+{
+	assert(i >= 0);
+	assert(i < Keys.Count());
+	Keys.Delete(i);	
+}
+
+void Curve1DClass::Clear_Keys(void)
+{
+	Keys.Clear();
+}
+
+void Curve1DClass::Find_Interval(float time,int * i0,int * i1,float * t)
+{
+	if (IsLooping) {
+		if (time < Keys[0].Time) {
+			*i0 = Keys.Count() - 1;
+			*i1 = 0;
+			float interval = 1.0f - Keys[*i0].Time + Keys[*i1].Time;
+			*t = (1.0f - Keys[*i0].Time + time) / interval;
+			return;
+		}
+		else if (time > Keys[Keys.Count() - 1].Time) {
+			*i0 = Keys.Count() - 1;
+			*i1 = 0;
+			float interval = 1.0f - Keys[*i0].Time + Keys[*i1].Time;
+			*t = (time - Keys[*i0].Time) / interval;
+			return;
+		}
+	}
+	else {
+		WWASSERT(time >= Keys[0].Time);
+		WWASSERT(time <= Keys[Keys.Count()-1].Time);
+	}
+
+	int i=0;
+	while (time > Keys[i+1].Time) {
+		i++;
+	}
+	*i0 = i;
+	*i1 = i+1;
+	*t = (time - Keys[i].Time) / (Keys[i+1].Time - Keys[i].Time);
+}
+
+bool Curve1DClass::Save(ChunkSaveClass & csave)
+{
+	int keycount = Keys.Count();
+	csave.Begin_Chunk(CURVE1D_CHUNK_VARIABLES);
+	WRITE_MICRO_CHUNK(csave,CURVE1D_VARIABLE_ISLOOPING,IsLooping);
+	WRITE_MICRO_CHUNK(csave,CURVE1D_VARIABLE_KEYCOUNT,keycount);
+	csave.End_Chunk();
+
+	// Saving the keys, Note that if the format of a key changes we'll
+	// need a new chunk. (I didn't wrap each variable in its own chunk)
+	csave.Begin_Chunk(CURVE1D_CHUNK_KEYS);
+	for (int i=0; i<keycount; i++) {
+		csave.Write(&(Keys[i].Point),sizeof(Keys[i].Point));
+		csave.Write(&(Keys[i].Time),sizeof(Keys[i].Time));
+		csave.Write(&(Keys[i].Extra),sizeof(Keys[i].Extra));
+	}
+	csave.End_Chunk();
+	return true;
+}
+
+bool Curve1DClass::Load(ChunkLoadClass & cload)
+{
+	int i;
+	int keycount = 0;
+	KeyClass newkey;
+
+	// reset the curve
+	Keys.Delete_All();
+
+	// read in the chunks
+	while (cload.Open_Chunk()) {
+		
+		switch(cload.Cur_Chunk_ID()) 
+		{
+			case CURVE1D_CHUNK_VARIABLES:
+			
+				while (cload.Open_Micro_Chunk()) {
+					switch(cload.Cur_Micro_Chunk_ID()) {
+						READ_MICRO_CHUNK(cload,CURVE1D_VARIABLE_ISLOOPING,IsLooping);
+						READ_MICRO_CHUNK(cload,CURVE1D_VARIABLE_KEYCOUNT,keycount);
+					}
+					cload.Close_Micro_Chunk();	
+				}
+				break;
+
+			case CURVE1D_CHUNK_KEYS:
+				for (i=0; i<keycount; i++) {
+					cload.Read(&(newkey.Point),sizeof(newkey.Point));
+					cload.Read(&(newkey.Time),sizeof(newkey.Time));
+					cload.Read(&(newkey.Extra),sizeof(newkey.Extra));
+					Keys.Add(newkey);
+				}
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	return true;
+}
+
+/***********************************************************************************************
+**
+** LinearCurve1DClass, linearly interpolates the keys
+**
+***********************************************************************************************/
+void LinearCurve1DClass::Evaluate(float time,float * set_val)
+{
+	if (!IsLooping) {
+		if (time < Keys[0].Time) {
+			*set_val = Keys[0].Point;
+			return;
+		}
+
+		if (time >= Keys[Keys.Count() - 1].Time) {
+			*set_val = Keys[Keys.Count() - 1].Point;
+			return;
+		}
+	}
+
+	int i0,i1;
+	float t;
+	Find_Interval(time,&i0,&i1,&t);
+
+	*set_val = Keys[i0].Point + t * (Keys[i1].Point - Keys[i0].Point);
+}
+
+const PersistFactoryClass & LinearCurve1DClass::Get_Factory(void) const
+{
+	return _LinearCurve1DFactory;
+}
+
+bool LinearCurve1DClass::Save(ChunkSaveClass & csave)
+{
+	csave.Begin_Chunk(LINEARCURVE1D_CHUNK_CURVE1D);
+	Curve1DClass::Save(csave);
+	csave.End_Chunk();
+	return true;
+}
+
+bool LinearCurve1DClass::Load(ChunkLoadClass & cload)
+{
+	while (cload.Open_Chunk()) {
+		
+		switch(cload.Cur_Chunk_ID()) 
+		{
+			case LINEARCURVE1D_CHUNK_CURVE1D:
+				Curve1DClass::Load(cload);
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	return true;
+}
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/curve.h

@@ -0,0 +1,179 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /VSS_Sync/wwmath/curve.h                                    $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 6/13/01 2:18p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 8                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef CURVE_H
+#define CURVE_H
+
+#ifndef ALWAYS_H
+#include "always.h"
+#endif
+
+#ifndef VECTOR_H
+#include "vector.h"
+#endif
+
+#ifndef VECTOR3_H
+#include "vector3.h"
+#endif
+
+#ifndef PERSIST_H
+#include "persist.h"
+#endif
+
+class ChunkLoadClass;
+class ChunkSaveClass;
+
+
+class Curve3DClass : public PersistClass
+{
+public:
+
+	Curve3DClass(void);
+	Curve3DClass(const Curve3DClass & that);
+	virtual ~Curve3DClass(void);
+	Curve3DClass & operator = (const Curve3DClass & that);
+
+	virtual void		Evaluate(float time,Vector3 * set_val) = 0;
+	virtual bool		Is_Looping(void);
+	virtual void		Set_Looping(bool onoff);
+	virtual int			Key_Count(void);
+	virtual void		Get_Key(int i,Vector3 * set_point,float * set_t);
+	virtual void		Set_Key(int i,const Vector3 & point);
+	virtual int			Add_Key(const Vector3 & point,float t);
+	virtual void		Remove_Key(int i);
+	virtual void		Clear_Keys(void);
+	float					Get_Start_Time(void);
+	float					Get_End_Time(void);
+
+	// persistant object support
+	virtual bool		Save (ChunkSaveClass &csave);
+	virtual bool		Load (ChunkLoadClass &cload);
+
+protected:
+	
+	void					Find_Interval(float time,int * i0,int * i1,float * t);
+	
+	class KeyClass
+	{
+	public:
+		Vector3			Point;
+		float				Time;
+		bool operator == (const KeyClass & that) { return ((Point == that.Point) && (Time == that.Time)); }
+		bool operator != (const KeyClass & that) { return !KeyClass::operator==(that); }
+	};
+	
+	bool									IsLooping;
+	DynamicVectorClass<KeyClass>	Keys;
+};
+
+
+class LinearCurve3DClass : public Curve3DClass
+{
+public:
+	virtual void		Evaluate(float time,Vector3 * set_val);
+
+	// persistant object support
+	virtual const PersistFactoryClass &	Get_Factory(void) const;
+	virtual bool								Save(ChunkSaveClass &csave);
+	virtual bool								Load(ChunkLoadClass &cload);
+};
+
+
+/*
+** 1-Dimensional curve classes.
+*/
+class Curve1DClass : public PersistClass
+{
+public:
+
+	Curve1DClass(void);
+	Curve1DClass(const Curve1DClass & that);
+	virtual ~Curve1DClass(void);
+	Curve1DClass & operator = (const Curve1DClass & that);
+
+	virtual void		Evaluate(float time,float * set_val) = 0;
+	virtual bool		Is_Looping(void);
+	virtual void		Set_Looping(bool onoff);
+	virtual int			Key_Count(void);
+	virtual void		Get_Key(int i,float * set_point,float * set_t,unsigned int * extra=NULL);
+	virtual void		Set_Key(int i,float point,unsigned int extra=0);
+	virtual int			Add_Key(float point,float t,unsigned int extra=0);
+	virtual void		Remove_Key(int i);
+	virtual void		Clear_Keys(void);
+	float					Get_Start_Time(void);
+	float					Get_End_Time(void);
+
+	// persistant object support
+	virtual bool		Save (ChunkSaveClass &csave);
+	virtual bool		Load (ChunkLoadClass &cload);
+
+protected:
+	
+	void				Find_Interval(float time,int * i0,int * i1,float * t);
+	
+	class KeyClass
+	{
+	public:
+		float			Point;
+		float			Time;
+		unsigned int	Extra;
+		bool operator == (const KeyClass & that) { return ((Point == that.Point) && (Time == that.Time) && (Extra == that.Extra)); }
+		bool operator != (const KeyClass & that) { return !KeyClass::operator==(that); }
+	};
+
+	bool							IsLooping;
+	DynamicVectorClass<KeyClass>	Keys;
+};
+
+
+class LinearCurve1DClass : public Curve1DClass
+{
+public:
+	virtual void		Evaluate(float time,float * set_val);
+
+	// persistant object support
+	virtual const PersistFactoryClass &	Get_Factory(void) const;
+	virtual bool								Save(ChunkSaveClass &csave);
+	virtual bool								Load(ChunkLoadClass &cload);
+};
+
+
+#endif //CURVE_H

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/euler.cpp

@@ -0,0 +1,373 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /Commando/Code/wwmath/euler.cpp 5     4/27/01 11:51a Jani_p $ */
+/*********************************************************************************************** 
+ ***                            Confidential - Westwood Studios                              *** 
+ *********************************************************************************************** 
+ *                                                                                             * 
+ *                 Project Name : Commando / G Math Library                                    * 
+ *                                                                                             * 
+ *                     $Archive:: /Commando/Code/wwmath/euler.cpp                             $* 
+ *                                                                                             * 
+ *                       Author:: Greg_h                                                       * 
+ *                                                                                             * 
+ *                     $Modtime:: 4/23/01 6:08p                                               $* 
+ *                                                                                             * 
+ *                    $Revision:: 5                                                           $* 
+ *                                                                                             * 
+ *---------------------------------------------------------------------------------------------* 
+ * Functions:                                                                                  * 
+ *   EulerAnglesClass::EulerAnglesClass -- constructor                                         * 
+ *   EulerAnglesClass::Get_Angle -- returns angle 'i' of the euler angles                      * 
+ *   EulerAnglesClass::From_Matrix -- computes the equivalent euler angles for the given matrix* 
+ *   EulerAnglesClass::To_Matrix -- Builds a matrix from the given euler angles                * 
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "euler.h"	
+#include <float.h>
+
+
+/*********************************************************************
+
+	There are 24 possible conventions for Euler angles.  They can
+	be designated by:
+
+		EulerAxis		= Axis used initially
+		EulerParity		= parity of axis permutation (even = x,y,z)
+		EulerRepeat		= is last axis a repeat of the initial axis?
+		EulerFrame		= frame from which axes are taken (rotating or static)
+
+	For example, in this system an euler angle convention of:
+
+		Rotate_X(a0);
+		Rotate_Y(a1);
+		Rotate_Z(a2);
+
+	would be described as EulerOrderXYZr.
+
+*********************************************************************/
+
+#define EULER_FRAME_STATIC			0x00000000
+#define EULER_FRAME_ROTATING		0x00000001
+#define EULER_FRAME(order)			((unsigned)(order) & 1)
+
+#define EULER_REPEAT_NO				0x00000000
+#define EULER_REPEAT_YES			0x00000001
+#define EULER_REPEAT(order)		(((unsigned)(order) >> 1) & 1)
+
+#define EULER_PARITY_EVEN			0x00000000
+#define EULER_PARITY_ODD			0x00000001
+#define EULER_PARITY(order)		(((unsigned)(order) >> 2) & 1)
+
+#define EULER_BUILD_ORDER(i,p,r,f) (((((((i) << 1) + (p)) << 1) + (r)) << 1) + (f))
+
+
+/* static axes */
+int	EulerOrderXYZs = EULER_BUILD_ORDER(0, EULER_PARITY_EVEN, EULER_REPEAT_NO,  EULER_FRAME_STATIC);
+int	EulerOrderXYXs = EULER_BUILD_ORDER(0, EULER_PARITY_EVEN, EULER_REPEAT_YES, EULER_FRAME_STATIC);
+int	EulerOrderXZYs = EULER_BUILD_ORDER(0, EULER_PARITY_ODD,  EULER_REPEAT_NO,  EULER_FRAME_STATIC);
+int	EulerOrderXZXs = EULER_BUILD_ORDER(0, EULER_PARITY_ODD,  EULER_REPEAT_YES, EULER_FRAME_STATIC);
+int	EulerOrderYZXs = EULER_BUILD_ORDER(1, EULER_PARITY_EVEN, EULER_REPEAT_NO,  EULER_FRAME_STATIC);
+int	EulerOrderYZYs = EULER_BUILD_ORDER(1, EULER_PARITY_EVEN, EULER_REPEAT_YES, EULER_FRAME_STATIC);
+int	EulerOrderYXZs = EULER_BUILD_ORDER(1, EULER_PARITY_ODD,  EULER_REPEAT_NO,  EULER_FRAME_STATIC);
+int	EulerOrderYXYs = EULER_BUILD_ORDER(1, EULER_PARITY_ODD,  EULER_REPEAT_YES, EULER_FRAME_STATIC);
+int	EulerOrderZXYs = EULER_BUILD_ORDER(2, EULER_PARITY_EVEN, EULER_REPEAT_NO,  EULER_FRAME_STATIC);
+int	EulerOrderZXZs = EULER_BUILD_ORDER(2, EULER_PARITY_EVEN, EULER_REPEAT_YES, EULER_FRAME_STATIC);
+int	EulerOrderZYXs = EULER_BUILD_ORDER(2, EULER_PARITY_ODD,  EULER_REPEAT_NO,  EULER_FRAME_STATIC);
+int	EulerOrderZYZs = EULER_BUILD_ORDER(2, EULER_PARITY_ODD,  EULER_REPEAT_YES, EULER_FRAME_STATIC);
+
+/* rotating axes */
+int	EulerOrderZYXr = EULER_BUILD_ORDER(0, EULER_PARITY_EVEN, EULER_REPEAT_NO,  EULER_FRAME_ROTATING);
+int	EulerOrderXYXr = EULER_BUILD_ORDER(0, EULER_PARITY_EVEN, EULER_REPEAT_YES, EULER_FRAME_ROTATING);
+int	EulerOrderYZXr = EULER_BUILD_ORDER(0, EULER_PARITY_ODD,  EULER_REPEAT_NO,  EULER_FRAME_ROTATING);
+int	EulerOrderXZXr = EULER_BUILD_ORDER(0, EULER_PARITY_ODD,  EULER_REPEAT_YES, EULER_FRAME_ROTATING);
+int	EulerOrderXZYr = EULER_BUILD_ORDER(1, EULER_PARITY_EVEN, EULER_REPEAT_NO,  EULER_FRAME_ROTATING);
+int	EulerOrderYZYr = EULER_BUILD_ORDER(1, EULER_PARITY_EVEN, EULER_REPEAT_YES, EULER_FRAME_ROTATING);
+int	EulerOrderZXYr = EULER_BUILD_ORDER(1, EULER_PARITY_ODD,  EULER_REPEAT_NO,  EULER_FRAME_ROTATING);
+int	EulerOrderYXYr = EULER_BUILD_ORDER(1, EULER_PARITY_ODD,  EULER_REPEAT_YES, EULER_FRAME_ROTATING);
+int	EulerOrderYXZr = EULER_BUILD_ORDER(2, EULER_PARITY_EVEN, EULER_REPEAT_NO,  EULER_FRAME_ROTATING);
+int	EulerOrderZXZr = EULER_BUILD_ORDER(2, EULER_PARITY_EVEN, EULER_REPEAT_YES, EULER_FRAME_ROTATING);
+int	EulerOrderXYZr = EULER_BUILD_ORDER(2, EULER_PARITY_ODD,  EULER_REPEAT_NO,  EULER_FRAME_ROTATING);
+int	EulerOrderZYZr = EULER_BUILD_ORDER(2, EULER_PARITY_ODD,  EULER_REPEAT_YES, EULER_FRAME_ROTATING);
+
+
+#define EULER_SAFE					"\000\001\002\000"
+#define EULER_NEXT					"\001\002\000\001"
+
+#define EULER_AXIS_I(order)		((int)(EULER_SAFE[(((unsigned)(ord)>>3) & 3)]))
+#define EULER_AXIS_J(order)		((int)(EULER_NEXT[EULER_AXIS_I(order) + (EULER_PARITY(order) == EULER_PARITY_ODD)]))
+#define EULER_AXIS_K(order)		((int)(EULER_NEXT[EULER_AXIS_I(order) + (EULER_PARITY(order) != EULER_PARITY_ODD)]))
+#define EULER_AXIS_H(order)		((EULER_REPEAT(order) == EULER_REPEAT_NO) ? EULER_AXIS_K(order) : EULER_AXIS_I(order))
+
+
+
+/* local functions */
+static void _euler_unpack_order(int order,int &i,int &j,int &k,int &h,int &n,int &s,int &f);
+static int _euler_axis_i(int order);
+static int _euler_axis_j(int order);
+static int _euler_axis_k(int order);
+static int _euler_axis_h(int order);
+
+
+/*********************************************************************************************** 
+ * EulerAnglesClass::EulerAnglesClass -- constructor                                           * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   08/11/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+EulerAnglesClass::EulerAnglesClass(const Matrix3D & M,int order)
+{
+	this->From_Matrix(M,order);
+}
+
+/*********************************************************************************************** 
+ * EulerAnglesClass::Get_Angle -- returns angle 'i' of the euler angles                        * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   08/11/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+double EulerAnglesClass::Get_Angle(int i)
+{
+	return Angle[i];		
+}
+
+/*********************************************************************************************** 
+ * EulerAnglesClass::From_Matrix -- computes the equivalent euler angles for the given matrix  * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   08/11/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+void EulerAnglesClass::From_Matrix(const Matrix3D & M, int order)
+{
+	int i,j,k,h,n,s,f;
+
+	Order = order;
+	_euler_unpack_order(order,i,j,k,h,n,s,f);
+
+	if (s == EULER_REPEAT_YES) {
+		double sy = sqrt(M[i][j]*M[i][j] + M[i][k]*M[i][k]);
+
+		if (sy > 16*FLT_EPSILON) {
+
+			Angle[0] = WWMath::Atan2(M[i][j],M[i][k]);
+			Angle[1] = WWMath::Atan2(sy,M[i][i]);
+			Angle[2] = WWMath::Atan2(M[j][i],-M[k][i]);
+
+		} else {
+
+			Angle[0] = WWMath::Atan2(-M[j][k],M[j][j]);
+			Angle[1] = WWMath::Atan2(sy,M[i][i]);
+			Angle[2] = 0.0;
+		}
+
+	} else {
+
+		double cy = sqrt(M[i][i]*M[i][i] + M[j][i]*M[j][i]);
+
+		if (cy > 16*FLT_EPSILON) {
+
+			Angle[0] = WWMath::Atan2(M[k][j],M[k][k]);
+			Angle[1] = WWMath::Atan2(-M[k][i],cy);
+			Angle[2] = WWMath::Atan2(M[j][i],M[i][i]);
+
+		} else {
+
+			Angle[0] = WWMath::Atan2(-M[j][k],M[j][j]);
+			Angle[1] = WWMath::Atan2(-M[k][i],cy);
+			Angle[2] = 0;
+		}
+	}
+
+	if (n==EULER_PARITY_ODD) { Angle[0] = -Angle[0]; Angle[1] = -Angle[1]; Angle[2] = -Angle[2]; }
+	if (f==EULER_FRAME_ROTATING) { double t = Angle[0]; Angle[0] = Angle[2]; Angle[2] = t; }
+
+	// Trying to "clean" up the eulers, special cased for XYZr
+	if (order == EulerOrderXYZr) {
+
+		const double PI = 3.141592654;
+
+		double x2 = PI + Angle[0];
+		double y2 = PI - Angle[1];
+		double z2 = PI + Angle[2];
+				
+		if (x2 > PI) {
+			x2 = x2 - 2*PI;
+		}
+
+		if (y2 > PI) {
+			y2 = y2 - 2*PI;
+		}
+
+		if (z2 > PI) {
+			z2 = z2 - 2*PI;
+		}
+
+		double mag0 = Angle[0]*Angle[0] + Angle[1]*Angle[1] + Angle[2]*Angle[2];
+		double mag1 = x2*x2 + y2*y2 + z2*z2;
+
+		if (mag1 < mag0) {
+			Angle[0] = x2;
+			Angle[1] = y2;
+			Angle[2] = z2;
+		}
+	}
+}
+
+
+
+/*********************************************************************************************** 
+ * EulerAnglesClass::To_Matrix -- Builds a matrix from the given euler angles                  * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   08/11/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+void EulerAnglesClass::To_Matrix(Matrix3D & M)
+{
+	M.Make_Identity();
+
+	double a0,a1,a2;
+	double ti,tj,th,ci,cj,ch,si,sj,sh,cc,cs,sc,ss;
+	int i,j,k,h,n,s,f;
+
+	a0 = Angle[0];
+	a1 = Angle[1];
+	a2 = Angle[2];
+
+	_euler_unpack_order(Order,i,j,k,h,n,s,f);
+	if (f == EULER_FRAME_ROTATING) { 
+		double t = a0; a0 = a2; a2 = t; 
+	}
+	
+	if (n == EULER_PARITY_ODD) { 
+		a0 = -a0; a1 = -a1; a2 = -a2; 
+	}
+
+	ti = a0;				tj = a1;				th = a2;
+	ci = WWMath::Cos(ti);		cj = WWMath::Cos(tj);		ch = WWMath::Cos(th);
+	si = WWMath::Sin(ti);		sj = WWMath::Sin(tj);		sh = WWMath::Sin(th);
+
+	cc = ci*ch;
+	cs = ci*sh;
+	sc = si*ch;
+	ss = si*sh;
+
+	if (s == EULER_REPEAT_YES) {
+
+		M[i][i] = (float)(cj);			M[i][j] = (float)(sj*si);			M[i][k] = (float)(sj*ci);
+		M[j][i] = (float)(sj*sh);		M[j][j] = (float)(-cj*ss+cc);		M[j][k] = (float)(-cj*cs-sc);
+		M[k][i] = (float)(-sj*ch);		M[k][j] = (float)(cj*sc+cs);		M[k][k] = (float)(cj*cc-ss);
+
+	} else {
+
+		M[i][i] = (float)(cj*ch);		M[i][j] = (float)(sj*sc-cs);		M[i][k] = (float)(sj*cc+ss);
+		M[j][i] = (float)(cj*sh);		M[j][j] = (float)(sj*ss+cc);		M[j][k] = (float)(sj*cs-sc);
+		M[k][i] = (float)(-sj);			M[k][j] = (float)(cj*si);			M[k][k] = (float)(cj*ci);
+
+	}
+}
+
+
+/*
+** Local functions
+*/
+
+static int _euler_safe[] = { 0,1,2,0 };
+static int _euler_next[] = { 1,2,0,1 };
+
+int _euler_axis_i(int order)
+{
+	return _euler_safe[ (order>>3) & 3 ];
+}
+
+int _euler_axis_j(int order)
+{
+	int index = _euler_axis_i(order);
+	if (EULER_PARITY(order) == 1) {
+		index++;
+	}
+
+	return _euler_next[ index ];
+}
+
+int _euler_axis_k(int order)
+{
+	int index = _euler_axis_i(order);
+	if (EULER_PARITY(order) != 1) {
+		index++;
+	}
+
+	return _euler_next[ index ];
+}
+
+int _euler_axis_h(int order)
+{
+	if (EULER_REPEAT(order) == 1) {
+		return _euler_axis_k(order);
+	} else {
+		return _euler_axis_i(order);
+	}
+}
+
+void _euler_unpack_order(int order,int &i,int &j,int &k,int &h,int &n,int &s,int &f)
+{
+	
+	f = order & 1;
+	order >>= 1;
+
+	s = order & 1;
+	order >>= 1;
+
+	n = order & 1;
+	order >>= 1;
+
+	i = _euler_safe[order & 3];
+	j = _euler_next[i+n];
+	k = _euler_next[i+1-n];
+	h = (s ? k : i);
+}
+
+
+
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/euler.h

@@ -0,0 +1,127 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /Commando/Code/wwmath/euler.h 5     5/05/01 5:48p Jani_p $ */
+/*********************************************************************************************** 
+ ***                            Confidential - Westwood Studios                              *** 
+ *********************************************************************************************** 
+ *                                                                                             * 
+ *                 Project Name : Commando / G Math Library                                    * 
+ *                                                                                             * 
+ *                     $Archive:: /Commando/Code/wwmath/euler.h                               $* 
+ *                                                                                             * 
+ *                       Author:: Greg_h                                                       * 
+ *                                                                                             * 
+ *                     $Modtime:: 5/04/01 8:37p                                               $* 
+ *                                                                                             * 
+ *                    $Revision:: 5                                                           $* 
+ *                                                                                             * 
+ *---------------------------------------------------------------------------------------------* 
+ * Functions:                                                                                  * 
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef EULER_H
+#define EULER_H
+
+#include "always.h"
+#include "matrix3d.h"
+#include "quat.h"
+
+
+/*********************************************************************
+
+	Euler Order Types 
+
+	When creating an EulerAngles object, use one of the below
+	constants to describe the axis convention.
+
+	XYZ - order of the axes
+	s/r - whether the rotations are applied to a static or 
+	      rotating frame.
+
+*********************************************************************/
+
+
+/* static axes */
+extern int	EulerOrderXYZs;
+extern int	EulerOrderXYXs;
+extern int	EulerOrderXZYs;
+extern int	EulerOrderXZXs;
+extern int	EulerOrderYZXs;
+extern int	EulerOrderYZYs;
+extern int	EulerOrderYXZs;
+extern int	EulerOrderYXYs;
+extern int	EulerOrderZXYs;
+extern int	EulerOrderZXZs;
+extern int	EulerOrderZYXs;
+extern int	EulerOrderZYZs;
+
+/* rotating axes */
+extern int	EulerOrderXYZr;
+extern int	EulerOrderXYXr;
+extern int	EulerOrderXZYr;
+extern int	EulerOrderXZXr;
+extern int	EulerOrderYZXr;
+extern int	EulerOrderYZYr;
+extern int	EulerOrderYXZr;
+extern int	EulerOrderYXYr;
+extern int	EulerOrderZXYr;
+extern int	EulerOrderZXZr;
+extern int	EulerOrderZYXr;
+extern int	EulerOrderZYZr;
+
+
+/*********************************************************************
+	
+	EulerAnglesClass
+
+	The purpose for this class is mainly for conversion.  You can
+	choose a convention for the order of your rotations and then
+	convert matrices into a set of euler angles.  You don't really
+	want to use this at run-time to convert matrices into angles.
+
+	The guts of this implementation is based on the article in Graphics 
+	Gems IV by Ken Shoemake.  The original article is on page 222.
+	
+*********************************************************************/
+class EulerAnglesClass
+{
+
+public:
+
+	EulerAnglesClass(void) : Order(0) { Angle[0] = 0.0; Angle[1] = 0.0; Angle[2] = 0.0; };
+	EulerAnglesClass(const Matrix3D & from,int order);
+	void		From_Matrix(const Matrix3D & from,int order);
+	void		To_Matrix(Matrix3D & M);
+
+	double	Get_Angle(int i);
+
+private:
+
+	double	Angle[3];
+	int		Order;
+
+};
+
+
+#endif /*EULER_H*/

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/frustum.cpp

@@ -0,0 +1,168 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/frustum.cpp                           $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 4/01/01 12:47p                                              $*
+ *                                                                                             *
+ *                    $Revision:: 5                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   FrustumClass::Init -- Initialize a frustum object                                         *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "frustum.h"
+
+
+/***********************************************************************************************
+ * FrustumClass::Init -- Initialize a frustum object                                           *
+ *                                                                                             *
+ *    This function initializes a frustum from the description of a camera                     *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ * camera - camera transform, note that the camera looks down the -Z axis                      *
+ * vpmin - min corner of the z=-1.0 view plane (not necessarily the near clip plane)           *
+ * vpmax - max corner of the z=-1.0 view plane (not necessarily the near clip plane)           *
+ * znear - near clip plane (should be negative, negated if it is not)                          *
+ * zfar - far clip plane (should be negative, negated if it is not)                            *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ * The vpmin and vpmax variables are the min and max of a view-plane at z=-1.0                 *
+ *                                                                                             *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/17/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+void FrustumClass::Init
+( 
+	const Matrix3D &		camera,
+	const Vector2 &		vpmin,
+	const Vector2 &		vpmax,
+	float						znear,
+	float						zfar
+)
+{
+	int i;
+	
+	// Store the camera transform
+	CameraTransform = camera;
+
+   // Forward is negative Z in our viewspace coordinate system.
+	// Just flip the sign if the user passed in positive values.
+   if ((znear > 0.0f) && (zfar > 0.0f)) {
+		znear = -znear;
+		zfar = -zfar;
+	}
+
+	// Calculate the corners of the camera frustum.
+	// Generate the camera-space frustum corners by linearly
+   // extrapolating the viewplane to the near and far z clipping planes.
+
+	// The camera frustum corners are defined in the following order:
+	// When looking at the frustum from the position of the camera, the near four corners are
+	// numbered: upper left 0, upper right 1, lower left 2, lower right 3. The far plane's
+	// Frustum corners are numbered from 4 to 7 in an analogous fashion.
+  // (remember: the camera space has x going to the right, y up and z backwards).
+
+	//calculate a proper z-vector assuming our right-handed coordinate system
+	Vector3	zv;
+	Vector3::Cross_Product(CameraTransform.Get_X_Vector(),CameraTransform.Get_Y_Vector(),&zv);
+
+	//compare correct z-vector with the one in the camera matrix.  If they point in
+	//opposite directions, we have a reflected camera matrix.
+	if (Vector3::Dot_Product(CameraTransform.Get_Z_Vector(),zv) < 0)
+	{	//flip the frustum corners horizontally for a reflected matrix
+	  Corners[1].Set(vpmin.X, vpmax.Y, 1.0);
+	  Corners[5] = Corners[1];
+		Corners[1] *= znear;
+		Corners[5] *= zfar;
+		Corners[0].Set(vpmax.X, vpmax.Y, 1.0);
+		Corners[4] = Corners[0];
+		Corners[0] *= znear;
+		Corners[4] *= zfar;
+		Corners[3].Set(vpmin.X, vpmin.Y, 1.0);
+		Corners[7] = Corners[3];
+		Corners[3] *= znear;
+		Corners[7] *= zfar;
+		Corners[2].Set(vpmax.X, vpmin.Y, 1.0);
+		Corners[6] = Corners[2];
+		Corners[2] *= znear;
+		Corners[6] *= zfar; 
+	}
+	else
+	{	//normal camera
+		Corners[0].Set(vpmin.X, vpmax.Y, 1.0);
+		Corners[4] = Corners[0];
+		Corners[0] *= znear;
+		Corners[4] *= zfar;
+		Corners[1].Set(vpmax.X, vpmax.Y, 1.0);
+		Corners[5] = Corners[1];
+		Corners[1] *= znear;
+		Corners[5] *= zfar;
+		Corners[2].Set(vpmin.X, vpmin.Y, 1.0);
+		Corners[6] = Corners[2];
+		Corners[2] *= znear;
+		Corners[6] *= zfar;
+		Corners[3].Set(vpmax.X, vpmin.Y, 1.0);
+		Corners[7] = Corners[3];
+		Corners[3] *= znear;
+		Corners[7] *= zfar; 
+	}
+
+
+	// Transform the eight corners of the view frustum from camera space to world space.
+	for (i = 0; i < 8; i++) {
+		Matrix3D::Transform_Vector(CameraTransform, Corners[i], &(Corners[i]));
+	}
+
+	// Create the six frustum bounding planes from the eight corner Corners.
+	// The bounding planes are oriented so that their normals point outward
+	PlaneClass frustum_planes[6];
+	Planes[0].Set(Corners[0], Corners[3], Corners[1]);	// near
+	Planes[1].Set(Corners[0], Corners[5], Corners[4]);	// bottom
+	Planes[2].Set(Corners[0], Corners[6], Corners[2]); // right
+	Planes[3].Set(Corners[2], Corners[7], Corners[3]); // top
+	Planes[4].Set(Corners[1], Corners[7], Corners[5]); // left
+	Planes[5].Set(Corners[4], Corners[7], Corners[6]); // far
+
+	// find the bounding box of the entire frustum (may be used for sloppy quick rejection)
+	BoundMin = BoundMax = Corners[0];
+
+	for (i=1; i<8;i++) {
+		if (Corners[i].X < BoundMin.X) BoundMin.X = Corners[i].X;
+		if (Corners[i].X > BoundMax.X) BoundMax.X = Corners[i].X;
+
+		if (Corners[i].Y < BoundMin.Y) BoundMin.Y = Corners[i].Y;
+		if (Corners[i].Y > BoundMax.Y) BoundMax.Y = Corners[i].Y;
+
+		if (Corners[i].Z < BoundMin.Z) BoundMin.Z = Corners[i].Z;
+		if (Corners[i].Z > BoundMax.Z) BoundMax.Z = Corners[i].Z;
+	}
+}
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/frustum.h

@@ -0,0 +1,73 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/frustum.h                             $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 3/29/00 10:20a                                              $*
+ *                                                                                             *
+ *                    $Revision:: 3                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef FRUSTUM_H
+#define FRUSTUM_H
+
+#include "vector3.h"
+#include "plane.h"
+
+
+class FrustumClass
+{
+public:
+	void Init(			const Matrix3D & camera,
+							const Vector2 & viewport_min,
+							const Vector2 & viewport_max,
+							float znear,
+							float zfar );
+
+	const Vector3 &	Get_Bound_Min(void) const		{ return BoundMin; }
+	const Vector3 &	Get_Bound_Max(void) const		{ return BoundMax; }
+
+public:
+
+	Matrix3D				CameraTransform;
+	PlaneClass			Planes[6];
+	Vector3				Corners[8];
+	Vector3				BoundMin;
+	Vector3				BoundMax;
+};
+
+
+
+#endif
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/gridcull.h

@@ -0,0 +1,706 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/gridcull.h                            $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 5/10/01 10:42a                                              $*
+ *                                                                                             *
+ *                    $Revision:: 14                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   GridCullSystemClass::clamp_indices_to_grid -- constrains indices to be a valid location   *
+ *   GridCullSystemClass::map_point_to_cell -- determines which cell  the point is in          *
+ *   GridCullSystemClass::map_point_to_address -- determines the address of a point in the gri *
+ *   GridCullSystemClass::map_indices_to_address -- computes the address for given index tripl *
+ *   GridCullSystemClass::total_cell_count -- returns the total number of cells in the grid    *
+ *   GridCullSystemClass::compute_box -- computes the bounding box for a grid cell             *
+ *   GridCullSystemClass::compute_box -- computes bounding box for a range of grid cells       *
+ *   GridCullSystemClass::init_volume -- inits volume to contain the given range               *
+ *   GridCullSystemClass::init_volume -- inits volume to contain the given line segment        *
+ *   GridCullSystemClass::init_volume -- inits volume to contain the given box                 *
+ *   GridCullSystemClass::init_volume -- inits volume to contain the given oriented box        *
+ *   GridCullSystemClass::init_volume -- inits volume to contain the given frustum             *
+ *   GridCullSystemClass::VolumeStruct::VolumeStruct -- constructor                            *
+ *   GridCullSystemClass::VolumeStruct::VolumeStruct -- constructor                            *
+ *   GridCullSystemClass::VolumeStruct::Is_Leaf -- check if volume is a leaf                   *
+ *   GridCullSystemClass::VolumeStruct::Is_Empty -- check if volume is empty (or invalid)      *
+ *   GridCullSystemClass::VolumeStruct::Split -- split this volume                             *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include "cullsys.h"
+#include "mempool.h"
+#include "frustum.h"
+#include "aabox.h"
+#include "lineseg.h"
+#include "obbox.h"
+#include <string.h>
+
+class ChunkLoadClass;
+class ChunkSaveClass;
+
+/*
+** GridCullSystemClass
+** This is a culling system designed for dynamic objects (objects which are moving or
+** changing bounding box size).  It features O(1) insertion as opposed to
+** the AABTree, QuadTree, or Octree insertion times which are O(logn).  It's disadvantages
+** compared to the above mentioned systems are that it must uniformly divide space.  The
+** AABTree conforms to the geometry placed in it and can therefore cull things more
+** efficiently.  In actual use, this system is like an AAB-tree which is uniformly subdivided,
+** its just that we can jump straight to the leaves of the tree for insertion...  
+**
+** The bounding volume for each grid cell is considered to be the volume of the cell, expanded
+** by the maximum object size.  Inserting an object into the grid is a matter of determining
+** which cell its center point is in.  Objects which are larger than the maximum size are
+** allowed but they are simply put into a linked list which is iterated with each call to
+** the culling system (linearly culled rather than logarithmic...)
+*/
+class GridCullSystemClass : public CullSystemClass
+{
+
+public:
+
+	GridCullSystemClass(void);
+	~GridCullSystemClass(void);
+	
+	virtual void		Collect_Objects(const Vector3 & point);
+	virtual void		Collect_Objects(const AABoxClass & box);
+	virtual void		Collect_Objects(const OBBoxClass & box);
+	virtual void		Collect_Objects(const FrustumClass & frustum);
+	
+	virtual void		Re_Partition(const Vector3 & min,const Vector3 & max,float objdim);
+	virtual void		Update_Culling(CullableClass * obj);
+
+	virtual void		Load(ChunkLoadClass & cload);
+	virtual void		Save(ChunkSaveClass & csave);
+
+	virtual int			Get_Object_Count (void) const { return ObjCount; }
+
+	/*
+	** Statistics
+	*/
+	struct StatsStruct
+	{
+		int				NodeCount;
+		int				NodesAccepted;
+		int				NodesTriviallyAccepted;
+		int				NodesRejected;
+	};
+
+	void					Reset_Statistics(void);
+	const StatsStruct & Get_Statistics(void);
+
+	void					Get_Min_Cell_Size (Vector3 &size) const	{ size = MinCellSize; }
+	void					Set_Min_Cell_Size (const Vector3 &size)	{ MinCellSize = size; }
+
+	int					Get_Termination_Count (void) const	{ return TerminationCellCount; }
+	void					Set_Termination_Count (int count)	{ TerminationCellCount = count; }
+
+protected:
+
+	void					Collect_And_Unlink_All(void);
+	void					Add_Object_Internal(CullableClass * obj);
+	void					Remove_Object_Internal(CullableClass * obj);
+
+	enum 
+	{
+		TERMINATION_CELL_COUNT	= 16384,			// algorithm terminates if we ever have more than this many cells.
+		UNGRIDDED_ADDRESS			= 0xFFFFFFFF	// address given to objs that didn't fit in grid
+	};
+
+	// Constants which control the division of space:
+	Vector3				MinCellSize;			// min dimensions for a cell (don't go below this...)
+	float					MaxObjExtent;			// max extent/radius (objects bigger than this are just put in a list)
+	int					TerminationCellCount;
+
+	// Constants that define the division of space
+	Vector3				Origin;
+	Vector3				CellDim;
+	Vector3				OOCellDim;
+	int					CellCount[3];
+
+	//	3D array of pointers to objects in each cell
+	CullableClass **	Cells;	
+
+	// list of objs that were outside or too big for the grid.
+	CullableClass *	NoGridList;
+
+	// number of objects in the system
+	int					ObjCount;
+
+	// statistics 
+	StatsStruct				Stats;
+
+	// Structure used to define a volume in the grid.  The volume spans from the cell indexed
+	// by Min[0],Min[1],Min[2] to the cell indexed by Max[0]-1,Max[1]-1,Max[2]-1.
+	struct VolumeStruct
+	{
+		VolumeStruct(void);
+		VolumeStruct(int i0,int j0,int k0,int i1,int j1,int k1);
+		bool Is_Leaf(void) const;
+		bool Is_Empty(void) const;
+		void Split(VolumeStruct & v0,VolumeStruct & v1) const;
+
+		int Min[3];
+		int Max[3];
+	};
+
+	void					link_object(CullableClass * obj);
+	void					link_object(CullableClass * obj,int address);
+	void					unlink_object(CullableClass * obj);
+	void					link_object_to_list(CullableClass ** head,CullableClass * obj);
+	void					unlink_object_from_list(CullableClass ** head,CullableClass * obj);
+
+	bool					map_point_to_cell(const Vector3 & pt,int & set_i,int & set_j,int & set_k);
+	bool					map_point_to_address(const Vector3 & pt,int & set_address);
+	WWINLINE int			map_indices_to_address(int i,int j,int k);
+	void					clamp_indices_to_grid(int * i,int * j,int * k);
+
+	int					total_cell_count(void);
+	void					compute_box(int i,int j,int k,AABoxClass * set_box);
+	void					compute_box(const VolumeStruct & area, AABoxClass * set_box);
+
+	void					init_volume(const Vector3 & bound_min,const Vector3 & bound_max,VolumeStruct * set_volume);
+	void					init_volume(const Vector3 & point,VolumeStruct * set_volume);
+	void					init_volume(const LineSegClass & line,VolumeStruct * set_volume);
+	void					init_volume(const AABoxClass & box,VolumeStruct * set_volume);
+	void					init_volume(const OBBoxClass & box,VolumeStruct * set_volume);
+	void					init_volume(const FrustumClass & frustum,VolumeStruct * set_volume);
+	
+	void					collect_objects_in_leaf(const Vector3 & point,CullableClass * head);
+	void					collect_objects_in_leaf(const AABoxClass & aabox,CullableClass * head);
+	void					collect_objects_in_leaf(const OBBoxClass & obbox,CullableClass * head);
+	void					collect_objects_in_leaf(const FrustumClass & frustum,CullableClass * head);
+};
+
+/*
+** Macros for gathering statistics.  Placed here in the header file so that
+** derived classes can use them as well.
+*/
+#ifdef WWDEBUG
+
+#define GRIDCULL_NODE_ACCEPTED						Stats.NodesAccepted ++;
+#define GRIDCULL_NODE_TRIVIALLY_ACCEPTED			Stats.NodesTriviallyAccepted ++;
+#define GRIDCULL_NODE_REJECTED						Stats.NodesRejected ++;
+
+#else
+
+#define GRIDCULL_NODE_ACCEPTED						
+#define GRIDCULL_NODE_TRIVIALLY_ACCEPTED		
+#define GRIDCULL_NODE_REJECTED						
+
+#endif
+
+
+/*
+** TypedGridCullSystemClass
+** This class simply enforces that a certain type of object is inserted into the grid cull system.
+** It exposes the add, remove, and collection iterating functions and is intended to be the class
+** actually used by the end user.
+*/
+template <class T> class TypedGridCullSystemClass : public GridCullSystemClass
+{
+public:
+
+	virtual void		Add_Object(T * obj)						{ Add_Object_Internal(obj); }
+	virtual void		Remove_Object(T * obj)					{ Remove_Object_Internal(obj); }
+
+	T *					Get_First_Collected_Object(void)		{ return (T*)Get_First_Collected_Object_Internal(); }
+	T *					Get_Next_Collected_Object(T * obj)	{ return (T*)Get_Next_Collected_Object_Internal(obj); }
+
+};
+
+
+/*
+** GridLinkClass
+** This structure is used to link cullable objects into a Grid culling system
+** This class is should only be used by classes which derive from GridCullSystemClass
+** not normal users.
+*/
+class GridLinkClass : public CullLinkClass, public AutoPoolClass<GridLinkClass,256>
+{
+public:
+	GridLinkClass(GridCullSystemClass * system);
+	virtual ~GridLinkClass(void);
+	
+	int									GridAddress;		// address in the grid.
+	CullableClass *					Prev;					// prev object in this cell
+	CullableClass *					Next;					// next object in this cell
+};
+
+
+/*
+** GridListIterator
+** This is just a simple iterator that contains the code for traversing the
+** list of objects either in a cell in the grid or in the NoGridList...
+** This class should only be used by classes which derive from GridCullSystemClass
+** not normal users.
+*/
+class GridListIterator
+{
+public:
+
+	GridListIterator(CullableClass * head)		{ First(head); }
+
+	void			First(CullableClass * head)	{ Head = head; CurObj = head; }
+	void			First(void)							{ CurObj = Head; }
+	void			Next(void)							{ if (CurObj) { CurObj = ((GridLinkClass *)CurObj->Get_Cull_Link())->Next; } }
+	void			Prev(void)							{ if (CurObj) { CurObj = ((GridLinkClass *)CurObj->Get_Cull_Link())->Prev; } }
+	bool			Is_Done(void)						{ return (CurObj == NULL); }
+
+	CullableClass *	Get_Obj(void)				{ if (CurObj) { CurObj->Add_Ref(); } return CurObj; }
+	CullableClass *	Peek_Obj(void)				{ return CurObj; }
+
+private:
+
+	CullableClass *	Head;				// head of the list we're working in
+	CullableClass *	CurObj;			// node we're currently at.
+
+};
+
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::clamp_indices_to_grid -- constrains indices to be a valid location     *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void GridCullSystemClass::clamp_indices_to_grid(int * i,int * j,int * k)
+{
+	if (*i < 0) *i = 0;
+	if (*i >= CellCount[0]) *i = CellCount[0] - 1;
+	if (*j < 0) *j = 0;
+	if (*j >= CellCount[1]) *j = CellCount[1] - 1;
+	if (*k < 0) *k = 0;
+	if (*k >= CellCount[2]) *k = CellCount[2] - 1;
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::map_point_to_cell -- determines which cell  the point is in            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE bool GridCullSystemClass::map_point_to_cell(const Vector3 & pt,int & set_i,int & set_j,int & set_k)
+{
+	Vector3 dp = pt - Origin;
+	set_i = floor(dp.X * OOCellDim.X);
+	set_j = floor(dp.Y * OOCellDim.Y);
+	set_k = floor(dp.Z * OOCellDim.Z);
+
+	if (	(set_i >= 0) && (set_j >= 0) && (set_k >= 0) && 
+			(set_i < CellCount[0]) && (set_j < CellCount[1]) && (set_k < CellCount[2])	) 
+	{
+		return true;
+	}
+	return false;
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::map_point_to_address -- determines the address of a point in the grid  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE bool GridCullSystemClass::map_point_to_address(const Vector3 & pt,int &set_address)
+{
+	int i,j,k;
+	bool res = map_point_to_cell(pt,i,j,k);
+	
+	if (res) {
+		set_address = map_indices_to_address(i,j,k);
+		return true;
+	} else {
+		set_address = UNGRIDDED_ADDRESS;
+		return false;
+	}
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::map_indices_to_address -- computes the address for given index triplet *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE int GridCullSystemClass::map_indices_to_address(int i,int j,int k)
+{
+	return i + j*CellCount[0] + k*CellCount[0]*CellCount[1];
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::total_cell_count -- returns the total number of cells in the grid      *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE int GridCullSystemClass::total_cell_count(void)
+{
+	return CellCount[0] * CellCount[1] * CellCount[2];
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::compute_box -- computes the bounding box for a grid cell               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void	GridCullSystemClass::compute_box(int i,int j,int k,AABoxClass * set_box)
+{
+	WWASSERT(set_box != NULL);
+	WWASSERT((i >= 0) && (j >= 0) && (k >= 0));
+	WWASSERT((i < CellCount[0]) && (j < CellCount[1]) && (k < CellCount[2]));
+
+	Vector3 min,max;
+
+	min.X = Origin.X + i * CellDim.X - MaxObjExtent;
+	min.Y = Origin.Y + j * CellDim.Y - MaxObjExtent;
+	min.Z = Origin.Z + k * CellDim.Z - MaxObjExtent;
+
+	max.X = min.X + CellDim.X + 2.0f*MaxObjExtent;
+	max.Y = min.Y + CellDim.Y + 2.0f*MaxObjExtent;
+	max.Z = min.Z + CellDim.Z + 2.0f*MaxObjExtent;
+
+	set_box->Init((min+max)*0.5f, (min-max)*0.5f);
+}	
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::compute_box -- computes bounding box for a range of grid cells         *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void	GridCullSystemClass::compute_box(const GridCullSystemClass::VolumeStruct & vol, AABoxClass * set_box)
+{
+	WWASSERT(set_box != NULL);
+	WWASSERT((vol.Min[0] >= 0) && (vol.Min[1] >= 0) && (vol.Min[2] >= 0));
+	WWASSERT((vol.Max[0] <= CellCount[0]) && (vol.Max[1] <= CellCount[1]) && (vol.Max[2] <= CellCount[2]));
+
+	Vector3 min,max;
+
+	min.X = Origin.X + vol.Min[0] * CellDim.X - MaxObjExtent;
+	min.Y = Origin.Y + vol.Min[1] * CellDim.Y - MaxObjExtent;
+	min.Z = Origin.Z + vol.Min[2] * CellDim.Z - MaxObjExtent;
+
+	max.X = Origin.X + vol.Max[0] * CellDim.X + MaxObjExtent;
+	max.Y = Origin.Y + vol.Max[1] * CellDim.Y + MaxObjExtent;
+	max.Z = Origin.Z + vol.Max[2] * CellDim.Z + MaxObjExtent;
+
+	Vector3 center((max.X+min.X)*0.5f,(max.Y+min.Y)*0.5f,(max.Z+min.Z)*0.5f);
+	Vector3 extent((max.X-min.X)*0.5f,(max.Y-min.Y)*0.5f,(max.Z-min.Z)*0.5f);
+	set_box->Init(center,extent);
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::init_volume -- inits volume to contain the given range                 *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void GridCullSystemClass::init_volume
+(
+	const Vector3 &		bound_min,
+	const Vector3 &		bound_max,
+	VolumeStruct *			set_vol
+)
+{
+	// expand the box by the maximum size of any object
+	Vector3 grid_min = bound_min;
+	grid_min.X -= MaxObjExtent;
+	grid_min.Y -= MaxObjExtent;
+	grid_min.Z -= MaxObjExtent;
+
+	Vector3 grid_max = bound_max;
+	grid_max.X += MaxObjExtent;
+	grid_max.Y += MaxObjExtent;
+	grid_max.Z += MaxObjExtent;
+
+	// now compute the grid coordinates of the corners of the box
+	GridCullSystemClass::map_point_to_cell(grid_min,set_vol->Min[0],set_vol->Min[1],set_vol->Min[2]);
+	GridCullSystemClass::map_point_to_cell(grid_max,set_vol->Max[0],set_vol->Max[1],set_vol->Max[2]);
+
+	// now clamp the volume to the actual grid
+	clamp_indices_to_grid(&(set_vol->Min[0]),&(set_vol->Min[1]),&(set_vol->Min[2]));
+	clamp_indices_to_grid(&(set_vol->Max[0]),&(set_vol->Max[1]),&(set_vol->Max[2]));
+
+	// increment the outer edge of the box due to the way we traverse the grid...
+	set_vol->Max[0] ++;
+	set_vol->Max[1] ++;
+	set_vol->Max[2] ++;
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::init_volume -- inits volume to contain the given line segment          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void GridCullSystemClass::init_volume(const LineSegClass & line,VolumeStruct * set_volume)
+{
+	Vector3 min_pt,max_pt;
+	min_pt.X = WWMath::Min(line.Get_P0().X,line.Get_P1().X);
+	max_pt.X = WWMath::Max(line.Get_P0().X,line.Get_P1().X);
+	min_pt.Y = WWMath::Min(line.Get_P0().Y,line.Get_P1().Y);
+	max_pt.Y = WWMath::Max(line.Get_P0().Y,line.Get_P1().Y);
+	min_pt.Z = WWMath::Min(line.Get_P0().Z,line.Get_P1().Z);
+	max_pt.Z = WWMath::Max(line.Get_P0().Z,line.Get_P1().Z);
+	init_volume(min_pt,max_pt,set_volume);
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::init_volume -- inits volume to contain the given box                   *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void GridCullSystemClass::init_volume(const AABoxClass & box,VolumeStruct * set_volume)
+{
+	init_volume(box.Center - box.Extent,box.Center + box.Extent,set_volume);
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::init_volume -- inits volume to contain the given oriented box          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void GridCullSystemClass::init_volume(const OBBoxClass & box,VolumeStruct * set_volume)
+{
+	Vector3 aaextent;
+	box.Compute_Axis_Aligned_Extent(&aaextent);
+	init_volume(box.Center - aaextent,box.Center + aaextent,set_volume);
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::init_volume -- inits volume to contain the given frustum               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void GridCullSystemClass::init_volume(const FrustumClass & frustum,VolumeStruct * set_volume)
+{
+	init_volume(frustum.Get_Bound_Min(),frustum.Get_Bound_Max(),set_volume);
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::VolumeStruct::VolumeStruct -- constructor                              *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *=============================================================================================*/
+WWINLINE GridCullSystemClass::VolumeStruct::VolumeStruct(void)
+{
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::VolumeStruct::VolumeStruct -- constructor                              *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE GridCullSystemClass::VolumeStruct::VolumeStruct(int i0,int j0,int k0,int i1,int j1,int k1)
+{
+	Min[0] = i0;
+	Min[1] = j0;
+	Min[2] = k0;
+	Max[0] = i1;
+	Max[1] = j1;
+	Max[2] = k1;
+	WWASSERT(Max[0] > Min[0]);
+	WWASSERT(Max[1] > Min[1]);
+	WWASSERT(Max[2] > Min[2]);
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::VolumeStruct::Is_Leaf -- check if volume is a leaf                     *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE bool GridCullSystemClass::VolumeStruct::Is_Leaf(void) const 
+{ 
+	return ((Max[0]-Min[0] == 1) && (Max[1]-Min[1] == 1) && (Max[2]-Min[2] == 1)); 
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::VolumeStruct::Is_Empty -- check if volume is empty (or invalid)        *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE bool GridCullSystemClass::VolumeStruct::Is_Empty(void) const
+{
+	return ((Max[0]-Min[0] <= 0) || (Max[1]-Min[1] <= 0) || (Max[2]-Min[2] <= 0));
+}
+
+
+/***********************************************************************************************
+ * GridCullSystemClass::VolumeStruct::Split -- split this volume                               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/30/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void GridCullSystemClass::VolumeStruct::Split(VolumeStruct & v0,VolumeStruct & v1) const
+{	
+	// find the longest dimension
+	int split_axis = 0;
+	int delta[3];
+
+	delta[0] = Max[0] - Min[0];
+	delta[1] = Max[1] - Min[1];
+	delta[2] = Max[2] - Min[2];
+
+	if (delta[1] > delta[split_axis]) split_axis = 1;
+	if (delta[2] > delta[split_axis]) split_axis = 2;
+
+	WWASSERT(delta[split_axis] > 0);
+
+	// split the volume perpendicularly to that dimension
+	memcpy(&v0,this,sizeof(VolumeStruct));
+	memcpy(&v1,this,sizeof(VolumeStruct));
+
+	v0.Max[split_axis] = v1.Min[split_axis] = Min[split_axis] + (delta[split_axis] >> 1);
+}

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/hermitespline.cpp

@@ -0,0 +1,437 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /VSS_Sync/wwmath/hermitespline.cpp                          $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 6/13/01 2:18p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 11                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "hermitespline.h"
+#include "wwmathids.h"
+#include "persistfactory.h"
+#include "wwhack.h"
+
+
+/*
+** Force-Link this module because the linker can't detect that we actually need it...
+*/
+DECLARE_FORCE_LINK(hermitespline);
+
+/*
+** Save-Load stuff
+*/
+SimplePersistFactoryClass<HermiteSpline3DClass,WWMATH_CHUNKID_HERMITESPLINE3D>	_HermiteSpline3DFactory;
+SimplePersistFactoryClass<HermiteSpline1DClass,WWMATH_CHUNKID_HERMITESPLINE1D>	_HermiteSpline1DFactory;
+
+enum 
+{
+	// ID's used by HermiteSpline3D
+	HERMITE3D_CHUNK_CURVE3D					= 0x00020727,	
+	HERMITE3D_CHUNK_TANGENTS,			
+
+	// ID's used by HermiteSpline1D
+	HERMITE1D_CHUNK_CURVE1D					= 0x00020729,	
+	HERMITE1D_CHUNK_TANGENTS,			
+};
+
+
+/*
+** Hermite Spline
+*/
+const HermiteSpline3DClass &HermiteSpline3DClass::operator= (const HermiteSpline3DClass &that)
+{
+	//
+	//	This is included for completeness only, it basically
+	// implements the default bitwise copy operator.
+	//
+	TangentsDirty	= that.TangentsDirty;
+	Tangents			= that.Tangents;
+	Curve3DClass::operator= (that);
+	return (*this);
+}
+
+void HermiteSpline3DClass::Set_Looping(bool onoff)
+{
+	if (onoff != IsLooping) {
+		Curve3DClass::Set_Looping(onoff);
+		TangentsDirty = true;
+	}
+}
+
+void HermiteSpline3DClass::Evaluate(float time,Vector3 * set_val)
+{
+	// if we're outside the range, return the start or end...
+	if (time < Keys[0].Time) { 
+		*set_val = Keys[0].Point;
+		return;
+	}
+
+	if (time > Keys[Keys.Count() - 1].Time) {
+		*set_val = Keys[Keys.Count() - 1].Point;
+		return;
+	}
+
+	// if the tangents are marked dirty, give derived classes a chance to recompute them
+	if (TangentsDirty) {
+		Update_Tangents();
+	}
+	
+	// ok find the segment
+	int i0,i1;
+	float t;
+	Find_Interval(time,&i0,&i1,&t);
+
+	float t2 = t*t;
+	float t3 = t2*t;
+
+	// hermite basis functions:
+	float h0 = 2*t3 - 3*t2 + 1;
+	float h1 = -2*t3 + 3*t2;
+	float h2 = t3 - 2*t2 + t;
+	float h3 = t3 - t2;
+
+	set_val->X =	h0*Keys[i0].Point.X + h1*Keys[i1].Point.X + 
+						h2*Tangents[i0].OutTangent.X + h3*Tangents[i1].InTangent.X;
+
+	set_val->Y =	h0*Keys[i0].Point.Y + h1*Keys[i1].Point.Y + 
+						h2*Tangents[i0].OutTangent.Y + h3*Tangents[i1].InTangent.Y;
+
+	set_val->Z =	h0*Keys[i0].Point.Z + h1*Keys[i1].Point.Z + 
+						h2*Tangents[i0].OutTangent.Z + h3*Tangents[i1].InTangent.Z;
+}
+
+void HermiteSpline3DClass::Evaluate_Derivative(float time,Vector3 * set_val)
+{
+	// if we're outside the range, return the value for the start or end...
+	float min_time = Keys[0].Time;
+	float max_time = Keys[Keys.Count() - 1].Time;
+	time = MAX(time, min_time);
+	time = MIN(time, max_time);
+
+	// if the tangents are marked dirty, give derived classes a chance to recompute them
+	if (TangentsDirty) {
+		Update_Tangents();
+	}
+	
+	// ok find the segment
+	int i0,i1;
+	float t;
+	Find_Interval(time,&i0,&i1,&t);
+
+	float t2 = t*t;
+
+	// derivatives of hermite basis functions:
+	float dh0 = 6*t2 - 6*t;
+	float dh1 = -6*t2 + 6*t;
+	float dh2 = 3*t2 - 4*t + 1;
+	float dh3 = 3*t2 - 2*t;
+
+	set_val->X =	dh0*Keys[i0].Point.X + dh1*Keys[i1].Point.X + 
+						dh2*Tangents[i0].OutTangent.X + dh3*Tangents[i1].InTangent.X;
+
+	set_val->Y =	dh0*Keys[i0].Point.Y + dh1*Keys[i1].Point.Y + 
+						dh2*Tangents[i0].OutTangent.Y + dh3*Tangents[i1].InTangent.Y;
+
+	set_val->Z =	dh0*Keys[i0].Point.Z + dh1*Keys[i1].Point.Z + 
+						dh2*Tangents[i0].OutTangent.Z + dh3*Tangents[i1].InTangent.Z;
+}
+
+void HermiteSpline3DClass::Set_Key(int i,const Vector3 & point)
+{
+	Curve3DClass::Set_Key(i,point);
+	TangentsDirty = true;
+}
+
+int HermiteSpline3DClass::Add_Key(const Vector3 & point,float t)
+{
+	int index = Curve3DClass::Add_Key(point,t);
+	TangentsDirty = true;
+	TangentsClass tan;
+	tan.InTangent.Set(0,0,0);
+	tan.OutTangent.Set(0,0,0);
+	Tangents.Insert(index,tan);
+	return index;
+}
+
+void HermiteSpline3DClass::Remove_Key(int i)
+{
+	Tangents.Delete(i);
+	Curve3DClass::Remove_Key(i);
+	TangentsDirty = true;
+}
+
+void HermiteSpline3DClass::Clear_Keys(void)
+{
+	Tangents.Clear();
+	Curve3DClass::Clear_Keys();
+	TangentsDirty = true;
+}
+
+void HermiteSpline3DClass::Set_Tangents(int i,const Vector3 & in_tan,const Vector3 & out_tan)
+{
+	assert(i>=0);
+	assert(i<Keys.Count());
+	Tangents[i].InTangent = in_tan;
+	Tangents[i].OutTangent = out_tan;
+}
+
+void HermiteSpline3DClass::Get_Tangents(int i,Vector3 * set_in,Vector3 * set_out)
+{
+	assert(i>=0);
+	assert(i<Keys.Count());
+	*set_in = Tangents[i].InTangent;
+	*set_out = Tangents[i].OutTangent;
+}
+
+const PersistFactoryClass & HermiteSpline3DClass::Get_Factory(void) const
+{
+	return _HermiteSpline3DFactory;
+}
+
+bool HermiteSpline3DClass::Save(ChunkSaveClass &csave)
+{
+	csave.Begin_Chunk(HERMITE3D_CHUNK_CURVE3D);
+	Curve3DClass::Save(csave);
+	csave.End_Chunk();
+	
+	csave.Begin_Chunk(HERMITE3D_CHUNK_TANGENTS);
+	for (int i=0; i<Tangents.Count(); i++) {
+		csave.Write(&(Tangents[i].InTangent),sizeof(Tangents[i].InTangent));
+		csave.Write(&(Tangents[i].OutTangent),sizeof(Tangents[i].OutTangent));
+	}
+	csave.End_Chunk();
+	return true;
+}
+
+bool HermiteSpline3DClass::Load(ChunkLoadClass &cload)
+{
+	int i;
+	TangentsClass newtangent;
+
+	// reset the array of tangents
+	Tangents.Delete_All();
+
+	// read in the chunks
+	while (cload.Open_Chunk()) {
+		
+		switch(cload.Cur_Chunk_ID()) 
+		{
+			case HERMITE3D_CHUNK_CURVE3D:
+				Curve3DClass::Load(cload);
+				break;
+
+			case HERMITE3D_CHUNK_TANGENTS:
+				for (i=0; i<Keys.Count(); i++) {
+					cload.Read(&(newtangent.InTangent),sizeof(newtangent.InTangent));
+					cload.Read(&(newtangent.OutTangent),sizeof(newtangent.OutTangent));
+					Tangents.Add(newtangent);
+				}
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	WWASSERT(Keys.Count() == Tangents.Count());
+	return true;
+}
+
+
+
+
+/*
+** 1-Dimensional Hermite Spline
+*/
+void HermiteSpline1DClass::Set_Looping(bool onoff)
+{
+	if (onoff != IsLooping) {
+		Curve1DClass::Set_Looping(onoff);
+		TangentsDirty = true;
+	}
+}
+
+void HermiteSpline1DClass::Evaluate(float time,float * set_val)
+{
+	if (Keys.Count() == 1)
+	{
+		*set_val = Keys[0].Point;
+		return;
+	}
+
+	if (!IsLooping)
+	{
+		// if we're outside the range, return the start or end...
+		if (time < Keys[0].Time) { 
+			*set_val = Keys[0].Point;
+			return;
+		}
+
+		if (time > Keys[Keys.Count() - 1].Time) {
+			*set_val = Keys[Keys.Count() - 1].Point;
+			return;
+		}
+	}
+
+	// if the tangents are marked dirty, give derived classes a chance to recompute them
+	if (TangentsDirty) {
+		Update_Tangents();
+	}
+	
+	// ok find the segment
+	int i0,i1;
+	float t;
+	Find_Interval(time,&i0,&i1,&t);
+
+	float t2 = t*t;
+	float t3 = t2*t;
+
+	// hermite basis functions:
+	float h0 = 2*t3 - 3*t2 + 1;
+	float h1 = -2*t3 + 3*t2;
+	float h2 = t3 - 2*t2 + t;
+	float h3 = t3 - t2;
+
+	*set_val = h0*Keys[i0].Point + h1*Keys[i1].Point +
+		h2*Tangents[i0].OutTangent + h3*Tangents[i1].InTangent;
+}
+
+void HermiteSpline1DClass::Set_Key(int i,float point,unsigned int extra)
+{
+	Curve1DClass::Set_Key(i,point,extra);
+	TangentsDirty = true;
+}
+
+int HermiteSpline1DClass::Add_Key(float point,float t,unsigned int extra)
+{
+	int index = Curve1DClass::Add_Key(point,t,extra);
+	TangentsDirty = true;
+	TangentsClass tan;
+	tan.InTangent = 0.0f;
+	tan.OutTangent = 0.0f;
+	Tangents.Insert(index,tan);
+	return index;
+}
+
+void HermiteSpline1DClass::Remove_Key(int i)
+{
+	Tangents.Delete(i);
+	Curve1DClass::Remove_Key(i);
+	TangentsDirty = true;
+}
+
+void HermiteSpline1DClass::Clear_Keys(void)
+{
+	Tangents.Clear();
+	Curve1DClass::Clear_Keys();
+	TangentsDirty = true;
+}
+
+void HermiteSpline1DClass::Set_Tangents(int i,float in_tan,float out_tan)
+{
+	assert(i>=0);
+	assert(i<Keys.Count());
+	Tangents[i].InTangent = in_tan;
+	Tangents[i].OutTangent = out_tan;
+}
+
+void HermiteSpline1DClass::Get_Tangents(int i,float * set_in,float * set_out)
+{
+	assert(i>=0);
+	assert(i<Keys.Count());
+	*set_in = Tangents[i].InTangent;
+	*set_out = Tangents[i].OutTangent;
+}
+
+const PersistFactoryClass & HermiteSpline1DClass::Get_Factory(void) const
+{
+	return _HermiteSpline1DFactory;
+}
+
+bool HermiteSpline1DClass::Save(ChunkSaveClass &csave)
+{
+	if (TangentsDirty) {
+		Update_Tangents();
+	}
+
+	csave.Begin_Chunk(HERMITE1D_CHUNK_CURVE1D);
+	Curve1DClass::Save(csave);
+	csave.End_Chunk();
+	
+	csave.Begin_Chunk(HERMITE1D_CHUNK_TANGENTS);
+	for (int i=0; i<Tangents.Count(); i++) {
+		csave.Write(&(Tangents[i].InTangent),sizeof(Tangents[i].InTangent));
+		csave.Write(&(Tangents[i].OutTangent),sizeof(Tangents[i].OutTangent));
+	}
+	csave.End_Chunk();
+	return true;
+}
+
+bool HermiteSpline1DClass::Load(ChunkLoadClass &cload)
+{
+	int i;
+	TangentsClass newtangent;
+
+	// reset the tangents array
+	Tangents.Delete_All();
+
+	// read in the chunks
+	while (cload.Open_Chunk()) {
+		
+		switch(cload.Cur_Chunk_ID()) 
+		{
+			case HERMITE1D_CHUNK_CURVE1D:
+				Curve1DClass::Load(cload);
+				break;
+
+			case HERMITE1D_CHUNK_TANGENTS:
+				for (i=0; i<Keys.Count(); i++) {
+					cload.Read(&(newtangent.InTangent),sizeof(newtangent.InTangent));
+					cload.Read(&(newtangent.OutTangent),sizeof(newtangent.OutTangent));
+					Tangents.Add(newtangent);
+				}
+				TangentsDirty = false;
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	WWASSERT(Keys.Count() == Tangents.Count());
+	return true;
+}
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/hermitespline.h

@@ -0,0 +1,143 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /VSS_Sync/wwmath/hermitespline.h                            $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 6/13/01 2:18p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 7                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef HERMITE_H
+#define HERMITE_H
+
+#include "curve.h"
+
+/*
+** HermiteSpline3DClass
+** 3-Dimensional hermite spline interpolation
+** Hermite splines require you to input all of the tangents...
+*/
+class HermiteSpline3DClass : public Curve3DClass
+{
+public:
+	HermiteSpline3DClass(void)
+		: TangentsDirty (true) { }
+
+	HermiteSpline3DClass(const HermiteSpline3DClass &that)
+		: TangentsDirty (true) { (*this) = that; }
+
+	const HermiteSpline3DClass &operator= (const HermiteSpline3DClass &that);
+	
+	virtual void		Evaluate(float time,Vector3 * set_val);
+	virtual void		Evaluate_Derivative(float time,Vector3 * set_val);
+	virtual void		Set_Looping(bool onoff);
+	
+	virtual void		Set_Key(int i,const Vector3 & point);
+	virtual int			Add_Key(const Vector3 & point,float t);
+	virtual void		Remove_Key(int i);
+	virtual void		Clear_Keys(void);
+
+	virtual void		Set_Tangents(int i,const Vector3 & in_tan,const Vector3 & out_tan);
+	virtual void		Get_Tangents(int i,Vector3 * set_in,Vector3 * set_out);
+
+	virtual void		Update_Tangents(void) { TangentsDirty = false; }
+
+	// save-load support
+	virtual const PersistFactoryClass &	Get_Factory(void) const;
+	virtual bool								Save(ChunkSaveClass &csave);
+	virtual bool								Load(ChunkLoadClass &cload);
+
+protected:
+
+	class TangentsClass
+	{
+	public:
+		Vector3			InTangent;
+		Vector3			OutTangent;
+		bool				operator == (const TangentsClass & that) { return ((InTangent == that.InTangent) && (OutTangent == that.OutTangent)); }
+		bool				operator != (const TangentsClass & that) { return !TangentsClass::operator == (that); }
+	};	
+
+	bool											TangentsDirty;
+	DynamicVectorClass<TangentsClass>	Tangents;
+};
+
+
+/*
+** HermiteSpline1DClass
+** 1-Dimensional hermite spline interpolation
+** Hermite splines require you to input all of the tangents...
+*/
+class HermiteSpline1DClass : public Curve1DClass
+{
+public:
+	HermiteSpline1DClass (void)
+		: TangentsDirty (true) { }
+	
+	virtual void		Evaluate(float time,float * set_val);
+	virtual void		Set_Looping(bool onoff);
+	
+	virtual void		Set_Key(int i,float point,unsigned int extra=0);
+	virtual int			Add_Key(float point,float t,unsigned int extra=0);
+	virtual void		Remove_Key(int i);
+	virtual void		Clear_Keys(void);
+
+	virtual void		Set_Tangents(int i,float in_tan,float out_tan);
+	virtual void		Get_Tangents(int i,float * set_in,float * set_out);
+
+	// save-load support
+	virtual const PersistFactoryClass &	Get_Factory(void) const;
+	virtual bool								Save(ChunkSaveClass &csave);
+	virtual bool								Load(ChunkLoadClass &cload);
+	
+protected:
+
+	class TangentsClass
+	{
+	public:
+		float			InTangent;
+		float			OutTangent;
+		bool				operator == (const TangentsClass & that) { return ((InTangent == that.InTangent) && (OutTangent == that.OutTangent)); }
+		bool				operator != (const TangentsClass & that) { return !TangentsClass::operator == (that); }
+	};
+
+	virtual void		Update_Tangents(void) { TangentsDirty = false; }
+
+	bool											TangentsDirty;
+	DynamicVectorClass<TangentsClass>	Tangents;
+};
+
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/lineseg.cpp

@@ -0,0 +1,231 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/lineseg.cpp                           $*
+ *                                                                                             *
+ *                       Author:: Greg_h                                                       *
+ *                                                                                             *
+ *                     $Modtime:: 3/16/00 3:16p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 25                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   LineSegClass::Set -- Initialize this 'lineseg' by transforming another 'lineseg'          *
+ *   LineSegClass::Set_Random -- create a random linesegment within the given space            *
+ *   LineSegClass::Find_Point_Closest_To -- Finds point on line closest to point supplied.     * 
+ *   LineSegClass::Find_Intersection -- Finds the closest points on the two lines				  * 
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "lineseg.h"
+//#include <stdlib.h>
+
+#include "matrix3d.h"
+
+/***********************************************************************************************
+ * LineSegClass::Set -- Initialize this 'lineseg' by transforming another 'lineseg'            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   6/17/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+void LineSegClass::Set(const LineSegClass & that,const Matrix3D & tm)
+{
+	/*
+	** Transform P0 and P1
+	*/
+	Matrix3D::Transform_Vector(tm,that.P0,&P0);
+	Matrix3D::Transform_Vector(tm,that.P1,&P1);
+	
+	/*
+	** Just calculate DP
+	*/
+	DP = P1 - P0;
+
+	/*
+	** Rotate the direction vector
+	*/
+	Matrix3D::Rotate_Vector(tm,that.Dir,&Dir);
+
+	/*
+	** Length should be un-changed
+	*/
+	Length = that.Length;
+}
+
+/***********************************************************************************************
+ * LineSegClass::Set_Random -- create a random linesegment within the given space              *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/21/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+void LineSegClass::Set_Random(const Vector3 & min,const Vector3 & max)
+{
+	float frac;
+
+	frac = WWMath::Random_Float();
+	P0.X = min.X + frac * (max.X - min.X);
+	frac = WWMath::Random_Float();
+	P0.Y = min.Y + frac * (max.Y - min.Y);
+	frac = WWMath::Random_Float();
+	P0.Z = min.Z + frac * (max.Z - min.Z);
+
+	frac = WWMath::Random_Float();
+	P1.X = min.X + frac * (max.X - min.X);
+	frac = WWMath::Random_Float();
+	P1.Y = min.Y + frac * (max.Y - min.Y);
+	frac = WWMath::Random_Float();
+	P1.Z = min.Z + frac * (max.Z - min.Z);
+
+	DP = P1 - P0;
+	Dir = DP; 
+	Dir.Normalize(); 
+	Length = DP.Length(); 
+}
+
+
+
+
+/*********************************************************************************************** 
+ * LineSegClass::Find_Point_Closest_To -- Finds point on line closest to point supplied.       * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   07/26/1999 SKB : Created.                                                                 * 
+ *=============================================================================================*/
+Vector3 LineSegClass::Find_Point_Closest_To(const Vector3 &pos) const
+{
+	// Get a vector from one line endpoint to point in question.
+	Vector3 v_0_pos = (pos - P0);
+	float dotprod = Vector3::Dot_Product(Dir, v_0_pos);
+					
+	// Check to see if point is past either of the endpoints.
+	// (Unable to draw a perpendicular line from the point to the line segment.)
+	if (dotprod <= 0.0) {
+		return(P0);
+	} else if (dotprod >= Length) {
+		return(P1);
+	}				
+
+	// Find point on line seg that is closest to pos passed in.
+	Vector3 point = P0 + (dotprod * Dir);
+	return(point);
+}	
+
+
+/*********************************************************************************************** 
+ * LineSegClass::Find_Intersection -- Finds the closest points on the two lines..				  * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   03/03/2000 PDS : Created.                                                                 * 
+ *=============================================================================================*/
+bool
+LineSegClass::Find_Intersection
+(
+	const LineSegClass &	other_line,
+	Vector3 *				p1,
+	float	*					fraction1,
+	Vector3 *				p2,
+	float *					fraction2
+) const
+{
+	bool retval = false;
+
+#ifdef ALLOW_TEMPORARIES
+	Vector3 cross1 = Vector3::Cross_Product (Dir, other_line.Dir);
+	Vector3 cross2 = Vector3::Cross_Product (other_line.P0 - P0, other_line.Dir);
+	float top1		= cross2 * cross1;
+	float bottom1	= cross1 * cross1;
+
+	Vector3 cross3 = Vector3::Cross_Product (other_line.Dir, Dir);
+	Vector3 cross4 = Vector3::Cross_Product (P0 - other_line.P0, Dir);
+	float top2		= cross4 * cross3;
+	float bottom2	= cross3 * cross3;
+#else
+	Vector3 cross1, cross2, cross3, cross4;
+
+	Vector3::Cross_Product(Dir, other_line.Dir, &cross1);
+	Vector3::Cross_Product(other_line.P0 - P0, other_line.Dir, &cross2);
+	float top1		= Vector3::Dot_Product(cross2, cross1);
+	float bottom1	= Vector3::Dot_Product(cross1, cross1);
+
+	Vector3::Cross_Product(other_line.Dir, Dir, &cross3);
+	Vector3::Cross_Product(P0 - other_line.P0, Dir, &cross4);
+	float top2		= Vector3::Dot_Product(cross4, cross3);
+	float bottom2	= Vector3::Dot_Product(cross3, cross3);
+#endif
+	
+	//
+	//	If either of the divisors are 0, then the lines are parallel
+	//
+	if (bottom1 != 0 && bottom2 != 0) {		
+		float length1 = top1 / bottom1;
+		float length2 = top2 / bottom2;
+
+		//
+		//	Calculate the closest points on both lines.
+		// Note:  If the points are the same, then the lines intersect.
+		//
+		(*p1) = P0 + (Dir * length1);
+		(*p2) = other_line.P0 + (other_line.Dir * length2);
+
+		//
+		//	Return the fractions if they caller wants them
+		//
+		if (fraction1 != NULL) {
+			(*fraction1) = length1 / Length;
+		}
+
+		if (fraction2 != NULL) {
+			(*fraction2) = length2 / Length;
+		}
+		
+		retval = true;
+	}
+
+	return retval;
+}
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/lineseg.h

@@ -0,0 +1,93 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/lineseg.h                             $*
+ *                                                                                             *
+ *                       Author:: Greg_h                                                       *
+ *                                                                                             *
+ *                     $Modtime:: 3/16/00 3:16p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 21                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef LINESEG_H
+#define LINESEG_H
+
+#include "always.h"
+#include "vector3.h"
+#include "castres.h"
+
+class TriClass;
+class AABoxClass;
+class OBBoxClass;
+class PlaneClass;
+class SphereClass;
+class Matrix3D;
+
+
+class LineSegClass
+{
+
+public:
+
+	LineSegClass(void) { }
+	LineSegClass(const Vector3 & p0,const Vector3 & p1) : P0(p0), P1(p1) { recalculate(); }
+	LineSegClass(const LineSegClass & that,const Matrix3D & tm) { Set(that,tm); }
+
+	void					Set(const Vector3 & p0,const Vector3 & p1) { P0 = p0; P1 = p1; recalculate(); }
+	void					Set(const LineSegClass & that,const Matrix3D & tm);
+	void					Set_Random(const Vector3 & min,const Vector3 & max);
+
+	const Vector3 &	Get_P0() const { return P0; }				// start point
+	const Vector3 &	Get_P1() const { return P1; }				// end point
+	const Vector3 &	Get_DP() const { return DP; }				// difference of the two points
+	const Vector3 &	Get_Dir() const { return Dir; }			// normalized direction.
+	float					Get_Length() const { return Length; }	// length of the segment
+
+	void					Compute_Point(float t,Vector3 * set) const	{ Vector3::Add(P0,t*DP,set); }
+	
+	Vector3				Find_Point_Closest_To(const Vector3 &pos) const;
+	bool					Find_Intersection (const LineSegClass &other_line, Vector3 *p1, float *fraction1, Vector3 *p2, float *fraction2) const;
+
+protected:
+
+	void					recalculate(void) { DP = P1 - P0; Dir = DP; Dir.Normalize(); Length = DP.Length(); }
+
+	Vector3				P0;		// start point
+	Vector3				P1;		// end point
+	Vector3				DP;		// difference of the two points
+	Vector3				Dir;		// normalized direction.
+	float					Length;	// length of the segment
+};
+
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/lookuptable.cpp

@@ -0,0 +1,250 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWPhys                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/lookuptable.cpp                       $*
+ *                                                                                             *
+ *              Original Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                      $Author:: Byon_g                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 7/23/01 6:18p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 5                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "lookuptable.h"
+#include "curve.h"
+#include "wwfile.h"
+#include "ffactory.h"
+#include "chunkio.h"
+#include "persistfactory.h"
+#include "vector2.h"
+
+
+/*
+** Static members
+*/
+RefMultiListClass<LookupTableClass>	LookupTableMgrClass::Tables;
+
+/*
+** Save-Load stuff.  Lookup tables are basically saved 1D curve classes.  They are turned
+** into tables at load time.  For future expansion, the curve is wrapped in a chunk.
+*/
+enum
+{
+	LOOKUPTABLE_CHUNK_CURVE		= 03071200,
+	LOOKUPTABLE_CHUNK_EXTENTS,
+};
+
+
+/***********************************************************************************************
+**
+** LookupTableClass Implementation
+**
+***********************************************************************************************/
+LookupTableClass::LookupTableClass(int sample_count) :
+	MinInputValue(0.0f),
+	MaxInputValue(0.0f),
+	OutputSamples(sample_count)
+{
+}
+
+LookupTableClass::~LookupTableClass(void)
+{
+}
+
+void LookupTableClass::Init(const char * name,Curve1DClass * curve)
+{
+	// copy the name
+	Name = name;
+
+	// Store the min and max input values for the table
+	curve->Get_Key(0,NULL,&MinInputValue,NULL);
+	curve->Get_Key(curve->Key_Count()-1,NULL,&MaxInputValue,NULL);
+	OOMaxMinusMin = 1.0f / (MaxInputValue - MinInputValue);
+
+	// Sample the curve and store the output values
+	for (int i=0; i<OutputSamples.Length(); i++) {
+		float x = MinInputValue + (MaxInputValue - MinInputValue) * (float)i / (float)(OutputSamples.Length() - 1);
+		float y;
+		curve->Evaluate(x,&y);
+		OutputSamples[i] = y;
+	}
+}
+
+
+
+/***********************************************************************************************
+**
+** LookupTableManager Implementation
+**
+***********************************************************************************************/
+void LookupTableMgrClass::Init(void)
+{
+	// create a default table that the user can use in an emergency
+	LookupTableClass * default_table = NEW_REF(LookupTableClass,(2));
+	LinearCurve1DClass * default_curve = W3DNEW LinearCurve1DClass;
+	
+	default_curve->Add_Key(0.5f,0.0f);
+	default_curve->Add_Key(0.5f,1.0f);
+	default_table->Init("DefaultTable",default_curve);
+	Add_Table(default_table);
+
+	delete default_curve;
+	default_table->Release_Ref();
+}
+
+void LookupTableMgrClass::Shutdown(void)
+{
+	Reset();
+}
+
+void LookupTableMgrClass::Reset(void)
+{
+	while (Tables.Peek_Head() != NULL) {
+		Tables.Release_Head();
+	}
+}
+
+bool LookupTableMgrClass::Add_Table(LookupTableClass * table)
+{
+	return Tables.Add(table);
+}
+
+bool LookupTableMgrClass::Remove_Table(LookupTableClass * table)
+{
+	return Tables.Remove(table);
+}
+
+LookupTableClass * LookupTableMgrClass::Get_Table(const char * name,bool try_to_load)
+{
+	// check if we already have this table loaded...
+	RefMultiListIterator<LookupTableClass> it(&Tables);
+	for (it.First(); !it.Is_Done(); it.Next()) {
+		if (stricmp(it.Peek_Obj()->Get_Name(),name) == 0) {
+			return it.Get_Obj(); // add a reference for the user...
+		}
+	}
+
+	// otherwise we can try to load it.
+	LookupTableClass * new_table = NULL;
+	if (try_to_load) {
+
+		FileClass * file = _TheFileFactory->Get_File(name);
+		if (file && file->Open()) {
+			
+			ChunkLoadClass cload(file);
+
+			Curve1DClass * curve = NULL;
+			Load_Table_Desc(cload,&curve);
+			if (curve != NULL) {
+				new_table = NEW_REF(LookupTableClass,());
+				new_table->Init(name,curve);
+				Add_Table(new_table);
+				delete curve;
+			}
+		}
+		_TheFileFactory->Return_File(file);
+	}
+	
+	return new_table;  // constructor ref is returned to user.
+}
+
+void LookupTableMgrClass::Save_Table_Desc
+(
+	ChunkSaveClass &	csave,
+	Curve1DClass *		curve,
+	const Vector2 &	min_corner,
+	const Vector2 &	max_corner
+)
+{
+	// save the curve
+	csave.Begin_Chunk(LOOKUPTABLE_CHUNK_CURVE);
+	csave.Begin_Chunk(curve->Get_Factory().Chunk_ID());
+	curve->Get_Factory().Save(csave,curve);
+	csave.End_Chunk();
+	csave.End_Chunk();
+
+	// save the extents
+	csave.Begin_Chunk(LOOKUPTABLE_CHUNK_EXTENTS);
+	csave.Write(&(min_corner.X),sizeof(float));
+	csave.Write(&(min_corner.Y),sizeof(float));
+	csave.Write(&(max_corner.X),sizeof(float));
+	csave.Write(&(max_corner.Y),sizeof(float));
+	csave.End_Chunk();
+}
+
+void LookupTableMgrClass::Load_Table_Desc
+(
+	ChunkLoadClass &	cload,
+	Curve1DClass **	curve_ptr,
+	Vector2 *			set_min_corner,
+	Vector2 *			set_max_corner
+)
+{
+	*curve_ptr = NULL;
+	PersistFactoryClass * factory;
+
+	float xmin,xmax;
+	float ymin,ymax;
+	xmin = xmax = ymin = ymax = 0.0f;
+
+	while (cload.Open_Chunk()) {
+		switch(cload.Cur_Chunk_ID()) {
+			case LOOKUPTABLE_CHUNK_CURVE:
+				cload.Open_Chunk();
+				factory = SaveLoadSystemClass::Find_Persist_Factory(cload.Cur_Chunk_ID());
+				WWASSERT(factory != NULL);
+				if (factory != NULL) {
+					*curve_ptr = (Curve1DClass *)factory->Load(cload);
+				}
+				cload.Close_Chunk();
+				break;
+			case LOOKUPTABLE_CHUNK_EXTENTS:
+				cload.Read(&xmin,sizeof(xmin));
+				cload.Read(&ymin,sizeof(ymin));
+				cload.Read(&xmax,sizeof(xmax));
+				cload.Read(&ymax,sizeof(ymax));
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	if (set_min_corner != NULL) {
+		set_min_corner->Set(xmin,ymin);
+	}
+	if (set_max_corner != NULL) {
+		set_max_corner->Set(xmax,ymax);
+	}
+}
+
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/lookuptable.h

@@ -0,0 +1,161 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWPhys                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/lookuptable.h                         $*
+ *                                                                                             *
+ *              Original Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                      $Author:: Greg_h                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 4/18/00 1:20p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 6                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#ifndef LOOKUPTABLE_H
+#define LOOKUPTABLE_H
+
+#include "always.h"
+#include "simplevec.h"
+#include "wwstring.h"
+#include "refcount.h"
+#include "multilist.h"
+#include "wwmath.h"
+
+
+class Vector2;
+class Curve1DClass;
+class ChunkSaveClass;
+class ChunkLoadClass;
+
+
+/**
+** LookupTableClass
+** This class contains the tabulated values for a function. 
+*/
+class LookupTableClass : public RefCountClass, public MultiListObjectClass
+{
+public:
+
+	LookupTableClass(int sample_count = 256);
+	virtual ~LookupTableClass(void);
+
+	void								Init(const char * name,Curve1DClass * curve);
+	float								Get_Value(float input);
+	float								Get_Value_Quick(float input);
+	const char *					Get_Name(void)							{ return Name; }
+protected:
+
+	StringClass						Name;				// name of this table, if it came from a file, this is also the filename
+	float								MinInputValue; 
+	float								MaxInputValue;
+	float								OOMaxMinusMin;
+	SimpleVecClass<float>		OutputSamples;
+
+};
+
+inline float LookupTableClass::Get_Value(float input)
+{
+	if (input <= MinInputValue) {
+		return OutputSamples[0];
+	}
+	if (input >= MaxInputValue) {
+		return OutputSamples[OutputSamples.Length()-1];
+	}
+	
+	float normalized_input = (float)(OutputSamples.Length()-1) * (input - MinInputValue) * OOMaxMinusMin;
+	float input0 = WWMath::Floor(normalized_input);
+	
+	int index0 = WWMath::Float_To_Long(input0);
+	int index1 = index0+1;
+	float lerp = normalized_input - input0;
+
+	return OutputSamples[index0] + lerp * (OutputSamples[index1] - OutputSamples[index0]);
+}
+
+inline float LookupTableClass::Get_Value_Quick(float input)
+{
+	if (input <= MinInputValue) {
+		return OutputSamples[0];
+	}
+	if (input >= MaxInputValue) {
+		return OutputSamples[OutputSamples.Length()-1];
+	}
+	
+	int index = (OutputSamples.Length()-1) * WWMath::Float_To_Long((input - MinInputValue) * OOMaxMinusMin);
+	return OutputSamples[index];
+}
+
+
+/**
+** LookupTableMgrClass
+** This class tracks all of the LookupTableClass's that have been loaded or installed.
+** LookupTables can be created using the "SimpleGraph" tool.  It basically allows you 
+** to edit a curve which will be used to generate the table.  These curves are stored
+** in .TBL files.
+**
+** NOTE: Use the SimpleGraph program to create lookup tables!  Then just ask for them
+** by filename and it will load the table for you (unless it is already loaded).
+**
+** NOTE: I add a table called "DefaultTable" so that you can revert to that if
+** your table isn't found.  
+*/
+class LookupTableMgrClass
+{
+public:
+	LookupTableMgrClass(void);
+	~LookupTableMgrClass(void);
+
+	// init and shutdown are automatically called from WWMath::Init, WWMath::Shutdown...
+	static void					Init(void);
+	static void					Shutdown(void);
+
+	static bool					Add_Table(LookupTableClass * table);
+	static bool					Remove_Table(LookupTableClass * table);
+	static LookupTableClass *	Get_Table(const char * name,bool try_to_load = true);
+	
+	static void					Save_Table_Desc(		ChunkSaveClass &	csave,
+																Curve1DClass *		curve,
+																const Vector2 &	min,
+																const Vector2 &	max			);
+	
+	static void					Load_Table_Desc(		ChunkLoadClass &	cload,
+																Curve1DClass **	curve_ptr,
+																Vector2 *			set_min = NULL,
+																Vector2 *			set_max = NULL	);
+
+	static void					Reset(void);
+
+protected:
+
+	static RefMultiListClass<LookupTableClass>	Tables;
+
+};
+
+
+#endif // LOOKUPTABLE_H

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/matrix3.cpp

@@ -0,0 +1,393 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/matrix3.cpp                           $*
+ *                                                                                             *
+ *                   Org Author:: Greg_h                                                       *
+ *                                                                                             *
+ *                       Author : Kenny Mitchell                                               * 
+ *                                                                                             *
+ *                     $Modtime:: 06/26/02 4:04p                                             $*
+ *                                                                                             *
+ *                    $Revision:: 17                                                          $*
+ *                                                                                             *
+ * 06/26/02 KM Matrix name change to avoid MAX conflicts                                       *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "matrix3.h"
+#include "matrix3d.h"
+#include "matrix4.h"
+#include "quat.h"
+
+
+/*
+** Some pre-initialized Matrix3x3's
+*/
+const Matrix3x3 Matrix3x3::Identity
+(
+	1.0,	0.0,	0.0,
+	0.0,	1.0,	0.0,
+	0.0,	0.0,	1.0
+);
+
+const Matrix3x3 Matrix3x3::RotateX90
+(
+	1.0,	0.0,	0.0,
+	0.0,	0.0, -1.0,
+	0.0,	1.0,	0.0
+);
+
+const Matrix3x3 Matrix3x3::RotateX180
+(
+	1.0,	0.0,	0.0,
+	0.0, -1.0,	0.0,
+	0.0,	0.0, -1.0
+);
+
+const Matrix3x3 Matrix3x3::RotateX270
+(
+	1.0,	0.0,	0.0,
+	0.0,	0.0,	1.0,
+	0.0, -1.0,	0.0
+);
+
+const Matrix3x3 Matrix3x3::RotateY90
+(
+	0.0,	0.0,	1.0,
+	0.0,	1.0,	0.0,
+  -1.0,	0.0,	0.0
+);
+
+const Matrix3x3 Matrix3x3::RotateY180
+(
+  -1.0,	0.0,	0.0,
+	0.0,	1.0,	0.0,
+	0.0,	0.0, -1.0
+);
+
+const Matrix3x3 Matrix3x3::RotateY270
+(
+	0.0,	0.0, -1.0,
+	0.0,	1.0,	0.0,
+	1.0,	0.0,	0.0
+);
+
+const Matrix3x3 Matrix3x3::RotateZ90
+(
+	0.0, -1.0,	0.0,
+	1.0,	0.0,	0.0,
+	0.0,	0.0,	1.0
+);
+
+const Matrix3x3 Matrix3x3::RotateZ180
+(
+  -1.0,	0.0,	0.0,
+	0.0, -1.0,	0.0,
+	0.0,	0.0,	1.0
+);
+
+const Matrix3x3 Matrix3x3::RotateZ270
+(
+	0.0,	1.0,	0.0,
+  -1.0,	0.0,	0.0,
+	0.0,	0.0,	1.0
+);
+
+
+
+/*********************************************************************************************** 
+ * Matrix3x3::Matrix3x3 -- Convert a Matrix3D (fake 4x4) to a Matrix3x3                              * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+Matrix3x3::Matrix3x3(const Matrix3D & m)
+{
+	Row[0].Set(m[0][0],m[0][1],m[0][2]);
+	Row[1].Set(m[1][0],m[1][1],m[1][2]);
+	Row[2].Set(m[2][0],m[2][1],m[2][2]);
+}
+
+Matrix3x3::Matrix3x3(const Matrix4x4 & m)
+{
+	Row[0].Set(m[0][0],m[0][1],m[0][2]);
+	Row[1].Set(m[1][0],m[1][1],m[1][2]);
+	Row[2].Set(m[2][0],m[2][1],m[2][2]);
+}
+
+void Matrix3x3::Set(const Matrix3D & m)
+{
+	Row[0].Set(m[0][0],m[0][1],m[0][2]);
+	Row[1].Set(m[1][0],m[1][1],m[1][2]);
+	Row[2].Set(m[2][0],m[2][1],m[2][2]);
+}
+
+void Matrix3x3::Set(const Matrix4x4 & m)
+{
+	Row[0].Set(m[0][0],m[0][1],m[0][2]);
+	Row[1].Set(m[1][0],m[1][1],m[1][2]);
+	Row[2].Set(m[2][0],m[2][1],m[2][2]);
+}
+
+void Matrix3x3::Set(const Quaternion & q)
+{
+	Row[0][0] = (float)(1.0 - 2.0 * (q[1] * q[1] + q[2] * q[2]));
+	Row[0][1] = (float)(2.0 * (q[0] * q[1] - q[2] * q[3]));
+	Row[0][2] = (float)(2.0 * (q[2] * q[0] + q[1] * q[3]));
+
+	Row[1][0] = (float)(2.0 * (q[0] * q[1] + q[2] * q[3]));
+	Row[1][1] = (float)(1.0 - 2.0f * (q[2] * q[2] + q[0] * q[0]));
+	Row[1][2] = (float)(2.0 * (q[1] * q[2] - q[0] * q[3]));
+
+	Row[2][0] = (float)(2.0 * (q[2] * q[0] - q[1] * q[3]));
+	Row[2][1] = (float)(2.0 * (q[1] * q[2] + q[0] * q[3]));
+	Row[2][2] =(float)(1.0 - 2.0 * (q[1] * q[1] + q[0] * q[0]));
+}
+
+
+Matrix3x3 & Matrix3x3::operator = (const Matrix3D & m)
+{
+	Row[0].Set(m[0][0],m[0][1],m[0][2]);
+	Row[1].Set(m[1][0],m[1][1],m[1][2]);
+	Row[2].Set(m[2][0],m[2][1],m[2][2]);
+	return *this; 
+}
+
+Matrix3x3 & Matrix3x3::operator = (const Matrix4x4 & m)
+{
+	Row[0].Set(m[0][0],m[0][1],m[0][2]);
+	Row[1].Set(m[1][0],m[1][1],m[1][2]);
+	Row[2].Set(m[2][0],m[2][1],m[2][2]);
+	return *this; 
+}
+
+void Matrix3x3::Multiply(const Matrix3D & a, const Matrix3x3 & b,Matrix3x3 * res)
+{
+	#define ROWCOL(i,j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j]
+    
+	(*res)[0][0] = ROWCOL(0,0);
+	(*res)[0][1] = ROWCOL(0,1);
+	(*res)[0][2] = ROWCOL(0,2);
+
+	(*res)[1][0] = ROWCOL(1,0);
+	(*res)[1][1] = ROWCOL(1,1);
+	(*res)[1][2] = ROWCOL(1,2);
+
+	(*res)[2][0] = ROWCOL(2,0);
+	(*res)[2][1] = ROWCOL(2,1);
+	(*res)[2][2] = ROWCOL(2,2);
+
+	#undef ROWCOL
+}
+
+void Matrix3x3::Multiply(const Matrix3x3 & a, const Matrix3D & b,Matrix3x3 * res)
+{
+	#define ROWCOL(i,j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j]
+    
+	(*res)[0][0] = ROWCOL(0,0);
+	(*res)[0][1] = ROWCOL(0,1);
+	(*res)[0][2] = ROWCOL(0,2);
+
+	(*res)[1][0] = ROWCOL(1,0);
+	(*res)[1][1] = ROWCOL(1,1);
+	(*res)[1][2] = ROWCOL(1,2);
+
+	(*res)[2][0] = ROWCOL(2,0);
+	(*res)[2][1] = ROWCOL(2,1);
+	(*res)[2][2] = ROWCOL(2,2);
+
+	#undef ROWCOL
+}
+
+Matrix3x3 operator * (const Matrix3D & a, const Matrix3x3 & b)
+{
+	#define ROWCOL(i,j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j]
+    
+	return Matrix3x3(
+			Vector3(ROWCOL(0,0), ROWCOL(0,1), ROWCOL(0,2) ),
+			Vector3(ROWCOL(1,0), ROWCOL(1,1), ROWCOL(1,2) ),
+			Vector3(ROWCOL(2,0), ROWCOL(2,1), ROWCOL(2,2) )
+	);
+	
+	#undef ROWCOL
+}
+
+Matrix3x3 operator * (const Matrix3x3 & a, const Matrix3D & b)
+{
+	#define ROWCOL(i,j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j]
+    
+	return Matrix3x3(
+			Vector3(ROWCOL(0,0), ROWCOL(0,1), ROWCOL(0,2) ),
+			Vector3(ROWCOL(1,0), ROWCOL(1,1), ROWCOL(1,2) ),
+			Vector3(ROWCOL(2,0), ROWCOL(2,1), ROWCOL(2,2) )
+	);
+	
+	#undef ROWCOL
+}
+
+
+#if 0
+
+void Matrix3x3::Compute_Jacobi_Rotation(int i,int j,Matrix3x3 * r,Matrix3x3 * rinv)
+{
+
+}
+
+void Matrix3x3::Symmetric_Eigen_Solve(void)
+{
+	Matrix3x3 eigen_vals = *this;
+	Matrix3x3 eigen_vecs(1);
+
+	Matrix3x3 jr,jrinv;
+
+	while (!done) {
+		eigen_vals.Compute_Jacobi_Rotation(i,j,&jr,&jrinv);
+		eigen_vals = jr * (eigenvals) * jrinv;
+		eigen_vecs = eigen_vecs * jr;
+	}
+
+	/*
+	** Done!  Eigen values are the diagonals of
+	** the eigen_vals matrix and the eigen vectors
+	** are the columns of the eigen_vecs matrix
+	*/
+
+}
+
+#endif
+
+
+void Matrix3x3::Multiply(const Matrix3x3 & A,const Matrix3x3 & B,Matrix3x3 * set_res)
+{
+	Matrix3x3 tmp;
+	Matrix3x3 * Aptr;
+	float tmp1,tmp2,tmp3;
+
+	// Check for aliased parameters, copy the 'A' matrix into a temporary if the 
+	// result is going into 'A'. (in this case, this function is no better than 
+	// the overloaded C++ operator...)
+	if (set_res == &A) {
+		tmp = A;
+		Aptr = &tmp;
+	} else {
+		Aptr = (Matrix3x3 *)&A;	
+	}
+
+	tmp1 = B[0][0];
+	tmp2 = B[1][0];
+	tmp3 = B[2][0];
+
+	(*set_res)[0][0] = (float)((*Aptr)[0][0]*tmp1 + (*Aptr)[0][1]*tmp2 + (*Aptr)[0][2]*tmp3);
+	(*set_res)[1][0] = (float)((*Aptr)[1][0]*tmp1 + (*Aptr)[1][1]*tmp2 + (*Aptr)[1][2]*tmp3);
+	(*set_res)[2][0] = (float)((*Aptr)[2][0]*tmp1 + (*Aptr)[2][1]*tmp2 + (*Aptr)[2][2]*tmp3);
+
+	tmp1 = B[0][1];
+	tmp2 = B[1][1];
+	tmp3 = B[2][1];
+
+	(*set_res)[0][1] = (float)((*Aptr)[0][0]*tmp1 + (*Aptr)[0][1]*tmp2 + (*Aptr)[0][2]*tmp3);
+	(*set_res)[1][1] = (float)((*Aptr)[1][0]*tmp1 + (*Aptr)[1][1]*tmp2 + (*Aptr)[1][2]*tmp3);
+	(*set_res)[2][1] = (float)((*Aptr)[2][0]*tmp1 + (*Aptr)[2][1]*tmp2 + (*Aptr)[2][2]*tmp3);
+
+	tmp1 = B[0][2];
+	tmp2 = B[1][2];
+	tmp3 = B[2][2];
+
+	(*set_res)[0][2] = (float)((*Aptr)[0][0]*tmp1 + (*Aptr)[0][1]*tmp2 + (*Aptr)[0][2]*tmp3);
+	(*set_res)[1][2] = (float)((*Aptr)[1][0]*tmp1 + (*Aptr)[1][1]*tmp2 + (*Aptr)[1][2]*tmp3);
+	(*set_res)[2][2] = (float)((*Aptr)[2][0]*tmp1 + (*Aptr)[2][1]*tmp2 + (*Aptr)[2][2]*tmp3);
+}
+
+int Matrix3x3::Is_Orthogonal(void) const
+{
+	Vector3 x(Row[0].X,Row[0].Y,Row[0].Z);
+	Vector3 y(Row[1].X,Row[1].Y,Row[1].Z);
+	Vector3 z(Row[2].X,Row[2].Y,Row[2].Z);
+	
+	if (Vector3::Dot_Product(x,y) > WWMATH_EPSILON) return 0;
+	if (Vector3::Dot_Product(y,z) > WWMATH_EPSILON) return 0;
+	if (Vector3::Dot_Product(z,x) > WWMATH_EPSILON) return 0;
+
+	if (WWMath::Fabs(x.Length() - 1.0f) > WWMATH_EPSILON) return 0;
+	if (WWMath::Fabs(y.Length() - 1.0f) > WWMATH_EPSILON) return 0;
+	if (WWMath::Fabs(z.Length() - 1.0f) > WWMATH_EPSILON) return 0;
+
+	return 1;
+}
+
+void Matrix3x3::Re_Orthogonalize(void)
+{
+	Vector3 x(Row[0][0],Row[0][1],Row[0][2]);
+	Vector3 y(Row[1][0],Row[1][1],Row[1][2]);
+	Vector3 z;
+
+	Vector3::Cross_Product(x,y,&z);
+	Vector3::Cross_Product(z,x,&y);
+
+	float len = x.Length();
+	if (len < WWMATH_EPSILON) {
+		Make_Identity();
+		return;
+	} else {
+		x /= len;
+	}
+
+	len = y.Length();
+	if (len < WWMATH_EPSILON) {
+		Make_Identity();
+		return;
+	} else {
+		y /= len;
+	}
+
+	len = z.Length();
+	if (len < WWMATH_EPSILON) {
+		Make_Identity();
+		return;
+	} else {
+		z /= len;
+	}
+
+	Row[0][0] = x.X;
+	Row[0][1] = x.Y;
+	Row[0][2] = x.Z;
+
+	Row[1][0] = y.X;
+	Row[1][1] = y.Y;
+	Row[1][2] = y.Z;
+	
+	Row[2][0] = z.X;
+	Row[2][1] = z.Y;
+	Row[2][2] = z.Z;
+}
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/matrix4.cpp

@@ -0,0 +1,197 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/matrix4.cpp                           $*
+ *                                                                                             *
+ *                   Org Author:: Greg_h                                                       *
+ *                                                                                             *
+ *                       Author : Kenny_m                                                      * 
+ *                                                                                             * 
+ *                     $Modtime:: 06/26/02 4:04p                                             $*
+ *                                                                                             *
+ *                    $Revision:: 6                                                           $*
+ *                                                                                             *
+ * 06/26/02 KM Matrix name change to avoid MAX conflicts                                       *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   Matrix4x4::Multiply -- Multiply two Matrix4x4's together                                      *
+ *   Matrix4x4::Multiply -- Multiply a Matrix3D * Matrix4x4                                        *
+ *   Matrix4x4::Multiply -- Multiply a Matrix4x4 * Matrix3D                                        *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "matrix4.h"
+#include <assert.h>
+
+/***********************************************************************************************
+ * Matrix4x4::Multiply -- Multiply two Matrix4x4's together                                        *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *  a - first operand                                                                          *
+ *  b - second operand                                                                         *
+ *  res - pointer to matrix to store the result in (must not point to a or b)                  *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/13/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+void Matrix4x4::Multiply(const Matrix4x4 &a,const Matrix4x4 &b,Matrix4x4 * res)
+{
+	assert(res != &a);
+	assert(res != &b);
+
+	#define ROWCOL(i,j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j] + a[i][3]*b[3][j]
+
+	(*res)[0][0] = ROWCOL(0,0);
+	(*res)[0][1] = ROWCOL(0,1);
+	(*res)[0][2] = ROWCOL(0,2);
+	(*res)[0][3] = ROWCOL(0,3);
+
+	(*res)[1][0] = ROWCOL(1,0);
+	(*res)[1][1] = ROWCOL(1,1);
+	(*res)[1][2] = ROWCOL(1,2);
+	(*res)[1][3] = ROWCOL(1,3);
+
+	(*res)[2][0] = ROWCOL(2,0);
+	(*res)[2][1] = ROWCOL(2,1);
+	(*res)[2][2] = ROWCOL(2,2);
+	(*res)[2][3] = ROWCOL(2,3);
+
+	(*res)[3][0] = ROWCOL(3,0);
+	(*res)[3][1] = ROWCOL(3,1);
+	(*res)[3][2] = ROWCOL(3,2);
+	(*res)[3][3] = ROWCOL(3,3);
+
+	#undef ROWCOL
+}
+
+
+/***********************************************************************************************
+ * Matrix4x4::Multiply -- Multiply a Matrix3D * Matrix4x4                                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/13/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+void Matrix4x4::Multiply(const Matrix3D &a,const Matrix4x4 &b,Matrix4x4 * res)
+{
+	assert(res != &b);
+
+	#define ROWCOL(i,j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j] + a[i][3]*b[3][j]
+
+	(*res)[0][0] = ROWCOL(0,0);
+	(*res)[0][1] = ROWCOL(0,1);
+	(*res)[0][2] = ROWCOL(0,2);
+	(*res)[0][3] = ROWCOL(0,3);
+
+	(*res)[1][0] = ROWCOL(1,0);
+	(*res)[1][1] = ROWCOL(1,1);
+	(*res)[1][2] = ROWCOL(1,2);
+	(*res)[1][3] = ROWCOL(1,3);
+
+	(*res)[2][0] = ROWCOL(2,0);
+	(*res)[2][1] = ROWCOL(2,1);
+	(*res)[2][2] = ROWCOL(2,2);
+	(*res)[2][3] = ROWCOL(2,3);
+
+	(*res)[3][0] = b[3][0];				// last row of a is 0,0,0,1
+	(*res)[3][1] = b[3][1];				// this leaves the last row of b unchanged
+	(*res)[3][2] = b[3][2];
+	(*res)[3][3] = b[3][3];
+
+	#undef ROWCOL
+}
+
+
+/***********************************************************************************************
+ * Matrix4x4::Multiply -- Multiply a Matrix4x4 * Matrix3D                                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *=============================================================================================*/
+void Matrix4x4::Multiply(const Matrix4x4 & a,const Matrix3D & b,Matrix4x4 * res)
+{
+	assert(res != &a);
+	
+	// ROWCOL multiplies a row of 'a' by one of the first three columns of 'b' (4th entry in b is zero)
+	// ROWCOL4 multiplies a row of 'a' by the fourth column of 'b' (4th entry in b is one)
+
+	#define ROWCOL(i,j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j]
+	#define ROWCOL4(i,j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j] + a[i][3]
+
+	(*res)[0][0] = ROWCOL(0,0);
+	(*res)[0][1] = ROWCOL(0,1);
+	(*res)[0][2] = ROWCOL(0,2);
+	(*res)[0][3] = ROWCOL4(0,3);
+
+	(*res)[1][0] = ROWCOL(1,0);
+	(*res)[1][1] = ROWCOL(1,1);
+	(*res)[1][2] = ROWCOL(1,2);
+	(*res)[1][3] = ROWCOL4(1,3);
+
+	(*res)[2][0] = ROWCOL(2,0);
+	(*res)[2][1] = ROWCOL(2,1);
+	(*res)[2][2] = ROWCOL(2,2);
+	(*res)[2][3] = ROWCOL4(2,3);
+
+	(*res)[3][0] = ROWCOL(3,0);
+	(*res)[3][1] = ROWCOL(3,1);
+	(*res)[3][2] = ROWCOL(3,2);
+	(*res)[3][3] = ROWCOL4(3,3);
+
+	#undef ROWCOL
+	#undef ROWCOL4
+}
+
+int operator == (const Matrix4x4 & a, const Matrix4x4 & b)
+{
+	unsigned* m1=(unsigned*)&a;
+	unsigned* m2=(unsigned*)&b;
+	unsigned res=0;
+	for (int i=0;i<4;++i) {
+		res|=*m1++^*m2++;
+		res|=*m1++^*m2++;
+		res|=*m1++^*m2++;
+		res|=*m1++^*m2++;
+	}
+	return !res;
+}
+
+int operator != (const Matrix4x4 & a, const Matrix4x4 & b)
+{
+	return (!(a == b));
+}
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/matrix4.h

@@ -0,0 +1,848 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /Commando/Code/wwmath/matrix4.h 20    10/04/01 10:33a Greg_h $ */
+/*********************************************************************************************** 
+ ***                            Confidential - Westwood Studios                              *** 
+ *********************************************************************************************** 
+ *                                                                                             * 
+ *                 Project Name : WW3D                                                         * 
+ *                                                                                             * 
+ *                    File Name : MATRIX4.H                                                    * 
+ *                                                                                             * 
+ *               Org Programmer : Greg Hjelstrom                                               * 
+ *                                                                                             * 
+ *                       Author : Kenny Mitchell                                               * 
+ *                                                                                             * 
+ *                   Start Date : 06/02/97                                                     * 
+ *                                                                                             * 
+ *                  Last Update : June 6, 2002 [KM]                                            * 
+ *                                                                                             * 
+ * 06/26/02 KM Matrix name change to avoid MAX conflicts                                       *
+ *---------------------------------------------------------------------------------------------* 
+ * Functions:                                                                                  * 
+ *   Matrix4x4::Matrix4x4 -- Constructor, optionally initialize to Identitiy matrix                * 
+ *   Matrix4x4::Matrix4x4 -- Copy Constructor                                                      * 
+ *   Matrix4x4::Matrix4x4 -- Convert a Matrix3D (fake 4x4) to a Matrix4x4                            * 
+ *   Matrix4x4::Matrix4x4 -- Constructor                                                           * 
+ *   Matrix4x4::Make_Identity -- Initializes the matrix to Identity                              *
+ *   Matrix4x4::Init -- Initializes from the contents of the give Matrix3D                       *
+ *   Matrix4x4::Init -- Initializes the rows from the given Vector4s                             *
+ *   Matrix4x4::Init -- Initializes the rows from the given 16 floats                            *
+ *   Matrix4x4::Init_Ortho -- Initialize to an orthographic projection matrix                    *
+ *   Matrix4x4::Init_Perspective -- Initialize to a perspective projection matrix                *
+ *   Matrix4x4::Init_Perspective -- Initialize to a perspective projection matrix                *
+ *   Matrix4x4::Transpose -- Returns transpose of the matrix                                     * 
+ *   Matrix4x4::Inverse -- returns the inverse of the matrix                                     * 
+ *   Matrix4x4::operator = -- assignment operator                                                * 
+ *   Matrix4x4::operator += -- "plus equals" operator                                            * 
+ *   Matrix4x4::operator -= -- "minus equals" operator                                            * 
+ *   Matrix4x4::operator *= -- "times equals" operator                                           * 
+ *   Matrix4x4::operator /= -- "divide equals" operator                                          * 
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+
+#ifndef MATRIX4_H
+#define MATRIX4_H
+
+#include "always.h"
+#include "vector4.h"
+#include "matrix3d.h"
+#include "matrix3.h"
+
+
+class Matrix4x4
+{
+public:
+
+	/*
+	** Constructors
+	*/
+	Matrix4x4(void) {};
+	Matrix4x4(const Matrix4x4 & m);
+
+	WWINLINE explicit Matrix4x4(bool identity);
+	WWINLINE explicit Matrix4x4(const Matrix3D & m);
+	WWINLINE explicit Matrix4x4(const Matrix3x3 & m);
+	WWINLINE explicit Matrix4x4(const Vector4 & v0, const Vector4 & v1, const Vector4 & v2, const Vector4 & v3);
+	WWINLINE explicit Matrix4x4(	float m11,float m12,float m13,float m14,
+										float m21,float m22,float m23,float m24,
+										float m31,float m32,float m33,float m34,  
+										float m41,float m42,float m43,float m44 ); 
+	
+	WWINLINE void		Make_Identity(void);
+	WWINLINE void		Init(const Matrix3D & m);
+	WWINLINE void		Init(const Matrix3x3 & m);
+	WWINLINE void		Init(const Vector4 & v0, const Vector4 & v1, const Vector4 & v2, const Vector4 & v3);
+	WWINLINE void		Init(	float m11,float m12,float m13,float m14,
+									float m21,float m22,float m23,float m24,
+									float m31,float m32,float m33,float m34,  
+									float m41,float m42,float m43,float m44 ); 
+
+	/*
+	** Projection matrices.  The znear and zfar parameters are positive values indicating the
+	** distance from the camera to the z clipping planes.  See implementations for more info.
+	*/
+	WWINLINE void		Init_Ortho(float left,float right,float bottom,float top,float znear,float zfar);
+	WWINLINE void		Init_Perspective(float hfov,float vfov,float znear,float zfar);
+	WWINLINE void		Init_Perspective(float left,float right,float bottom,float top,float znear,float zfar);
+
+	/*
+	** Access operators
+	*/
+	WWINLINE Vector4 & operator [] (int i) { return Row[i]; }
+	WWINLINE const Vector4 & operator [] (int i) const { return Row[i]; }
+
+	/*
+	** Transpose and Inverse
+	*/
+	WWINLINE Matrix4x4 Transpose(void) const;
+	WWINLINE Matrix4x4 Inverse(void) const;
+
+	/*
+	** Assignment operators
+	*/
+	WWINLINE Matrix4x4 & operator = (const Matrix4x4 & m);
+	WWINLINE Matrix4x4 & operator += (const Matrix4x4 & m);
+	WWINLINE Matrix4x4 & operator -= (const Matrix4x4 & m);
+	WWINLINE Matrix4x4 & operator *= (float d);
+	WWINLINE Matrix4x4 & operator /= (float d);
+
+	/*
+	** Negation
+	*/
+	WWINLINE friend Matrix4x4 operator - (const Matrix4x4& a);
+	
+	/*
+	** Scalar multiplication and division
+	*/
+	WWINLINE friend Matrix4x4 operator * (const Matrix4x4& a,float d);
+	WWINLINE friend Matrix4x4 operator * (float d,const Matrix4x4& a);
+	WWINLINE friend Matrix4x4 operator / (const Matrix4x4& a,float d);
+
+	/*
+	** matrix addition
+	*/ 
+	WWINLINE friend Matrix4x4 operator + (const Matrix4x4& a, const Matrix4x4& b);
+	WWINLINE friend Matrix4x4 Add(const Matrix4x4& a);
+
+	/*
+	** matrix subtraction
+	*/
+	WWINLINE friend Matrix4x4 operator - (const Matrix4x4 & a, const Matrix4x4 & b);
+	WWINLINE friend Matrix4x4 Subtract(const Matrix4x4 & a, const Matrix4x4 & b);
+
+	/*
+	** matrix multiplication
+	*/
+	WWINLINE friend Matrix4x4 operator * (const Matrix4x4 & a, const Matrix4x4 & b);
+	WWINLINE friend Matrix4x4 Multiply(const Matrix4x4 & a, const Matrix4x4 & b);
+	WWINLINE friend Matrix4x4 operator * (const Matrix4x4 & a, const Matrix3D & b);
+	WWINLINE friend Matrix4x4 operator * (const Matrix3D & a, const Matrix4x4 & b);
+
+	/*
+	** Comparison operators
+	*/
+	friend int operator == (const Matrix4x4 & a, const Matrix4x4 & b);
+	friend int operator != (const Matrix4x4 & a, const Matrix4x4 & b);
+
+	/*
+	** Swap two matrices in place
+	*/
+	WWINLINE friend void Swap(Matrix4x4 & a,Matrix4x4 & b);
+
+	/*
+	** Linear Transforms
+	*/
+	WWINLINE friend Vector4 operator * (const Matrix4x4 & a, const Vector4 & v);
+	WWINLINE friend Vector4 operator * (const Matrix4x4 & a, const Vector3 & v);
+
+	/*
+	** Matrix multiplication without temporaries...
+	*/
+	static void	Multiply(const Matrix4x4 &A,const Matrix4x4 &B,Matrix4x4 * set_result);
+	static void	Multiply(const Matrix3D &A,const Matrix4x4 &B,Matrix4x4 * set_result);
+	static void	Multiply(const Matrix4x4 &A,const Matrix3D &B,Matrix4x4 * set_result);
+
+	static WWINLINE void	Transform_Vector(const Matrix4x4 & tm,const Vector3 & in,Vector3 * out);
+	static WWINLINE void	Transform_Vector(const Matrix4x4 & tm,const Vector3 & in,Vector4 * out);
+	static WWINLINE void	Transform_Vector(const Matrix4x4 & tm,const Vector4 & in,Vector4 * out);
+
+protected:
+
+	Vector4 Row[4];
+
+};
+
+
+/*********************************************************************************************** 
+ * Matrix4x4::Matrix4x4 -- Constructor, optionally initialize to Identitiy matrix                  * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4::Matrix4x4(bool identity)
+{
+	if (identity) {
+		Make_Identity();
+	}
+}
+
+/*********************************************************************************************** 
+ * Matrix4x4::Matrix4x4 -- Copy Constructor                                                        * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4::Matrix4x4(const Matrix4x4 & m)
+{
+	Row[0] = m.Row[0]; Row[1] = m.Row[1]; Row[2] = m.Row[2]; Row[3] = m.Row[3]; 
+}
+
+/*********************************************************************************************** 
+ * Matrix4x4::Matrix4x4 -- Convert a Matrix3D (fake 4x4) to a Matrix4x4                              * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4::Matrix4x4(const Matrix3D & m)
+{
+	Init(m);
+}
+
+/*********************************************************************************************** 
+ * Matrix4x4::Matrix4x4 -- Constructor                                                             * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4::Matrix4x4(const Vector4 & r0, const Vector4 & r1, const Vector4 & r2, const Vector4 & r3)
+{ 
+	Init(r0,r1,r2,r3);
+}
+
+/*********************************************************************************************** 
+ * Matrix4x4::Matrix4x4 -- Constructor                                                             * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   11/06/2001 NH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4::Matrix4x4(float m11,float m12,float m13,float m14, float m21,float m22,float m23,float m24,
+	float m31,float m32,float m33,float m34, float m41,float m42,float m43,float m44 )
+{
+	Init(m11, m12, m13, m14, m21, m22, m23, m24, m31, m32, m33, m34, m41, m42, m43, m44);
+}
+
+/***********************************************************************************************
+ * Matrix4x4::Make_Identity -- Initializes the matrix to Identity                                *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/5/99    gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Matrix4x4::Make_Identity(void)
+{
+	Row[0].Set(1.0,0.0,0.0,0.0);
+	Row[1].Set(0.0,1.0,0.0,0.0);
+	Row[2].Set(0.0,0.0,1.0,0.0);
+	Row[3].Set(0.0,0.0,0.0,1.0);
+}
+
+
+/***********************************************************************************************
+ * Matrix4x4::Init -- Initializes from the contents of the give Matrix3D                         *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/5/99    gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Matrix4x4::Init(const Matrix3D & m)
+{
+	Row[0] = m[0]; Row[1] = m[1]; Row[2] = m[2]; Row[3] = Vector4(0.0,0.0,0.0,1.0); 
+}
+
+
+/***********************************************************************************************
+ * Matrix4x4::Init -- Initializes the rows from the given Vector4s                               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/5/99    gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Matrix4x4::Init(const Vector4 & r0, const Vector4 & r1, const Vector4 & r2, const Vector4 & r3)
+{
+	Row[0] = r0; Row[1] = r1; Row[2] = r2; Row[3] = r3; 
+}
+
+
+/***********************************************************************************************
+ * Matrix4x4::Init -- Initializes the rows from the given 16 floats                              *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/6/01    NH : Created.                                                                  *
+ *=============================================================================================*/
+WWINLINE void Matrix4x4::Init(float m11,float m12,float m13,float m14, float m21,float m22,float m23,float m24,
+	float m31,float m32,float m33,float m34, float m41,float m42,float m43,float m44)
+{
+	Row[0].Set(m11,m12,m13,m14);
+	Row[1].Set(m21,m22,m23,m24);
+	Row[2].Set(m31,m32,m33,m34);
+	Row[3].Set(m41,m42,m43,m44);
+}
+
+
+/***********************************************************************************************
+ * Matrix4x4::Init_Ortho -- Initialize to an orthographic projection matrix                      *
+ *                                                                                             *
+ * You can find the formulas for this in the appendix of the OpenGL programming guide.  Also   *
+ * this happens to be the same convention used by Surrender.                                   *
+ *                                                                                             *
+ * The result of this projection will be that points inside the volume will have all coords    *
+ * between -1 and +1.  A point at znear will project to z=-1.  A point at zfar will project    *
+ * to z=+1...                                                                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ * Note that the znear and zfar parameters are positive distances to the clipping planes       *
+ * even though in the camera coordinate system, the clipping planes are at negative z          *
+ * coordinates.  This holds for all of the projection initializations and is consistent        *
+ * with OpenGL's convention.                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/5/99    gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Matrix4x4::Init_Ortho
+(
+	float left,
+	float right,
+	float bottom,
+	float top,
+	float znear,
+	float zfar
+)
+{
+	assert(znear >= 0.0f);
+	assert(zfar > znear);
+
+	Make_Identity();
+	Row[0][0] = 2.0f / (right - left);
+	Row[0][3] = -(right + left) / (right - left);
+	Row[1][1] = 2.0f / (top - bottom);
+	Row[1][3] = -(top + bottom) / (top - bottom);
+	Row[2][2] = -2.0f / (zfar - znear);
+	Row[2][3] = -(zfar + znear) / (zfar - znear);
+}
+
+
+/***********************************************************************************************
+ * Matrix4x4::Init_Perspective -- Initialize to a perspective projection matrix                  *
+ *                                                                                             *
+ * You can find the formulas for this matrix in the appendix of the OpenGL programming guide.  *
+ * Also, this happens to be the same convention used by Surrender.                             *
+ *                                                                                             *
+ * The result of this projection will be that points inside the volume will have all coords    *
+ * between -1 and +1.  A point at znear will project to z=-1.  A point at zfar will project    *
+ * to z=+1...                                                                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ * hfov - horizontal field of view (in radians)                                                *
+ * vfov - vertical field of view (in radians)                                                  *
+ * znear - distance to near z clipping plane (positive)                                        *
+ * zfar - distance to the far z clipping plane (positive)                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ * Note that the znear and zfar parameters are positive distances to the clipping planes       *
+ * even though in the camera coordinate system, the clipping planes are at negative z          *
+ * coordinates.  This holds for all of the projection initializations and is consistent        *
+ * with OpenGL's convention.                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/5/99    gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Matrix4x4::Init_Perspective(float hfov,float vfov,float znear,float zfar)
+{
+	assert(znear > 0.0f);
+	assert(zfar > znear);
+
+	Make_Identity();
+	Row[0][0] = static_cast<float>(1.0 / tan(hfov*0.5));
+	Row[1][1] = static_cast<float>(1.0 / tan(vfov*0.5));
+	Row[2][2] = -(zfar + znear) / (zfar - znear);
+	Row[2][3] = static_cast<float>(-(2.0*zfar*znear) / (zfar - znear));
+	Row[3][2] = -1.0f;
+	Row[3][3] = 0.0f;
+}
+
+
+/***********************************************************************************************
+ * Matrix4x4::Init_Perspective -- Initialize to a perspective projection matrix                  *
+ *                                                                                             *
+ * You can find the formulas for this matrix in the appendix of the OpenGL programming guide.  *
+ * Also, this happens to be the same convention used by Surrender.                             *
+ *                                                                                             *
+ * The result of this projection will be that points inside the volume will have all coords    *
+ * between -1 and +1.  A point at znear will project to z=-1.  A point at zfar will project    *
+ * to z=+1...                                                                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * left - min x coordinate of near clip plane                                                  *
+ * right - max x coordinate of near clip plane                                                 *
+ * bottom - min y coordinate of near clip plane                                                *
+ * top - max y coordinate of near clip plane                                                   *
+ * znear - distance to near Z clipping plane                                                   *
+ * zfar - distance to far Z clipping plane                                                     *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ * Note that the znear and zfar parameters are positive distances to the clipping planes       *
+ * even though in the camera coordinate system, the clipping planes are at negative z          *
+ * coordinates.  This holds for all of the projection initializations and is consistent        *
+ * with OpenGL's convention.                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/5/99    gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Matrix4x4::Init_Perspective
+(
+	float left,
+	float right,
+	float bottom,
+	float top,
+	float znear,
+	float zfar
+)
+{
+	assert(znear > 0.0f);
+	assert(zfar > 0.0f);
+
+	Make_Identity();
+	Row[0][0] = static_cast<float>(2.0*znear / (right - left));
+	Row[0][2] = (right + left) / (right - left);
+	Row[1][1] = static_cast<float>(2.0*znear / (top - bottom));
+	Row[1][2] = (top + bottom) / (top - bottom);
+	Row[2][2] = -(zfar + znear) / (zfar - znear);
+	Row[2][3] = static_cast<float>(-(2.0*zfar*znear) / (zfar - znear));
+	Row[3][2] = -1.0f;
+	Row[3][3] = 0.0f;
+}
+
+/*********************************************************************************************** 
+ * Matrix4x4::Transpose -- Returns transpose of the matrix                                       * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4 Matrix4x4::Transpose() const
+{
+    return Matrix4x4(
+			Vector4(Row[0][0], Row[1][0], Row[2][0], Row[3][0]),
+			Vector4(Row[0][1], Row[1][1], Row[2][1], Row[3][1]),
+			Vector4(Row[0][2], Row[1][2], Row[2][2], Row[3][2]),
+			Vector4(Row[0][3], Row[1][3], Row[2][3], Row[3][3])
+	);
+}
+
+/*********************************************************************************************** 
+ * Matrix4x4::Inverse -- returns the inverse of the matrix                                       * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4 Matrix4x4::Inverse() const    // Gauss-Jordan elimination with partial pivoting
+{
+	WWASSERT_PRINT(0,"Matrix4x4::Inverse does not work, re-implement!");
+
+	Matrix4x4 a(*this);				// As a evolves from original mat into identity
+	Matrix4x4 b(true);				// b evolves from identity into inverse(a)
+	int i, j, i1;
+
+	// Loop over cols of a from left to right, eliminating above and below diagonal
+	for (j=0; j<4; j++) {
+
+		// Find largest pivot in column j among rows j..3
+		i1 = j;
+		for (i=j+1; i<4; i++) {
+			if (WWMath::Fabs(a[i][j]) > WWMath::Fabs(a[i1][j])) {
+				i1 = i;
+			}
+		}
+
+		// Swap rows i1 and j in a and b to put pivot on diagonal
+		Swap(a.Row[i1], a.Row[j]);
+		Swap(b.Row[i1], b.Row[j]);
+
+		// Scale row j to have a unit diagonal
+		if (a[j][j]==0.) {
+			//ALGEBRA_ERROR("Matrix4x4::inverse: singular matrix; can't invert\n");
+		}
+		b.Row[j] /= a.Row[j][j];
+		a.Row[j] /= a.Row[j][j];
+
+		// Eliminate off-diagonal elems in col j of a, doing identical ops to b
+		for (i=0; i<4; i++) {
+			if (i != j) {
+				b.Row[i] -= a[i][j] * b.Row[j];
+				a.Row[i] -= a[i][j] * a.Row[j];
+			}
+		}
+	}
+	return b;
+}
+
+/*********************************************************************************************** 
+ * Matrix4x4::operator = -- assignment operator                                                  * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4 & Matrix4x4::operator = (const Matrix4x4 & m)
+{
+	Row[0] = m.Row[0]; Row[1] = m.Row[1]; Row[2] = m.Row[2]; Row[3] = m.Row[3];
+	return *this; 
+}
+
+/*********************************************************************************************** 
+ * Matrix4x4::operator += -- "plus equals" operator                                              * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4& Matrix4x4::operator += (const Matrix4x4 & m)
+{
+	Row[0] += m.Row[0]; Row[1] += m.Row[1]; Row[2] += m.Row[2]; Row[3] += m.Row[3];
+	return *this; 
+}
+
+/*********************************************************************************************** 
+ * Matrix4x4::operator-= -- "minus equals" operator                                              * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4& Matrix4x4::operator -= (const Matrix4x4 & m)
+{
+	Row[0] -= m.Row[0]; Row[1] -= m.Row[1]; Row[2] -= m.Row[2]; Row[3] -= m.Row[3];
+	return *this; 
+}
+
+/*********************************************************************************************** 
+ * Matrix4x4::operator *= -- "times equals" operator                                             * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4& Matrix4x4::operator *= (float d)
+{
+	Row[0] *= d; Row[1] *= d; Row[2] *= d; Row[3] *= d;
+	return *this; 
+}
+
+/*********************************************************************************************** 
+ * Matrix4x4::operator /= -- "divide equals" operator                                            * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Matrix4x4& Matrix4x4::operator /= (float d)
+{
+	float ood = d;
+	Row[0] *= ood; Row[1] *= ood; Row[2] *= ood; Row[3] *= ood;
+	return *this; 
+}
+
+WWINLINE Matrix4x4 operator - (const Matrix4x4 & a)
+{ 
+	return Matrix4x4(-a.Row[0], -a.Row[1], -a.Row[2], -a.Row[3]); 
+}
+
+WWINLINE Matrix4x4 operator * (const Matrix4x4 & a, float d)
+{ 
+	return Matrix4x4(a.Row[0] * d, a.Row[1] * d, a.Row[2] * d, a.Row[3] * d); 
+}
+
+WWINLINE Matrix4x4 operator * (float d, const Matrix4x4 & a)
+{ 
+	return a*d; 
+}
+
+WWINLINE Matrix4x4 operator / (const Matrix4x4 & a, float d)
+{ 
+	float ood = 1.0f / d;
+	return Matrix4x4(a.Row[0] * ood, a.Row[1] * ood, a.Row[2] * ood, a.Row[3] * ood); 
+}
+
+/*
+** matrix addition
+*/ 
+WWINLINE Matrix4x4 operator + (const Matrix4x4 & a, const Matrix4x4 & b)
+{
+	return Matrix4x4(
+				a.Row[0] + b.Row[0],
+				a.Row[1] + b.Row[1],
+				a.Row[2] + b.Row[2],
+				a.Row[3] + b.Row[3]
+	);
+}
+
+WWINLINE Matrix4x4 Add(const Matrix4x4 & a, const Matrix4x4 & b)
+{ return a+b; }
+
+/*
+** matrix subtraction
+*/
+WWINLINE Matrix4x4 operator - (const Matrix4x4 & a, const Matrix4x4 & b)
+{
+	return Matrix4x4(
+				a.Row[0] - b.Row[0],
+				a.Row[1] - b.Row[1],
+				a.Row[2] - b.Row[2],
+				a.Row[3] - b.Row[3]
+	);
+}
+
+WWINLINE Matrix4x4 Subtract(const Matrix4x4 & a, const Matrix4x4 & b)
+{ return a-b; }
+
+/*
+** matrix multiplication
+*/
+WWINLINE Matrix4x4 operator * (const Matrix4x4 & a, const Matrix4x4 & b)
+{
+	#define ROWCOL(i, j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j] + a[i][3]*b[3][j]
+    
+	return Matrix4x4(
+		Vector4(ROWCOL(0,0), ROWCOL(0,1), ROWCOL(0,2), ROWCOL(0,3)),
+		Vector4(ROWCOL(1,0), ROWCOL(1,1), ROWCOL(1,2), ROWCOL(1,3)),
+		Vector4(ROWCOL(2,0), ROWCOL(2,1), ROWCOL(2,2), ROWCOL(2,3)),
+		Vector4(ROWCOL(3,0), ROWCOL(3,1), ROWCOL(3,2), ROWCOL(3,3))
+	);
+	
+	#undef ROWCOL
+}
+
+WWINLINE Matrix4x4 Multiply(const Matrix4x4 & a, const Matrix4x4 & b)
+{ return a*b; }
+
+WWINLINE Matrix4x4 operator * (const Matrix4x4 & a, const Matrix3D & b)
+{
+	// This function hand coded to handle the last row of b as 0,0,0,1
+	#define ROWCOL(i,j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j]
+	#define ROWCOL_LAST(i,j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j] + a[i][3]
+	return Matrix4x4(
+		Vector4(ROWCOL(0,0), ROWCOL(0,1), ROWCOL(0,2), ROWCOL_LAST(0,3)),
+		Vector4(ROWCOL(1,0), ROWCOL(1,1), ROWCOL(1,2), ROWCOL_LAST(1,3)),
+		Vector4(ROWCOL(2,0), ROWCOL(2,1), ROWCOL(2,2), ROWCOL_LAST(2,3)),
+		Vector4(ROWCOL(3,0), ROWCOL(3,1), ROWCOL(3,2), ROWCOL_LAST(3,3))
+	);
+	#undef ROWCOL
+	#undef ROWCOL_LAST
+}
+
+WWINLINE Matrix4x4 operator * (const Matrix3D & a, const Matrix4x4 & b)
+{
+	// This function hand coded to handle the last row of a as 0,0,0,1
+	#define ROWCOL(i,j) a[i][0]*b[0][j] + a[i][1]*b[1][j] + a[i][2]*b[2][j] + a[i][3]*b[3][j]
+	return Matrix4x4(
+		Vector4(ROWCOL(0,0), ROWCOL(0,1), ROWCOL(0,2), ROWCOL(0,3)),
+		Vector4(ROWCOL(1,0), ROWCOL(1,1), ROWCOL(1,2), ROWCOL(1,3)),
+		Vector4(ROWCOL(2,0), ROWCOL(2,1), ROWCOL(2,2), ROWCOL(2,3)),
+		Vector4(b[3][0], b[3][1], b[3][2], b[3][3])
+	);
+	#undef ROWCOL
+}
+
+/*
+** Multiply a Matrix4x4 by a Vector3 (assumes w=1.0!!!). Yeilds a Vector4 result
+*/
+WWINLINE Vector4 operator * (const Matrix4x4 & a, const Vector3 & v) {
+	return Vector4(
+		a[0][0] * v[0] + a[0][1] * v[1] + a[0][2] * v[2] + a[0][3] * 1.0f,
+		a[1][0] * v[0] + a[1][1] * v[1] + a[1][2] * v[2] + a[1][3] * 1.0f,
+		a[2][0] * v[0] + a[2][1] * v[1] + a[2][2] * v[2] + a[2][3] * 1.0f,
+		a[3][0] * v[0] + a[3][1] * v[1] + a[3][2] * v[2] + a[3][3] * 1.0f
+	);
+}
+
+/*
+** Multiply a Matrix4x4 by a Vector4
+*/
+WWINLINE Vector4 operator * (const Matrix4x4 & a, const Vector4 & v) {
+	return Vector4(
+		a[0][0] * v[0] + a[0][1] * v[1] + a[0][2] * v[2] + a[0][3] * v[3],
+		a[1][0] * v[0] + a[1][1] * v[1] + a[1][2] * v[2] + a[1][3] * v[3],
+		a[2][0] * v[0] + a[2][1] * v[1] + a[2][2] * v[2] + a[2][3] * v[3],
+		a[3][0] * v[0] + a[3][1] * v[1] + a[3][2] * v[2] + a[3][3] * v[3]
+	);
+}
+
+/*
+** Multiply a Matrix4x4 by a Vector4
+*/
+WWINLINE void Matrix4x4::Transform_Vector(const Matrix4x4 & A,const Vector3 & in,Vector3 * out)
+{
+	Vector3 tmp;
+	Vector3 * v;
+
+	// check for aliased parameters
+	if (out == &in) {
+		tmp = in;
+		v = &tmp;
+	} else {
+		v = (Vector3 *)&in;		// whats the right way to do this...
+	}
+
+	out->X = (A[0][0] * v->X + A[0][1] * v->Y + A[0][2] * v->Z + A[0][3]);
+	out->Y = (A[1][0] * v->X + A[1][1] * v->Y + A[1][2] * v->Z + A[1][3]);
+	out->Z = (A[2][0] * v->X + A[2][1] * v->Y + A[2][2] * v->Z + A[2][3]);
+}
+
+
+WWINLINE void Matrix4x4::Transform_Vector(const Matrix4x4 & A,const Vector3 & in,Vector4 * out)
+{
+	out->X = (A[0][0] * in.X + A[0][1] * in.Y + A[0][2] * in.Z + A[0][3]);
+	out->Y = (A[1][0] * in.X + A[1][1] * in.Y + A[1][2] * in.Z + A[1][3]);
+	out->Z = (A[2][0] * in.X + A[2][1] * in.Y + A[2][2] * in.Z + A[2][3]);
+	out->W = 1.0f;
+}
+
+WWINLINE void	Matrix4x4::Transform_Vector(const Matrix4x4 & A,const Vector4 & in,Vector4 * out)
+{
+	Vector4 tmp;
+	Vector4 * v;
+
+	// check for aliased parameters
+	if (out == &in) {
+		tmp = in;
+		v = &tmp;
+	} else {
+		v = (Vector4 *)&in;		// whats the right way to do this...
+	}
+
+	out->X = (A[0][0] * v->X + A[0][1] * v->Y + A[0][2] * v->Z + A[0][3] * v->W);
+	out->Y = (A[1][0] * v->X + A[1][1] * v->Y + A[1][2] * v->Z + A[1][3] * v->W);
+	out->Z = (A[2][0] * v->X + A[2][1] * v->Y + A[2][2] * v->Z + A[2][3] * v->W);
+	out->W = (A[3][0] * v->X + A[3][1] * v->Y + A[3][2] * v->Z + A[3][3] * v->W);
+}
+
+
+#endif /*MATRIX4_H*/

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/normalcone.h

@@ -0,0 +1,243 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : G                                                            *
+ *                                                                                             *
+ *                     $Archive:: /G/WWMath/normalcone.h                                      $*
+ *                                                                                             *
+ *                      $Author:: Eric_c                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 11/01/99 2:44p                                              $*
+ *                                                                                             *
+ *                    $Revision:: 8                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+/*
+**	The NormalCone is a class used to represent a cone of unit length. It can be used to 
+** loosely represent a collection of other normals allowing backface culling to be 
+** performed at a heirarchial level rather than at a triangle level.
+**
+**	The term 'NormalCone' is a bit of a misnomer; it is really a circular portion of a sphere.
+** -ehc
+*/
+
+#ifndef NORMALCONE_H
+#define NORMALCONE_H
+
+#include "vector3.h"
+#include "matrix3.h"
+
+class NormalCone : public Vector3
+{
+	public:
+
+		NormalCone() {}
+
+		NormalCone(const Vector3 & normal, float angle = 1.0f)
+		:	Vector3(normal),
+			Angle(angle)
+		{}
+
+		void Set(const Vector3 & normal, float angle = 1.0f)
+		{
+			Vector3::Set(normal);
+			Angle = angle;
+		}
+
+		void Set(const NormalCone & src)
+		{
+			Set(src, src.Angle);
+		}
+
+		// return true if this object has degenerated into a sphere.
+		inline bool Complete_Sphere()
+		{
+			return (Angle - WWMATH_EPSILON) <= -1.0f;
+		}
+
+		// find the two vectors on the edge of the cone residing on the same plane as the input vector.
+		// Note: these two Get_Coplanar functions return floats in an attempt to reduce float/int CPU state changes... 
+		inline float Get_Coplanar_Normals(const Vector3 & Input, Vector3 & Output1, Vector3 & Output2) const;
+
+		// find the two vectors on the edge of the cone residing on the same plane as the input vector and their dot products with the input.
+		inline float Get_Coplanar_Normals_And_Dots(const Vector3 & Input, Vector3 & Output1, Vector3 & Output2, float & dot1, float & dot2) const;
+
+		// evaluate the input vector, expanding the angle of the cone and recalculating the
+		// new center vector as needed.
+		inline void Merge(const Vector3 & Input);
+
+		// merge the input normal cone's coplanar normals with this object.
+		inline void Merge(const NormalCone & Input);
+
+		// this function returns the dot product between the input vector and the nearest coplanar normal
+		// contained by the cone.
+		// If the input vector is also contained by the cone, the result is always 1.0f.
+		// Note that in the case of a complete sphere, the nearest coplanar normal will be pointing in 
+		// the opposite direction of the input vector. 
+		inline float Smallest_Dot_Product(const Vector3 & Input);
+
+		// this value is the dot product of the edge of the cone and the center of the cone.
+		// A value of 1.0f indicates that it is a degenerate cone which is basically a cone with radius zero.
+		// A value of zero indicates the cone is actually hemisphere.
+		// A value of -1.0f indicates that it is a complete sphere.
+		float Angle;
+
+};
+
+
+// find the two vectors on the edge of the cone residing on the same plane as the input vector.
+inline float NormalCone::Get_Coplanar_Normals(const Vector3 & Input, Vector3 & Output1, Vector3 & Output2) const
+{
+	// get the cross product of the existing normal and the new one
+	Vector3 cross;
+	Vector3::Cross_Product(Input, *this, & cross);
+
+	float length = cross.Length2();
+	if(length < WWMATH_EPSILON) 
+		return 0.0f;
+	
+	length = sqrt(length);
+	cross /= length;
+
+	// Make a matrix3 which uses it as an axis of rotation and
+	// rotate this about that axis twice, once +Angle, once -Angle.
+	float radians = (1.0f - Angle) * WWMATH_PI * 0.5f;
+	Matrix3 m1(cross, radians);
+	Matrix3 m2(cross, -radians);
+
+	Matrix3::Rotate_Vector(m1, *this, & Output1);
+	Matrix3::Rotate_Vector(m2, *this, & Output2);
+
+	return length;
+}
+
+inline float NormalCone::Get_Coplanar_Normals_And_Dots(const Vector3 & Input, Vector3 & Output1, Vector3 & Output2, float & Dot1, float & Dot2) const
+{
+	float length = Get_Coplanar_Normals(Input, Output1, Output2);
+
+	if(length < WWMATH_EPSILON) 
+		return 0.0f;
+
+	// get the dot products of the new normal with the two coplanar normals and the current average
+	Dot1 = Vector3::Dot_Product(Input, Output1);
+	Dot2 = Vector3::Dot_Product(Input, Output2);
+	return length;
+}
+
+// evaluate the input vector, expanding the angle of the cone and recalculating the
+// new center vector as needed.
+inline void NormalCone::Merge(const Vector3 & Input)
+{
+	// early exit if this normal cone has already turned into a complete sphere.
+	if(Complete_Sphere()) 
+		return;
+
+	// get the dot of the new vector with the current center vector
+	float dot0 = Vector3::Dot_Product(Input, * this) + WWMATH_EPSILON;
+
+	// if the dot value is greater than the existing cone angle, then the new vector fits
+	// within the cone, so return.
+	if(dot0 >= Angle)
+		return;
+
+	// get the two normals found in the cone which are coplanar to the one passed to this function.
+	Vector3 normal1, normal2;
+	float dot1, dot2;
+	if(Get_Coplanar_Normals_And_Dots(Input, normal1, normal2, dot1, dot2) <= WWMATH_EPSILON)
+		return;
+
+	// test the case where the current average has a lower dot than either of the coplanar normals.
+	// If true, this means that the object now represents a complete sphere with normals facing every
+	// direction.
+	if((dot0 < dot1) && (dot0 < dot2))
+	{
+		Angle = -1;
+		return;
+	}
+
+	// the smaller of the dot values we have is going to indicate which of the two coplanar normals to use
+	// for averaging into the new center normal.
+	if(dot1 < dot2) 
+		Set(Input + normal1, dot1);
+	else
+		Set(Input + normal2, dot2);
+	
+	// if the angle is < 0, reverse the direction of the averaged normal since we have constructed
+	// something more like a sphere with a cone shape taken out of it (a negative cone).
+	if(Angle < WWMATH_EPSILON)
+		*this *= -1;
+
+	Normalize();
+}
+
+
+// merge the input normal cone's coplanar normals with this object.
+inline void NormalCone::Merge(const NormalCone & Input)
+{
+	Vector3 n1, n2;
+	
+	if(Input.Get_Coplanar_Normals(*this, n1,n2) >= WWMATH_EPSILON)
+	{
+		Merge(n1);
+		Merge(n2);
+	}
+}
+
+// this function returns the dot product between the input vector and the nearest coplanar normal
+// contained by the cone.
+// If the input vector is also contained by the cone, the result is always 1.0f.
+// Note that in the case of a complete sphere, the nearest coplanar normal will be pointing in 
+// the opposite direction of the input vector. 
+inline float NormalCone::Smallest_Dot_Product(const Vector3 & Input)
+{
+	if(Complete_Sphere())
+		return -1.0f;
+
+		// get the dot of the new vector with the current center vector
+	float dot0 = Vector3::Dot_Product(Input, * this);
+
+	// if the negative dot value is greater than the existing cone angle, then the new vector is
+	// parallel to one of the vectors contained in the cone but in negative
+	// direction, so return -1.0f
+	if(-dot0 + WWMATH_EPSILON >= Angle)
+		return -1.0f;
+
+	// if the dot value is greater than the existing cone angle, then the new vector is
+	// parallel to one of the vectors contained in the cone, so return 1.0f
+	if(dot0 + WWMATH_EPSILON >= Angle)
+		return 1.0f;
+
+	// get the two normals found in the cone which are coplanar to the one passed to this function.
+	Vector3 normal1, normal2;
+	float dot1, dot2;
+	Get_Coplanar_Normals_And_Dots(Input, normal1, normal2, dot1, dot2);
+
+	// return the smaller of the two dot products
+	if(dot1 < dot2)
+		return dot1;
+	return dot2;
+}
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/obbox.cpp

@@ -0,0 +1,791 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/obbox.cpp                             $*
+ *                                                                                             *
+ *                    Org Author:: Greg_h                                                       *
+ *                                                                                             *
+ *                       Author : Kenny Mitchell                                               * 
+ *                                                                                             * 
+ *                     $Modtime:: 06/26/02 4:04p                                             $*
+ *                                                                                             *
+ *                    $Revision:: 24                                                          $*
+ *                                                                                             *
+ * 06/26/02 KM Matrix name change to avoid MAX conflicts                                       *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   OBBoxClass::OBBoxClass -- Constructor that computes the box for a set of point            *
+ *   OBBoxClass::Init_From_Box_Points -- Create an OBBox from 8 corners of  a box              *
+ *   OBBoxClass::Init_Random -- initalize a random oriented box                                *
+ *   Oriented_Boxes_Intersect_On_Axis -- test if two boxes intersect on given axis             *
+ *   Oriented_Boxes_Intersect -- test if two oriented boxes intersect                          *
+ *   Oriented_Boxes_Collide_On_Axis -- test if two boxes collide on the given axis             *
+ *   Oriented_Boxes_Collide -- test if two oriented boxes collide                              *
+ *   Oriented_Box_Intersects_Tri_On_Axis -- tests if the box and tri intersect on the axis     *
+ *   Oriented_Box_Intersects_Tri -- tests if the given box and tri intersect                   *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "obbox.h"
+#include "matrix3.h"
+#include "vector3.h"
+#include "aabox.h"
+#include "tri.h"
+#include "plane.h"
+#include "quat.h"
+#include <assert.h>
+//#include <stdlib.h>
+
+
+/***********************************************************************************************
+ * OBBoxClass::OBBoxClass -- Constructor that computes the box for a set of points             *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/4/98     GTH : Created.                                                                 *
+ *=============================================================================================*/
+OBBoxClass::OBBoxClass(const Vector3 * /*points*/, int /*n*/)
+{
+	// TODO: IMPLEMENT THIS!!!
+	assert(0);
+
+#if 0	
+	int i;
+
+	// compute mean and covariances of points
+	float xsum = 0.0f, ysum = 0.0f, zsum = 0.0f;;
+	float xxsum = 0.0f, xysum = 0.0f, xzsum = 0.0f;
+	float yysum = 0.0f, yzsum = 0.0f, zzsum = 0.0f;
+
+	for (i = 0; i < n; i++)
+	{
+		xsum += points[i].X;
+		ysum += points[i].Y;
+		zsum += points[i].Z;
+
+		xxsum += points[i].X * points[i].X;
+		xysum += points[i].X * points[i].Y;
+		xzsum += points[i].X * points[i].Z;
+
+		yysum += points[i].Y * points[i].Y;
+		yzsum += points[i].Y * points[i].Z;
+		zzsum += points[i].Z * points[i].Z;
+	}
+
+	float xmean = xsum/n;
+	float ymean = ysum/n;
+	float zmean = zsum/n;
+	float xxcov = xxsum/n - xmean*xmean;
+	float xycov = xysum/n - xmean*ymean;
+	float xzcov = xzsum/n - xmean*zmean;
+	float yycov = yysum/n - ymean*ymean;
+	float yzcov = yzsum/n - ymean*zmean;
+	float zzcov = zzsum/n - zmean*zmean;
+
+	// compute eigenvectors for covariance matrix,
+	// these will be the axes.
+	mgcEigen eig(3);
+	eig.Matrix(0,0) = xxcov;
+	eig.Matrix(0,1) = xycov;
+	eig.Matrix(0,2) = xzcov;
+	eig.Matrix(1,0) = xycov;
+	eig.Matrix(1,1) = yycov;
+	eig.Matrix(1,2) = yzcov;
+	eig.Matrix(2,0) = xzcov;
+	eig.Matrix(2,1) = yzcov;
+	eig.Matrix(2,2) = zzcov;
+
+	eig.EigenStuff3();
+	Point3 U =
+	{
+		eig.Eigenvector(0,0),
+		eig.Eigenvector(1,0),
+		eig.Eigenvector(2,0)
+	};
+	Point3 V =
+	{
+		eig.Eigenvector(0,1),
+		eig.Eigenvector(1,1),
+		eig.Eigenvector(2,1)
+	};
+	Point3 W =
+	{
+		eig.Eigenvector(0,2),
+		eig.Eigenvector(1,2),
+		eig.Eigenvector(2,2)
+	};
+
+	// box center is the mean of the distribution
+	box.center.x = xmean;
+	box.center.y = ymean;
+	box.center.z = zmean;
+
+
+	// Box axes are the eigenvectors of the covariance matrix with
+	// adjusted lengths to enclose the points.  If U, V, and W are the
+	// eigenvectors, C is the center of the box, and X is a point in
+	// the input list, then X = C + a*U + b*V + c*W.  The box extent is
+	// determined by max|a|, max|b|, and max|c|.  The box axes are then
+	// defined to be (max|a|)*U and (max|b|)*V.  Note that since U and V
+	// are unit length and orthogonal, a = Dot(U,X-C), b = Dot(V,X-C),
+	// and c = Dot(W,X-C).
+	float amax = 0.0f, bmax = 0.0f, cmax = 0.0f;
+	for (i = 0; i < n; i++)
+	{
+		float dx = pt[i].x - box.center.x;
+		float dy = pt[i].y - box.center.y;
+		float dz = pt[i].z - box.center.z;
+		float absdot = float(WWMath::Fabs(U.x*dx+U.y*dy+U.z*dz));
+		if ( absdot > amax )
+			amax = absdot;
+		absdot = float(WWMath::Fabs(V.x*dx+V.y*dy+V.z*dz));
+		if ( absdot > bmax )
+			bmax = absdot;
+		absdot = float(WWMath::Fabs(W.x*dx+W.y*dy+W.z*dz));
+		if ( absdot > cmax )
+			cmax = absdot;
+	}
+
+	box.axis[0].x = amax*U.x;
+	box.axis[0].y = amax*U.y;
+	box.axis[0].z = amax*U.z;
+	box.axis[1].x = bmax*V.x;
+	box.axis[1].y = bmax*V.y;
+	box.axis[1].z = bmax*V.z;
+	box.axis[2].x = cmax*W.x;
+	box.axis[2].y = cmax*W.y;
+	box.axis[2].z = cmax*W.z;
+
+#endif
+}
+
+/***********************************************************************************************
+ * OBBoxClass::Init_From_Box_Points -- Create an OBBox from 8 corners of  a box                *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/24/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+void OBBoxClass::Init_From_Box_Points(Vector3 * points,int num)
+{
+	int i,j;
+
+	/*
+	** This function assumes that you pass in 8 points which are the
+	** corners of a rectangular solid.  Bad things will happen if
+	** this assumption is not true!!!!
+	*/
+	assert(num == 8);
+	
+	/*
+	** Just pick the first point as the preliminary center.  Compute
+	** vectors from this point to each of the other points
+	*/
+	Vector3 dp[8];
+	for (i=1;i<num;i++) {
+		dp[i] = points[i] - points[0];
+	}
+
+	/*
+	** Find the shortest two candidate axes.  Then the 
+	** third axis will be the cross product of these two.
+	*/
+	for (i=1;i<num;i++) {
+		for (j=i+1;j<num;j++) {
+			if (dp[j].Length2() < dp[i].Length2()) {
+				Swap(dp[j],dp[i]);
+			}
+		}
+	}
+
+	Vector3 axis0,axis1,axis2;
+#ifdef ALLOW_TEMPORARIES
+	axis0 = Normalize(dp[1]);
+	axis1 = Normalize(dp[2]);
+#else
+	axis0 = dp[1]; axis0.Normalize();
+	axis1 = dp[2]; axis1.Normalize();
+#endif
+	Vector3::Cross_Product(axis0,axis1,&axis2);
+
+	Basis = Matrix3x3(axis0,axis1,axis2);
+
+	/*
+	** Center is the average of all of the points
+	*/
+	Center.Set(0,0,0);
+	for (i=0; i<num; i++) {
+		Center += points[i];
+	}
+	Center.X /= num;
+	Center.Y /= num;
+	Center.Z /= num;
+
+	/*
+	** Compute extents along the computed axes.  This is done
+	** by projecting each point onto the three axes and keeping
+	** the largest projection on each.
+	*/
+	Extent.Set(0,0,0);
+
+	for (i=0; i<num; i++) {
+		float dx = points[i].X - Center.X;
+		float dy = points[i].Y - Center.Y;
+		float dz = points[i].Z - Center.Z;
+
+		float xprj = float(WWMath::Fabs(axis0.X * dx + axis0.Y * dy + axis0.Z * dz));
+		if (xprj > Extent.X) Extent.X = xprj;
+
+		float yprj = float(WWMath::Fabs(axis1.X * dx + axis1.Y * dy + axis1.Z * dz));
+		if (yprj > Extent.Y) Extent.Y = yprj;
+
+		float zprj = float(WWMath::Fabs(axis2.X * dx + axis2.Y * dy + axis2.Z * dz));
+		if (zprj > Extent.Z) Extent.Z = zprj;
+	}
+}
+
+
+/***********************************************************************************************
+ * OBBoxClass::Init_Random -- initalize a random oriented box                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/21/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+void OBBoxClass::Init_Random(float min_extent,float max_extent)
+{
+	Center.Set(0,0,0);
+	
+	Extent.X = min_extent + WWMath::Random_Float() * (max_extent - min_extent);
+	Extent.Y = min_extent + WWMath::Random_Float() * (max_extent - min_extent);
+	Extent.Z = min_extent + WWMath::Random_Float() * (max_extent - min_extent);
+
+	Quaternion orient;
+	orient.X = WWMath::Random_Float();
+	orient.Y = WWMath::Random_Float();
+	orient.Z = WWMath::Random_Float();
+	orient.W = WWMath::Random_Float();
+	orient.Normalize();
+
+	Basis = Build_Matrix3(orient);
+}
+
+
+
+
+/***********************************************************************************************
+ * Oriented_Boxes_Intersect_On_Axis -- test if two boxes intersect on given axis               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/7/99     GTH : Created.                                                                 *
+ *=============================================================================================*/
+bool Oriented_Boxes_Intersect_On_Axis
+(
+	const OBBoxClass & box0,
+	const OBBoxClass & box1,
+	const Vector3 & axis
+)
+{
+	float ra,rb,rsum;
+
+	if (axis.Length2() < WWMATH_EPSILON) return true;
+
+	ra = box0.Project_To_Axis(axis);
+	rb = box1.Project_To_Axis(axis);
+	rsum = WWMath::Fabs(ra) + WWMath::Fabs(rb);
+
+	// project the center distance onto the line:
+	Vector3 C = box1.Center - box0.Center;
+	float cdist = Vector3::Dot_Product(axis,C);
+
+	if ((cdist > rsum) || (cdist < -rsum)) {
+		return false;
+	}
+	return true;
+}
+
+
+/***********************************************************************************************
+ * Oriented_Boxes_Intersect -- test if two oriented boxes intersect                            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/7/99     GTH : Created.                                                                 *
+ *=============================================================================================*/
+bool Oriented_Boxes_Intersect
+(
+	const OBBoxClass & box0,
+	const OBBoxClass & box1
+)
+{
+	Vector3 axis;
+	Vector3 A[3],B[3];
+
+	// vectors for the axis directions of the two boxes in world space
+	A[0].Set(box0.Basis[0][0],box0.Basis[1][0],box0.Basis[2][0]);
+	A[1].Set(box0.Basis[0][1],box0.Basis[1][1],box0.Basis[2][1]);
+	A[2].Set(box0.Basis[0][2],box0.Basis[1][2],box0.Basis[2][2]);
+
+	B[0].Set(box1.Basis[0][0],box1.Basis[1][0],box1.Basis[2][0]);
+	B[1].Set(box1.Basis[0][1],box1.Basis[1][1],box1.Basis[2][1]);
+	B[2].Set(box1.Basis[0][2],box1.Basis[1][2],box1.Basis[2][2]);
+
+	/////////////////////////////////////////////////////////////////////////
+	// Projecting the two boxes onto Box0's X axis.  If their intervals
+	// on this line do not intersect, the boxes are not intersecting.
+	// Each of the tests in this function work in a similar way.
+	/////////////////////////////////////////////////////////////////////////
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,A[0])) return false;
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,A[1])) return false;
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,A[2])) return false;
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,B[0])) return false;
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,B[1])) return false;
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,B[2])) return false;
+
+	/////////////////////////////////////////////////////////////////////////
+	// None of the aligned axes turned out to be separating axes.  Now
+	// we check all combinations of cross products of the two boxes axes.
+	/////////////////////////////////////////////////////////////////////////
+	Vector3::Cross_Product(A[0],B[0],&axis);
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,axis)) return false;
+
+	Vector3::Cross_Product(A[0],B[1],&axis);
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,axis)) return false;
+
+	Vector3::Cross_Product(A[0],B[2],&axis);
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,axis)) return false;
+
+	Vector3::Cross_Product(A[1],B[0],&axis);
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,axis)) return false;
+
+	Vector3::Cross_Product(A[1],B[1],&axis);
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,axis)) return false;
+
+	Vector3::Cross_Product(A[1],B[2],&axis);
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,axis)) return false;
+
+	Vector3::Cross_Product(A[2],B[0],&axis);
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,axis)) return false;
+
+	Vector3::Cross_Product(A[2],B[1],&axis);
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,axis)) return false;
+
+	Vector3::Cross_Product(A[2],B[2],&axis);
+	if (!Oriented_Boxes_Intersect_On_Axis(box0,box1,axis)) return false;
+	
+	// None of the above tests separated the two boxes, so they are intersecting
+	return true;
+}
+
+
+
+
+
+/***********************************************************************************************
+ * Oriented_Boxes_Collide_On_Axis -- test if two boxes collide on the given axis               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/7/99     GTH : Created.                                                                 *
+ *=============================================================================================*/
+bool Oriented_Boxes_Collide_On_Axis
+(
+	const OBBoxClass & box0,
+	const Vector3 & v0,
+	const OBBoxClass & box1,
+	const Vector3 & v1,
+	const Vector3 & axis,
+	float dt
+)
+{
+	float ra,rb,rsum;
+
+	if (axis.Length2() < WWMATH_EPSILON) return true;
+
+	ra = box0.Project_To_Axis(axis);
+	rb = box1.Project_To_Axis(axis);
+	rsum = WWMath::Fabs(ra) + WWMath::Fabs(rb);
+
+	// project the center distance onto the line:
+	Vector3 C = box1.Center - box0.Center;
+	Vector3 V = v1 - v0;
+
+	float cdist = Vector3::Dot_Product(axis,C);
+	float vdist = cdist + dt * Vector3::Dot_Product(axis,V);
+
+	if ((cdist > rsum && vdist > rsum) || (cdist < -rsum && vdist < -rsum)) {
+		return false;
+	}
+	return true;
+}
+
+
+/***********************************************************************************************
+ * Oriented_Boxes_Collide -- test if two oriented boxes collide                                *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/7/99     GTH : Created.                                                                 *
+ *=============================================================================================*/
+bool Oriented_Boxes_Collide
+(
+	const OBBoxClass & box0,
+	const Vector3 & v0,
+	const OBBoxClass & box1,
+	const Vector3 & v1,
+	float dt
+)
+{
+	bool intersect = true;
+
+	// variables for holding the separating axis and the projected distances
+	Vector3 SepAxis;
+
+	// vectors for the axis directions of the two boxes in world space
+	Vector3 A0(box0.Basis[0][0],box0.Basis[1][0],box0.Basis[2][0]);
+	Vector3 A1(box0.Basis[0][1],box0.Basis[1][1],box0.Basis[2][1]);
+	Vector3 A2(box0.Basis[0][2],box0.Basis[1][2],box0.Basis[2][2]);
+
+	Vector3 B0(box1.Basis[0][0],box1.Basis[1][0],box1.Basis[2][0]);
+	Vector3 B1(box1.Basis[0][1],box1.Basis[1][1],box1.Basis[2][1]);
+	Vector3 B2(box1.Basis[0][2],box1.Basis[1][2],box1.Basis[2][2]);
+
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A0
+	// 
+	// Projecting the two boxes onto Box0's X axis.  If their intervals
+	// on this line do not intersect, the boxes are not intersecting!
+	// Each of the tests in this function work in a similar way.
+	/////////////////////////////////////////////////////////////////////////
+	SepAxis = A0;
+
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A1
+	// Separating Axis is Box0's Y axis
+	/////////////////////////////////////////////////////////////////////////
+	SepAxis = A1;
+
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A2
+	// Separating Axis is Box0's Z axis
+	/////////////////////////////////////////////////////////////////////////
+	SepAxis = A2;
+
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = B0
+	// Separating Axis is Box1's X axis
+	/////////////////////////////////////////////////////////////////////////
+	SepAxis = B0;
+
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = B1
+	// Separating Axis is Box1's Y axis
+	/////////////////////////////////////////////////////////////////////////
+	SepAxis = B1;
+
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = B2
+	// Separating Axis is Box1's Z axis
+	/////////////////////////////////////////////////////////////////////////
+	SepAxis = B2;
+
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// None of the aligned axes turned out to be separating axes.  Now
+	// we check all combinations of cross products of the two boxes axes.
+	/////////////////////////////////////////////////////////////////////////
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A0xB0
+	/////////////////////////////////////////////////////////////////////////
+	Vector3::Cross_Product(A0,B0,&SepAxis);
+
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A0xB1
+	/////////////////////////////////////////////////////////////////////////
+	Vector3::Cross_Product(A0,B1,&SepAxis);
+	
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A0xB2
+	/////////////////////////////////////////////////////////////////////////
+	Vector3::Cross_Product(A0,B2,&SepAxis);
+	
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A1xB0
+	/////////////////////////////////////////////////////////////////////////
+	Vector3::Cross_Product(A1,B0,&SepAxis);
+	
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A1xB1
+	/////////////////////////////////////////////////////////////////////////
+	Vector3::Cross_Product(A1,B1,&SepAxis);
+	
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A1xB2
+	/////////////////////////////////////////////////////////////////////////
+	Vector3::Cross_Product(A1,B2,&SepAxis);
+	
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A2xB0
+	/////////////////////////////////////////////////////////////////////////
+	Vector3::Cross_Product(A2,B0,&SepAxis);
+	
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A2xB1
+	/////////////////////////////////////////////////////////////////////////
+	Vector3::Cross_Product(A2,B1,&SepAxis);
+	
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+	/////////////////////////////////////////////////////////////////////////
+	// L = A2xB2
+	/////////////////////////////////////////////////////////////////////////
+	Vector3::Cross_Product(A2,B2,&SepAxis);
+	
+	if (!Oriented_Boxes_Collide_On_Axis(box0,v0,box1,v1,SepAxis,dt)) {
+		intersect = false;
+		goto exit;
+	}
+
+exit:
+
+	return intersect;
+}
+
+
+
+/***********************************************************************************************
+ * Oriented_Box_Intersects_Tri_On_Axis -- tests if the box and tri intersect on the axis       *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/7/99     GTH : Created.                                                                 *
+ *=============================================================================================*/
+bool Oriented_Box_Intersects_Tri_On_Axis(const OBBoxClass & box,const TriClass & tri,Vector3 & axis)
+{
+	float leb;		// leading edge of box (farthest point from center)
+	float lep;		// leading edge of poly (closest point to center)
+	float dist;		// distance from box center to v0
+	float tmp;
+
+	if (axis.Length2() < WWMATH_EPSILON) return true;
+	
+	Vector3 D = *(tri.V[0]) - box.Center;
+	Vector3 r1 = *(tri.V[1]) - *(tri.V[0]);
+	Vector3 r2 = *(tri.V[2]) - *(tri.V[0]);
+	
+	// I want the axis to point from box.center to tri.v0
+	dist = Vector3::Dot_Product(D,axis);
+	if (dist < 0) {		
+		dist = -dist;
+		axis = -axis;
+	}
+
+	// compute leading edge of the box
+	leb = box.Project_To_Axis(axis);
+
+	// compute the leading edge of the triangle
+	lep = 0;
+	tmp = Vector3::Dot_Product(r1,axis); if (tmp < lep) lep = tmp;
+	tmp = Vector3::Dot_Product(r2,axis); if (tmp < lep) lep = tmp;
+	lep += dist;	
+
+	if (lep >= leb) {
+		return false;
+	} else {
+		return true;
+	}
+}
+
+
+/***********************************************************************************************
+ * Oriented_Box_Intersects_Tri -- tests if the given box and tri intersect                     *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/7/99     GTH : Created.                                                                 *
+ *=============================================================================================*/
+bool Oriented_Box_Intersects_Tri(const OBBoxClass & box,const TriClass & tri)
+{
+	Vector3 axis;
+
+	// vectors for the axis directions of the two boxes in world space
+	Vector3 A[3];
+	Vector3 E[3];
+	Vector3 normal = *tri.N;
+	A[0].Set(box.Basis[0][0],box.Basis[1][0],box.Basis[2][0]);
+	A[1].Set(box.Basis[0][1],box.Basis[1][1],box.Basis[2][1]);
+	A[2].Set(box.Basis[0][2],box.Basis[1][2],box.Basis[2][2]);
+	E[0] = *(tri.V[1]) - *(tri.V[0]);
+	E[1] = *(tri.V[2]) - *(tri.V[1]);
+	E[2] = *(tri.V[0]) - *(tri.V[2]);
+
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,normal)) return false;
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,A[0])) return false;
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,A[1])) return false;
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,A[2])) return false;
+
+	Vector3::Cross_Product(A[0],E[0],&axis);
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,axis)) return false;
+
+	Vector3::Cross_Product(A[0],E[1],&axis);
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,axis)) return false;
+		
+	Vector3::Cross_Product(A[0],E[2],&axis);
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,axis)) return false;
+
+	Vector3::Cross_Product(A[1],E[0],&axis);
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,axis)) return false;
+
+	Vector3::Cross_Product(A[1],E[1],&axis);
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,axis)) return false;
+		
+	Vector3::Cross_Product(A[1],E[2],&axis);
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,axis)) return false;
+
+	Vector3::Cross_Product(A[2],E[0],&axis);
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,axis)) return false;
+
+	Vector3::Cross_Product(A[2],E[1],&axis);
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,axis)) return false;
+		
+	Vector3::Cross_Product(A[2],E[2],&axis);
+	if (!Oriented_Box_Intersects_Tri_On_Axis(box,tri,axis)) return false;
+
+	return true;
+}

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/obbox.h

@@ -0,0 +1,271 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : wwmath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/obbox.h                               $*
+ *                                                                                             *
+ *                    Org Author:: Greg_h                                                       *
+ *                                                                                             *
+ *                       Author : Kenny Mitchell                                               * 
+ *                                                                                             *
+ *                     $Modtime:: 06/26/02 4:04p                                             $*
+ *                                                                                             *
+ *                    $Revision:: 24                                                          $*
+ *                                                                                             *
+ * 06/26/02 KM Matrix name change to avoid MAX conflicts                                       *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   OBBoxClass::Transform -- transform an oriented box                                        *
+ *   OBBoxClass::Project_To_Axis -- compute projection onto the given axis                     *
+ *   OBBoxClass::Compute_Point -- computes position of a parametricly defined point            *
+ *   OBBoxClass::Compute_Axis_Aligned_Extent -- computes extent of an AABox enclosing this box *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef OBBOX_H
+#define OBBOX_H
+
+#include "always.h"
+#include "vector3.h"
+#include "matrix3.h"
+#include "matrix3d.h"
+#include "wwmath.h"
+#include "castres.h"
+
+class TriClass;
+class AABoxClass;
+class PlaneClass;
+
+
+/*
+** OBBoxClass
+**
+** Oriented-Bounding-Box Class.
+** This is a collision box in world space.  
+** Center - position of the center of the box
+** Extents - size of the box
+** Basis - rotation matrix defining the orientation of the box
+**
+** To find the world space coordinates of the "+x,+y,+z" corner of 
+** the bounding box you could use this equation:
+** Vector3 corner = Center + Basis * Extent;
+*/
+class OBBoxClass
+{
+public:
+
+	OBBoxClass(void) { }
+
+	OBBoxClass(const OBBoxClass & that) :
+		Basis(that.Basis),
+		Center(that.Center),
+		Extent(that.Extent)
+	{ }
+
+	OBBoxClass(const Vector3 & center,const Vector3 & extent) : 
+		Basis(1),
+		Center(center),
+		Extent(extent)
+	{ }
+	
+	OBBoxClass(const Vector3 & center,const Vector3 & extent,const Matrix3x3 & basis) :
+		Basis(basis),
+		Center(center),
+		Extent(extent)
+	{ }
+
+	OBBoxClass(const Vector3 * points, int num_points);
+
+	bool operator== (const OBBoxClass &src);
+	bool operator!= (const OBBoxClass &src);
+
+	void		Init_From_Box_Points(Vector3 * points,int num_points);
+	void		Init_Random(float min_extent = 0.5f,float max_extent = 1.0f);
+	float		Project_To_Axis(const Vector3 & axis) const;
+	float		Volume(void) const { return 2.0*Extent.X * 2.0*Extent.Y * 2.0*Extent.Z; }
+	void		Compute_Point(float params[3],Vector3 * set_point) const;
+	void		Compute_Axis_Aligned_Extent(Vector3 * set_extent) const;
+
+	Matrix3x3	Basis;
+	Vector3		Center;
+	Vector3		Extent;
+
+	static void	Transform(const Matrix3D & tm,const OBBoxClass & in,OBBoxClass * out);
+};
+
+// Test functions: slow, easy to understand version of box intersection code :)
+bool Oriented_Boxes_Intersect(const OBBoxClass & box0,const OBBoxClass & box1);
+bool Oriented_Boxes_Collide(const OBBoxClass & box0,const Vector3 & v0,const OBBoxClass & box1,const Vector3 & v1,float dt);
+bool Oriented_Box_Intersects_Tri(const OBBoxClass & box,const TriClass & tri);
+
+
+/***********************************************************************************************
+ * OBBoxClass::Project_To_Axis -- compute projection onto the given axis                       *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/24/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline float OBBoxClass::Project_To_Axis(const Vector3 & axis) const
+{
+	float x = Extent[0] * Vector3::Dot_Product(axis,Vector3(Basis[0][0],Basis[1][0],Basis[2][0]));
+	float y = Extent[1] * Vector3::Dot_Product(axis,Vector3(Basis[0][1],Basis[1][1],Basis[2][1]));
+	float z = Extent[2] * Vector3::Dot_Product(axis,Vector3(Basis[0][2],Basis[1][2],Basis[2][2]));
+
+	// projection is the sum of the absolute values of the projections of the three extents
+	return (WWMath::Fabs(x) + WWMath::Fabs(y) + WWMath::Fabs(z));
+}
+
+
+/***********************************************************************************************
+ * OBBoxClass::Transform -- transform an oriented box                                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/24/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline void OBBoxClass::Transform
+(
+	const Matrix3D &		tm,
+	const OBBoxClass &	in,
+	OBBoxClass *			out
+)
+{
+	WWASSERT(out);
+	WWASSERT(out!=&in);
+
+	out->Extent = in.Extent;
+	Matrix3D::Transform_Vector(tm,in.Center,&(out->Center));
+	Matrix3x3::Multiply(tm,in.Basis,&(out->Basis));
+}
+
+
+/***********************************************************************************************
+ * OBBoxClass::Compute_Point -- computes position of a parametricly defined point              *
+ *                                                                                             *
+ * set_point = Center + params[0]*A0 + params[1]*A1 + params[2]*A2                             *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ * params - parametric description of a point in the box.  -1 < params[i] < 1                  *
+ * set_point - pointer to a Vector3 to set.                                                    *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/2/99     GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline void OBBoxClass::Compute_Point(float params[3],Vector3 * set_point) const
+{
+	Vector3 point = Extent;
+	point.X *= params[0];
+	point.Y *= params[1];
+	point.Z *= params[2];
+
+	Matrix3x3::Rotate_Vector(Basis,point,set_point);
+	Vector3::Add(Center,*set_point,set_point);
+}
+
+
+/***********************************************************************************************
+ * OBBoxClass::Compute_Axis_Aligned_Extent -- computes extent of an AABox enclosing this box   *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ * set_extent - pointer to a Vector3 to put the result into                                    *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/15/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+inline void OBBoxClass::Compute_Axis_Aligned_Extent(Vector3 * set_extent) const
+{
+	WWASSERT(set_extent != NULL);
+
+	// x extent is the box projected onto the x axis
+	set_extent->X =	WWMath::Fabs(Extent[0] * Basis[0][0]) +
+							WWMath::Fabs(Extent[1] * Basis[0][1]) +	
+							WWMath::Fabs(Extent[2] * Basis[0][2]);
+	
+	set_extent->Y =	WWMath::Fabs(Extent[0] * Basis[1][0]) +
+							WWMath::Fabs(Extent[1] * Basis[1][1]) +	
+							WWMath::Fabs(Extent[2] * Basis[1][2]);
+
+	set_extent->Z =	WWMath::Fabs(Extent[0] * Basis[2][0]) +
+							WWMath::Fabs(Extent[1] * Basis[2][1]) +	
+							WWMath::Fabs(Extent[2] * Basis[2][2]);
+}
+
+
+/***********************************************************************************************
+ * OBBoxClass::operator== -- Comparison operator                                               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   6/21/00    PDS : Created.                                                                 *
+ *=============================================================================================*/
+inline bool OBBoxClass::operator== (const OBBoxClass &src)
+{
+	return (Center == src.Center) && (Extent == src.Extent) && (Basis == src.Basis);
+}
+
+
+/***********************************************************************************************
+ * OBBoxClass::operator!= -- Comparison operator                                               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   6/21/00    PDS : Created.                                                                 *
+ *=============================================================================================*/
+inline bool OBBoxClass::operator!= (const OBBoxClass &src)
+{
+	return (Center != src.Center) || (Extent != src.Extent) && (Basis == src.Basis);
+}
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/ode.cpp

@@ -0,0 +1,367 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /Commando/Code/wwmath/ODE.CPP 8     7/02/99 10:32a Greg_h $ */
+/*********************************************************************************************** 
+ ***                            Confidential - Westwood Studios                              *** 
+ *********************************************************************************************** 
+ *                                                                                             * 
+ *                 Project Name : Commando                                                     * 
+ *                                                                                             * 
+ *                     $Archive:: /Commando/Code/wwmath/ODE.CPP                               $* 
+ *                                                                                             * 
+ *                       Author:: Greg_h                                                       * 
+ *                                                                                             * 
+ *                     $Modtime:: 6/25/99 6:23p                                               $* 
+ *                                                                                             * 
+ *                    $Revision:: 8                                                           $* 
+ *                                                                                             * 
+ *---------------------------------------------------------------------------------------------* 
+ * Functions:                                                                                  * 
+ *   Euler_Integrate -- uses Eulers method to integrate a system of ODE's                      * 
+ *   Midpoint_Integrate -- midpoint method (Runge-Kutta 2) for integration                     * 
+ *   Runge_Kutta_Integrate -- Runge Kutta 4 method                                             * 
+ *   Runge_Kutta5_Integrate -- 5th order Runge-Kutta                                           * 
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "ode.h"
+#include <assert.h>
+
+static StateVectorClass		Y0;
+static StateVectorClass		Y1;
+static StateVectorClass		_WorkVector0;
+static StateVectorClass		_WorkVector1;
+static StateVectorClass		_WorkVector2;
+static StateVectorClass		_WorkVector3;
+static StateVectorClass		_WorkVector4;
+static StateVectorClass		_WorkVector5;
+static StateVectorClass		_WorkVector6;
+static StateVectorClass		_WorkVector7;
+
+/*********************************************************************************************** 
+ * Euler_Solve -- uses Eulers method to integrate a system of ODE's                            * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ * odesys - pointer to the ODE system to integrate                                             * 
+ * dt - size of the timestep                                                                   * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ * state vector in odesys will be updated for the next timestep                                * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   08/11/1997 GH  : Created.                                                                 * 
+ *   6/25/99    GTH : Updated to the new integrator system                                     *
+ *=============================================================================================*/
+void IntegrationSystem::Euler_Integrate(ODESystemClass * sys, float dt)
+{
+	WWASSERT(sys != NULL);
+
+	/*
+	** Get the current state
+	*/
+	Y0.Reset();
+	sys->Get_State(Y0);
+	Y1.Resize(Y0.Count());
+
+	/*
+	** make aliases to the work-vectors we need
+	*/
+	StateVectorClass & dydt = _WorkVector0;
+	dydt.Resize(Y0.Count());
+
+	/*
+	** Euler method, just evaluate the derivative, multiply
+	** by the time-step and add to the current state vector.
+	*/
+	sys->Compute_Derivatives(0,NULL,&dydt);
+
+	Y1.Resize(Y0.Count());
+	for (int i = 0; i < Y0.Count(); i++) {
+		Y1[i] = Y0[i] + dydt[i] * dt;
+	}
+
+	sys->Set_State(Y1);
+}
+
+/*********************************************************************************************** 
+ * Midpoint_Integrate -- midpoint method (Runge-Kutta 2)                                       * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ * sys - pointer to the ODE system to integrate                                                * 
+ * dt - size of the timestep                                                                   * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ * state vector in odesys will be updated for the next timestep                                * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   08/11/1997 GH  : Created.                                                                 * 
+ *   6/25/99    GTH : Updated to the new integrator system                                     *
+ *=============================================================================================*/
+void IntegrationSystem::Midpoint_Integrate(ODESystemClass * sys,float dt)
+{
+	int i;
+
+	/*
+	** Get the current state
+	*/
+	Y0.Reset();
+	sys->Get_State(Y0);
+	Y1.Resize(Y0.Count());
+
+	/*
+	** make aliases to the work-vectors we need
+	*/
+	StateVectorClass & dydt = _WorkVector0;
+	StateVectorClass & ymid = _WorkVector1;
+	dydt.Resize(Y0.Count());
+	ymid.Resize(Y0.Count());
+
+	/*
+	** MidPoint method, first evaluate the derivitives of the
+	** state vector just like the Euler method.  
+	*/
+	sys->Compute_Derivatives(0.0f,NULL,&dydt);
+
+	/*
+	** Compute the midpoint between the Euler solution and 
+	** the input values.
+	*/
+	for (i=0; i<Y0.Count(); i++) {
+		ymid[i] = Y0[i] + dt * dydt[i] / 2.0f;
+	}
+	
+	/*
+	** Re-compute derivatives at this point.  
+	*/
+	sys->Compute_Derivatives(dt/2.0f,&ymid,&dydt);
+
+	/*
+	** Use these derivatives to compute the solution.
+	*/
+	for (i=0; i<Y0.Count(); i++) {
+		Y1[i] = Y0[i] + dt * dydt[i];
+	}
+
+	sys->Set_State(Y1);
+}
+
+
+/*********************************************************************************************** 
+ * Runge_Kutta_Integrate -- Runge Kutta 4 method                                               * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ * odesys - pointer to the ODE system to integrate                                             * 
+ * dt - size of the timestep                                                                   * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ * state vector in odesys will be updated for the next timestep                                * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   08/11/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+void IntegrationSystem::Runge_Kutta_Integrate(ODESystemClass * sys,float dt)
+{
+	int i;
+	float dt2 = dt / 2.0f;
+	float dt6 = dt / 6.0f;
+
+	/*
+	** Get the current state
+	*/
+	Y0.Reset();
+	sys->Get_State(Y0);
+	Y1.Resize(Y0.Count());
+
+	/*
+	** make aliases to the work-vectors we need
+	*/
+	StateVectorClass & dydt =	_WorkVector0;
+	StateVectorClass & dym =	_WorkVector1;
+	StateVectorClass & dyt =	_WorkVector2;
+	StateVectorClass & yt =		_WorkVector3;
+	dydt.Resize(Y0.Count());
+	dym.Resize(Y0.Count());
+	dyt.Resize(Y0.Count());
+	yt.Resize(Y0.Count());
+
+	/*
+	** First Step
+	*/
+	sys->Compute_Derivatives(0.0f,NULL,&dydt);
+	for (i=0; i<Y0.Count(); i++) {
+		yt[i] = Y0[i] + dt2 * dydt[i];
+	}
+	
+	/*
+	** Second Step
+	*/
+	sys->Compute_Derivatives(dt2, &yt, &dyt);
+	for (i=0; i<Y0.Count(); i++) {
+		yt[i] = Y0[i] + dt2 * dyt[i];
+	}
+	
+	/*
+	** Third Step
+	*/
+	sys->Compute_Derivatives(dt2, &yt, &dym);
+	for (i=0; i<Y0.Count(); i++) {
+		yt[i] = Y0[i] + dt*dym[i];
+		dym[i] += dyt[i];
+	}
+
+	/*
+	** Fourth Step
+	*/
+	sys->Compute_Derivatives(dt, &yt, &dyt);
+	for (i=0; i<Y0.Count(); i++) {
+		Y1[i] = Y0[i] + dt6 * (dydt[i] + dyt[i] + 2.0f*dym[i]);
+	}
+
+	sys->Set_State(Y1);
+}
+
+/*********************************************************************************************** 
+ * Runge_Kutta5_Integrate -- 5th order Runge-Kutta                                             * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ * odesys - pointer to the ODE system to integrate                                             * 
+ * dt - size of the timestep                                                                   * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ * state vector in odesys will be updated for the next timestep                                * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   08/11/1997 GH  : Created.                                                                 * 
+ *   6/25/99    GTH : Converted to the new Integrator system                                   *
+ *=============================================================================================*/
+void IntegrationSystem::Runge_Kutta5_Integrate(ODESystemClass * odesys,float dt)
+{
+	int i;
+	int veclen;
+	static const float a2 =			0.2f;
+	static const float a3 =			0.3f;
+	static const float a4 =			0.6f;
+	static const float a5 =			1.0f;
+	static const float a6 =			0.875f;
+	static const float b21 =		0.2f;
+	static const float b31 =		3.0f/40.0f;
+	static const float b32 =		9.0f/40.0f;
+	static const float b41 =		0.3f;
+	static const float b42 =		-0.9f;
+	static const float b43 =		1.2f;
+	static const float b51 =		-11.0f /54.0f;
+	static const float b52 =		2.5f;
+	static const float b53 =		-70.0f/27.0f;
+	static const float b54 =		35.0f/27.0f;
+	static const float b61 =		1631.0f/55296.0f;
+	static const float b62 =		175.0f/512.0f;
+	static const float b63 =		575.0f/13824.0f;
+	static const float b64 =		44275.0f/110592.0f;
+	static const float b65 =		253.0f/4096.0f;
+	static const float c1 =			37.0f/378.0f;
+	static const float c3 =			250.0f/621.0f;
+	static const float c4 =			125.0f/594.0f;
+	static const float c6 =			512.0f/1771.0f;
+	static const float dc5 =		-277.0f/14336.0f;
+	static const float dc1 =		c1 - 2825.0f/27648.0f;
+	static const float dc3 =		c3 - 18575.0f/48384.0f;
+	static const float dc4 =		c4 - 13525.0f/55296.0f;
+	static const float dc6 =		c6 - 0.25f;
+
+	/*
+	** Get the current state
+	*/
+	Y0.Reset();
+	odesys->Get_State(Y0);
+	veclen = Y0.Count();
+	Y1.Resize(veclen);
+
+	/*
+	** make aliases to the work-vectors we need
+	*/
+	StateVectorClass & dydt	= _WorkVector0;
+	StateVectorClass & ak2	= _WorkVector1;
+	StateVectorClass & ak3	= _WorkVector2;
+	StateVectorClass & ak4	= _WorkVector3;
+	StateVectorClass & ak5	= _WorkVector4;
+	StateVectorClass & ak6	= _WorkVector5;
+	StateVectorClass & ytmp	= _WorkVector6;
+	StateVectorClass & yerr	= _WorkVector7;
+
+	dydt.Resize(veclen);
+	ak2.Resize(veclen);
+	ak3.Resize(veclen);
+	ak4.Resize(veclen);
+	ak5.Resize(veclen);
+	ak6.Resize(veclen);
+	ytmp.Resize(veclen);
+	yerr.Resize(veclen);
+
+	// First step
+	odesys->Compute_Derivatives(0.0f,NULL,&dydt);
+	for (i=0;i<veclen;i++) {
+		ytmp[i] = Y0[i] + b21*dt*dydt[i];
+	}
+
+	// Second step
+	odesys->Compute_Derivatives(a2*dt, &ytmp, &ak2);
+	for (i=0; i<veclen; i++) {
+		ytmp[i] = Y0[i] + dt*(b31*dydt[i] + b32*ak2[i]);
+	}
+	
+	// Third step
+	odesys->Compute_Derivatives(a3*dt, &ytmp, &ak3);
+	for (i=0; i<veclen; i++) {
+		ytmp[i] = Y0[i] + dt*(b41*dydt[i] + b42*ak2[i] + b43*ak3[i]);
+	}
+	
+	// Fourth step
+	odesys->Compute_Derivatives(a4*dt, &ytmp, &ak4);
+	for (i=0; i<veclen; i++) {
+		ytmp[i] = Y0[i] + dt*(b51*dydt[i] + b52*ak2[i] + b53*ak3[i] + b54*ak4[i]);
+	}
+
+	// Fifth step
+	odesys->Compute_Derivatives(a5*dt, &ytmp, &ak5);
+	for (i=0; i<veclen; i++) {
+		ytmp[i] = Y0[i] + dt*(b61*dydt[i] + b62*ak2[i] + b63*ak3[i] + b64*ak4[i] + b65*ak5[i]);
+	}
+
+	// Sixth step
+	odesys->Compute_Derivatives(a6*dt, &ytmp, &ak6);
+	for (i=0; i<veclen; i++) {
+		Y1[i] = Y0[i] + dt*(c1*dydt[i] + c3*ak3[i] + c4*ak4[i] + c6*ak6[i]);
+	}
+
+	// Error approximation!  
+	// (maybe I should use this someday? nah not going to use this integrator anyway...)
+	for (i=0; i<veclen; i++) {
+		yerr[i] = dt*(dc1*dydt[i] + dc3*ak3[i] + dc4*ak4[i] + dc5*ak5[i] + dc6*ak6[i]);
+	}
+
+	odesys->Set_State(Y1);
+}
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/ode.h

@@ -0,0 +1,134 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /G/wwmath/ode.h 9     9/21/99 5:54p Neal_k $ */
+/*********************************************************************************************** 
+ ***                            Confidential - Westwood Studios                              *** 
+ *********************************************************************************************** 
+ *                                                                                             * 
+ *                 Project Name : Commando                                                     * 
+ *                                                                                             * 
+ *                     $Archive:: /G/wwmath/ode.h                                             $* 
+ *                                                                                             * 
+ *                       Author:: Greg_h                                                       * 
+ *                                                                                             * 
+ *                     $Modtime:: 9/21/99 5:54p                                               $* 
+ *                                                                                             * 
+ *                    $Revision:: 9                                                           $* 
+ *                                                                                             * 
+ *---------------------------------------------------------------------------------------------* 
+ * Functions:                                                                                  * 
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef ODE_H
+#define ODE_H
+
+#include "always.h"
+#include "vector.h"
+#include "wwdebug.h"
+
+
+/*
+** StateVectorClass
+** The state vector for a system of ordinary differential equations will be 
+** stored in this form.  It is a dynamically resizeable array so that we don't
+** have to hard-code a maximum size.  If needed, in the final product, we could
+** do a slight optimization which makes this a normal fixed size array that
+** we've determined is "big enough".
+*/
+class StateVectorClass : public DynamicVectorClass<float> 
+{
+public:
+	void Reset(void) { ActiveCount = 0; }
+	void Resize(int size) { if (size > VectorMax) { DynamicVectorClass<float>::Resize(size); } }
+};
+
+
+/*
+** ODESystemClass
+** If a system of Ordinary Differential Equations (ODE's) are put behind an interface
+** of this type, they can be integrated using the Integrators defined in this module.
+*/
+class ODESystemClass
+{
+
+public:
+
+	/*
+	** Get_Current_State
+	** This function should fill the given state vector with the
+	** current state of this object.  Each state variable should be 
+	** inserted into the vector using its 'Add' interface.  
+	*/
+	virtual void	Get_State(StateVectorClass & set_state) = 0;
+
+	/*
+	** Set_Current_State
+	** This function should read its state from this state vector starting from the
+	** given index.  The return value should be the index that the next object should
+	** read from (i.e. increment the index past your state)
+	*/
+	virtual int		Set_State(const StateVectorClass & new_state,int start_index = 0) = 0;
+
+	/*
+	** Compute_Derivatives
+	** The various ODE solvers will use this interface to ask the ODESystemClass to 
+	** compute the derivatives of their state.  In some cases, the integrator will
+	** pass in a new state vector (test_state) to be used when computing the derivatives.  
+	** NULL will be passed if they want the derivatives for the initial state.
+	** This function works similarly to the Set_State function in that it passes you
+	** the index to start reading from and you pass it back the index to continue from.
+	*/
+	virtual int		Compute_Derivatives(float t,StateVectorClass * test_state,StateVectorClass * dydt,int start_index = 0) = 0;
+
+};
+
+
+/*
+** IntegrationSystem
+**
+** The Euler_Solve is the simplest but most inaccurate.  It requires only
+** a single computation of the derivatives per timestep.
+**
+** The Midpoint_Solve function will evaluate the derivatives at two points
+**
+** The Runge_Kutta_Solve requires four evaluations of the derivatives.
+** This is the fourth order Runge-Kutta method...
+**
+** Runge_Kutta5_Solve is an implementation of fifth order Runge-
+** Kutta.  It requires six evaluations of the derivatives.  
+*/
+
+class IntegrationSystem
+{
+public:
+
+	static void Euler_Integrate(ODESystemClass * sys,float dt);
+	static void	Midpoint_Integrate(ODESystemClass * sys,float dt);
+	static void	Runge_Kutta_Integrate(ODESystemClass * sys,float dt);
+	static void Runge_Kutta5_Integrate(ODESystemClass * odesys,float dt);
+
+};
+
+#endif
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/plane.h

@@ -0,0 +1,250 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /Commando/Code/wwmath/plane.h 16    5/05/01 5:48p Jani_p $ */
+/*********************************************************************************************** 
+ ***                            Confidential - Westwood Studios                              *** 
+ *********************************************************************************************** 
+ *                                                                                             * 
+ *                 Project Name : Voxel Technology                                             * 
+ *                                                                                             * 
+ *                    File Name : PLANE.H                                                      * 
+ *                                                                                             * 
+ *                   Programmer : Greg Hjelstrom                                               * 
+ *                                                                                             * 
+ *                   Start Date : 03/17/97                                                     * 
+ *                                                                                             * 
+ *                  Last Update : March 17, 1997 [GH]                                          * 
+ *                                                                                             * 
+ *---------------------------------------------------------------------------------------------* 
+ * Functions:                                                                                  * 
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef PLANE_H
+#define PLANE_H
+
+#include "always.h"
+#include "vector3.h"
+#include "sphere.h"
+
+/*
+** PlaneClass
+**
+** 3D-planes.  This class uses the Normal+Distance description of a plane.
+** The relationship for all points (p) on the plane is given by:
+** 
+**   N.X * p.X + N.Y * p.Y + N.Z * p.Z = D
+**
+** BEWARE, if you are used to the Ax + By + Cz + D = 0 description, the 
+** sign of the D value is inverted.
+*/
+
+class PlaneClass
+{
+public:
+
+	enum { FRONT = 0, BACK, ON };
+
+	Vector3	N;			// Normal of the plane
+	float		D;			// Distance along the normal from the origin
+
+	PlaneClass(void) : N(0.0f,0.0f,1.0f), D(0.0f) { }
+
+	/*
+	** Plane initialization:
+	** a,b,c,d - explicitly set the four coefficients (note the sign of d!)
+	** normal,dist - explicitly set the normal and distance
+	** normal,point - compute plane with normal, containing point
+	** p1,p2,p3 - compute plane containing three points
+	*/
+	PlaneClass(float nx,float ny,float nz,float dist);
+	PlaneClass(const Vector3 & normal,float dist);
+	PlaneClass(const Vector3 & normal,const Vector3 & point);
+	PlaneClass(const Vector3 & point1,const Vector3 & point2,const Vector3 & point3);
+
+	inline void Set(float a,float b,float c,float d);
+	inline void Set(const Vector3 & normal,float dist);
+	inline void Set(const Vector3 & normal,const Vector3 & point);
+	inline void Set(const Vector3 & point1,const Vector3 & point2,const Vector3 & point3);
+
+	bool Compute_Intersection(const Vector3 & p0,const Vector3 & p1,float * set_t) const;
+	bool In_Front(const Vector3 & point) const;
+	bool In_Front(const SphereClass & sphere) const;
+	bool In_Front_Or_Intersecting(const SphereClass & sphere) const;
+
+	static void Intersect_Planes(const PlaneClass & a, const PlaneClass & b, Vector3 *line_dir, Vector3 *line_point);
+};
+
+inline PlaneClass::PlaneClass(float nx,float ny,float nz,float dist) 
+{
+	Set(nx,ny,nz,dist);
+}
+	
+inline PlaneClass::PlaneClass(const Vector3 & normal,float dist) 
+{
+	Set(normal,dist);
+}
+
+inline PlaneClass::PlaneClass(const Vector3 & normal,const Vector3 & point)
+{
+	Set(normal,point);
+}
+
+inline PlaneClass::PlaneClass(const Vector3 & point1, const Vector3 & point2, const Vector3 & point3) 
+{
+	Set(point1,point2,point3);
+}
+
+inline void PlaneClass::Set(float a,float b,float c,float d)
+{
+	N.X = a;
+	N.Y = b;
+	N.Z = c;
+	D = d;
+}
+
+inline void PlaneClass::Set(const Vector3 & normal,float dist) 
+{
+	N = normal;
+	D = dist;
+}
+
+inline void PlaneClass::Set(const Vector3 & normal,const Vector3 & point)
+{
+	N = normal;
+	D = Vector3::Dot_Product(normal , point);
+}
+
+
+inline void PlaneClass::Set(const Vector3 & point1, const Vector3 & point2, const Vector3 & point3) 
+{
+#ifdef ALLOW_TEMPORARIES
+	N = Vector3::Cross_Product((point2 - point1), (point3 - point1));
+#else
+	Vector3::Cross_Product((point2 - point1), (point3 - point1), &N);
+#endif
+	if (N != Vector3(0.0f, 0.0f, 0.0f)) {
+		// Points are not colinear. Normalize N and calculate D.
+		N.Normalize();
+		D = Vector3::Dot_Product(N, point1);
+	} else {
+		// They are colinear - return default plane (constructors can't fail).
+		N = Vector3(0.0f, 0.0f, 1.0f);
+		D = 0.0f;
+	}
+}
+
+inline bool PlaneClass::Compute_Intersection(const Vector3 & p0,const Vector3 & p1,float * set_t) const
+{
+	float num,den;
+	den = Vector3::Dot_Product(N,p1-p0);
+
+	/*
+	** If the denominator is zero, the ray is parallel to the plane
+	*/
+	if (den == 0.0f) {
+		return false;
+	}
+
+	num = -(Vector3::Dot_Product(N,p0) - D);
+
+	*set_t = num/den;
+
+	/*
+	** If t is not between 0 and 1, the line containing the segment intersects
+	** the plane but the segment does not
+	*/
+	if ((*set_t < 0.0f) || (*set_t > 1.0f)) {
+		return false;
+	}
+
+	return true;
+}
+
+inline bool PlaneClass::In_Front(const Vector3 & point) const
+{
+	float dist = Vector3::Dot_Product(point,N);
+	return (dist > D);
+}
+
+// This function returns true if the sphere is in front of the plane.
+inline bool PlaneClass::In_Front(const SphereClass & sphere) const
+{
+	float dist = Vector3::Dot_Product(sphere.Center,N);
+	return ((dist - D) >= sphere.Radius);
+}
+
+// This function will return 1 if any part of the sphere is in front of the plane.
+// (i.e. if the sphere is entirely in front of the plane or if it intersects the plane).
+inline bool PlaneClass::In_Front_Or_Intersecting(const SphereClass & sphere) const
+{
+	float dist = Vector3::Dot_Product(sphere.Center , N);
+	return ((D - dist) < sphere.Radius);
+}
+
+inline void PlaneClass::Intersect_Planes(const PlaneClass & a, const PlaneClass & b, Vector3 *line_dir, Vector3 *line_point)
+{
+	// Method used is from "plane-to-plane intersection", Graphics Gems III, pp. 233-235.
+
+	// Find line of intersection. First find direction vector of line:
+	Vector3::Cross_Product(a.N, b.N, line_dir);
+
+	// Now find point on line. How we do it depends on what the largest coordinate of the
+	// direction vector is.
+	Vector3 abs_dir = *line_dir;
+	abs_dir.Update_Max(-abs_dir);
+	if (abs_dir.X > abs_dir.Y) {
+		if (abs_dir.X > abs_dir.Z) {
+			// X largest
+			float ool = 1.0f / line_dir->X;
+			line_point->Y = (b.N.Z * a.D - a.N.Z * b.D) * ool;
+			line_point->Z = (a.N.Y * b.D - b.N.Y * a.D) * ool;
+			line_point->X = 0.0f;
+		} else {
+			// Z largest
+			float ool = 1.0f / line_dir->Z;
+			line_point->X = (b.N.Y * a.D - a.N.Y * b.D) * ool;
+			line_point->Y = (a.N.X * b.D - b.N.X * a.D) * ool;
+			line_point->Z = 0.0f;
+		}
+	} else {
+		if (abs_dir.Y > abs_dir.Z) {
+			// Y largest
+			float ool = 1.0f / line_dir->Y;
+			line_point->Z = (b.N.X * a.D - a.N.X * b.D) * ool;
+			line_point->X = (a.N.Z * b.D - b.N.Z * a.D) * ool;
+			line_point->Y = 0.0f;
+		} else {
+			// Z largest
+			float ool = 1.0f / line_dir->Z;
+			line_point->X = (b.N.Y * a.D - a.N.Y * b.D) * ool;
+			line_point->Y = (a.N.X * b.D - b.N.X * a.D) * ool;
+			line_point->Z = 0.0f;
+		}
+	}
+
+	// Normalize direction vector (we do it here because we needed the non-normalized version to
+	// find the point).
+	line_dir->Normalize();
+}
+
+#endif /*PLANE_H*/

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/pot.cpp

@@ -0,0 +1,118 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*************************************************************************** 
+ ***    C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S     *** 
+ *************************************************************************** 
+ *                                                                         * 
+ *                 Project Name : G                                        * 
+ *                                                                         * 
+ *                     $Archive:: /G/ww3d/POT.CPP                         $* 
+ *                                                                         * 
+ *                      $Author:: Naty_h                                  $* 
+ *                                                                         * 
+ *                     $Modtime:: 12/23/98 7:58a                          $* 
+ *                                                                         * 
+ *                    $Revision:: 3                                       $* 
+ *                                                                         * 
+ *-------------------------------------------------------------------------* 
+ * Functions:                                                              * 
+ *   Find_POT -- finds closest inclusive power of 2 to a value             * 
+ *   Find_POT_Log2 -- finds log2 of closest inclusive power of 2 to a value* 
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "pot.h"
+
+/************************************************************************** 
+ * Find_POT -- finds closest inclusive power of 2 to a value              * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *   10/20/1997 PWG : Created.                                            * 
+ *========================================================================*/
+int Find_POT(int val)
+{
+	// clear out the recorded position and the recorded count
+	int recpos = 0;
+	int reccnt = 0;
+
+	// walk through the value shifting off bits and record the
+	// position of the highest bit, and whether we have found
+	// more than one bit.
+	for (int lp = 0; val; lp++) {
+		if (val & 1) {
+			recpos = lp;
+			reccnt++;
+		}
+		val >>= 1;
+	}
+	// if we have not found more than one bit then the number
+	// was the power of two so return it.
+	if (reccnt < 2) {
+		return( 1 << recpos);
+	}
+	// if we found more than one bit, then the number needs to
+	// be rounded up to the next highest power of 2.
+	return( 1 << (recpos + 1));
+}
+
+
+/************************************************************************** 
+ * Find_POT_Log2 -- finds log2 of closest inclusive power of 2 to a value * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *   12/23/1998 NH : Created.                                             * 
+ *========================================================================*/
+unsigned int Find_POT_Log2(unsigned int val)
+{
+	// clear out the recorded position and the recorded count
+	int recpos = 0;
+	int reccnt = 0;
+
+	// walk through the value shifting off bits and record the
+	// position of the highest bit, and whether we have found
+	// more than one bit.
+	for (int lp = 0; val; lp++) {
+		if (val & 1) {
+			recpos = lp;
+			reccnt++;
+		}
+		val >>= 1;
+	}
+	// if we have not found more than one bit then the number
+	// was the power of two so return it.
+	if (reccnt < 2) {
+		return recpos;
+	}
+	// if we found more than one bit, then the number needs to
+	// be rounded up to the next highest power of 2.
+	return recpos + 1;
+}
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/pot.h

@@ -0,0 +1,45 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*************************************************************************** 
+ ***    C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S     *** 
+ *************************************************************************** 
+ *                                                                         * 
+ *                 Project Name : G                                        * 
+ *                                                                         * 
+ *                     $Archive:: /G/ww3d/POT.H                           $* 
+ *                                                                         * 
+ *                      $Author:: Naty_h                                  $* 
+ *                                                                         * 
+ *                     $Modtime:: 12/23/98 7:51a                          $* 
+ *                                                                         * 
+ *                    $Revision:: 4                                       $* 
+ *                                                                         * 
+ *-------------------------------------------------------------------------* 
+ * Functions:                                                              * 
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef __POT_H__
+#define __POT_H__
+int Find_POT(int val);
+unsigned int Find_POT_Log2(unsigned int val);
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/quat.cpp

@@ -0,0 +1,895 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /Commando/Code/wwmath/quat.cpp 38    8/28/01 10:26a Greg_h $ */
+/*********************************************************************************************** 
+ ***                            Confidential - Westwood Studios                              *** 
+ *********************************************************************************************** 
+ *                                                                                             * 
+ *                 Project Name : Voxel Technology                                             * 
+ *                                                                                             * 
+ *                    File Name : QUAT.CPP                                                     * 
+ *                                                                                             * 
+ *                   Programmer : Greg Hjelstrom                                               * 
+ *                                                                                             * 
+ *                   Start Date : 02/24/97                                                     * 
+ *                                                                                             * 
+ *                  Last Update : February 28, 1997 [GH]                                       * 
+ *                                                                                             * 
+ *---------------------------------------------------------------------------------------------* 
+ * Functions:                                                                                  * 
+ *   Quaternion::Quaternion -- constructor                                                     * 
+ *   Quaternion::Set -- Set the quaternion                                                     * 
+ *   Quaternion::operator= -- Assignment operator                                              * 
+ *   Quaternion::Make_Closest -- Use nearest representation to the given quaternion.           * 
+ *   Trackball -- Computes a "trackball" quaternion given 2D mouse coordinates                 * 
+ *   Axis_To_Quat -- Creates a quaternion given an axis and angle of rotation                  * 
+ *   Slerp -- Spherical Linear interpolation!                                                  * 
+ *   Build_Quaternion -- Creates a quaternion from a Matrix                                    * 
+ *   Build_Matrix -- Creates a Matrix from a Quaternion                                        * 
+ *   Normalize -- normalizes a quaternion                                                      * 
+ *   Quaternion::Quaternion -- constructor                                                     *
+ *   Slerp_Setup -- Get ready to call "Cached_Slerp"                                           *
+ *   Cached_Slerp -- Quaternion slerping, optimized with cached values                         *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "quat.h"
+#include "matrix3d.h"
+#include "matrix4.h"
+#include "wwmath.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <assert.h>
+
+#define SLERP_EPSILON		0.001
+
+static int _nxt[3] = { 1 , 2 , 0 };
+
+
+// ------------------------------------------------------------
+// 	local functions
+// ------------------------------------------------------------
+static float project_to_sphere(float,float,float);
+
+
+/***********************************************************************************************
+ * Quaternion::Quaternion -- constructor                                                       *
+ *                                                                                             *
+ * constructs a quaternion from the given axis and angle of rotation (in RADIANS of course)    *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ * axis - axis of the rotation                                                                 *
+ * angle - rotation angle                                                                      * 
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   12/10/97   GTH : Created.                                                                 *
+ *=============================================================================================*/
+Quaternion::Quaternion(const Vector3 & axis,float angle)
+{
+	float s = WWMath::Sin(angle/2);
+	float c = WWMath::Cos(angle/2);
+	X = s * axis.X;
+	Y = s * axis.Y;
+	Z = s * axis.Z;
+	W = c;
+}
+
+
+/*********************************************************************************************** 
+ * Quaternion::Normalize -- Normalize to a unit quaternion                                     * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   02/24/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+void Quaternion::Normalize()
+{
+	float len2=X * X + Y * Y + Z * Z + W * W;
+	if (0.0f == len2) {
+		return;
+	} else {
+		float inv_mag = WWMath::Inv_Sqrt(len2);
+
+		X *= inv_mag;
+		Y *= inv_mag;
+		Z *= inv_mag;
+		W *= inv_mag;
+	}
+}
+
+/*********************************************************************************************** 
+ * Q::Make_Closest -- Use nearest representation to the given quaternion.                      * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   02/28/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+Quaternion & Quaternion::Make_Closest(const Quaternion & qto)
+{
+	float cos_t = qto.X * X + qto.Y * Y + qto.Z * Z + qto.W * W;
+
+	// if we are on opposite hemisphere from qto, negate ourselves
+	if (cos_t < 0.0) {
+		X = -X;
+		Y = -Y;
+		Z = -Z;
+		W = -W;
+	}
+	
+	return *this;
+}
+
+/*********************************************************************************************** 
+ * Trackball -- Computes a "trackball" quaternion given 2D mouse coordinates                   * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ * x0,y0 - x1,y1 - "normalized" mouse coordinates for the mouse movement                       * 
+ * sphsize - size of the trackball sphere                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ * a quaternion representing the rotation of a trackball                                       * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   02/28/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+Quaternion Trackball(float x0, float y0, float x1, float y1, float sphsize)
+{
+	Vector3	a;
+	Vector3	p1;
+	Vector3	p2;
+	Vector3	d;	
+
+	float phi,t;
+
+	if ((x0 == x1) && (y0 == y1)) {
+		return Quaternion(0.0f, 0.0f, 0.0f, 1.0f);	// Zero rotation
+	}
+
+
+	// Compute z coordinates for projection of p1 and p2 to
+	// deformed sphere
+	p1[0] = x0;
+	p1[1] = y0;
+	p1[2] = project_to_sphere(sphsize, x0, y0);
+
+	p2[0] = x1;
+	p2[1] = y1;
+	p2[2] = project_to_sphere(sphsize, x1, y1);
+
+
+	// Find their cross product
+	Vector3::Cross_Product(p2,p1,&a);
+
+	// Compute how much to rotate
+	d = p1 - p2;
+	t = d.Length() / (2.0f * sphsize);
+
+	// Avoid problems with out of control values
+	if (t >  1.0f) t =  1.0f;
+	if (t < -1.0f) t = -1.0f;
+	phi = 2.0f * WWMath::Asin(t);
+
+	return Axis_To_Quat(a, phi);
+}
+
+
+/*********************************************************************************************** 
+ * Axis_To_Quat -- Creates a quaternion given an axis and angle of rotation                    * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   02/28/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+Quaternion Axis_To_Quat(const Vector3 &a, float phi)
+{
+	Quaternion q;
+	Vector3 tmp = a;  
+
+	tmp.Normalize();
+	q[0] = tmp[0];
+	q[1] = tmp[1];
+	q[2] = tmp[2];
+
+	q.Scale(WWMath::Sin(phi / 2.0f));
+	q[3] =  WWMath::Cos(phi / 2.0f);
+
+	return q;
+}
+
+/*********************************************************************************************** 
+ * Slerp -- Spherical Linear interpolation!                                                    * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *  p - start quaternion                                                                       * 
+ *  q - end quaternion                                                                         * 
+ *  alpha - interpolating parameter                                                            * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   02/28/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+
+#if 0
+#pragma warning (disable : 4725)
+
+#define ARC_TABLE_SIZE_MASK 1023
+#define SIN_TABLE_SIZE_MASK 1023
+
+void __cdecl Fast_Slerp(Quaternion& res, const Quaternion & p,const Quaternion & q,float alpha)
+{
+	float float_epsilon2=WWMATH_EPSILON * WWMATH_EPSILON;
+	float HalfOfArcTableSize=float(ARC_TABLE_SIZE/2);
+	float HalfOfSinTableSize=float(SIN_TABLE_SIZE/2);
+	const unsigned ARC_TABLE_SIZE_PER_2=ARC_TABLE_SIZE/2;
+
+	float beta;		// complementary interploation parameter
+	float theta;	// angle between p and q
+
+	__asm {
+		mov		esi, p
+		mov		edi, q
+		fld1										// we'll need 1.0 and 0.0 later
+
+// ----------------------------------------------------------------------------
+//	cos theta = dot product of p and q
+//	cos_t = p.X * q.X + p.Y * q.Y + p.Z * q.Z + p.W * q.W;
+// if q is on opposite hemisphere from A, use -B instead
+// if (cos_t < 0.0) {
+//		cos_t = -cos_t;
+//		qflip = true;
+//	}
+//	else {
+//		qflip = false;
+//	}
+// ----------------------------------------------------------------------------
+
+		fld      dword ptr [esi]			// p.X
+		fmul     dword ptr [edi]			//	p.X*q.X
+		fld      dword ptr [esi+08h]		//	p.Y
+		fmul     dword ptr [edi+08h]		// p.Y*q.Y
+		fld      dword ptr [esi+04h]		// p.Z
+		fmul     dword ptr [edi+04h]		// p.Z*q.Z
+		fld      dword ptr [edi+0ch]		// p.W
+		fmul     dword ptr [esi+0ch]		// p.W*q.W
+		faddp		st(2), st(0)				// y+=w
+		faddp		st(2), st(0)				// x+=z
+		faddp		st(1),st(0)					// x+z + y+w
+		fst		beta
+		fabs
+		mov		ebx,beta
+		and		ebx,0x80000000
+
+// ----------------------------------------------------------------------------
+// if q is very close to p, just linearly interpolate
+// between the two.
+//	if (1.0 - cos_t < WWMATH_EPSILON * WWMATH_EPSILON) {
+//		beta = 1.0 - alpha;
+// }
+// ----------------------------------------------------------------------------
+
+		fld		st(0)						// duplicate st(0), which contains cos_t
+		fsubr		st(0),st(2)				// st(2) contains 1.0
+		fcomp    float_epsilon2
+		fnstsw   ax
+		test     ah, 01h
+		je       normal_slerp
+
+		fld		alpha
+		fsubr		st(0),st(1)				// st(1) contains 1.0
+ 		fstp     beta
+		jmp      done_slerp
+
+normal_slerp:
+// ----------------------------------------------------------------------------
+// normal slerp!
+//	else {
+//		theta = WWMath::Acos(cos_t);
+//		sin_t = WWMath::Sin(theta);
+//		oo_sin_t = 1.0 / sin_t;
+//		beta = WWMath::Sin(theta - alpha*theta) * oo_sin_t;
+//		alpha = WWMath::Sin(alpha*theta) * oo_sin_t;
+// }
+//	if (qflip) {
+//		alpha = -alpha;
+//	}
+// ----------------------------------------------------------------------------
+
+		fld		HalfOfSinTableSize
+		fld		HalfOfArcTableSize
+		fmul		st(0),st(2)					// cos_t * (ARC_TABLE_SIZE/2)
+		fistp		theta							// convert to integer
+		mov		eax,theta
+		add		eax,ARC_TABLE_SIZE_PER_2
+		jns		no_neg
+		xor		eax,eax
+		jmp		contin
+no_neg:
+		cmp		eax,ARC_TABLE_SIZE
+		jl			contin					// Note: Use Setcc/Movcc here!!!
+		mov		eax,ARC_TABLE_SIZE_MASK
+contin:
+		fld		dword ptr[_FastAcosTable+eax*4]
+		fst		theta
+
+		fmul		st(0),st(1)				// theta * (sin_table_size/2)
+		fadd		st(0),st(1)				// theta * (sin_table_size/2) + (sin_table_size/2)
+		fistp		beta						// conver to integer
+		mov		ecx,SIN_TABLE_SIZE_MASK
+		mov		eax,beta
+		and		eax,ecx					// & SIN_TABLE_SIZE_MASK
+		fld		dword ptr[_FastInvSinTable+eax*4]	// 1.0f/sin(theta)
+
+		fld      theta
+		fmul     alpha						// theta*alpha
+		fld		st(0)						// duplicate stack head as we need theta*alpha later
+		fsubr		theta						// theta-theta*alpha
+
+		fmul		st(0),st(3)				//	(theta-theta*alpha)*HalfOfSinTableSize
+		fadd		st(0),st(3)				// (theta-theta*alpha)*HalfOfSinTableSize+HalfOfSinTableSize
+		fistp		beta						// convert to integer
+		mov		eax,beta
+		and		eax,ecx					// & SIN_TABLE_SIZE_MASK
+		fld		dword ptr[_FastSinTable+eax*4]	// sin(theta-theta*alpha)
+
+		fmul     st(0),st(2)				// sin(theta-theta*alpha) * oo_sin_t
+		fstp     beta
+
+		fmul		st(0),st(2)				// (theta*alpha)*HalfOfSinTableSize
+		fadd		st(0),st(2)				// (theta*alpha)*HalfOfSinTableSize+HalfOfSinTableSize
+		fistp		theta						// convert to integer
+		mov		eax,theta
+		and		eax,ecx					// & SIN_TABLE_SIZE_MASK
+		fld		dword ptr[_FastSinTable+eax*4]	// sin(theta*alpha)
+
+		fmul     st(0),st(1)				//	oo_sin_t
+		fstp     alpha
+		fstp st(0)							// pop oo_sin_t
+		fstp	st(0)							// pop HalfOfSinTableSize
+done_slerp:
+		test     ebx, ebx
+		je       no_negative
+		fld      alpha
+		fchs
+		fstp     alpha
+
+no_negative:
+// ----------------------------------------------------------------------------
+//	res.X = beta*p.X + alpha*q.X;
+//	res.Y = beta*p.Y + alpha*q.Y;
+//	res.Z = beta*p.Z + alpha*q.Z;
+//	res.W = beta*p.W + alpha*q.W;
+// ----------------------------------------------------------------------------
+
+		fstp		st(0)						// pop cos_t
+		fstp		st(0)						// pop 1.0
+
+		fld		alpha
+		fld		dword ptr [edi+4]		// q.Y
+		fmul		st(0),st(1)				// alpha*q.Y
+		fld		dword ptr [edi+8]		// q.Z
+		fmul		st(0),st(2)				// alpha*q.Z
+		fld		dword ptr [edi+12]	// q.W
+		fmul		st(0),st(3)				// alpha*q.W
+		fld		dword ptr [edi]		// q.X
+		fmulp		st(4),st					// alpha*q.X
+
+		fld		beta
+		fld		dword ptr [esi+4]		// p.Y
+		fmul		st(0),st(1)				// beta*p.Y
+		fld		dword ptr [esi+8]		// p.Z
+		fmul		st(0),st(2)				// beta*p.Z
+		fld		dword ptr [esi]		// p.X
+		fmul		st(0),st(3)				// beta*p.X
+		fxch		st(3)						// move beta to top of stack
+		fmul		dword ptr [esi+12]	// beta*p.W
+
+		faddp		st(4),st					// w
+		faddp		st(4),st					// z
+		faddp		st(4),st					// y
+		faddp		st(4),st					// x
+
+		mov		ecx, res
+		fstp		[ecx+12]					// w
+		fstp		[ecx+8]					//	z
+		fstp		[ecx+4]					// y
+		fstp		[ecx]						// x
+	}
+}
+#else
+void __cdecl Fast_Slerp(Quaternion& res, const Quaternion & p,const Quaternion & q,float alpha)
+{		
+	float beta;			// complementary interploation parameter
+	float theta;		// angle between p and q
+	float cos_t; 		// sine, cosine of theta
+	float oo_sin_t;
+	int qflip;			// use flip of q?
+	
+	// cos theta = dot product of p and q
+	cos_t = p.X * q.X + p.Y * q.Y + p.Z * q.Z + p.W * q.W;
+
+	// if q is on opposite hemisphere from A, use -B instead
+	if (cos_t < 0.0f) {
+		cos_t = -cos_t;
+		qflip = true;
+	} else {
+		qflip = false;
+	}
+
+	if (1.0f - cos_t < WWMATH_EPSILON * WWMATH_EPSILON) {
+
+		// if q is very close to p, just linearly interpolate
+		// between the two.
+		beta = 1.0f - alpha;
+
+	} else {
+
+		theta = WWMath::Fast_Acos(cos_t);
+		float sin_t = WWMath::Fast_Sin(theta);
+		oo_sin_t = 1.0f / sin_t;
+		beta = WWMath::Fast_Sin(theta - alpha*theta) * oo_sin_t;
+		alpha = WWMath::Fast_Sin(alpha*theta) * oo_sin_t;
+	}
+
+	if (qflip) {
+		alpha = -alpha;
+	}
+
+	res.X = beta*p.X + alpha*q.X;
+	res.Y = beta*p.Y + alpha*q.Y;
+	res.Z = beta*p.Z + alpha*q.Z;
+	res.W = beta*p.W + alpha*q.W;
+}
+
+#endif	// MSC_VER
+
+void Slerp(Quaternion& res, const Quaternion & p,const Quaternion & q,float alpha)
+{		
+	float beta;				// complementary interploation parameter
+	float theta;				// angle between p and q
+	//float sin_t
+	float cos_t; 		// sine, cosine of theta
+	float oo_sin_t;
+	int qflip;					// use flip of q?
+	
+	// cos theta = dot product of p and q
+	cos_t = p.X * q.X + p.Y * q.Y + p.Z * q.Z + p.W * q.W;
+
+	// if q is on opposite hemisphere from A, use -B instead
+	if (cos_t < 0.0f) {
+		cos_t = -cos_t;
+		qflip = true;
+	} else {
+		qflip = false;
+	}
+
+	if (1.0f - cos_t < WWMATH_EPSILON * WWMATH_EPSILON) {
+
+		// if q is very close to p, just linearly interpolate
+		// between the two.
+		beta = 1.0f - alpha;
+
+	} else {
+
+		// normal slerp!
+		theta = WWMath::Acos(cos_t);
+		float sin_t = WWMath::Sin(theta);
+		oo_sin_t = 1.0f / sin_t;
+		beta = WWMath::Sin(theta - alpha*theta) * oo_sin_t;
+		alpha = WWMath::Sin(alpha*theta) * oo_sin_t;
+	}
+
+	if (qflip) {
+		alpha = -alpha;
+	}
+
+	res.X = beta*p.X + alpha*q.X;
+	res.Y = beta*p.Y + alpha*q.Y;
+	res.Z = beta*p.Z + alpha*q.Z;
+	res.W = beta*p.W + alpha*q.W;
+}
+
+/***********************************************************************************************
+ * Slerp_Setup -- Get ready to call "Cached_Slerp"                                             *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/27/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+void Slerp_Setup(const Quaternion & p,const Quaternion & q,SlerpInfoStruct * slerpinfo)
+{
+	float cos_t;
+	
+	assert(slerpinfo != NULL);
+
+	// cos theta = dot product of p and q
+	cos_t = p.X * q.X + p.Y * q.Y + p.Z * q.Z + p.W * q.W;
+
+	// if q is on opposite hemisphere from A, use -B instead
+	if (cos_t < 0.0f) {
+		cos_t = -cos_t;
+		slerpinfo->Flip = true;
+	} else {
+		slerpinfo->Flip = false;
+	}
+
+	if (1.0f - cos_t < SLERP_EPSILON) {
+
+		slerpinfo->Linear = true;
+		slerpinfo->Theta = 0.0f;
+		slerpinfo->SinT = 0.0f;
+
+	} else {
+
+		slerpinfo->Linear = false;
+		slerpinfo->Theta = WWMath::Acos(cos_t);
+		slerpinfo->SinT = WWMath::Sin(slerpinfo->Theta);
+	
+	}
+}
+
+/***********************************************************************************************
+ * Cached_Slerp -- Quaternion slerping, optimized with cached values                           *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   2/27/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+Quaternion Cached_Slerp(const Quaternion & p,const Quaternion & q,float alpha,SlerpInfoStruct * slerpinfo)
+{
+	float beta;				// complementary interploation parameter
+	float oo_sin_t;
+
+	if (slerpinfo->Linear) {
+
+		// if q is very close to p, just linearly interpolate
+		// between the two.
+		beta = 1.0f - alpha;
+
+	} else {
+
+		// normal slerp!
+		oo_sin_t = 1.0f / slerpinfo->Theta;
+		beta = WWMath::Sin(slerpinfo->Theta - alpha*slerpinfo->Theta) * oo_sin_t;
+		alpha = WWMath::Sin(alpha*slerpinfo->Theta) * oo_sin_t;
+	}
+
+	if (slerpinfo->Flip) {
+		alpha = -alpha;
+	}
+
+	Quaternion res;
+	res.X = beta*p.X + alpha*q.X;
+	res.Y = beta*p.Y + alpha*q.Y;
+	res.Z = beta*p.Z + alpha*q.Z;
+	res.W = beta*p.W + alpha*q.W;
+
+	return res;
+}
+
+void Cached_Slerp(const Quaternion & p,const Quaternion & q,float alpha,SlerpInfoStruct * slerpinfo,Quaternion * set_q)
+{
+	float beta;				// complementary interploation parameter
+	float oo_sin_t;
+
+	if (slerpinfo->Linear) {
+
+		// if q is very close to p, just linearly interpolate
+		// between the two.
+		beta = 1.0f - alpha;
+
+	} else {
+
+		// normal slerp!
+		oo_sin_t = 1.0f / slerpinfo->Theta;
+		beta = WWMath::Sin(slerpinfo->Theta - alpha*slerpinfo->Theta) * oo_sin_t;
+		alpha = WWMath::Sin(alpha*slerpinfo->Theta) * oo_sin_t;
+	}
+
+	if (slerpinfo->Flip) {
+		alpha = -alpha;
+	}
+
+	set_q->X = beta*p.X + alpha*q.X;
+	set_q->Y = beta*p.Y + alpha*q.Y;
+	set_q->Z = beta*p.Z + alpha*q.Z;
+	set_q->W = beta*p.W + alpha*q.W;
+}
+
+/*********************************************************************************************** 
+ * Build_Quaternion -- Creates a quaternion from a Matrix                                      * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *   Matrix MUST NOT have scaling!                                                             *
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   02/28/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+Quaternion Build_Quaternion(const Matrix3D & mat)
+{
+	float tr,s;
+	int i,j,k;
+	Quaternion q;
+
+	// sum the diagonal of the rotation matrix
+	tr = mat[0][0] + mat[1][1] + mat[2][2];
+	
+	if (tr > 0.0f) {
+
+		s = sqrt(tr + 1.0);
+		q[3] = s * 0.5;
+		s = 0.5 / s;
+
+		q[0] = (mat[2][1] - mat[1][2]) * s;
+		q[1] = (mat[0][2] - mat[2][0]) * s;
+		q[2] = (mat[1][0] - mat[0][1]) * s;
+
+	} else {
+
+		i=0;
+		if (mat[1][1] > mat[0][0]) i = 1;
+		if (mat[2][2] > mat[i][i]) i = 2;
+		j = _nxt[i];
+		k = _nxt[j];
+
+		s = sqrt((mat[i][i] - (mat[j][j] + mat[k][k])) + 1.0);
+
+		q[i] = s * 0.5;
+		if (s != 0.0) {
+			s = 0.5 / s;
+		}
+
+		q[3] = 	( mat[k][j] - mat[j][k] ) * s;
+		q[j] =	( mat[j][i] + mat[i][j] ) * s;    
+		q[k] =	( mat[k][i] + mat[i][k] ) * s;
+
+	}
+
+	return q;
+}
+
+Quaternion Build_Quaternion(const Matrix3x3 & mat)
+{
+	float tr,s;
+	int i,j,k;
+	Quaternion q;
+
+	// sum the diagonal of the rotation matrix
+	tr = mat[0][0] + mat[1][1] + mat[2][2];
+	
+	if (tr > 0.0) {
+
+		s = sqrt(tr + 1.0);
+		q[3] = s * 0.5;
+		s = 0.5 / s;
+
+		q[0] = (mat[2][1] - mat[1][2]) * s;
+		q[1] = (mat[0][2] - mat[2][0]) * s;
+		q[2] = (mat[1][0] - mat[0][1]) * s;
+	
+	} else {
+
+		i = 0;
+		if (mat[1][1] > mat[0][0]) i = 1;
+		if (mat[2][2] > mat[i][i]) i = 2;
+
+		j = _nxt[i];
+		k = _nxt[j];
+
+		s = sqrt( (mat[i][i] - (mat[j][j]+mat[k][k])) + 1.0);
+
+		q[i] =	s * 0.5;
+		
+		if (s != 0.0) {
+			s = 0.5/s;
+		}
+
+		q[3] = 	( mat[k][j] - mat[j][k] ) * s;
+		q[j] =	( mat[j][i] + mat[i][j] ) * s;    
+		q[k] =	( mat[k][i] + mat[i][k] ) * s;
+	}
+	
+	return q;
+}
+
+Quaternion Build_Quaternion(const Matrix4x4 & mat)
+{
+	float tr,s;
+	int i,j,k;
+	Quaternion q;
+
+	// sum the diagonal of the rotation matrix
+	tr = mat[0][0] + mat[1][1] + mat[2][2];
+	
+	if (tr > 0.0) {
+
+		s = sqrt(tr + 1.0);
+		q[3] = s * 0.5;
+		s = 0.5 / s;
+
+		q[0] = (mat[2][1] - mat[1][2]) * s;
+		q[1] = (mat[0][2] - mat[2][0]) * s;
+		q[2] = (mat[1][0] - mat[0][1]) * s;
+	
+	} else {
+
+		i = 0; 
+		if (mat[1][1] > mat[0][0]) i = 1;
+		if (mat[2][2] > mat[i][i]) i = 2;
+
+		j = _nxt[i];
+		k = _nxt[j];
+
+		s = sqrt( (mat[i][i] - (mat[j][j]+mat[k][k])) + 1.0);
+
+		q[i] =	s * 0.5;
+		if (s != 0.0) {
+			s = 0.5/s;
+		}
+		q[3] = 	( mat[k][j] - mat[j][k] ) * s;
+		q[j] =	( mat[j][i] + mat[i][j] ) * s;    
+		q[k] =	( mat[k][i] + mat[i][k] ) * s;
+	}
+	
+	return q;
+}
+
+
+/*********************************************************************************************** 
+ * Build_Matrix -- Creates a Matrix from a Quaternion                                          * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   02/28/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+Matrix3x3 Build_Matrix3(const Quaternion & q)
+{
+	Matrix3x3 m;
+
+	m[0][0] = (float)(1.0 - 2.0 * (q[1] * q[1] + q[2] * q[2]));
+	m[0][1] = (float)(2.0 * (q[0] * q[1] - q[2] * q[3]));
+	m[0][2] = (float)(2.0 * (q[2] * q[0] + q[1] * q[3]));
+
+	m[1][0] = (float)(2.0 * (q[0] * q[1] + q[2] * q[3]));
+	m[1][1] = (float)(1.0 - 2.0f * (q[2] * q[2] + q[0] * q[0]));
+	m[1][2] = (float)(2.0 * (q[1] * q[2] - q[0] * q[3]));
+
+	m[2][0] = (float)(2.0 * (q[2] * q[0] - q[1] * q[3]));
+	m[2][1] = (float)(2.0 * (q[1] * q[2] + q[0] * q[3]));
+	m[2][2] =(float)(1.0 - 2.0 * (q[1] * q[1] + q[0] * q[0]));
+
+	return m;
+}
+
+Matrix4x4 Build_Matrix4(const Quaternion & q)
+{
+	Matrix4x4 m;
+
+	// initialize the rotation sub-matrix
+	m[0][0] = (float)(1.0 - 2.0 * (q[1] * q[1] + q[2] * q[2]));
+	m[0][1] = (float)(2.0 * (q[0] * q[1] - q[2] * q[3]));
+	m[0][2] = (float)(2.0 * (q[2] * q[0] + q[1] * q[3]));
+
+	m[1][0] = (float)(2.0 * (q[0] * q[1] + q[2] * q[3]));
+	m[1][1] = (float)(1.0 - 2.0f * (q[2] * q[2] + q[0] * q[0]));
+	m[1][2] = (float)(2.0 * (q[1] * q[2] - q[0] * q[3]));
+
+	m[2][0] = (float)(2.0 * (q[2] * q[0] - q[1] * q[3]));
+	m[2][1] = (float)(2.0 * (q[1] * q[2] + q[0] * q[3]));
+	m[2][2] = (float)(1.0 - 2.0 * (q[1] * q[1] + q[0] * q[0]));
+
+	// no translation
+	m[0][3] = m[1][3] = m[2][3] = 0.0f;
+
+	// last row
+	m[3][0] = m[3][1] = m[3][2] = 0.0f;
+	m[3][3] = 1.0f;
+	return m;
+}
+  
+void Quaternion::Rotate_X(float theta)
+{
+	// TODO: optimize this 
+	*this = (*this) * Quaternion(Vector3(1,0,0),theta);
+}
+
+void Quaternion::Rotate_Y(float theta)
+{
+	// TODO: optimize this 
+	*this = (*this) * Quaternion(Vector3(0,1,0),theta);
+}
+
+void Quaternion::Rotate_Z(float theta)
+{
+	// TODO: optimize this 
+	*this = (*this) * Quaternion(Vector3(0,0,1),theta);
+}
+
+float project_to_sphere(float r, float x, float y)
+{
+	const float SQRT2 = 1.41421356f;
+	float t, z;
+	float d = WWMath::Sqrt(x * x + y * y);
+
+	if (d < r * (SQRT2/(2.0f)))			// inside sphere
+		z = WWMath::Sqrt(r * r - d * d);
+	else {								// on hyperbola
+		t = r / SQRT2;
+		z = t * t / d;
+	}
+
+	return z;
+}
+
+
+void Quaternion::Randomize(void)
+{
+	X = ((float) (rand() & 0xFFFF)) / 65536.0f;
+	Y = ((float) (rand() & 0xFFFF)) / 65536.0f;
+	Z = ((float) (rand() & 0xFFFF)) / 65536.0f;
+	W = ((float) (rand() & 0xFFFF)) / 65536.0f;
+	
+	Normalize();
+}
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/quat.h

@@ -0,0 +1,317 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /Commando/Code/wwmath/quat.h 29    5/11/01 7:11p Jani_p $ */
+/*************************************************************************** 
+ ***                  Confidential - Westwood Studios                    *** 
+ *************************************************************************** 
+ *                                                                         * 
+ *                 Project Name : Voxel Technology                         * 
+ *                                                                         * 
+ *                    File Name : QUAT.H                                   * 
+ *                                                                         * 
+ *                   Programmer : Greg Hjelstrom                           * 
+ *                                                                         * 
+ *                   Start Date : 02/24/97                                 * 
+ *                                                                         * 
+ *                  Last Update : February 24, 1997 [GH]                   * 
+ *                                                                         * 
+ *-------------------------------------------------------------------------* 
+ * Functions:                                                              * 
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef QUAT_H
+#define QUAT_H
+
+#include "always.h"
+#include "wwmath.h"
+#include "matrix3.h"
+#include "vector3.h"
+#include "matrix3d.h"
+
+
+class Quaternion
+{
+private:
+
+public:
+
+	// X,Y,Z are the imaginary parts of the quaterion
+	// W is the real part
+	float X;
+	float Y;
+	float Z;
+	float W;
+
+public:
+
+	WWINLINE Quaternion(void) {};
+	WWINLINE explicit Quaternion(bool init) { if (init) { X = 0.0f; Y = 0.0f; Z = 0.0f; W = 1.0f; } }
+	WWINLINE explicit Quaternion(float a, float b, float c, float d) { X=a; Y=b; Z=c; W=d; }
+	WWINLINE explicit Quaternion(const Vector3 & axis,float angle);
+	WWINLINE Quaternion & operator=(const Quaternion & source);
+
+	WWINLINE void		Set(float a = 0.0, float b = 0.0, float c = 0.0, float d = 1.0) { X = a; Y = b; Z = c; W = d; }
+	WWINLINE void		Make_Identity(void) { Set(); };
+	WWINLINE void		Scale(float s) { X = (float)(s*X); Y = (float)(s*Y); Z = (float)(s*Z); W = (float)(s*W); }
+
+	// Array access
+	WWINLINE float &	operator [](int i) { return (&X)[i]; }     
+	WWINLINE const float &  operator [](int i) const { return (&X)[i]; }  
+
+	// Unary operators.  
+	// Remember that q and -q represent the same 3D rotation.  
+	WWINLINE Quaternion operator-() const { return(Quaternion(-X,-Y,-Z,-W)); } 
+	WWINLINE Quaternion operator+() const { return *this; } 
+
+	// Every 3D rotation can be expressed by two different quaternions,  This
+	// function makes the current quaternion convert itself to the representation
+	// which is closer on the 4D unit-hypersphere to the given quaternion.
+	Quaternion & Make_Closest(const Quaternion & qto);
+
+	// Square of the magnitude of the quaternion
+	WWINLINE float Length2(void) const { return (X*X + Y*Y + Z*Z + W*W); }
+
+	// Magnitude of the quaternion
+	WWINLINE float Length(void) const { return WWMath::Sqrt(Length2()); }
+
+	// Make the quaternion unit length
+	void Normalize(void);
+
+	// post-concatenate rotations about the coordinate axes
+	void	Rotate_X(float theta);
+	void	Rotate_Y(float theta);
+	void 	Rotate_Z(float theta);
+
+	// initialize this quaternion randomly (creates a random *unit* quaternion)
+	void	Randomize(void);
+
+	// transform (rotate) a vector with this quaternion
+	WWINLINE Vector3	Rotate_Vector(const Vector3 & v) const;
+	WWINLINE void		Rotate_Vector(const Vector3 & v,Vector3 * set_result) const;
+
+	// verify that none of the members of this quaternion are invalid floats
+	bool		Is_Valid(void) const;
+};
+
+// Inverse of the quaternion (1/q)
+WWINLINE Quaternion Inverse(const Quaternion & a)
+{
+	return Quaternion(-a[0],-a[1],-a[2],a[3]);
+}
+
+// Conjugate of the quaternion
+WWINLINE Quaternion Conjugate(const Quaternion & a)
+{
+	return Quaternion(-a[0],-a[1],-a[2],a[3]);
+}
+
+// Add two quaternions
+WWINLINE Quaternion operator + (const Quaternion & a,const Quaternion & b)
+{
+	return Quaternion(a[0] + b[0], a[1] + b[1], a[2] + b[2], a[3] + b[3]);
+}
+
+// Subract two quaternions
+WWINLINE Quaternion operator - (const Quaternion & a,const Quaternion & b)
+{
+	return Quaternion(a[0] - b[0], a[1] - b[1], a[2] - b[2], a[3] - b[3]);
+}
+
+// Multiply a quaternion by a scalar:
+WWINLINE Quaternion operator * (float scl, const Quaternion & a)
+{
+	return Quaternion(scl*a[0], scl*a[1], scl*a[2], scl*a[3]);
+}
+
+// Multiply a quaternion by a scalar
+WWINLINE Quaternion operator * (const Quaternion & a, float scl)
+{
+	return scl*a;
+}
+
+// Multiply two quaternions
+WWINLINE Quaternion operator * (const Quaternion & a,const Quaternion & b)
+{
+	return Quaternion
+	(
+		a.W*b.X + b.W*a.X + (a.Y*b.Z - b.Y*a.Z),
+		a.W*b.Y + b.W*a.Y - (a.X*b.Z - b.X*a.Z),
+		a.W*b.Z + b.W*a.Z + (a.X*b.Y - b.X*a.Y),
+		a.W * b.W - (a.X * b.X + a.Y * b.Y + a.Z * b.Z)
+	);
+}
+
+// Divide two quaternions
+WWINLINE Quaternion operator / (const Quaternion & a,const Quaternion & b)
+{
+	return a * Inverse(b);
+}
+
+// Normalized version of the quaternion
+WWINLINE Quaternion Normalize(const Quaternion & a)
+{
+	float mag = a.Length();
+	if (0.0f == mag) {
+		return a;
+	} else {
+		float oomag = 1.0f / mag;
+		return Quaternion(a[0] * oomag, a[1] * oomag, a[2] * oomag, a[3] * oomag);
+	}
+}
+
+// This function computes a quaternion based on an axis
+// (defined by the given Vector a) and an angle about
+// which to rotate.  The angle is expressed in radians.
+Quaternion Axis_To_Quat(const Vector3 &a, float angle);
+
+// Pass the x and y coordinates of the last and current position
+// of the mouse, scaled so they are from -1.0 to 1.0
+// The quaternion is the computed as the rotation of a trackball
+// between the two points projected onto a sphere.  This can
+// be used to implement an intuitive viewing control system.
+Quaternion Trackball(float x0, float y0, float x1, float y1, float sphsize);
+
+// Spherical Linear interpolation of quaternions
+//Quaternion Slerp(const Quaternion & a,const Quaternion & b,float t);
+void __cdecl Slerp(Quaternion& result, const Quaternion & a,const Quaternion & b,float t);
+// Fast slerp is innaccurate but multiple times faster
+void __cdecl Fast_Slerp(Quaternion& result, const Quaternion & a,const Quaternion & b,float t);
+
+// Convert a rotation matrix into a quaternion
+Quaternion Build_Quaternion(const Matrix3x3 & matrix);
+Quaternion Build_Quaternion(const Matrix3D & matrix);
+Quaternion Build_Quaternion(const Matrix4x4 & matrix);
+
+// Convert a quaternion into a rotation matrix
+Matrix3x3 Build_Matrix3(const Quaternion & quat);
+Matrix3D &Build_Matrix3D(const Quaternion & q, Matrix3D &out);
+WWINLINE Matrix3D &Build_Matrix3D(const Quaternion & q, Matrix3D &out)
+{
+	out[0][0] = (float)(1.0 - 2.0 * (q[1] * q[1] + q[2] * q[2]));
+	out[0][1] = (float)(2.0 * (q[0] * q[1] - q[2] * q[3]));
+	out[0][2] = (float)(2.0 * (q[2] * q[0] + q[1] * q[3]));
+
+	out[1][0] = (float)(2.0 * (q[0] * q[1] + q[2] * q[3]));
+	out[1][1] = (float)(1.0 - 2.0f * (q[2] * q[2] + q[0] * q[0]));
+	out[1][2] = (float)(2.0 * (q[1] * q[2] - q[0] * q[3]));
+
+	out[2][0] = (float)(2.0 * (q[2] * q[0] - q[1] * q[3]));
+	out[2][1] = (float)(2.0 * (q[1] * q[2] + q[0] * q[3]));
+	out[2][2] =(float)(1.0 - 2.0 * (q[1] * q[1] + q[0] * q[0]));
+
+	// no translation
+	out[0][3] = out[1][3] = out[2][3] = 0.0f;
+
+	return out;
+}
+
+Matrix4x4  Build_Matrix4(const Quaternion & quat);
+
+
+// Some values can be cached if you are performing multiple slerps
+// between the same two quaternions...
+struct SlerpInfoStruct
+{
+	float		SinT;
+	float		Theta;
+	bool		Flip;
+	bool		Linear;
+};
+
+// Cached slerp implementation
+void Slerp_Setup(const Quaternion & p,const Quaternion & q,SlerpInfoStruct * slerpinfo);
+void Cached_Slerp(const Quaternion & p,const Quaternion & q,float alpha,SlerpInfoStruct * slerpinfo,Quaternion * set_q);
+Quaternion Cached_Slerp(const Quaternion & p,const Quaternion & q,float alpha,SlerpInfoStruct * slerpinfo);
+
+WWINLINE Vector3 Quaternion::Rotate_Vector(const Vector3 & v) const
+{
+	float x = W*v.X + (Y*v.Z - v.Y*Z);
+	float y = W*v.Y - (X*v.Z - v.X*Z);
+	float z = W*v.Z + (X*v.Y - v.X*Y);
+	float w = -(X*v.X + Y*v.Y + Z*v.Z);
+
+	return Vector3
+	(
+		w*(-X) + W*x + (y*(-Z) - (-Y)*z),
+		w*(-Y) + W*y - (x*(-Z) - (-X)*z),
+		w*(-Z) + W*z + (x*(-Y) - (-X)*y)
+	);
+}
+
+WWINLINE void Quaternion::Rotate_Vector(const Vector3 & v,Vector3 * result) const
+{
+	assert(result != NULL);
+	
+	float x = W*v.X + (Y*v.Z - v.Y*Z);
+	float y = W*v.Y - (X*v.Z - v.X*Z);
+	float z = W*v.Z + (X*v.Y - v.X*Y);
+	float w = -(X*v.X + Y*v.Y + Z*v.Z);
+
+	result->X = w*(-X) + W*x + (y*(-Z) - (-Y)*z);
+	result->Y = w*(-Y) + W*y - (x*(-Z) - (-X)*z);
+	result->Z = w*(-Z) + W*z + (x*(-Y) - (-X)*y);
+}
+
+WWINLINE bool Quaternion::Is_Valid(void) const
+{
+	return (	WWMath::Is_Valid_Float(X) && 
+				WWMath::Is_Valid_Float(Y) && 
+				WWMath::Is_Valid_Float(Z) &&
+				WWMath::Is_Valid_Float(W) );
+}
+
+WWINLINE bool Equal_Within_Epsilon(const Quaternion &a, const Quaternion &b, float epsilon)
+{
+   return(	(WWMath::Fabs(a.X - b.X) < epsilon) && 
+				(WWMath::Fabs(a.Y - b.Y) < epsilon) && 
+				(WWMath::Fabs(a.Z - b.Z) < epsilon)	&&
+				(WWMath::Fabs(a.W - b.W) < epsilon) );
+}
+
+/*********************************************************************************************** 
+ * Quaternion::operator= -- Assignment operator                                                * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   02/24/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Quaternion & Quaternion::operator = (const Quaternion & source)
+{
+  X = source[0];
+  Y = source[1];
+  Z = source[2];
+  W = source[3];
+
+  return *this;
+}
+
+
+#endif /* QUAT_H */
+
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/rect.h

@@ -0,0 +1,108 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/rect.h                              $*
+ *                                                                                             *
+ *                       Author:: Byon Garrabrant                                              *
+ *                                                                                             *
+ *                     $Modtime:: 4/16/01 10:01a                                              $*
+ *                                                                                             *
+ *                    $Revision:: 9                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef RECT_H
+#define RECT_H
+
+#include "vector2.h"
+
+class RectClass
+{
+public:
+	float	Left;
+	float	Top;
+	float	Right;
+	float	Bottom;
+
+	// Constructors
+	RectClass( void )		{};
+	RectClass( const RectClass & r )	{ Left = r.Left; Top = r.Top; Right = r.Right; Bottom = r.Bottom; }
+	RectClass( float left, float top, float right, float bottom )	{ Left = left; Top = top; Right = right; Bottom = bottom; }
+	RectClass( const Vector2 & top_left, const Vector2 & bottom_right )	{ Left = top_left.X; Top = top_left.Y; Right = bottom_right.X; Bottom = bottom_right.Y; }
+
+	// Assignment
+	RectClass & operator = (const RectClass & r) { Left = r.Left; Top = r.Top; Right = r.Right; Bottom = r.Bottom; return *this; }	
+	void	Set(float left, float top, float right, float bottom) { Left = left; Top = top; Right = right; Bottom = bottom; }
+	void	Set( const Vector2 & top_left, const Vector2 & bottom_right )	{ Left = top_left.X; Top = top_left.Y; Right = bottom_right.X; Bottom = bottom_right.Y; }
+	void	Set(const RectClass & r) { Left = r.Left; Top = r.Top; Right = r.Right; Bottom = r.Bottom; }
+
+	// Access
+	float	Width(void) const		{ return Right - Left; }
+	float	Height(void) const	{ return Bottom - Top; }
+	Vector2 Center( void ) const { return Vector2( (Left + Right)/2, (Top + Bottom)/2 ); }
+	Vector2 Extent( void ) const { return Vector2( (Right - Left)/2, (Bottom - Top)/2 ); }
+	Vector2 Upper_Left( void ) const { return Vector2( Left, Top ); }
+	Vector2 Lower_Right( void ) const { return Vector2( Right, Bottom ); }
+	Vector2 Upper_Right( void ) const { return Vector2( Right, Top ); }
+	Vector2 Lower_Left( void ) const { return Vector2( Left, Bottom ); }
+
+	// Scaling
+	RectClass & operator *= (float k) { return Scale( k ); }
+	RectClass & operator /= (float k) { return Scale( 1/k ); }
+	RectClass & Scale_Relative_Center( float k )	{ Vector2 center = Center(); *this-=center; Left*=k; Top*=k; Right*=k; Bottom*=k; *this+=center; return *this; }
+	RectClass & Scale( float k )				{ Left*=k; Top*=k; Right*=k; Bottom*=k; return *this; }
+	RectClass & Scale( const Vector2 &k )				{ Left*=k.X; Top*=k.Y; Right*=k.X; Bottom*=k.Y; return *this; }
+	RectClass & Inverse_Scale( const Vector2 &k )	{ Left/=k.X; Top/=k.Y; Right/=k.X; Bottom/=k.Y; return *this; }
+
+	// Offset
+	RectClass & operator += ( const Vector2 & o ) { Left+=o.X; Top+=o.Y; Right+=o.X; Bottom+=o.Y; return *this; }
+	RectClass & operator -= ( const Vector2 & o ) { Left-=o.X; Top-=o.Y; Right-=o.X; Bottom-=o.Y; return *this; }
+
+	// Inflate
+	void	Inflate( const Vector2 & o ) { Left-=o.X; Top-=o.Y; Right+=o.X; Bottom+=o.Y; }
+
+	// Union
+	RectClass & operator += ( const RectClass & r ) { Left=MIN(Left,r.Left); Top=MIN(Top,r.Top); Right=MAX(Right,r.Right); Bottom=MAX(Bottom,r.Bottom); return *this; }
+
+	// Equality
+	bool operator == ( const RectClass &rval ) const { return (rval.Left == Left) && (rval.Right == Right) && (rval.Top == Top) && (rval.Bottom == Bottom); }
+	bool operator != ( const RectClass &rval ) const { return (rval.Left != Left) || (rval.Right != Right) || (rval.Top != Top) || (rval.Bottom != Bottom); }
+
+	// Containment
+	bool	Contains ( const Vector2 &pos ) const { return (pos.X >= Left) && (pos.X <= Right) && (pos.Y >= Top) && (pos.Y <= Bottom); }
+
+	// Misc
+	void	Snap_To_Units( const Vector2 & u ) { Left = (int)(Left / u.X + 0.5f) * u.X; Right = (int)(Right / u.X + 0.5f) * u.X; Top = (int)(Top / u.Y + 0.5f) * u.Y; Bottom = (int)(Bottom / u.Y + 0.5f) * u.Y; }
+
+};
+
+#endif
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/sphere.h

@@ -0,0 +1,552 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : wwmath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/WWMath/sphere.h                              $*
+ *                                                                                             *
+ *                       Author:: Greg_h                                                       *
+ *                                                                                             *
+ *                     $Modtime:: 3/29/01 10:37a                                              $*
+ *                                                                                             *
+ *                    $Revision:: 18                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   SphereClass::SphereClass -- constructor                                                   *
+ *   SphereClass::Init -- assign a new center and radius to this sphere                        *
+ *   SphereClass::Re_Center -- move the center, update radius to enclose old sphere            *
+ *   SphereClass::Add_Sphere -- expands 'this' sphere to enclose the given sphere              *
+ *   SphereClass::Transform -- transforms this sphere                                          *
+ *   SphereClass::Volume -- returns the volume of this sphere                                  *
+ *   SphereClass::operator+= -- 'Add' a sphere to this one                                     *
+ *   SphereClass::operator *= -- transform this sphere by the given radius                     *
+ *   Spheres_Intersect -- test whether two spheres intersect                                   *
+ *   Add_Spheres -- Add two spheres together, creating sphere which encloses both              *
+ *   operator + -- Add two spheres together, creating a sphere which encloses both             *
+ *   Transform Sphere -- transform a sphere                                                    *
+ *   Transform_Sphere -- transform a sphere                                                    *
+ *   operator * -- Transform a sphere                                                          *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef SPHERE_H
+#define SPHERE_H
+
+#include "always.h"
+#include "vector3.h"
+#include "matrix3d.h"
+
+
+/////////////////////////////////////////////////////////////////////
+// SphereClass
+//
+// Center - center of the sphere.
+// Radius - radius of the sphere
+//
+/////////////////////////////////////////////////////////////////////
+class SphereClass
+{
+public:
+	inline SphereClass(void) { };
+	inline SphereClass(const Vector3 & center,float radius) { Init(center,radius); }
+	inline SphereClass(const Matrix3D& mtx,const Vector3 & center,float radius) { Init(mtx,center,radius); }
+	inline SphereClass(const Vector3 & center,const SphereClass & s0);
+	inline SphereClass(const Vector3 *Position, const int VertCount);
+
+	inline void Init(const Vector3 & pos,float radius);
+	inline void Init(const Matrix3D& mtx,const Vector3 & pos,float radius);
+	inline void Re_Center(const Vector3 & center);
+	inline void Add_Sphere(const SphereClass & s);
+	inline void Transform(const Matrix3D & tm);
+	inline float Volume(void) const;
+	
+	inline SphereClass & operator += (const SphereClass & s);
+	inline SphereClass & operator *= (const Matrix3D & m);
+
+	Vector3	Center;
+	float		Radius;
+};
+
+
+/***********************************************************************************************
+ * SphereClass::SphereClass -- constructor                                                     *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline SphereClass::SphereClass(const Vector3 & center,const SphereClass & s0)
+{
+	float dist = (s0.Center - center).Length();
+	Center = center;
+	Radius = s0.Radius + dist;
+}
+
+inline SphereClass::SphereClass(const Vector3 *Position,const int VertCount)
+{
+	int i;
+	double dx,dy,dz;
+
+	// bounding sphere
+	// Using the algorithm described in Graphics Gems I page 301.
+	// This algorithm supposedly generates a bounding sphere within
+	// 5% of the optimal one but is much faster and simpler to implement.
+	Vector3 xmin(Position[0].X,Position[0].Y,Position[0].Z);
+	Vector3 xmax(Position[0].X,Position[0].Y,Position[0].Z);
+	Vector3 ymin(Position[0].X,Position[0].Y,Position[0].Z);
+	Vector3 ymax(Position[0].X,Position[0].Y,Position[0].Z);
+	Vector3 zmin(Position[0].X,Position[0].Y,Position[0].Z);
+	Vector3 zmax(Position[0].X,Position[0].Y,Position[0].Z);
+
+
+	// FIRST PASS:
+	// finding the 6 minima and maxima points
+	for (i=1; i<VertCount; i++) {
+		if (Position[i].X < xmin.X) {
+			xmin.X = Position[i].X; xmin.Y = Position[i].Y; xmin.Z = Position[i].Z;
+		}
+		if (Position[i].X > xmax.X) {
+			xmax.X = Position[i].X; xmax.Y = Position[i].Y; xmax.Z = Position[i].Z;
+		}
+		if (Position[i].Y < ymin.Y) {
+			ymin.X = Position[i].X; ymin.Y = Position[i].Y; ymin.Z = Position[i].Z;
+		}
+		if (Position[i].Y > ymax.Y) {
+			ymax.X = Position[i].X; ymax.Y = Position[i].Y; ymax.Z = Position[i].Z;
+		}
+		if (Position[i].Z < zmin.Z) {
+			zmin.X = Position[i].X; zmin.Y = Position[i].Y; zmin.Z = Position[i].Z;
+		}
+		if (Position[i].Z > zmax.Z) {
+			zmax.X = Position[i].X; zmax.Y = Position[i].Y; zmax.Z = Position[i].Z;
+		}
+	}
+	
+	// xspan = distance between the 2 points xmin and xmax squared.
+	// same goes for yspan and zspan.
+	dx = xmax.X - xmin.X;
+	dy = xmax.Y - xmin.Y;
+	dz = xmax.Z - xmin.Z;
+	double xspan = dx*dx + dy*dy + dz*dz;
+
+	dx = ymax.X - ymin.X;
+	dy = ymax.Y - ymin.Y;
+	dz = ymax.Z - ymin.Z;
+	double yspan = dx*dx + dy*dy + dz*dz;
+
+	dx = zmax.X - zmin.X;
+	dy = zmax.Y - zmin.Y;
+	dz = zmax.Z - zmin.Z;
+	double zspan = dx*dx + dy*dy + dz*dz;
+
+
+	// Set points dia1 and dia2 to the maximally separated pair
+	// This will be the diameter of the initial sphere
+	Vector3 dia1 = xmin;
+	Vector3 dia2 = xmax;
+	double maxspan = xspan;
+
+	if (yspan > maxspan) {
+		maxspan = yspan;
+		dia1 = ymin;
+		dia2 = ymax;
+	}
+	if (zspan > maxspan) {
+		maxspan = zspan;
+		dia1 = zmin;
+		dia2 = zmax;
+	}
+
+	
+	// Compute initial center and radius and radius squared
+	Vector3 center;
+	center.X = (dia1.X + dia2.X) / 2.0f;
+	center.Y = (dia1.Y + dia2.Y) / 2.0f;
+	center.Z = (dia1.Z + dia2.Z) / 2.0f;
+
+	dx = dia2.X - center.X;
+	dy = dia2.Y - center.Y;
+	dz = dia2.Z - center.Z;
+
+	double radsqr = dx*dx + dy*dy + dz*dz;
+	double radius = sqrt(radsqr);
+
+	
+	// SECOND PASS:
+	// Increment current sphere if any points fall outside of it.
+	for (i=0; i<VertCount; i++) {
+
+		dx = Position[i].X - center.X;
+		dy = Position[i].Y - center.Y;
+		dz = Position[i].Z - center.Z;
+		
+		double testrad2 = dx*dx + dy*dy + dz*dz;
+
+		if (testrad2 > radsqr) {
+			
+			// this point was outside the old sphere, compute a new
+			// center point and radius which contains this point
+			double testrad = sqrt(testrad2);
+			
+			// adjust center and radius
+			radius = (radius + testrad) / 2.0;
+			radsqr = radius * radius;
+
+			double oldtonew = testrad - radius;
+			center.X = (radius * center.X + oldtonew * Position[i].X) / testrad;
+			center.Y = (radius * center.Y + oldtonew * Position[i].Y) / testrad;
+			center.Z = (radius * center.Z + oldtonew * Position[i].Z) / testrad;
+		}
+	}
+
+	Center = center;
+	Radius = radius;
+}
+
+
+/***********************************************************************************************
+ * SphereClass::Init -- assign a new center and radius to this sphere                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline void SphereClass::Init(const Vector3 & pos,float radius)
+{
+	Center = pos;
+	Radius = radius;
+}
+
+/***********************************************************************************************
+ * SphereClass::Init -- assign a new center and radius to this sphere                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline void SphereClass::Init(const Matrix3D& mtx, const Vector3 & pos,float radius)
+{
+#ifdef ALLOW_TEMPORARIES
+	Center = mtx * pos;
+#else
+	mtx.mulVector3(pos, Center);
+#endif
+	Radius = radius;
+}
+
+
+/***********************************************************************************************
+ * SphereClass::Re_Center -- move the center, update radius to enclose old sphere              *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline void SphereClass::Re_Center(const Vector3 & center)
+{
+	float dist = (Center - center).Length();
+	Center = center;
+	Radius += dist;
+}
+
+
+/***********************************************************************************************
+ * SphereClass::Add_Sphere -- expands 'this' sphere to enclose the given sphere                *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline void SphereClass::Add_Sphere(const SphereClass & s)
+{
+	if (s.Radius == 0.0f) return;
+
+	float dist = (s.Center - Center).Length();
+	if (dist == 0.0f) {
+		Radius = (Radius > s.Radius) ? Radius : s.Radius;
+		return;
+	}
+
+	float rnew = (dist + Radius + s.Radius) / 2.0f;
+
+   // If rnew is smaller than either of the two sphere radii (it can't be
+   // smaller than both of them), this means that the smaller sphere is
+   // completely inside the larger, and the result of adding the two is
+   // simply the larger sphere. If rnew isn't less than either of them, it is
+   // the new radius - calculate the new center.
+   if (rnew < Radius) {
+      // The existing sphere is the result - do nothing.
+   } else {
+      if (rnew < s.Radius) {
+         // The new sphere is the result:
+         Init(s.Center, s.Radius);
+      } else {
+         // Neither sphere is completely inside the other, so rnew is the new
+         // radius - calculate the new center
+	      float lerp = (rnew - Radius) / dist;
+	      Vector3 center = (s.Center - Center) * lerp + Center;
+	      Init(center, rnew);
+      }
+   }
+}
+
+/***********************************************************************************************
+ * SphereClass::Transform -- transforms this sphere                                            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/12/99    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline void SphereClass::Transform(const Matrix3D & tm)
+{
+	// warning, assumes Orthogonal matrix
+#ifdef ALLOW_TEMPORARIES
+	Center = tm * Center;
+#else
+	tm.mulVector3(Center, Center);
+#endif
+}
+
+
+/***********************************************************************************************
+ * SphereClass::Volume -- returns the volume of this sphere                                    *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/22/99    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline float SphereClass::Volume(void) const
+{
+	return (4.0 / 3.0) * WWMATH_PI * (Radius * Radius * Radius);
+}
+
+/***********************************************************************************************
+ * SphereClass::operator+= -- 'Add' a sphere to this one                                       *
+ *                                                                                             *
+ *    Expands 'this' sphere to also enclose the given sphere                                   *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline SphereClass & SphereClass::operator += (const SphereClass & s)
+{
+	Add_Sphere(s);
+	return *this;
+}
+
+
+/***********************************************************************************************
+ * SphereClass::operator *= -- transform this sphere by the given radius                       *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline SphereClass & SphereClass::operator *= (const Matrix3D & m)
+{
+	Init(m, Center, Radius);
+	return *this;
+}
+
+
+/***********************************************************************************************
+ * Spheres_Intersect -- test whether two spheres intersect                                     *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline bool Spheres_Intersect(const SphereClass & s0,const SphereClass & s1) 
+{
+	Vector3 delta = s0.Center - s1.Center;
+	float dist2 = Vector3::Dot_Product(delta, delta);
+
+	if (dist2 < (s0.Radius + s1.Radius) * (s0.Radius + s1.Radius)) {
+		return true;
+	} else {
+		return false;
+	}
+}
+
+
+/***********************************************************************************************
+ * Add_Spheres -- Add two spheres together, creating sphere which encloses both                *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline SphereClass Add_Spheres(const SphereClass & s0, const SphereClass & s1)
+{
+	if (s0.Radius == 0.0f) {
+		return s1;
+	} else {
+		SphereClass result(s0);
+		result.Add_Sphere(s1);
+		return result;
+	}
+}
+
+
+/***********************************************************************************************
+ * operator + -- Add two spheres together, creating a sphere which encloses both               *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline SphereClass operator + (const SphereClass & s0,const SphereClass & s1)
+{
+	return Add_Spheres(s0,s1);
+}
+
+
+/***********************************************************************************************
+ * Transform Sphere -- transform a sphere                                                      *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline SphereClass Transform_Sphere(const Matrix3D & m, const SphereClass & s)
+{
+	// Warning, assumes Orthogonal matrix
+	return SphereClass(m,s.Center,s.Radius);
+}
+
+
+/***********************************************************************************************
+ * Transform_Sphere -- transform a sphere                                                      *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline void Transform_Sphere(const Matrix3D & m, const SphereClass & s,SphereClass & res)
+{
+	// warning, assumes Orthogonal matrix
+#ifdef ALLOW_TEMPORARIES
+	res.Center = m*s.Center;
+#else
+	m.mulVector3(s.Center, res.Center);
+#endif
+	res.Radius = s.Radius;
+}
+
+
+/***********************************************************************************************
+ * operator * -- Transform a sphere                                                            *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   8/12/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+inline SphereClass operator * (const Matrix3D & m, const SphereClass & s)
+{
+	return Transform_Sphere(m,s);
+}
+
+
+
+#endif
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/tcbspline.cpp

@@ -0,0 +1,248 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /VSS_Sync/wwmath/tcbspline.cpp                              $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 6/13/01 2:18p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 6                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "tcbspline.h"
+#include "wwdebug.h"
+#include "persistfactory.h"
+#include "wwmathids.h"
+#include "wwhack.h"
+
+
+/*
+** Force-Link this module because the linker can't detect that we actually need it...
+*/
+DECLARE_FORCE_LINK(tcbspline);
+
+/*
+** Save-Load stuff
+*/
+SimplePersistFactoryClass<TCBSpline3DClass,WWMATH_CHUNKID_TCBSPLINE3D>	_TCBSpline3DFactory;
+
+enum 
+{
+	// ID's used by TCBSpline3D
+	TCB3D_CHUNK_HERMITE3D					= 0x02071009,	
+	TCB3D_CHUNK_PARAMS,			
+};
+
+
+/*
+** TCBSpline3DClass Implemenation
+*/
+
+int TCBSpline3DClass::Add_Key(const Vector3 & point,float t)
+{
+	int index;
+	index = HermiteSpline3DClass::Add_Key(point,t);
+
+	TCBClass params;
+	params.Tension = 0.0f;
+	params.Continuity = 0.0f;
+	params.Bias = 0.0f;
+	Params.Insert(index,params);
+	return index;
+}
+
+void TCBSpline3DClass::Remove_Key(int i)
+{
+	HermiteSpline3DClass::Remove_Key(i);
+	Params.Delete(i);
+}
+
+void TCBSpline3DClass::Clear_Keys(void)
+{
+	HermiteSpline3DClass::Clear_Keys();
+	Params.Clear();
+}
+
+void TCBSpline3DClass::Set_TCB_Params(int i,float tension,float continuity,float bias)
+{
+	WWASSERT(i >= 0);
+	WWASSERT(i < Params.Count());
+	Params[i].Tension = tension;
+	Params[i].Continuity = continuity;
+	Params[i].Bias = bias;
+	TangentsDirty = true;
+}
+
+void TCBSpline3DClass::Get_TCB_Params(int i,float *tension,float *continuity,float *bias)
+{
+	if (tension) *tension = Params[i].Tension;
+	if (continuity) *continuity = Params[i].Continuity;
+	if (bias) *bias = Params[i].Bias;
+}
+
+void TCBSpline3DClass::Update_Tangents(void)
+{
+	if (Keys.Count() < 2) {
+		for (int i=0; i<Keys.Count(); i++) {
+			Tangents[0].InTangent.Set(0,0,0);
+			Tangents[0].OutTangent.Set(0,0,0);
+		}
+	}
+
+	// First and Last Key: 
+	// Only need to compute the OutTangent for key[0] and the InTangent for key[end]
+	int end = Keys.Count() - 1;
+	Tangents[0].InTangent.Set(0,0,0);
+	Tangents[end].OutTangent.Set(0,0,0);
+
+	if (IsLooping) {
+
+		// This really only works if the start and end points have the same position...
+		// Also just using the TCB params from p0 for both
+		float k0 = 0.5f * ((1-Params[0].Tension) * (1-Params[0].Continuity) * (1-Params[0].Bias));
+		float k1 = 0.5f * ((1-Params[0].Tension) * (1+Params[0].Continuity) * (1+Params[0].Bias));
+		float k2 = 0.5f * ((1-Params[0].Tension) * (1+Params[0].Continuity) * (1-Params[0].Bias));
+		float k3 = 0.5f * ((1-Params[0].Tension) * (1-Params[0].Continuity) * (1+Params[0].Bias));
+
+		Vector3 dp_in;
+		Vector3 dp_out;
+		Vector3::Subtract(Keys[0].Point,Keys[end-1].Point,&dp_in);
+		Vector3::Subtract(Keys[1].Point,Keys[0].Point,&dp_out);
+
+		Vector3::Add(k0*dp_in, k1*dp_out, &Tangents[end].InTangent);
+		Vector3::Add(k2*dp_out, k3*dp_in, &Tangents[0].OutTangent);
+		
+	} else {
+		
+		float k2 = 0.25f * ((1-Params[0].Tension) * (1+Params[0].Continuity) * (1-Params[0].Bias));
+		float k3 = 0.25f * ((1-Params[0].Tension) * (1-Params[0].Continuity) * (1+Params[0].Bias));
+
+		Vector3 dp_in;
+		Vector3 dp_out;
+		Vector3::Subtract(Keys[1].Point,Keys[0].Point,&dp_out);
+		dp_in = dp_out;
+		Vector3::Add(k2*dp_out, k3*dp_in, &Tangents[0].OutTangent);
+
+		float k0 = 0.25f * ((1-Params[0].Tension) * (1-Params[0].Continuity) * (1-Params[0].Bias));
+		float k1 = 0.25f * ((1-Params[0].Tension) * (1+Params[0].Continuity) * (1+Params[0].Bias));
+		Vector3::Subtract(Keys[end].Point,Keys[end-1].Point,&dp_in);
+		dp_out = dp_in;
+		Vector3::Add(k0*dp_out, k1*dp_in, &Tangents[end].InTangent);
+	}
+
+	float total_time = (Keys[1].Time - Keys[0].Time) + (Keys[end].Time - Keys[end-1].Time);
+	float in_factor = 2.0f * (Keys[end].Time - Keys[end-1].Time) / total_time;
+	float out_factor = 2.0f * (Keys[1].Time - Keys[0].Time) / total_time;
+	Tangents[end].InTangent *= in_factor;
+	Tangents[0].OutTangent *= out_factor;
+
+
+	// Now compute the tangents of all of the normal keys...
+	for (int pi=1;pi<Keys.Count() - 1; pi++) {
+
+		float k0 = 0.5f * ((1-Params[pi].Tension) * (1-Params[pi].Continuity) * (1-Params[pi].Bias));
+		float k1 = 0.5f * ((1-Params[pi].Tension) * (1+Params[pi].Continuity) * (1+Params[pi].Bias));
+		float k2 = 0.5f * ((1-Params[pi].Tension) * (1+Params[pi].Continuity) * (1-Params[pi].Bias));
+		float k3 = 0.5f * ((1-Params[pi].Tension) * (1-Params[pi].Continuity) * (1+Params[pi].Bias));
+
+		Vector3 dp_in;
+		Vector3 dp_out;
+		Vector3::Subtract(Keys[pi].Point,Keys[pi-1].Point,&dp_in);
+		Vector3::Subtract(Keys[pi+1].Point,Keys[pi].Point,&dp_out);
+
+		Vector3::Add(k0*dp_out, k1*dp_in, &Tangents[pi].InTangent);
+		Vector3::Add(k2*dp_out, k3*dp_in, &Tangents[pi].OutTangent);
+
+		float total_time = (Keys[pi+1].Time - Keys[pi-1].Time);
+		float in_factor = 2.0f * (Keys[pi].Time - Keys[pi-1].Time) / total_time;
+		float out_factor = 2.0f * (Keys[pi+1].Time - Keys[pi].Time) / total_time;
+
+		Tangents[pi].InTangent *= in_factor;		// compensating for un-even keys
+		Tangents[pi].OutTangent *= out_factor;
+
+	}
+	TangentsDirty = false;
+}
+
+const PersistFactoryClass & TCBSpline3DClass::Get_Factory(void) const
+{
+	return _TCBSpline3DFactory;
+}
+
+bool TCBSpline3DClass::Save(ChunkSaveClass &csave)
+{
+	csave.Begin_Chunk(TCB3D_CHUNK_HERMITE3D);
+	HermiteSpline3DClass::Save(csave);
+	csave.End_Chunk();
+	
+	csave.Begin_Chunk(TCB3D_CHUNK_PARAMS);
+	for (int i=0; i<Params.Count(); i++) {
+		csave.Write(&(Params[i].Tension),sizeof(Params[i].Tension));
+		csave.Write(&(Params[i].Continuity),sizeof(Params[i].Continuity));
+		csave.Write(&(Params[i].Bias),sizeof(Params[i].Bias));
+	}
+	csave.End_Chunk();
+	return true;
+}
+
+bool TCBSpline3DClass::Load(ChunkLoadClass &cload)
+{
+	int i;
+	TCBClass param;
+
+	// reset the keys
+	Params.Delete_All();
+
+	// read in the chunks
+	while (cload.Open_Chunk()) {
+		
+		switch(cload.Cur_Chunk_ID()) 
+		{
+			case TCB3D_CHUNK_HERMITE3D:
+				HermiteSpline3DClass::Load(cload);
+				break;
+
+			case TCB3D_CHUNK_PARAMS:
+				for (i=0; i<Keys.Count(); i++) {
+					cload.Read(&(param.Tension),sizeof(param.Tension));
+					cload.Read(&(param.Continuity),sizeof(param.Continuity));
+					cload.Read(&(param.Bias),sizeof(param.Bias));
+					Params.Add(param);
+				}
+				break;
+
+			default:
+				WWDEBUG_SAY(("Unhandled Chunk: 0x%X File: %s Line: %d\r\n",__FILE__,__LINE__));
+				break;
+		}
+		cload.Close_Chunk();
+	}
+
+	return true;
+}

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/tcbspline.h

@@ -0,0 +1,86 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /VSS_Sync/wwmath/tcbspline.h                                $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 6/13/01 2:18p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 4                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef TCBSPLINE_H
+#define TCBSPLINE_H
+
+#include "hermitespline.h"
+
+/*
+** TCBSpline3DClass
+** Tension-Continuity-Bias splines.  Otherwise known as Kochanek-Bartels cubic splines
+*/
+class TCBSpline3DClass : public HermiteSpline3DClass
+{
+public:
+
+	virtual int			Add_Key(const Vector3 & point,float t);
+	virtual void		Remove_Key(int i);
+	virtual void		Clear_Keys(void);
+
+	virtual void		Set_TCB_Params(int i,float tension,float continuity,float bias);
+	virtual void		Get_TCB_Params(int i,float *tension,float *continuity,float *bias);
+
+	void					Update_Tangents(void);
+
+	// save-load support
+	virtual const PersistFactoryClass &	Get_Factory(void) const;
+	virtual bool								Save(ChunkSaveClass &csave);
+	virtual bool								Load(ChunkLoadClass &cload);
+
+protected:	
+
+	class TCBClass
+	{
+	public:
+		float				Tension;
+		float				Continuity;
+		float				Bias;
+		bool				operator == (const TCBClass & that) { return ((Tension == that.Tension) && (Continuity == that.Continuity) && (Bias == that.Bias)); }
+		bool				operator != (const TCBClass & that) { return !TCBClass::operator == (that); }
+	};
+
+	DynamicVectorClass<TCBClass> Params;
+};
+
+
+#endif
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/tri.cpp

@@ -0,0 +1,363 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/WWMath/tri.cpp                               $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 5/03/01 3:41p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 8                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   TriClass::Find_Dominant_Plane -- returns indices of the axes of the dominant plane        *
+ *   TriClass::Contains_Point -- performs 2D point-in-triangle test.                           *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "tri.h"
+#include "vector2.h"
+
+
+struct FDPRec 
+{ 
+	int axis1; 
+	int axis2; 
+	int axis3; 
+};
+
+static inline void find_dominant_plane_fast(const TriClass & tri, FDPRec& info)
+{
+	static const FDPRec dominance[3] =
+	{
+		{ 1, 2, 0 },		// Dominant is the X axis
+		{ 0, 2, 1 },		// Dominant is the Y axis
+		{ 0, 1, 2 }			// Dominant is the Z axis
+	};
+
+	/*
+	** Find the largest component of the normal
+	*/
+	float x = WWMath::Fabs(tri.N->X);
+	float y = WWMath::Fabs(tri.N->Y);
+	float z = WWMath::Fabs(tri.N->Z);
+
+	float val = x;
+	int ni = 0;
+
+	if (y > val) 
+	{
+		ni = 1;
+		val = y;
+	}
+
+	if (z > val) 
+	{
+		ni = 2;
+	}
+
+	info = dominance[ni];
+}
+
+static inline void find_dominant_plane(const TriClass & tri, int * axis1,int * axis2,int * axis3)
+{
+	/*
+	** Find the largest component of the normal
+	*/
+	int ni = 0;
+	float x = WWMath::Fabs(tri.N->X);
+	float y = WWMath::Fabs(tri.N->Y);
+	float z = WWMath::Fabs(tri.N->Z);
+	float val = x;
+
+	if (y > val) {
+		ni = 1;
+		val = y;
+	}
+
+	if (z > val) {
+		ni = 2;
+	}
+
+	/*
+	** return the indices of the two axes perpendicular
+	*/
+	switch (ni) 
+	{
+	case 0: 
+		// Dominant is the X axis
+		*axis1 = 1;
+		*axis2 = 2;
+		*axis3 = 0;
+		break;
+	case 1: 
+		// Dominant is the Y axis
+		*axis1 = 0;
+		*axis2 = 2;
+		*axis3 = 1;
+		break;
+	case 2: 
+		// Dominant is the Z axis
+		*axis1 = 0;
+		*axis2 = 1;
+		*axis3 = 2;
+		break;
+	}
+}
+
+
+
+/***********************************************************************************************
+ * TriClass::Find_Dominant_Plane -- returns indices of the axes of the dominant plane          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/24/99    GTH : Created.                                                                 *
+ *=============================================================================================*/
+void TriClass::Find_Dominant_Plane(int * axis1,int * axis2) const
+{
+	/*
+	** Find the largest component of the normal
+	*/
+	int ni = 0;
+	float x = WWMath::Fabs(N->X);
+	float y = WWMath::Fabs(N->Y);
+	float z = WWMath::Fabs(N->Z);
+	float val = x;
+
+	if (y > val) {
+		ni = 1;
+		val = y;
+	}
+
+	if (z > val) {
+		ni = 2;
+	}
+
+	/*
+	** return the indices of the two axes perpendicular
+	*/
+	switch (ni) 
+	{
+	case 0: 
+		// Dominant is the X axis
+		*axis1 = 1;
+		*axis2 = 2;
+		break;
+	case 1: 
+		// Dominant is the Y axis
+		*axis1 = 0;
+		*axis2 = 2;
+		break;
+	case 2: 
+		// Dominant is the Z axis
+		*axis1 = 0;
+		*axis2 = 1;
+		break;
+	}
+}
+
+
+/***********************************************************************************************
+ * TriClass::Contains_Point -- performs 2D point-in-triangle test.                             *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ * Assumes that the point is in the plane of the triangle... use this after you've intersected *
+ * a ray with the plane of the triangle.                                                       *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   3/24/99    GTH : Created.                                                                 *
+ *=============================================================================================*/
+bool TriClass::Contains_Point(const Vector3 & ipoint) const
+{
+#if 0
+	/*
+	** Perform the test in 2d on the plane which the normal
+	** is most perpendicular to. (copied from E.Cosky's intersection code)
+	*/
+	int axis1 = 0;
+	int axis2 = 0;
+	Find_Dominant_Plane(&axis1,&axis2);
+
+#if 1
+	unsigned char flags;	// dummy variable passed into function and not used here
+	return Point_In_Triangle_2D(*V[0], *V[1], *V[2], ipoint, axis1, axis2, flags);
+#else
+	float u0 = ipoint[axis1] - (*V[0])[axis1];
+	float v0 = ipoint[axis2] - (*V[0])[axis2];
+
+	/*
+	** determine the 2d vectors on the dominant plane from the first vertex to the other two
+	*/
+	float u1 = (*V[1])[axis1] - (*V[0])[axis1]; 
+	float v1 = (*V[1])[axis2] - (*V[0])[axis2];
+	float	u2 = (*V[2])[axis1] - (*V[0])[axis1]; 
+	float	v2 = (*V[2])[axis2] - (*V[0])[axis2];
+
+	float alpha, beta;
+	bool intersect = false; 
+
+	// calculate alpha and beta as normalized (0..1) percentages across the 2d projected triangle
+	// and do bounds checking (sum <= 1)  to determine whether or not the triangle intersection occurs.
+	if (u1 == 0)    {
+	  beta = u0 / u2;
+	  if ((beta >= 0) && (beta <= 1)) {
+			alpha = (v0 - beta * v2) / v1;
+			intersect = ((alpha >= 0) && ((alpha + beta) <= 1 + WWMATH_EPSILON));
+	  }
+	} else {
+	  beta = (v0 * u1 - u0 * v1) / (v2 * u1 - u2 * v1);
+	  if ((beta >= 0) && (beta <= 1)) {
+			alpha = (u0 - beta * u2) / u1;
+			intersect = ((alpha >= 0) && ((alpha + beta) <= 1 + WWMATH_EPSILON));
+	  }
+	}
+
+	return intersect;
+#endif
+#endif
+/*
+** New cross-product based point-containment
+*/
+#if 0
+	int vi;
+	int axis3 = 0;
+
+	for (vi=0; vi<3; vi++) {
+		if ((axis1 != vi) && (axis2 != vi))	axis3 = vi;
+	}
+
+	Vector3 test_point = ipoint;
+	test_point[axis3] = 0.0f;
+
+	Vector3 points[3];
+	for (vi=0; vi<3; vi++) {
+		points[vi] = *(V[vi]);
+		points[vi][axis3] = 0.0f;
+	}
+	
+	bool side[3];
+	Vector3 edge;
+	Vector3 cross;
+	Vector3 dp;
+
+	for (vi=0; vi<3; vi++) {
+		edge = points[(vi+1)%3] - points[vi];
+		dp = test_point - points[vi];
+	
+		Vector3::Cross_Product(dp,edge,&cross);
+		side[vi] = (cross[axis3] > 0.0f);
+	}
+
+	bool my_intersect = ((side[0] == side[1]) && (side[1] == side[2]));
+	return my_intersect;
+#endif
+
+
+/*
+** "Optimized" version
+*/
+#if 1
+#if 0
+
+	// srj opto version
+	/// @todo srj -- profile me to see if this is actually faster
+
+	FDPRec info;
+	find_dominant_plane_fast(*this, info);
+
+	/*
+	** Compute the 2D cross product of edge0 with a vector to the point
+	*/
+
+	float edge_x, edge_y, dp_x, dp_y, cross;
+	bool side0, side1, side2;
+
+	edge_x = (*V[1])[info.axis1] - (*V[0])[info.axis1];
+	edge_y = (*V[1])[info.axis2] - (*V[0])[info.axis2];
+	dp_x = ipoint[info.axis1] - (*V[0])[info.axis1];
+	dp_y = ipoint[info.axis2] - (*V[0])[info.axis2];
+	cross = edge_x * dp_y - edge_y * dp_x;
+	side0 = (cross >= 0.0f);
+
+	edge_x = (*V[2])[info.axis1] - (*V[1])[info.axis1];
+	edge_y = (*V[2])[info.axis2] - (*V[1])[info.axis2];
+	dp_x = ipoint[info.axis1] - (*V[1])[info.axis1];
+	dp_y = ipoint[info.axis2] - (*V[1])[info.axis2];
+	cross = edge_x * dp_y - edge_y * dp_x;
+	side1 = (cross >= 0.0f);
+
+	edge_x = (*V[0])[info.axis1] - (*V[2])[info.axis1];
+	edge_y = (*V[0])[info.axis2] - (*V[2])[info.axis2];
+	dp_x = ipoint[info.axis1] - (*V[2])[info.axis1];
+	dp_y = ipoint[info.axis2] - (*V[2])[info.axis2];
+	cross = edge_x * dp_y - edge_y * dp_x;
+	side2 = (cross >= 0.0f);
+
+	bool my_intersect = ((side0 == side1) && (side1 == side2));
+	return my_intersect;
+
+#else
+	int vi;
+	int axis1 = 0;
+	int axis2 = 0;
+	int axis3 = 0;
+
+	find_dominant_plane(*this,&axis1,&axis2,&axis3);
+
+	bool side[3];
+
+	/*
+	** Compute the 2D cross product of edge0 with a vector to the point
+	*/
+	Vector2 edge;
+	Vector2 dp;
+
+	for (vi=0; vi<3; vi++) {
+		
+		int va=vi;
+		int vb=(vi+1)%3;
+		
+		edge.Set((*V[vb])[axis1] - (*V[va])[axis1] , (*V[vb])[axis2] - (*V[va])[axis2]);
+		dp.Set(ipoint[axis1] - (*V[va])[axis1] , ipoint[axis2] - (*V[va])[axis2]);
+		float cross = edge.X * dp.Y - edge.Y * dp.X;
+		side[vi] = (cross >= 0.0f);
+	}
+
+	bool my_intersect = ((side[0] == side[1]) && (side[1] == side[2]));
+	return my_intersect;
+#endif
+#endif
+
+
+}

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/tri.h

@@ -0,0 +1,306 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/tri.h                                 $*
+ *                                                                                             *
+ *                       Author:: Greg_h                                                       *
+ *                                                                                             *
+ *                     $Modtime:: 5/04/01 8:35p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 14                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef TRI_H
+#define TRI_H
+
+#include "always.h"
+#include "vector4.h"
+#include "vector3.h"
+#include "vector2.h"
+#include <assert.h>
+
+
+/**
+** TriClass
+** When the math library needs to deal with triangles, this will be the form used.
+** The initial reason for this class is for Commando's collision detection code.  Initially
+** I wrote custom code inside the render object for the terrain to perform collision 
+** detection. Moving the low-level geometrical collision code into the math library makes it 
+** more re-useable and independent from changes in the rendering code.
+*/
+class TriClass
+{
+public:
+
+	const Vector3 *	N;
+	const Vector3 *	V[3];
+
+	void Compute_Normal()
+	{
+		assert(N);
+		assert(V[0]);
+		assert(V[1]);
+		assert(V[2]);
+
+		Vector3::Cross_Product(*(V[1])-*(V[0]),*(V[2])-*(V[0]),(Vector3 *)N);
+		((Vector3 *)N)->Normalize();
+	}
+
+
+	bool Contains_Point(const Vector3 & ipoint) const;
+	void Find_Dominant_Plane(int * axis1,int * axis2) const;
+};
+
+
+/*
+** Utility functions:
+** Functions which have to do with triangles but not neccessarily with TriClass - usually used
+** by TriClass but also available for use elsewhere.
+*/
+
+// Enums for raycast flags (currently used only for semi-infinite axis-aligned rays)
+enum
+{
+	TRI_RAYCAST_FLAG_NONE			= 0x00,
+	TRI_RAYCAST_FLAG_HIT_EDGE		= 0x01,
+	TRI_RAYCAST_FLAG_START_IN_TRI	= 0x02
+};
+
+// This function does a pure 2D point-in-triangle test. We pass in 3D points both for the
+// triangle and test points, but we also pass in the two axes to use (the third axis is ignored,
+// so we are actually testing the projection of the four points onto one of the axis planes). The
+// triangle points are not assumed to be in any particular winding order (that is checked for
+// internally). It is used internally by TriClass::Contains_Point(), and may be used elsewhere.
+// If the ray intersects the camera at an edge we also count it as an intersection. We set a bit
+// in 'flags' to true in this case (some users of this function need this extra information and
+// it is very cheap to compute). We do not modify 'flags' if no edges are hit, so it must be
+// initialized outside this function if its value is to be used.
+inline bool Point_In_Triangle_2D(const Vector3 &tri_point0, const Vector3 &tri_point1,
+	const Vector3 &tri_point2, const Vector3 &test_point, int axis_1, int axis_2,
+	unsigned char &flags)
+{
+	// The function is based on checking signs of determinants, or in a more visually intuitive
+	// sense, checking on which side of a line a point lies. For example, if the points run in
+	// counter-clockwise order, the interior of the triangle is the intersection of the three
+	// half-planes to the left of the directed infinite lines along P0 to P1, P1 to P2, P2 to P0.
+	// Therefore the test point is in the triangle iff it is to the left of all three lines (if
+	// the points are in clockwise order, we check if it is to the right of the lines).
+	Vector2 p0p1(tri_point1[axis_1] - tri_point0[axis_1], tri_point1[axis_2] - tri_point0[axis_2]);
+	Vector2 p1p2(tri_point2[axis_1] - tri_point1[axis_1], tri_point2[axis_2] - tri_point1[axis_2]);
+	Vector2 p2p0(tri_point0[axis_1] - tri_point2[axis_1], tri_point0[axis_2] - tri_point2[axis_2]);
+
+	// Check which side P2 is relative to P0P1. The sign of this test must equal the sign of all
+	// three tests between the lines and the test point for the test point to be inside the
+	// triangle. (this test will also tell us if the three points are colinear - if the triangle
+	// is degenerate).
+	Vector2 p0p2(tri_point2[axis_1] - tri_point0[axis_1], tri_point2[axis_2] - tri_point0[axis_2]);
+	float p0p1p2 = Vector2::Perp_Dot_Product(p0p1, p0p2);
+	if (p0p1p2 != 0.0f) {
+
+		// The triangle is not degenerate - test three sides
+		float side_factor = p0p1p2 > 0.0f ? 1.0f : -1.0f;
+		float factors[3];
+
+		// Now perform tests
+		Vector2 p0pT(test_point[axis_1] - tri_point0[axis_1], test_point[axis_2] - tri_point0[axis_2]);
+		factors[0] = Vector2::Perp_Dot_Product(p0p1, p0pT);
+		if (factors[0] * side_factor < 0.0f) {
+			return false;
+		}
+		Vector2 p1pT(test_point[axis_1] - tri_point1[axis_1], test_point[axis_2] - tri_point1[axis_2]);
+		factors[1] = Vector2::Perp_Dot_Product(p1p2, p1pT);
+		if (factors[1] * side_factor < 0.0f) {
+			return false;
+		}
+		Vector2 p2pT(test_point[axis_1] - tri_point2[axis_1], test_point[axis_2] - tri_point2[axis_2]);
+		factors[2] = Vector2::Perp_Dot_Product(p2p0, p2pT);
+		if (factors[2] * side_factor < 0.0f) {
+			return false;
+		}
+		if ((factors[0] == 0.0f) || (factors[1] == 0.0f) || (factors[2] == 0.0f)) flags |= TRI_RAYCAST_FLAG_HIT_EDGE;
+		return true;
+
+	} else {
+
+		// The triangle is degenerate. This should be a rare case, so it does not matter much if it
+		// is a little slower than the non-colinear case.
+		
+		// Find the two outer points along the triangle's line ('start' and 'end' points)
+		float p0p1dist2 = p0p1.Length2();
+		float p1p2dist2 = p1p2.Length2();
+		float p2p0dist2 = p1p2.Length2();
+		float max_dist2;
+		Vector2 pSpE, pSpT;	// 'end' point, test point - both in 'start' points' frame
+		if (p0p1dist2 > p1p2dist2) {
+			if (p0p1dist2 > p2p0dist2) {
+				// points 0 and 1 are the 'outer' points. 0 is 'start' and 1 is 'end'.
+				pSpE = p0p1;
+				pSpT.Set(test_point[axis_1] - tri_point0[axis_1], test_point[axis_2] - tri_point0[axis_2]);
+				max_dist2 = p0p1dist2;
+			} else {
+				// points 0 and 2 are the 'outer' points. 2 is 'start' and 0 is 'end'.
+				pSpE = p2p0;
+				pSpT.Set(test_point[axis_1] - tri_point2[axis_1], test_point[axis_2] - tri_point2[axis_2]);
+				max_dist2 = p2p0dist2;
+			}
+		} else {
+			if (p1p2dist2 > p2p0dist2) {
+				// points 1 and 2 are the 'outer' points. 1 is 'start' and 2 is 'end'.
+				pSpE = p1p2;
+				pSpT.Set(test_point[axis_1] - tri_point1[axis_1], test_point[axis_2] - tri_point1[axis_2]);
+				max_dist2 = p1p2dist2;
+			} else {
+				// points 0 and 2 are the 'outer' points. 2 is 'start' and 0 is 'end'.
+				pSpE = p2p0;
+				pSpT.Set(test_point[axis_1] - tri_point2[axis_1], test_point[axis_2] - tri_point2[axis_2]);
+				max_dist2 = p2p0dist2;
+			}
+		}
+
+		if (max_dist2 != 0.0f) {
+			// Triangle is line segment, check if test point is colinear with it
+			if (Vector2::Perp_Dot_Product(pSpE, pSpT)) {
+				// Not colinear
+				return false;
+			} else {
+				// Colinear - is test point's distance from start and end <= segment length?
+				Vector2 pEpT = pSpT - pSpE;
+				if (pSpT.Length2() <= max_dist2 && pEpT.Length2() <= max_dist2) {
+					flags |= TRI_RAYCAST_FLAG_HIT_EDGE;
+					return true;
+				} else {
+					return false;
+				}
+			}
+		} else {
+			// All triangle points coincide, check if test point coincides with them
+			if (pSpT.Length2() == 0.0f) {
+				flags |= TRI_RAYCAST_FLAG_HIT_EDGE;
+				return true;
+			} else {
+				return false;
+			}
+		}
+	}
+}
+
+
+// This function tests a semi-infinite axis-aligned ray vs. a triangle.
+// The inputs are blah blah blah
+inline bool Cast_Semi_Infinite_Axis_Aligned_Ray_To_Triangle(const Vector3 &tri_point0,
+	const Vector3 &tri_point1, const Vector3 &tri_point2, const Vector4 &tri_plane,
+	const Vector3 &ray_start, int axis_r, int axis_1, int axis_2, int direction,
+	unsigned char & flags)
+{
+	bool retval = false;
+
+	// First check infinite ray vs. triangle (2D check)
+	unsigned char flags_2d = TRI_RAYCAST_FLAG_NONE;
+	if (Point_In_Triangle_2D(tri_point0, tri_point1, tri_point2, ray_start, axis_1, axis_2, flags_2d)) {
+
+		// NOTE: SR plane equations, unlike WWMath's PlaneClass, use the Ax+By+Cz+D = 0
+		// representation. It can also be viewed as C0x+C1y+C2z+C3 = dist where dist is the
+		// signed distance from the plane (and therefore the plane is defined as those points
+		// where dist = 0). Now that we know that the projection along the ray is inside the
+		// triangle, determining whether the ray hits the triangle is a matter of determining
+		// whether the start point is on the triangle plane's "anti-rayward side" (the side
+		// which the ray points away from).
+		// To determine this, we will use C[axis_r] (the plane coefficient of the ray axis).
+		// This coefficient is positive if the positive direction of the ray axis points into
+		// the planes' positive halfspace and negative if it points into the planes' negative
+		// halfspace (it is zero if the ray axis is parallel to the triangle plane). If we
+		// multiply this by 'sign' which is defined to be -1.0 if 'direction' equals 0 and
+		// 1.0 if 'direction' equals 1, we will get a number which is positive or negative
+		// depending on which halfspace the ray itself (as opposed to the rays axis) points
+		// towards. If we further multiply this by dist(start point) - the result of plugging
+		// the start point into the plane equation - we will get a number which is positive
+		// if the start point is on the 'rayward side' (ray does not intersect the triangle)
+		// and is negative if the start point is on the 'anti-rayward side' (ray does
+		// intersect triangle). In either of these two cases we are done.
+		// (see below for what happens when the result is zero - more checks need to be made).
+		static const float sign[2] = {-1.0f, 1.0f };
+		float result = tri_plane[axis_r] * sign[direction] * (tri_plane.X * ray_start.X +
+			tri_plane.Y * ray_start.Y + tri_plane.Z * ray_start.Z + tri_plane.W);
+		if (result < 0.0f) {
+			// Intersection!
+			flags |= (flags_2d & TRI_RAYCAST_FLAG_HIT_EDGE);
+			retval = true;
+		} else {
+			if (result == 0.0f) {
+				// If the result is 0, this means either the ray is parallel to the triangle
+				// plane or the start point is embedded in the triangle plane. Note that since
+				// the start point passed the 2D check, then if the ray is parallel the start
+				// point must also be embedded in the triangle plane. This leaves us with two
+				// cases:
+				// A) The ray is not parallel to the plane - in this case the start point is
+				// embedded in the triangle. We report an intersection, bitwise OR the edge
+				// result from the 2D check into the 'edge hit' flag and set the 'start in tri'
+				// flag.
+				// B) The ray is parallel to the plane. In this case the result of the 2D test
+				// tells us that the infinite line intersects the triangle (actually is
+				// embedded in the triangle along part of its length), but we do not know
+				// whether the semi-infinite ray also does so. We simplify things by not
+				// counting such an 'intersection'. There are four reasons behind this:
+				// 1. It differs from a 'normal' intersection (which has one intersecting
+				// point) - there are infinitely many intersecting points.
+				// 2. Moving the plane by an infinitesimally small amount to either side will
+				// cause the ray to no longer touch the plane.
+				// 3. This will not affect results for the known uses of this function.
+				// 4. By doing so we avoid having to code up a bunch of complex tests.
+				// Therefore in case B) we just report no intersection. We still need to find
+				// out whether the point is embedded in the triangle (for setting the flag) so
+				// we do another simple 2D test on the dominant plane.
+				if (tri_plane[axis_r]) {
+					// Case A)
+					flags |= (flags_2d & TRI_RAYCAST_FLAG_HIT_EDGE);
+					flags |= TRI_RAYCAST_FLAG_START_IN_TRI;
+					retval = true;
+				} else {
+					// Case B) - test if point in tri (we know it is in plane, so we can use
+					// TriClass function)
+					TriClass tri;
+					tri.V[0] = &tri_point0;
+					tri.V[1] = &tri_point1;
+					tri.V[2] = &tri_point2;
+					tri.N = (Vector3*)&tri_plane;
+					if (tri.Contains_Point(ray_start)) {
+						flags |= TRI_RAYCAST_FLAG_START_IN_TRI;
+					}
+				}
+			}	// if (result == 0.0f)
+		}	// else (result < 0.0f)
+	}	// if Point_In_Triangle_2D()
+
+	return retval;
+}
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/v3_rnd.cpp

@@ -0,0 +1,173 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : G                                                            *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/v3_rnd.cpp                            $*
+ *                                                                                             *
+ *                      $Author:: Greg_h                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 7/09/99 9:49a                                               $*
+ *                                                                                             *
+ *                    $Revision:: 4                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "v3_rnd.h"
+#include "vector2.h"
+
+const float Vector3Randomizer::OOIntMax = 1.0f / (float)INT_MAX;
+const float Vector3Randomizer::OOUIntMax = 1.0f / (float)UINT_MAX;
+Random3Class Vector3Randomizer::Randomizer;
+
+Vector3SolidBoxRandomizer::Vector3SolidBoxRandomizer(const Vector3 & extents)
+{
+	Extents.X = MAX(extents.X, 0.0f);
+	Extents.Y = MAX(extents.Y, 0.0f);
+	Extents.Z = MAX(extents.Z, 0.0f);
+}
+
+void Vector3SolidBoxRandomizer::Get_Vector(Vector3 &vector)
+{
+	vector.X = Get_Random_Float_Minus1_To_1() * Extents.X;
+	vector.Y = Get_Random_Float_Minus1_To_1() * Extents.Y;
+	vector.Z = Get_Random_Float_Minus1_To_1() * Extents.Z;
+}
+
+float Vector3SolidBoxRandomizer::Get_Maximum_Extent(void)
+{
+	float max = MAX(Extents.X, Extents.Y);
+	max = MAX(max, Extents.Z);
+	return max;
+}
+
+void Vector3SolidBoxRandomizer::Scale(float scale)
+{
+	scale = MAX(scale, 0.0f);
+	Extents.X *= scale;
+	Extents.Y *= scale;
+	Extents.Z *= scale;
+}
+
+
+Vector3SolidSphereRandomizer::Vector3SolidSphereRandomizer(float radius)
+{
+	Radius = MAX(radius, 0.0f);
+}
+
+void Vector3SolidSphereRandomizer::Get_Vector(Vector3 &vector)
+{
+	// Generate vectors in a cube and discard the ones not in a sphere
+	float rad_squared = Radius * Radius;
+	for (;;) {
+		vector.X = Get_Random_Float_Minus1_To_1() * Radius;
+		vector.Y = Get_Random_Float_Minus1_To_1() * Radius;
+		vector.Z = Get_Random_Float_Minus1_To_1() * Radius;
+		if (vector.Length2() <= rad_squared) break;
+	}
+}
+
+float Vector3SolidSphereRandomizer::Get_Maximum_Extent(void)
+{
+	return Radius;
+}
+
+void Vector3SolidSphereRandomizer::Scale(float scale)
+{
+	scale = MAX(scale, 0.0f);
+	Radius *= scale;
+}
+
+
+Vector3HollowSphereRandomizer::Vector3HollowSphereRandomizer(float radius)
+{
+	Radius = MAX(radius, 0.0f);
+}
+
+void Vector3HollowSphereRandomizer::Get_Vector(Vector3 &vector)
+{
+	// Generate vectors in a 2x2x2 origin-centered cube, discard the ones not in a unit-radius
+	// sphere and scale the result to Radius.
+	float v_l2;
+	for (;;) {
+		vector.X = Get_Random_Float_Minus1_To_1();
+		vector.Y = Get_Random_Float_Minus1_To_1();
+		vector.Z = Get_Random_Float_Minus1_To_1();
+		v_l2 = vector.Length2();
+		if (v_l2 <= 1.0f && v_l2 > 0.0f) break;
+	}
+
+	float scale = Radius * WWMath::Inv_Sqrt(v_l2);
+
+	vector.X *= scale;
+	vector.Y *= scale;
+	vector.Z *= scale;
+}
+
+float Vector3HollowSphereRandomizer::Get_Maximum_Extent(void)
+{
+	return Radius;
+}
+
+void Vector3HollowSphereRandomizer::Scale(float scale)
+{
+	scale = MAX(scale, 0.0f);
+	Radius *= scale;
+}
+
+
+Vector3SolidCylinderRandomizer::Vector3SolidCylinderRandomizer(float extent, float radius)
+{
+	Extent = MAX(extent, 0.0f);
+	Radius = MAX(radius, 0.0f);
+}
+
+void Vector3SolidCylinderRandomizer::Get_Vector(Vector3 &vector)
+{
+	vector.X = Get_Random_Float_Minus1_To_1() * Extent;
+
+	// Generate 2D vectors in a square and discard the ones not in a circle
+	Vector2 vec2;
+	float rad_squared = Radius * Radius;
+	for (;;) {
+		vec2.X = Get_Random_Float_Minus1_To_1() * Radius;
+		vec2.Y = Get_Random_Float_Minus1_To_1() * Radius;
+		if (vec2.Length2() <= rad_squared) break;
+	}
+
+	vector.Y = vec2.X;
+	vector.Z = vec2.Y;
+}
+
+float Vector3SolidCylinderRandomizer::Get_Maximum_Extent(void)
+{
+	return MAX(Extent, Radius);
+}
+
+void Vector3SolidCylinderRandomizer::Scale(float scale)
+{
+	scale = MAX(scale, 0.0f);
+	Extent *= scale;
+	Radius *= scale;
+}

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/v3_rnd.h

@@ -0,0 +1,235 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : G                                                            *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/v3_rnd.h                              $*
+ *                                                                                             *
+ *                      $Author:: Greg_h                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 7/09/99 9:49a                                               $*
+ *                                                                                             *
+ *                    $Revision:: 4                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef V3_RND_H
+#define V3_RND_H
+
+#include "always.h"
+#include "vector3.h"
+#include "random.h"
+#include <limits.h>
+
+/*
+** Vector3Randomizer is an abstract class for generating random Vector3s.
+** Examples: generating vectors in a sphere, cylinder, etc.
+** This file contains several concrete derived classes; others may be defined
+** in future.
+** A possible future extension to this class would be to add a method to
+** efficiently get an array of random points.
+*/
+
+class Vector3Randomizer {
+
+	public:
+
+		enum 
+		{
+			CLASSID_UNKNOWN		= 0xFFFFFFFF,
+			CLASSID_SOLIDBOX		= 0,
+			CLASSID_SOLIDSPHERE,
+			CLASSID_HOLLOWSPHERE,
+			CLASSID_SOLIDCYLINDER,
+			CLASSID_MAXKNOWN,
+			CLASSID_LAST			= 0x0000FFFF
+		};
+
+		virtual ~Vector3Randomizer(void)																		{ }
+
+		// RTTI identifiction
+		virtual unsigned int				Class_ID (void) const											= 0;
+
+		// Return a random vector
+		virtual void						Get_Vector(Vector3 &vector) 									= 0;
+
+		// Get the maximum component possible for generated vectors
+		virtual float						Get_Maximum_Extent(void)										= 0;
+
+		// Scale all vectors produced in future
+		virtual void						Scale(float scale)												= 0;
+
+		// Clone the randomizer
+		virtual Vector3Randomizer *	Clone(void) const													= 0;
+
+	protected:
+
+		// Derived classes should have protected copy CTors so users use the Clone() function
+
+		// Utility functions
+		float Get_Random_Float_Minus1_To_1()	{ return Randomizer * OOIntMax; }
+		float Get_Random_Float_0_To_1()			{ return ((unsigned int)Randomizer) * OOUIntMax; }
+
+		static const float OOIntMax;
+		static const float OOUIntMax;
+		static Random3Class	Randomizer;
+
+	private:
+
+		// Derived classes should have a private dummy assignment operator to block usage
+};
+
+
+/*
+** Vector3SolidBoxRandomizer is a randomizer for generating points uniformly distributed inside a
+** box which is centered on the origin.
+*/
+class Vector3SolidBoxRandomizer : public Vector3Randomizer {
+
+	public:
+
+		Vector3SolidBoxRandomizer(const Vector3 & extents);
+
+		virtual unsigned int				Class_ID (void) const { return CLASSID_SOLIDBOX; }
+		virtual const Vector3 &			Get_Extents (void) const { return Extents; }
+		virtual void						Get_Vector(Vector3 &vector);
+		virtual float						Get_Maximum_Extent(void);
+		virtual void						Scale(float scale);
+		virtual Vector3Randomizer *	Clone(void) const	{ return W3DNEW Vector3SolidBoxRandomizer(*this); }
+
+	protected:
+
+		// Derived classes should have protected copy CTors so users use the Clone() function
+		Vector3SolidBoxRandomizer(const Vector3SolidBoxRandomizer &src) : Extents(src.Extents) { }
+
+	private:
+
+		// Derived classes should have a private dummy assignment operator to block usage
+		Vector3SolidBoxRandomizer & Vector3SolidBoxRandomizer::operator = (const Vector3SolidBoxRandomizer &that) { that; return *this; }
+
+		Vector3	Extents;
+};
+
+
+/*
+** Vector3SolidSphereRandomizer is a randomizer for generating points uniformly distributed inside
+** a sphere which is centered on the origin.
+*/
+class Vector3SolidSphereRandomizer : public Vector3Randomizer {
+
+	public:
+
+		Vector3SolidSphereRandomizer(float radius);
+
+		virtual unsigned int				Class_ID (void) const { return CLASSID_SOLIDSPHERE; }
+		virtual float						Get_Radius (void) const { return Radius; }
+		virtual void						Get_Vector(Vector3 &vector);
+		virtual float						Get_Maximum_Extent(void);
+		virtual void						Scale(float scale);
+		virtual Vector3Randomizer *	Clone(void) const	{ return W3DNEW Vector3SolidSphereRandomizer(*this); }
+
+	protected:
+
+		// Derived classes should have protected copy CTors so users use the Clone() function
+		Vector3SolidSphereRandomizer(const Vector3SolidSphereRandomizer &src) : Radius(src.Radius) { }
+
+	private:
+
+		// Derived classes should have a private dummy assignment operator to block usage
+		Vector3SolidSphereRandomizer & Vector3SolidSphereRandomizer::operator = (const Vector3SolidSphereRandomizer &that) { that; return *this; }
+
+		float	Radius;
+};
+
+
+/*
+** Vector3HollowSphereRandomizer is a randomizer for generating points uniformly distributed on the
+** surface of a sphere which is centered on the origin.
+*/
+class Vector3HollowSphereRandomizer : public Vector3Randomizer {
+
+	public:
+
+		Vector3HollowSphereRandomizer(float radius);
+
+		virtual unsigned int				Class_ID (void) const { return CLASSID_HOLLOWSPHERE; }
+		virtual float						Get_Radius (void) const { return Radius; }
+		virtual void						Get_Vector(Vector3 &vector);
+		virtual float						Get_Maximum_Extent(void);
+		virtual void						Scale(float scale);
+		virtual Vector3Randomizer *	Clone(void) const	{ return W3DNEW Vector3HollowSphereRandomizer(*this); }
+
+	protected:
+
+		// Derived classes should have protected copy CTors so users use the Clone() function
+		Vector3HollowSphereRandomizer(const Vector3HollowSphereRandomizer &src) : Radius(src.Radius) { }
+
+	private:
+
+		// Derived classes should have a private dummy assignment operator to block usage
+		Vector3HollowSphereRandomizer & Vector3HollowSphereRandomizer::operator = (const Vector3HollowSphereRandomizer &that) { that; return *this; }
+
+		float	Radius;
+};
+
+
+/*
+** Vector3SolidCylinderRandomizer is a randomizer for generating points uniformly distributed
+** inside a cylinder which is centered on the origin (set extent to 0 for a disk).
+*/
+class Vector3SolidCylinderRandomizer : public Vector3Randomizer {
+
+	public:
+
+		Vector3SolidCylinderRandomizer(float extent, float radius);
+
+		virtual unsigned int				Class_ID (void) const { return CLASSID_SOLIDCYLINDER; }
+		virtual float						Get_Radius (void) const { return Radius; }
+		virtual float						Get_Height (void) const { return Extent; }
+		virtual void						Get_Vector(Vector3 &vector);
+		virtual float						Get_Maximum_Extent(void);
+		virtual void						Scale(float scale);
+		virtual Vector3Randomizer *	Clone(void) const	{ return W3DNEW Vector3SolidCylinderRandomizer(*this); }
+
+	protected:
+
+		// Derived classes should have protected copy CTors so users use the Clone() function
+		Vector3SolidCylinderRandomizer(const Vector3SolidCylinderRandomizer &src) : Extent(src.Extent), Radius(src.Radius) { }
+
+	private:
+
+		// Derived classes should have a private dummy assignment operator to block usage
+		Vector3SolidCylinderRandomizer & Vector3SolidCylinderRandomizer::operator = (const Vector3SolidCylinderRandomizer &that) { that; return *this; }
+
+		float	Extent;
+		float	Radius;
+};
+
+
+#endif
+
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/vector2.h

@@ -0,0 +1,671 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /Commando/Code/wwmath/vector2.h 24    7/06/01 9:43a Byon_g $ */
+/*********************************************************************************************** 
+ ***                  Confidential - Westwood Studios                                        *** 
+ *********************************************************************************************** 
+ *                                                                                             * 
+ *                 Project Name : Westwood 3D                                                  * 
+ *                                                                                             * 
+ *                    File Name : VECTOR2.H                                                    * 
+ *                                                                                             * 
+ *                   Programmer : Greg Hjelstrom                                               * 
+ *                                                                                             * 
+ *                   Start Date : 02/24/97                                                     *  
+ *                                                                                             * 
+ *                  Last Update : February 24, 1997 [GH]                                       * 
+ *                                                                                             * 
+ *---------------------------------------------------------------------------------------------* 
+ * Functions:                                                                                  * 
+ *   Scalar Division Operator -- Divide a vector by a scalar                                   * 
+ *   Scalar Multiply Operator -- Multiply a vector by a scalar                                 * 
+ *   Vector Addition Operator -- Add two vectors                                               * 
+ *   Vector Subtraction Operator -- Subract two vectors                                        * 
+ *   Vector Inner Product Operator -- Compute the inner or dot product                         * 
+ *   Vector Equality Operator -- Detemine if two vectors are identical                         * 
+ *   Equal_Within_Epsilon -- Determine if two vectors are identical within                     * 
+ *   Vector Inequality Operator -- Detemine if two vectors are identical                       * 
+ *   Swap -- swap two Vector2's                                                                * 
+ *   Vector2::Is_Valid -- Verifies that all components are valid floats                        *
+ *	  Vector2::Update_Min -- sets each component of the vector to the min of this and a.        *
+ *	  Vector2::Update_Max -- sets each component of the vector to the max of this and a.        *
+ *   Vector2::Scale -- multiply components of a vector by independant scaling factors.			  *
+ *   Vector2::Lerp -- linearly interpolates two Vector2's                                      *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef VECTOR2_H
+#define VECTOR2_H
+
+#include "always.h"
+#include "wwmath.h"
+#include <math.h>
+
+
+/*
+** 2-Dimensional Vectors
+*/
+
+class Vector2
+{
+
+public:
+
+	union {
+		float	X;
+		float U;
+	};
+
+	union {
+		float	Y;
+		float V;
+	};
+
+	// Constructors
+	WWINLINE Vector2(void) {};
+	WWINLINE Vector2(const Vector2 & v) { X = v.X; Y = v.Y; }
+	WWINLINE Vector2(float x, float y) { X = x; Y = y; }
+	WWINLINE Vector2(const float vector[2]) { X = vector[0]; Y = vector[1]; }
+	
+	
+	// Assignment
+	WWINLINE Vector2 & operator = (const Vector2 & v) { X = v[0]; Y = v[1]; return *this; }	
+	WWINLINE void	Set(float x, float y) { X = x; Y = y; }
+	WWINLINE void	Set(const Vector2 & v) { X = v.X; Y = v.Y; }
+
+	// Array access
+	WWINLINE float &	operator [](int i) { return (&X)[i]; }     
+	WWINLINE const float &  operator [](int i) const { return (&X)[i]; }  
+
+	// normalize, compute length
+	WWINLINE void	Normalize(void);
+	WWINLINE float Length(void) const;
+	WWINLINE float Length2(void) const;
+
+	// unary operators
+	WWINLINE Vector2 operator-() const { return Vector2(-X,-Y); } 
+	WWINLINE Vector2 operator+() const { return *this; } 
+
+	WWINLINE Vector2 & operator += (const Vector2 & v) { X += v.X; Y += v.Y; return *this; }	
+	WWINLINE Vector2 & operator -= (const Vector2 & v) { X -= v.X; Y -= v.Y; return *this; }		
+	WWINLINE Vector2 & operator *= (float k) { X = (float)(X*k); Y=(float)(Y*k); return *this; }
+	WWINLINE Vector2 & operator /= (float k) { k=1.0f/k; X*=k; Y*=k; return *this; }
+
+	// scalar multiplication, division
+	WWINLINE friend Vector2 operator * (const Vector2 &a,float k);
+	WWINLINE friend Vector2 operator * (float k,const Vector2 &a);
+ 	WWINLINE friend Vector2 operator / (const Vector2 &a,float k);
+
+	// vector addition,subtraction
+	WWINLINE friend Vector2 operator + (const Vector2 &a,const Vector2 &b);
+	WWINLINE friend Vector2 operator - (const Vector2 &a,const Vector2 &b);
+
+	// dot product / inner product
+	WWINLINE friend float operator * (const Vector2 &a,const Vector2 &b);
+	static WWINLINE float Dot_Product(const Vector2 &a,const Vector2 &b);
+
+	// dot product between a and perpendicular vector to b
+	static float Perp_Dot_Product(const Vector2 &a,const Vector2 &b);
+	
+	// Equality operators
+	friend bool operator == (const Vector2 &a,const Vector2 &b);
+	friend bool operator != (const Vector2 &a,const Vector2 &b);
+   WWINLINE friend bool Equal_Within_Epsilon(const Vector2 &a,const Vector2 &b,float epsilon);
+
+	// Rotation
+	WWINLINE void Rotate(float theta);
+	WWINLINE void Rotate(float s, float c);
+	WWINLINE bool Rotate_Towards_Vector(Vector2 &target, float max_theta, bool & positive_turn);
+	WWINLINE bool Rotate_Towards_Vector(Vector2 &target, float max_s, float max_c, bool & positive_turn);
+
+	// verify that none of the members of this vector are invalid floats
+	WWINLINE bool Is_Valid(void) const;
+
+	// make this vector the min or max of itself and the passed vector
+	WWINLINE void Update_Min (const Vector2 & a);
+	WWINLINE void Update_Max (const Vector2 & a);
+	WWINLINE void Scale (float a, float b);
+	WWINLINE void Scale (const Vector2 & a);
+
+	static WWINLINE float Distance(const Vector2 &p1, const Vector2 &p2);
+	static WWINLINE float Quick_Distance(const Vector2 &p1, const Vector2 &p2);
+
+	// interpolate between two Vector2's
+	static void Lerp(const Vector2 & a,const Vector2 & b,float t,Vector2 * set_result);
+};
+
+
+/************************************************************************** 
+ * Scalar Multiply Operator -- Multiply a vector by a scalar              * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *   02/24/1997 GH  : Created.                                            * 
+ *========================================================================*/
+WWINLINE Vector2 operator * (const Vector2 &a,float k)
+{
+	float a0k(a[0] * k);
+	float a1k(a[1] * k);
+	return Vector2(a0k,a1k);
+}
+
+WWINLINE Vector2 operator * (float k, const Vector2 &a)
+{
+	float a0k(a[0] * k);
+	float a1k(a[1] * k);
+	return Vector2(a0k,a1k);
+}
+
+/************************************************************************** 
+ * Scalar Division Operator -- Divide a vector by a scalar                * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE Vector2 operator / (const Vector2 &a,float k)
+{
+	float ook=1.0f/k;
+	float a0ook(a[0] * ook);
+	float a1ook(a[1] * ook);
+	return Vector2(a0ook,a1ook);
+}
+
+/************************************************************************** 
+ * Vector Addition Operator -- Add two vectors                            * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *   02/24/1997 GH  : Created.                                            * 
+ *========================================================================*/
+WWINLINE Vector2 operator + (const Vector2 &a,const Vector2 &b)
+{
+	return Vector2(
+							a.X + b.X,
+							a.Y + b.Y
+						);
+}
+
+/************************************************************************** 
+ * Vector Subtraction Operator -- Subract two vectors                     * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *   02/24/1997 GH  : Created.                                            * 
+ *========================================================================*/
+WWINLINE Vector2 operator - (const Vector2 &a,const Vector2 &b)
+{
+	return Vector2(
+							a.X - b.X,
+							a.Y - b.Y
+						);
+}
+
+/************************************************************************** 
+ * Vector Inner Product -- Compute the inner or dot product of two vector * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE float operator * (const Vector2 &a,const Vector2 &b)
+{
+	return	a.X*b.X + a.Y*b.Y;
+}
+
+WWINLINE float Vector2::Dot_Product(const Vector2 &a,const Vector2 &b)
+{
+	return a*b;
+}
+
+WWINLINE float Vector2::Perp_Dot_Product(const Vector2 &a,const Vector2 &b)
+{
+	return a.X * -b.Y + a.Y * b.X;
+}
+
+/************************************************************************** 
+ * Vector Equality Operator -- Detemine if two vectors are identical      * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE bool operator == (const Vector2 &a,const Vector2 &b)
+{
+	bool a0b0(a[0] == b[0]);
+	bool a1b1(a[1] == b[1]);
+	return ( a0b0 & a1b1);
+}
+
+/************************************************************************** 
+ * Vector Inequality Operator -- Detemine if two vectors are identical    * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE bool operator != (const Vector2 &a,const Vector2 &b)
+{
+	bool a0b0(a[0] != b[0]);
+	bool a1b1(a[1] != b[1]);
+	return ( a0b0 | a1b1);
+}
+
+/************************************************************************** 
+ * Equal_Within_Epsilon -- Determine if two vectors are identical within e* 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE bool Equal_Within_Epsilon(const Vector2 &a,const Vector2 &b,float epsilon)
+{
+   return( (WWMath::Fabs(a.X - b.X) < epsilon) && (WWMath::Fabs(a.Y - b.Y) < epsilon) );
+}
+
+/************************************************************************** 
+ * Vector2::Normalize -- Normalizes the vector.                           * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE void Vector2::Normalize()
+{
+	float len2 = Length2();
+	if (len2 != 0.0f) {
+		float oolen = WWMath::Inv_Sqrt(len2);
+		X *= oolen;
+		Y *= oolen;
+	}
+}
+
+WWINLINE Vector2 Normalize(const Vector2 & vec)
+{
+	float len2 = vec.Length2();
+	if (len2 != 0.0f) {
+		float oolen = WWMath::Inv_Sqrt(len2);
+		return vec / oolen;
+	}
+	return Vector2(0.0f,0.0f);
+}
+
+/************************************************************************** 
+ * Vector2::Length -- Returns the length of the vector                    * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE float Vector2::Length() const
+{
+	return (float)WWMath::Sqrt(Length2());
+}
+
+/************************************************************************** 
+ * Vector2::Length -- Returns the square of the length of the vector      * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE float Vector2::Length2() const
+{
+	return (X*X + Y*Y);
+}
+
+/************************************************************************** 
+ * Vector2::Rotate -- Rotate vector                                       * 
+ *                                                                        * 
+ * INPUT:                                                                 *
+ * float theta - angle to rotate                                          * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE void Vector2::Rotate(float theta)
+{
+	Rotate(WWMath::Sin(theta), WWMath::Cos(theta));
+}
+
+/************************************************************************** 
+ * Vector2::Rotate -- Rotate vector                                       * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ * s - sine of the angle                                                  * 
+ * c - cosine of the angle                                                * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE void Vector2::Rotate(float s, float c)
+{
+	float new_x = X * c + Y * -s;
+	float new_y = X * s + Y * c;
+	X = new_x;
+	Y = new_y;
+}
+
+/************************************************************************** 
+ * Vector2::Rotate -- Rotate towards given vector (stop on reaching it)   * 
+ *                                                                        * 
+ * INPUT:                                                                 *
+ * float theta - angle to rotate                                          * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ * bool - true if we have reached the desired vector                      * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ * This function assumes both vectors are normalized!                     * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE bool Vector2::Rotate_Towards_Vector(Vector2 &target, float max_theta, bool & positive_turn)
+{
+	return Rotate_Towards_Vector(target, WWMath::Sin(max_theta), WWMath::Cos(max_theta), positive_turn);
+}
+
+/************************************************************************** 
+ * Vector2::Rotate -- Rotate towards given vector (stop on reaching it)   * 
+ *                                                                        * 
+ * INPUT:                                                                 *
+ * s - sine of the angle                                                  * 
+ * c - cosine of the angle                                                * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ * bool - true if we have reached the desired vector                      * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ * This function assumes both vectors are normalized!                     * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE bool Vector2::Rotate_Towards_Vector(Vector2 &target, float max_s, float max_c, bool & positive_turn)
+{
+	bool return_value = false;
+	
+	positive_turn = Vector2::Perp_Dot_Product(target, *this) > 0.0f;
+
+	if (Vector2::Dot_Product(*this, target) >= max_c) {
+		Set(target);
+		return_value = true;
+	} else {
+		// Determine turn direction and rotate accordingly.
+		if (positive_turn) {
+			Rotate(max_s, max_c);
+		} else {
+			Rotate(-max_s, max_c);
+		}
+	}
+
+	return return_value;
+}
+
+/*********************************************************************************************** 
+ * Swap -- swap two Vector2's                                                                  * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   08/11/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE void Swap(Vector2 & a,Vector2 & b)
+{
+	Vector2 tmp(a);
+	a = b;
+	b = tmp;
+}
+
+
+/***********************************************************************************************
+ * Vector2::Is_Valid -- Verifies that all components are valid floats                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE bool Vector2::Is_Valid(void) const
+{
+	return (WWMath::Is_Valid_Float(X) && WWMath::Is_Valid_Float(Y));
+}
+
+
+/***********************************************************************************************
+ * Vector2::Update_Min -- Set each component of the vector to the min of this and a.			  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   06/12/00   IML : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector2::Update_Min (const Vector2 & a)
+{	
+	if (a.X < X) X = a.X;
+	if (a.Y < Y) Y = a.Y;
+}
+
+
+/***********************************************************************************************
+ * Vector2::Update_Max -- Set each component of the vector to the max of this and a.			  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   06/12/00   IML : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector2::Update_Max (const Vector2 & a)
+{	
+	if (a.X > X) X = a.X;
+	if (a.Y > Y) Y = a.Y;
+}
+
+
+/***********************************************************************************************
+ * Vector2::Scale -- multiply components of a vector by independant scaling factors.			  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   06/19/2000  IML : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector2::Scale (float a, float b)
+{
+	X *= a;
+	Y *= b;
+}
+
+
+/***********************************************************************************************
+ * Vector2::Scale -- multiply components of a vector by independant scaling factors.			  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   06/19/2000  IML : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector2::Scale (const Vector2 & a)
+{
+	X *= a.X;
+	Y *= a.Y;
+}
+
+
+/***********************************************************************************************
+ * Quick_Distance -- Fast but inaccurate 2D distance calculation.                              *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/29/1999MLL: Created.                                                                   *
+ *=============================================================================================*/
+WWINLINE float Quick_Distance(float x1, float y1, float x2, float y2)
+{
+	// From Graphic Gems I.
+	float x_diff = x1 - x2;
+	float y_diff = y1 - y2;
+
+	WWMath::Fabs(x_diff);
+	WWMath::Fabs(y_diff);
+
+	if (x_diff > y_diff)
+	{
+		return ((y_diff / 2) + x_diff);
+	} 
+	else
+	{
+		return ((x_diff / 2) + y_diff);
+	}
+}
+
+WWINLINE float Vector2::Quick_Distance(const Vector2 &a, const Vector2 &b)
+{
+	return ::Quick_Distance(a.X, a.Y, b.X, b.Y);	
+}
+
+
+/***********************************************************************************************
+ * Distance -- Accurate distance 2D calculation.                                               *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/29/1999MLL: Created.                                                                   *
+ *=============================================================================================*/
+WWINLINE float Vector2::Distance(const Vector2 &a, const Vector2 &b)
+{
+	Vector2 temp;
+	temp = a - b;
+
+	return (temp.Length());
+}
+
+WWINLINE float Distance(float x1, float y1, float x2, float y2)
+{
+	float x_diff = x1 - x2;
+	float y_diff = y1 - y2;
+	
+	return (WWMath::Sqrt((x_diff * x_diff) + (y_diff * y_diff)));
+}
+
+
+/***********************************************************************************************
+ * Vector2::Lerp -- linearly interpolates two Vector2's                                        *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   4/14/2000  gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector2::Lerp(const Vector2 & a,const Vector2 & b,float t,Vector2 * set_result)
+{
+	assert(set_result != NULL);
+	set_result->X = (a.X + (b.X - a.X)*t);
+   set_result->Y = (a.Y + (b.Y - a.Y)*t);
+}
+
+
+#endif /* VECTOR2_H */
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/vector2i.h

@@ -0,0 +1,113 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/vector2i.h                            $*
+ *                                                                                             *
+ *                       Author:: Eric Cosky                                                   *
+ *                                                                                             *
+ *                     $Modtime:: 5/10/01 11:37p                                              $*
+ *                                                                                             *
+ *                    $Revision:: 4                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef VECTOR2I_H
+#define VECTOR2I_H
+
+#include "always.h"
+
+class Vector2i
+{
+public:
+
+	int		I;
+	int		J;
+
+	WWINLINE Vector2i(void);
+	WWINLINE Vector2i(int i,int j);
+	
+	WWINLINE void Set(int i, int j);
+
+	WWINLINE void Swap(Vector2i & other);
+
+	WWINLINE bool			operator== (const Vector2i & v) const;
+	WWINLINE bool			operator!= (const Vector2i& v) const;
+	WWINLINE const	int&	operator[] (int n) const;
+	WWINLINE int&			operator[] (int n);
+};
+
+
+WWINLINE Vector2i::Vector2i(void)
+{
+}
+
+WWINLINE Vector2i::Vector2i(int i,int j) 
+{ 
+	I = i; J = j; 
+}
+
+WWINLINE bool Vector2i::operator == (const Vector2i & v) const
+{ 
+	return (I == v.I && J == v.J );	
+}
+
+WWINLINE bool Vector2i::operator !=	(const Vector2i& v) const
+{ 
+	return !(I == v.I && J == v.J);	
+}
+
+WWINLINE const int& Vector2i::operator[] (int n) const				
+{ 
+	return ((int*)this)[n]; 
+}
+
+WWINLINE int& Vector2i::operator[] (int n)
+{ 
+	return ((int*)this)[n]; 
+}
+
+WWINLINE void Vector2i::Set(int i, int j) { I = i; J = j; }
+
+WWINLINE void Vector2i::Swap(Vector2i & other)
+{
+	// this could use MMX..
+
+	I ^= other.I;
+	other.I ^= I;
+	I ^= other.I;
+
+	J ^= other.J;
+	other.J ^= J;
+	J ^= other.J;
+}
+
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/vector3.h

@@ -0,0 +1,916 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /Commando/Code/wwmath/vector3.h 40    5/11/01 7:11p Jani_p $ */
+/*********************************************************************************************** 
+ ***                  Confidential - Westwood Studios                                        *** 
+ *********************************************************************************************** 
+ *                                                                                             * 
+ *                 Project Name : Westwood 3D                                                  * 
+ *                                                                                             * 
+ *                    File Name : VECTOR3.H                                                    *  
+ *                                                                                             * 
+ *                   Programmer : Greg Hjelstrom                                               * 
+ *                                                                                             *  
+ *                   Start Date : 02/24/97                                                     * 
+ *                                                                                             * 
+ *                  Last Update : February 24, 1997 [GH]                                       * 
+ *                                                                                             * 
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ *   Scalar Division Operator -- Divide a vector by a scalar                                   *
+ *   Scalar Multiply Operator -- Multiply a vector by a scalar                                 *
+ *   Vector Addition Operator -- Add two vectors                                               *
+ *   Vector Subtraction Operator -- Subract two vectors                                        *
+ *   Vector Inner Product Operator -- Compute the inner or dot product                         *
+ *   Vector Equality Operator -- Determine if two vectors are identical                        *
+ *   Vector Inequality Operator -- Determine if two vectors are identical                      *
+ *   Equal_Within_Epsilon -- Determine if two vectors are identical within                     *
+ *   Cross_Product -- compute the cross product of two vectors                                 *
+ *   Vector3::Normalize -- Normalizes the vector.                                              *
+ *   Vector3::Length -- Returns the length of the vector                                       *
+ *   Vector3::Length2 -- Returns the square of the length of the vector                        *
+ *   Vector3::Quick_Length -- returns a quick approximation of the length                      *
+ *   Swap -- swap two Vector3's                                                                *
+ *   Lerp -- linearly interpolate two Vector3's by an interpolation factor.                    *
+ *   Lerp -- linearly interpolate two Vector3's without return-by-value                        *
+ *   Vector3::Add -- Add two vector3's without return-by-value                                 *
+ *   Vector3::Subtract -- Subtract two vector3's without return-by-value                       *
+ *   Vector3::Update_Min -- sets each component of the vector to the min of this and a         *
+ *   Vector3::Update_Max -- Sets each component of the vector to the max of this and a         *
+ *   Vector3::Scale -- scale this vector by 3 independent scale factors                        *
+ *   Vector3::Rotate_X -- rotates this vector around the X axis                                *
+ *   Vector3::Rotate_X -- Rotates this vector around the x axis                                *
+ *   Vector3::Rotate_Y -- Rotates this vector around the y axis                                *
+ *   Vector3::Rotate_Y -- Rotates this vector around the Y axis                                *
+ *   Vector3::Rotate_Z -- Rotates this vector around the Z axis                                *
+ *   Vector3::Rotate_Z -- Rotates this vector around the Z axis                                *
+ *   Vector3::Is_Valid -- Verifies that each component of this vector is a valid float         *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef VECTOR3_H
+#define VECTOR3_H
+
+#include "always.h"
+#include "wwmath.h"
+#include <assert.h>
+#ifdef _UNIX
+#include "osdep.h"
+#endif
+
+
+/*
+** Vector3 - 3-Dimensional Vectors
+*/
+class Vector3
+{
+
+public:
+
+
+	float	X;
+	float Y;
+	float Z;
+
+
+	// Constructors
+	WWINLINE Vector3(void) {};
+	WWINLINE Vector3(const Vector3 & v) { X = v.X; Y = v.Y; Z = v.Z; }
+	WWINLINE Vector3(float x, float y, float z) { X = x; Y = y; Z = z; }
+	WWINLINE Vector3(const float vector[3]) { X = vector[0]; Y = vector[1]; Z = vector[2]; }
+	
+	// Assignment
+	WWINLINE Vector3 & operator = (const Vector3 & v) { X = v.X; Y = v.Y; Z = v.Z; return *this; }	
+	WWINLINE void	Set(float x, float y, float z) { X = x; Y = y; Z = z; }
+	WWINLINE void	Set(const Vector3 & that) { X = that.X; Y = that.Y; Z = that.Z; }
+
+	// Array access
+	WWINLINE float &	operator [](int i) { return (&X)[i]; }     
+	WWINLINE const float &  operator [](int i) const { return (&X)[i]; }  
+
+	// normalize, compute length
+	void	Normalize(void);
+	WWINLINE float	Length(void) const;
+	WWINLINE float	Length2(void) const;
+	float Quick_Length(void) const;
+	void  Scale(const Vector3 & scale);
+
+	// rotation, (warning, modifies this vector!)
+	WWINLINE void	Rotate_X(float angle);
+	WWINLINE void	Rotate_X(float s_angle,float c_angle);
+	WWINLINE void	Rotate_Y(float angle);
+	WWINLINE void	Rotate_Y(float s_angle,float c_angle);
+	WWINLINE void	Rotate_Z(float angle);
+	WWINLINE void	Rotate_Z(float s_angle,float c_angle);
+
+	// unary operators
+	WWINLINE Vector3 operator-() const { return(Vector3(-X,-Y,-Z)); } 
+	WWINLINE Vector3 operator+() const { return *this; } 
+
+	WWINLINE Vector3 & operator += (const Vector3 & v) { X += v.X; Y += v.Y; Z += v.Z; return *this; }	
+	WWINLINE Vector3 & operator -= (const Vector3 & v) { X -= v.X; Y -= v.Y; Z -= v.Z; return *this; }		
+	WWINLINE Vector3 & operator *= (float k) { X = X*k; Y=Y*k; Z=Z*k; return *this; }
+	WWINLINE Vector3 & operator /= (float k) { float ook=1.0f/k; X=X*ook; Y=Y*ook; Z=Z*ook; return *this; }
+
+	// scalar multiplication, division
+	WWINLINE friend Vector3 operator * (const Vector3 &a,float k);
+	WWINLINE friend Vector3 operator * (float k,const Vector3 &a);
+	WWINLINE friend Vector3 operator / (const Vector3 &a,float k);
+
+	// vector addition,subtraction
+	WWINLINE friend Vector3 operator + (const Vector3 &a,const Vector3 &b);
+	WWINLINE friend Vector3 operator - (const Vector3 &a,const Vector3 &b);
+
+	// Equality operators
+	friend bool operator == (const Vector3 &a,const Vector3 &b);
+	friend bool operator != (const Vector3 &a,const Vector3 &b);
+   WWINLINE friend bool Equal_Within_Epsilon(const Vector3 &a,const Vector3 &b,float epsilon);
+
+	// dot product / inner product
+	//WWINLINE friend float operator * (const Vector3 &a,const Vector3 &b);
+	static WWINLINE float Dot_Product(const Vector3 &a,const Vector3 &b);
+	
+	// cross product / outer product
+#ifdef ALLOW_TEMPORARIES
+	static WWINLINE Vector3 Cross_Product(const Vector3 &a,const Vector3 &b);
+#endif
+	static WWINLINE void Cross_Product(const Vector3 &a,const Vector3 &b,Vector3 * result);
+	static WWINLINE void Normalized_Cross_Product(const Vector3 &a, const Vector3 &b, Vector3 * result);
+	static WWINLINE float Cross_Product_X(const Vector3 &a,const Vector3 &b);
+	static WWINLINE float Cross_Product_Y(const Vector3 &a,const Vector3 &b);
+	static WWINLINE float Cross_Product_Z(const Vector3 &a,const Vector3 &b);
+
+	// add and subtract without return by value
+	static WWINLINE void Add(const Vector3 & a,const Vector3 & b,Vector3 * c);
+	static WWINLINE void Subtract(const Vector3 & a,const Vector3 & b,Vector3 * c);
+	
+	// Line intersection functions.
+	static WWINLINE float Find_X_At_Y(float y, const Vector3 &p1, const Vector3 &p2);
+	static WWINLINE float Find_X_At_Z(float z, const Vector3 &p1, const Vector3 &p2);
+	static WWINLINE float Find_Y_At_X(float x, const Vector3 &p1, const Vector3 &p2);
+	static WWINLINE float Find_Y_At_Z(float z, const Vector3 &p1, const Vector3 &p2);
+	static WWINLINE float Find_Z_At_X(float x, const Vector3 &p1, const Vector3 &p2);
+	static WWINLINE float Find_Z_At_Y(float z, const Vector3 &p1, const Vector3 &p2);
+
+	// make this vector the min or max of itself and the passed vector
+	WWINLINE void Update_Min(const Vector3 & a);
+	WWINLINE void Update_Max(const Vector3 & a);
+	WWINLINE void Cap_Absolute_To(const Vector3 & a);
+
+	// verify that none of the members of this vector are invalid floats
+	WWINLINE bool Is_Valid(void) const;
+
+	static WWINLINE float Quick_Distance(const Vector3 &p1, const Vector3 &p2);
+	static WWINLINE float Distance(const Vector3 &p1, const Vector3 &p2);
+
+	// Linearly interpolate two Vector3's
+	static void Lerp(const Vector3 & a, const Vector3 & b, float alpha,Vector3 * set_result);
+
+	// Color Conversion
+	WWINLINE unsigned	long	Convert_To_ABGR( void ) const;
+	WWINLINE unsigned	long	Convert_To_ARGB( void ) const;
+};
+
+
+/************************************************************************** 
+ * Scalar Multiply Operator -- Multiply a vector by a scalar              * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *   02/24/1997 GH  : Created.                                            * 
+ *========================================================================*/
+WWINLINE Vector3 operator * (const Vector3 &a,float k)
+{
+	return Vector3((a.X * k),(a.Y * k),(a.Z * k));
+}
+
+WWINLINE Vector3 operator * (float k, const Vector3 &a)
+{
+	return Vector3((a.X * k),(a.Y * k),(a.Z * k));
+}
+
+/************************************************************************** 
+ * Scalar Division Operator -- Divide a vector by a scalar                * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE Vector3 operator / (const Vector3 &a,float k)
+{
+	float ook = 1.0f/k;
+	return Vector3((a.X * ook),(a.Y * ook),(a.Z * ook));
+}
+
+/************************************************************************** 
+ * Vector Addition Operator -- Add two vectors                            * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *   02/24/1997 GH  : Created.                                            * 
+ *========================================================================*/
+WWINLINE Vector3 operator + (const Vector3 &a,const Vector3 &b)
+{
+	return Vector3(
+							a.X+b.X,
+							a.Y+b.Y,
+							a.Z+b.Z
+						);
+}
+
+/************************************************************************** 
+ * Vector Subtraction Operator -- Subract two vectors                     * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *   02/24/1997 GH  : Created.                                            * 
+ *========================================================================*/
+WWINLINE Vector3 operator - (const Vector3 &a,const Vector3 &b)
+{
+	return Vector3(
+							a.X-b.X,
+							a.Y-b.Y,
+							a.Z-b.Z
+						);
+}
+
+/************************************************************************** 
+ * Vector Inner Product -- Compute the inner or dot product of two vector * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+//WWINLINE float operator * (const Vector3 &a,const Vector3 &b)
+//{
+//	return	a.X*b.X + 
+//				a.Y*b.Y + 
+//				a.Z*b.Z;
+//}
+
+WWINLINE float Vector3::Dot_Product(const Vector3 &a,const Vector3 &b)
+{
+	return a.X*b.X + 
+				a.Y*b.Y + 
+				a.Z*b.Z;
+}
+
+
+/************************************************************************** 
+ * Vector Equality Operator -- Determine if two vectors are identical     * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE bool operator == (const Vector3 &a,const Vector3 &b)
+{
+	return ( (a.X == b.X) && (a.Y == b.Y) && (a.Z == b.Z));
+}
+
+/************************************************************************** 
+ * Vector Inequality Operator -- Determine if two vectors are identical   * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE bool operator != (const Vector3 &a,const Vector3 &b)
+{
+	return ( (a.X != b.X) || (a.Y != b.Y) || (a.Z != b.Z));
+}
+
+/************************************************************************** 
+ * Equal_Within_Epsilon -- Determine if two vectors are identical within e* 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE bool Equal_Within_Epsilon(const Vector3 &a,const Vector3 &b,float epsilon)
+{
+   return(	(WWMath::Fabs(a.X - b.X) < epsilon) && 
+				(WWMath::Fabs(a.Y - b.Y) < epsilon) && 
+				(WWMath::Fabs(a.Z - b.Z) < epsilon)	);
+}
+
+
+/************************************************************************** 
+ * Cross_Product -- compute the cross product of two vectors              * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+#ifdef ALLOW_TEMPORARIES
+WWINLINE Vector3 Vector3::Cross_Product(const Vector3 &a,const Vector3 &b)
+{
+	return Vector3(
+		(a.Y * b.Z - a.Z * b.Y),
+		(a.Z * b.X - a.X * b.Z),
+		(a.X * b.Y - a.Y * b.X)
+	);
+}
+#endif
+
+WWINLINE void Vector3::Cross_Product(const Vector3 &a,const Vector3 &b,Vector3 * set_result)
+{
+	assert(set_result != &a);
+	set_result->X = (a.Y * b.Z - a.Z * b.Y);
+	set_result->Y = (a.Z * b.X - a.X * b.Z);
+	set_result->Z = (a.X * b.Y - a.Y * b.X);
+}
+
+WWINLINE void Vector3::Normalized_Cross_Product(const Vector3 &a,const Vector3 &b,Vector3 * set_result)
+{
+	assert(set_result != &a);
+	set_result->X = (a.Y * b.Z - a.Z * b.Y);
+	set_result->Y = (a.Z * b.X - a.X * b.Z);
+	set_result->Z = (a.X * b.Y - a.Y * b.X);
+	set_result->Normalize();
+}
+
+WWINLINE float Vector3::Cross_Product_X(const Vector3 &a,const Vector3 &b)
+{
+   return a.Y * b.Z - a.Z * b.Y;
+}
+
+WWINLINE float Vector3::Cross_Product_Y(const Vector3 &a,const Vector3 &b)
+{
+   return a.Z * b.X - a.X * b.Z;
+}
+
+WWINLINE float Vector3::Cross_Product_Z(const Vector3 &a,const Vector3 &b)
+{
+   return a.X * b.Y - a.Y * b.X;
+}
+
+/************************************************************************** 
+ * Vector3::Normalize -- Normalizes the vector.                           * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE void Vector3::Normalize()
+{
+	float len2 = Length2();
+	if (len2 != 0.0f) 
+	{
+		float oolen = WWMath::Inv_Sqrt(len2);
+		X *= oolen;
+		Y *= oolen;
+		Z *= oolen;
+	}
+}
+
+#ifdef ALLOW_TEMPORARIES
+WWINLINE Vector3 Normalize(const Vector3 & vec)
+{
+	float len2 = vec.Length2();
+	if (len2 != 0.0f) 
+	{
+		float oolen = WWMath::Inv_Sqrt(len2);
+		return vec * oolen;
+	}
+	return vec;
+}
+#endif
+
+/************************************************************************** 
+ * Vector3::Length -- Returns the length of the vector                    * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE float Vector3::Length() const
+{
+	return WWMath::Sqrt(Length2());
+}
+
+/************************************************************************** 
+ * Vector3::Length2 -- Returns the square of the length of the vector     * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE float Vector3::Length2() const
+{
+	return X*X + Y*Y + Z*Z;
+}
+
+
+/***********************************************************************************************
+ * Vector3::Quick_Length -- returns a quick approximation of the length                        *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   7/15/98    GTH : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE float Vector3::Quick_Length(void) const
+{
+	// this method of approximating the length comes from Graphics Gems 1 and
+	// supposedly gives an error of +/- 8%
+	float max = WWMath::Fabs(X);
+	float mid = WWMath::Fabs(Y);
+	float min = WWMath::Fabs(Z);
+	float tmp;
+
+	if (max < mid) { tmp = max; max = mid; mid = tmp; }
+	if (max < min) { tmp = max; max = min; min = tmp; }
+	if (mid < min) { tmp = mid; mid = min; min = mid; }
+
+	return max + (11.0f / 32.0f)*mid + (1.0f / 4.0f)*min;
+}
+
+
+/*********************************************************************************************** 
+ * Swap -- swap two Vector3's                                                                  * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   08/11/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE void Swap(Vector3 & a,Vector3 & b)
+{
+	Vector3 tmp(a);
+	a = b;
+	b = tmp;
+}
+
+/***********************************************************************************************
+ * Lerp -- linearly interpolate two Vector3's without return-by-value                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Lerp(const Vector3 & a, const Vector3 & b, float alpha,Vector3 * set_result)
+{
+	assert(set_result != NULL);
+	set_result->X = (a.X + (b.X - a.X)*alpha);
+   set_result->Y = (a.Y + (b.Y - a.Y)*alpha);
+   set_result->Z = (a.Z + (b.Z - a.Z)*alpha);
+}
+
+/***********************************************************************************************
+ * Vector3::Add -- Add two vector3's without return-by-value                                   *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Add(const Vector3 &a,const Vector3 &b,Vector3 * set_result)
+{
+	assert(set_result != NULL);
+	set_result->X = a.X + b.X;
+	set_result->Y = a.Y + b.Y;
+	set_result->Z = a.Z + b.Z;
+}
+
+
+/***********************************************************************************************
+ * Vector3::Subtract -- Subtract two vector3's without return-by-value                         *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Subtract(const Vector3 &a,const Vector3 &b,Vector3 * set_result)
+{
+	assert(set_result != NULL);
+	set_result->X = a.X - b.X;
+	set_result->Y = a.Y - b.Y;
+	set_result->Z = a.Z - b.Z;
+}
+
+
+/***********************************************************************************************
+ * Vector3::Update_Min -- sets each component of the vector to the min of this and a           *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Update_Min(const Vector3 & a)
+{	
+	if (a.X < X) X = a.X;
+	if (a.Y < Y) Y = a.Y;
+	if (a.Z < Z) Z = a.Z;
+}
+
+
+/***********************************************************************************************
+ * Vector3::Update_Max -- Sets each component of the vector to the max of this and a           *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Update_Max(const Vector3 & a)
+{	
+	if (a.X > X) X = a.X;
+	if (a.Y > Y) Y = a.Y;
+	if (a.Z > Z) Z = a.Z;
+}
+
+/***********************************************************************************************
+ * Vector3::Cap_To_Absolute_Of -- Sets each component of the vector to no larger than the -ve or +ve of*
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/29/99   wst : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Cap_Absolute_To(const Vector3 & a)
+{	
+	if (X > 0)
+	{
+		if (a.X < X) X = a.X;
+	}
+	else
+	{
+		if (-a.X > X) X = -a.X;
+	}
+
+	if (Y > 0)
+	{
+		if (a.Y < Y) Y = a.Y;
+	}
+	else
+	{
+		if (-a.Y > Y) Y = -a.Y;
+	}
+
+	if (Z > 0)
+	{
+		if (a.Z < Z) Z = a.Z;
+	}
+	else
+	{
+		if (-a.Z > Z) Z = -a.Z;
+	}
+
+}
+
+/***********************************************************************************************
+ * Vector3::Scale -- scale this vector by 3 independent scale factors                          *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Scale(const Vector3 & scale)
+{
+	X *= scale.X;
+	Y *= scale.Y;
+	Z *= scale.Z;
+}
+
+
+/***********************************************************************************************
+ * Vector3::Rotate_X -- rotates this vector around the X axis                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Rotate_X(float angle)
+{
+	Rotate_X(sinf(angle),cosf(angle));
+}
+
+
+/***********************************************************************************************
+ * Vector3::Rotate_X -- Rotates this vector around the x axis                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Rotate_X(float s_angle,float c_angle)
+{
+	float tmp_y = Y;
+	float tmp_z = Z;
+
+	Y = c_angle * tmp_y - s_angle * tmp_z;
+	Z = s_angle * tmp_y + c_angle * tmp_z;
+}
+
+
+/***********************************************************************************************
+ * Vector3::Rotate_Y -- Rotates this vector around the y axis                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Rotate_Y(float angle)
+{
+	Rotate_Y(sinf(angle),cosf(angle));
+}
+
+
+/***********************************************************************************************
+ * Vector3::Rotate_Y -- Rotates this vector around the Y axis                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Rotate_Y(float s_angle,float c_angle)
+{
+	float tmp_x = X;
+	float tmp_z = Z;
+
+	X = c_angle * tmp_x + s_angle * tmp_z;
+	Z = -s_angle * tmp_x + c_angle * tmp_z;
+}
+
+
+/***********************************************************************************************
+ * Vector3::Rotate_Z -- Rotates this vector around the Z axis                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Rotate_Z(float angle)
+{
+	Rotate_Z(sinf(angle),cosf(angle));
+}
+
+
+/***********************************************************************************************
+ * Vector3::Rotate_Z -- Rotates this vector around the Z axis                                  *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE void Vector3::Rotate_Z(float s_angle,float c_angle)
+{
+	float tmp_x = X;
+	float tmp_y = Y;
+
+	X = c_angle * tmp_x - s_angle * tmp_y;
+	Y = s_angle * tmp_x + c_angle * tmp_y;
+}
+
+
+/***********************************************************************************************
+ * Vector3::Is_Valid -- Verifies that each component of this vector is a valid float           *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE bool Vector3::Is_Valid(void) const
+{
+	return (WWMath::Is_Valid_Float(X) && WWMath::Is_Valid_Float(Y) && WWMath::Is_Valid_Float(Z));
+}
+
+WWINLINE float Vector3::Find_X_At_Y(float y, const Vector3 &p1, const Vector3 &p2) 
+{
+	return(p1.X + ((y - p1.Y) * ((p2.X - p1.X) / (p2.Y - p1.Y))));
+}
+WWINLINE float Vector3::Find_X_At_Z(float z, const Vector3 &p1, const Vector3 &p2) 
+{
+	return(p1.X + ((z - p1.Z) * ((p2.X - p1.X) / (p2.Z - p1.Z))));
+}
+WWINLINE float Vector3::Find_Y_At_X(float x, const Vector3 &p1, const Vector3 &p2)  
+{
+	return(p1.Y + ((x - p1.X) * ((p2.Y - p1.Y) / (p2.X - p1.X))));
+}
+WWINLINE float Vector3::Find_Y_At_Z(float z, const Vector3 &p1, const Vector3 &p2)  
+{
+	return(p1.Y + ((z - p1.Z) * ((p2.Y - p1.Y) / (p2.Z - p1.Z))));
+}
+WWINLINE float Vector3::Find_Z_At_X(float x, const Vector3 &p1, const Vector3 &p2)  
+{
+	return(p1.Z + ((x - p1.X) * ((p2.Z - p1.Z) / (p2.X - p1.X))));
+}
+WWINLINE float Vector3::Find_Z_At_Y(float y, const Vector3 &p1, const Vector3 &p2) 
+{
+	return(p1.Z + ((y - p1.Y) * ((p2.Z - p1.Z) / (p2.Y - p1.Y))));
+}
+
+/***********************************************************************************************
+ * Vector3::Distance -- Accurate distance calculation.                                         *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/29/1999MLL: Created.                                                                   *
+ *=============================================================================================*/
+WWINLINE float Vector3::Distance(const Vector3 &p1, const Vector3 &p2)
+{
+	Vector3	temp;
+	temp = p1 - p2;
+	return (temp.Length());
+}
+
+/***********************************************************************************************
+ * Vector3::Quick_Distance -- Fast but inaccurate distance calculation.                        *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/29/1999MLL: Created.                                                                   *
+ *=============================================================================================*/
+WWINLINE float Vector3::Quick_Distance(const Vector3 &p1, const Vector3 &p2)
+{
+	Vector3	temp;
+	temp = p1 - p2;
+	return (temp.Quick_Length());
+}
+
+/***********************************************************************************************
+ * Vector3::Convert_To_ABGR -- Converts to SR packed color				.                         *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/29/1999MLL: Created.                                                                   *
+ *=============================================================================================*/
+WWINLINE unsigned long	Vector3::Convert_To_ABGR( void ) const 
+{
+	return (unsigned(255)<<24) | 
+			 (unsigned(Z*255.0f)<<16) | 
+			 (unsigned(Y*255.0f)<<8) | 
+			 (unsigned(X*255.0f));
+}
+
+/***********************************************************************************************
+ * Vector3::Convert_To_ARGB -- Converts to packed color				.                         *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   11/29/1999MLL: Created.                                                                   *
+ *=============================================================================================*/
+WWINLINE unsigned long	Vector3::Convert_To_ARGB( void ) const 
+{
+	return (unsigned(255)<<24) | 
+			 (unsigned(X*255.0f)<<16) | 
+			 (unsigned(Y*255.0f)<<8) | 
+			 (unsigned(Z*255.0f));
+}
+
+#endif /* Vector3_H */
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/vector4.h

@@ -0,0 +1,412 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /Commando/Code/wwmath/vector4.h 16    5/11/01 7:11p Jani_p $ */
+/*************************************************************************** 
+ ***                  Confidential - Westwood Studios                    *** 
+ *************************************************************************** 
+ *                                                                         * 
+ *                 Project Name : Westwood 3D                              * 
+ *                                                                         * 
+ *                    File Name : VECTOR4.H                                * 
+ *                                                                         * 
+ *                   Programmer : Greg Hjelstrom                           * 
+ *                                                                         * 
+ *                   Start Date : 02/24/97                                 * 
+ *                                                                         * 
+ *                  Last Update : June 2, 1997 [GH]                        * 
+ *                                                                         * 
+ *-------------------------------------------------------------------------* 
+ * Functions:                                                              * 
+ *   Scalar Division Operator -- Divide a vector by a scalar               * 
+ *   Scalar Multiply Operator -- Multiply a vector by a scalar             * 
+ *   Vector Addition Operator -- Add two vectors                           * 
+ *   Vector Subtraction Operator -- Subract two vectors                    * 
+ *   Vector Inner Product Operator -- Compute the inner or dot product     * 
+ *   Vector Equality Operator -- Detemine if two vectors are identical     * 
+ *   Vector Inequality Operator -- Detemine if two vectors are identical   * 
+ *   Swap -- swap two Vector4's                                            * 
+ *   Vector4::Is_Valid -- Vector4::Is_Valid                                *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef VECTOR4_H
+#define VECTOR4_H
+
+#include "always.h"
+#include "wwmath.h"
+#include <math.h>
+
+/*
+** Vector4 - 4 dimensional vectors
+*/
+class Vector4
+{
+
+public:
+
+	float X;
+	float Y;
+	float Z;
+	float W;
+
+
+	// Constructors
+	WWINLINE Vector4(void) {};
+	WWINLINE Vector4(const Vector4 & v) { X = v.X; Y = v.Y; Z = v.Z; W = v.W; }
+	WWINLINE Vector4(float x, float y, float z, float w) { X = x; Y = y; Z = z; W = w; }
+	WWINLINE Vector4(const float vector[4]) { X = vector[0]; Y = vector[1]; Z = vector[2]; W = vector[3]; }
+	
+	// Assignment
+	WWINLINE Vector4 & operator = (const Vector4 & v) { X = v.X; Y = v.Y; Z = v.Z; W = v.W; return *this; }	
+	WWINLINE void	Set(float x, float y, float z, float w) { X = x; Y = y; Z = z; W = w; }
+	
+	// Array access
+	WWINLINE float &	operator [](int i) { return (&X)[i]; }     
+	WWINLINE const float &  operator [](int i) const { return (&X)[i]; }  
+
+	// normalize, compute length
+	void	Normalize(void);
+	WWINLINE float	Length(void) const;
+	WWINLINE float Length2(void) const;
+
+	// unary operators
+	WWINLINE Vector4 operator-() const { return(Vector4(-X,-Y,-Z,-W)); } 
+	WWINLINE Vector4 operator+() const { return *this; } 
+
+	WWINLINE Vector4 & operator += (const Vector4 & v) { X += v.X; Y += v.Y; Z += v.Z; W += v.W; return *this; }	
+	WWINLINE Vector4 & operator -= (const Vector4 & v) { X -= v.X; Y -= v.Y; Z -= v.Z; W += v.W; return *this; }		
+	WWINLINE Vector4 & operator *= (float k) { X = X*k; Y=Y*k; Z=Z*k; W=W*k; return *this; }
+	WWINLINE Vector4 & operator /= (float k) { k=1.0f/k; X = X*k; Y=Y*k; Z=Z*k; W=W*k; return *this; }
+
+	// scalar multiplication, division
+	WWINLINE friend Vector4 operator * (const Vector4 &a,float k);
+	WWINLINE friend Vector4 operator * (float k,const Vector4 &a);
+	WWINLINE friend Vector4 operator / (const Vector4 &a,float k);
+
+	// vector addition,subtraction
+	WWINLINE friend Vector4 operator + (const Vector4 &a,const Vector4 &b);
+	WWINLINE friend Vector4 operator - (const Vector4 &a,const Vector4 &b);
+
+	// dot product / inner product
+	WWINLINE friend float operator * (const Vector4 &a,const Vector4 &b);
+	static WWINLINE float Dot_Product(const Vector4 &a,const Vector4 &b);
+	
+	// Equality operators
+	friend bool operator == (const Vector4 &a,const Vector4 &b);
+	friend bool operator != (const Vector4 &a,const Vector4 &b);
+
+	// Linearly interpolate between two Vector4's
+	static Vector4 Lerp(const Vector4 & a, const Vector4 & b, float alpha);
+	static void Lerp(const Vector4 & a, const Vector4 & b, float alpha,Vector4 * set_result);
+
+	// verify that none of the members of this vector are invalid floats
+	WWINLINE bool Is_Valid(void) const;
+};
+
+/************************************************************************** 
+ * Scalar Multiply Operator -- Multiply a vector by a scalar              * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *   02/24/1997 GH  : Created.                                            * 
+ *========================================================================*/
+WWINLINE Vector4 operator * (const Vector4 &a,float k)
+{
+	return Vector4((a.X * k),(a.Y * k),(a.Z * k),(a.W * k));
+}
+
+WWINLINE Vector4 operator * (float k, const Vector4 &a)
+{
+	return a*k;
+}
+
+/************************************************************************** 
+ * Scalar Division Operator -- Divide a vector by a scalar                * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE Vector4 operator / (const Vector4 &a,float k)
+{
+	float ook=1.0f/k;
+	return Vector4((a[0] * ook),(a[1] * ook),(a[2] * ook),(a[3] * ook));
+}
+
+/************************************************************************** 
+ * Vector Addition Operator -- Add two vectors                            * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *   02/24/1997 GH  : Created.                                            * 
+ *========================================================================*/
+WWINLINE Vector4 operator + (const Vector4 &a,const Vector4 &b)
+{
+	return Vector4(
+							a[0]+b[0],
+							a[1]+b[1],
+							a[2]+b[2],
+							a[3]+b[3]
+						);
+}
+
+/************************************************************************** 
+ * Vector Subtraction Operator -- Subract two vectors                     * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *   02/24/1997 GH  : Created.                                            * 
+ *========================================================================*/
+WWINLINE Vector4 operator - (const Vector4 &a,const Vector4 &b)
+{
+	return Vector4(
+							a[0]-b[0],
+							a[1]-b[1],
+							a[2]-b[2],
+							a[3]-b[3]
+						);
+}
+
+/************************************************************************** 
+ * Vector Inner Product -- Compute the inner or dot product of two vector * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE float operator * (const Vector4 &a,const Vector4 &b)
+{
+	return	a[0]*b[0] + 
+				a[1]*b[1] + 
+				a[2]*b[2] + 
+				a[3]*b[3];
+}
+
+WWINLINE float Vector4::Dot_Product(const Vector4 &a,const Vector4 &b)
+{
+	return a*b;
+}
+
+
+/************************************************************************** 
+ * Vector Equality Operator -- Detemine if two vectors are identical      * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE bool operator == (const Vector4 &a,const Vector4 &b)
+{
+	return ( (a[0] == b[0]) && (a[1] == b[1]) && (a[2] == b[2]) && (a[3] == b[3]));
+}
+
+/************************************************************************** 
+ * Vector Inequality Operator -- Detemine if two vectors are identical    * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE bool operator != (const Vector4 &a,const Vector4 &b)
+{
+	return ( (a[0] != b[0]) || (a[1] != b[1]) || (a[2] != b[2]) || (a[3] != b[3]));
+}
+
+/************************************************************************** 
+ * Vector4::Normalize -- Normalizes the vector.                           * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE void Vector4::Normalize()
+{
+	float len2 = Length2();
+	if (len2 != 0.0f) {
+		float oolen = WWMath::Inv_Sqrt(len2);
+		X *= oolen;
+		Y *= oolen;
+		Z *= oolen;
+		W *= oolen;
+	}
+}
+
+WWINLINE Vector4 Normalize(const Vector4 & vec)
+{
+	float len2 = vec.Length2();
+	if (len2 != 0.0f) {
+		float oolen = WWMath::Inv_Sqrt(len2);
+		return vec * oolen;
+	}
+	return Vector4(0.0f,0.0f,0.0f,0.0f);
+}
+
+/************************************************************************** 
+ * Vector4::Length -- Returns the length of the vector                    * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE float Vector4::Length() const
+{
+	return WWMath::Sqrt(Length2());
+}
+
+/************************************************************************** 
+ * Vector4::Length -- Returns the square of the length of the vector      * 
+ *                                                                        * 
+ * INPUT:                                                                 * 
+ *                                                                        * 
+ * OUTPUT:                                                                * 
+ *                                                                        * 
+ * WARNINGS:                                                              * 
+ *                                                                        * 
+ * HISTORY:                                                               * 
+ *========================================================================*/
+WWINLINE float Vector4::Length2() const
+{
+	return X*X + Y*Y + Z*Z + W*W;
+}
+
+
+/*********************************************************************************************** 
+ * Swap -- swap two Vector4's                                                                  * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS:                                                                                   * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   06/02/1997 GH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE void Swap(Vector4 & a,Vector4 & b)
+{
+	Vector4 tmp(a);
+	a = b;
+	b = tmp;
+}
+
+/*********************************************************************************************** 
+ * Lerp -- linearly interpolate two Vector4's by an interpolation factor.                      * 
+ *                                                                                             * 
+ * INPUT:                                                                                      * 
+ *                                                                                             * 
+ * OUTPUT:                                                                                     * 
+ *                                                                                             * 
+ * WARNINGS: No checking is done to ensure that alpha is between 0 and 1.                      * 
+ *                                                                                             * 
+ * HISTORY:                                                                                    * 
+ *   01/14/1999 NH  : Created.                                                                 * 
+ *=============================================================================================*/
+WWINLINE Vector4 Lerp(const Vector4 & a, const Vector4 & b, float alpha)
+{
+   return Vector4(
+      (a.X + (b.X - a.X)*alpha),
+      (a.Y + (b.Y - a.Y)*alpha),
+      (a.Z + (b.Z - a.Z)*alpha),
+      (a.W + (b.W - a.W)*alpha)
+   );
+}
+
+WWINLINE Vector4 Vector4::Lerp(const Vector4 & a, const Vector4 & b, float alpha)
+{
+   return Vector4(
+      (a.X + (b.X - a.X)*alpha),
+      (a.Y + (b.Y - a.Y)*alpha),
+      (a.Z + (b.Z - a.Z)*alpha),
+      (a.W + (b.W - a.W)*alpha)
+   );
+}
+
+WWINLINE void Vector4::Lerp(const Vector4 & a, const Vector4 & b, float alpha,Vector4 * set_result)
+{
+   set_result->X = (a.X + (b.X - a.X)*alpha);
+	set_result->Y = (a.Y + (b.Y - a.Y)*alpha);
+	set_result->Z = (a.Z + (b.Z - a.Z)*alpha);
+	set_result->X = (a.W + (b.W - a.W)*alpha);
+}
+
+/***********************************************************************************************
+ * Vector4::Is_Valid -- Vector4::Is_Valid                                                      *
+ *                                                                                             *
+ *    verifies that all members of this vector are valid floats                                *
+ *                                                                                             *
+ *                                                                                             *
+ * INPUT:                                                                                      *
+ *                                                                                             *
+ * OUTPUT:                                                                                     *
+ *                                                                                             *
+ * WARNINGS:                                                                                   *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   10/18/99   gth : Created.                                                                 *
+ *=============================================================================================*/
+WWINLINE bool Vector4::Is_Valid(void) const
+{
+	return (WWMath::Is_Valid_Float(X) && WWMath::Is_Valid_Float(Y) && WWMath::Is_Valid_Float(Z) && WWMath::Is_Valid_Float(W));
+}
+
+
+#endif /* VECTOR4_H */
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/vehiclecurve.cpp

@@ -0,0 +1,686 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : LevelEdit                                                    *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/vehiclecurve.cpp        $*
+ *                                                                                             *
+ *                       Author:: Patrick Smith                                                *
+ *                                                                                             *
+ *                     $Modtime:: 6/12/01 10:02a                                              $*
+ *                                                                                             *
+ *                    $Revision:: 8                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "vehiclecurve.h"
+#include "vector3.h"
+#include "matrix3d.h"
+#include "persistfactory.h"
+#include "wwmathids.h"
+#include "wwmemlog.h"
+
+
+//////////////////////////////////////////////////////////////////////
+// Save-Load stuff
+//////////////////////////////////////////////////////////////////////
+SimplePersistFactoryClass<VehicleCurveClass,WWMATH_CHUNKID_VEHICLECURVE>	_VehicleCurveFactory;
+
+////////////////////////////////////////////////////////////////
+//	Save/Load constants
+////////////////////////////////////////////////////////////////
+enum
+{
+	CHUNKID_PARENT					= 0x11071217,
+	CHUNKID_ARC_INFO,
+	CHUNKID_VARIABLES
+};
+
+enum
+{
+	VARID_IS_DIRTY					= 1,
+	VARID_RADIUS,
+};
+
+
+//////////////////////////////////////////////////////////////////////
+//	Local prototypes
+//////////////////////////////////////////////////////////////////////
+bool	Find_Tangent (const Vector3 &center, float radius, const Vector3 &point, bool clockwise, float *result);
+float	Get_Angle_Delta (float angle1, float angle2, bool clockwise);
+void	Find_Turn_Arc (const Matrix3D &transform, float radius, const Vector3 &prev_pt, const Vector3 &curr_pt, const Vector3 &next_pt, Vector3 *arc_center, bool *is_right_turn);
+void	Find_Tangents (float radius, const Vector3 &prev_pt, const Vector3 &curr_pt, const Vector3 &next_pt, const Vector3 &arc_center, bool is_right_turn, float *point_angle, float *angle_in_delta, float *angle_out_delta);
+
+
+//////////////////////////////////////////////////////////////////////
+//
+//	Find_Tangent
+//
+//////////////////////////////////////////////////////////////////////
+bool
+Find_Tangent
+(
+	const Vector3 &	center,
+	float					radius,
+	const Vector3 &	point,
+	bool					clockwise,
+	float	*				result
+)
+{
+	bool retval = false;
+
+	//
+	//	Calculate the distance from the point to the center of the circle
+	//
+	float delta_x = point.X - center.X;
+	float delta_y = point.Y - center.Y;
+	float dist = ::sqrt (delta_x * delta_x + delta_y * delta_y);
+	if (dist >= radius) {
+
+		//
+		//	Determine the offset angle (from the line between the point and center)
+		// where the 2 tangent points lie.
+		//
+		float angle_offset	= WWMath::Acos (radius / dist);
+		float base_angle		= WWMath::Atan2 (delta_x, -delta_y);
+		base_angle = WWMath::Wrap (base_angle, 0, DEG_TO_RADF (360));
+
+		//
+		//	Determine which tangent angle we would come across first, depending
+		// on our orientation
+		//
+		float angle = 0;
+		if (clockwise) {
+			angle = base_angle - angle_offset;
+		} else {
+			angle = base_angle + angle_offset;
+		}
+		angle = WWMath::Wrap (angle, 0, DEG_TO_RADF (360));
+		(*result) = angle;
+
+		retval = true;
+	}
+
+	return retval;
+}
+
+
+//////////////////////////////////////////////////////////////////////
+//
+//	Get_Angle_Delta
+//
+//	Angle deltas need to be wrapped around 360 degrees differently
+// depending on the orientation (clockwise/counterclockwise).  This
+// function takes orientation into consideration when determining
+// the delta.
+//
+//////////////////////////////////////////////////////////////////////
+float
+Get_Angle_Delta
+(
+	float	angle1,
+	float angle2,
+	bool	clockwise
+)
+{
+	float result = angle1 - angle2;
+
+	if (clockwise) {
+		if (angle1 < angle2) {
+			result = angle1 - (angle2 - DEG_TO_RADF (360));
+		}
+	} else {
+		if (angle1 > angle2) {
+			result = (angle1 - DEG_TO_RADF (360)) - angle2;
+		}
+	}
+
+	return result;
+}
+
+
+//////////////////////////////////////////////////////////////////////
+//
+//	Find_Turn_Arc
+//
+//////////////////////////////////////////////////////////////////////
+void
+Find_Turn_Arc
+(
+	const Matrix3D &	transform,
+	float					radius,
+	const Vector3 &	prev_pt,
+	const Vector3 &	curr_pt,
+	const Vector3 &	next_pt,
+	Vector3 *			arc_center,
+	bool *				is_right_turn
+)
+{
+	//
+	//	The center of the turn arc can lie anywhere on the circle centered
+	// at the current point and 'radius' meters in radius.
+	//
+	//	We will assume the optimal center of the turn arc will lie at
+	// the point halfway between the angles formed by the (prev-curr) and
+	// (next-curr) vectors.
+	//
+	float angle1 = ::WWMath::Atan2 ((prev_pt.Y - curr_pt.Y), prev_pt.X - curr_pt.X);
+	angle1 = WWMath::Wrap (angle1, 0, DEG_TO_RADF (360));
+
+	float angle2 = ::WWMath::Atan2 ((next_pt.Y - curr_pt.Y), next_pt.X - curr_pt.X);
+	angle2 = WWMath::Wrap (angle2, 0, DEG_TO_RADF (360));
+
+	float avg_angle = (angle1 + angle2) * 0.5F;
+
+	//
+	//	Find the shortest delta between the two angles (either clockwise or
+	// counterclockwise).
+	//
+	float delta1 = WWMath::Fabs (::Get_Angle_Delta (angle1, angle2, true));
+	float delta2 = WWMath::Fabs (::Get_Angle_Delta (angle1, angle2, false));
+	if (delta1 < delta2) {
+		avg_angle = angle1 - (delta1 * 0.5F);
+	} else {
+		avg_angle = angle1 + (delta2 * 0.5F);
+	}
+
+	//
+	//	Find the point on the circle at this angle
+	//
+	arc_center->X = curr_pt.X + (radius * ::WWMath::Cos (avg_angle));
+	arc_center->Y = curr_pt.Y + (radius * ::WWMath::Sin (avg_angle));
+	arc_center->Z = curr_pt.Z;	
+
+	//
+	//	Will we be making a right turn or a left turn?
+	//
+	Vector3 rel_center;
+	Matrix3D::Inverse_Transform_Vector (transform, *arc_center, &rel_center);
+	(*is_right_turn) = (rel_center.Y > 0);
+	return ;
+}
+
+
+//////////////////////////////////////////////////////////////////////
+//
+//	Find_Tangents
+//
+//////////////////////////////////////////////////////////////////////
+void
+Find_Tangents
+(
+	float					radius,
+	const Vector3 &	prev_pt,
+	const Vector3 &	curr_pt,
+	const Vector3 &	next_pt,
+	const Vector3 &	arc_center,
+	bool					is_right_turn,
+	float *				point_angle,
+	float *				angle_in_delta,
+	float *				angle_out_delta
+)
+{
+
+	//
+	//	Find the 'in' and 'out' tangent angles
+	//
+	float angle_in	= 0;
+	float angle_out = 0;
+	bool valid_in = ::Find_Tangent (arc_center, radius, prev_pt, is_right_turn, &angle_in);
+	bool valid_out = ::Find_Tangent (arc_center, radius, next_pt, !is_right_turn, &angle_out);
+
+	//
+	//	Find the angle where the current position lies on the turn arc
+	//
+	(*point_angle) = ::WWMath::Atan2 (curr_pt.X - arc_center.X, -(curr_pt.Y - arc_center.Y));	
+	(*point_angle) = WWMath::Wrap ((*point_angle), 0, DEG_TO_RADF (360));
+
+	//
+	//	If the tangent-in is valid, find its delta from the 'point angle.
+	//
+	if (valid_in) {
+		(*angle_in_delta) = ::Get_Angle_Delta (angle_in, (*point_angle), is_right_turn);
+	} else {
+		(*angle_in_delta) = 0;
+	}
+
+	//
+	//	If the tangent-out is valid, find its delta from the 'point angle.
+	//
+	if (valid_out) {
+		(*angle_out_delta) = ::Get_Angle_Delta (angle_out, (*point_angle), !is_right_turn);
+	} else {
+		(*angle_out_delta) = 0;
+	}
+
+	return ;
+}
+
+
+//////////////////////////////////////////////////////////////////////
+//
+//	Update_Arc_List
+//
+//////////////////////////////////////////////////////////////////////
+void
+VehicleCurveClass::Update_Arc_List (void)
+{
+	WWMEMLOG(MEM_PATHFIND);
+	m_ArcList.Delete_All ();
+	
+	//
+	//	Bail out if there is nothing to do
+	//
+	int count = Key_Count ();
+	if (count == 0) {
+		return ;
+	}
+
+	//
+	//	Add a record for the starting point of the arc...
+	//
+	ArcInfoStruct arc_start;
+	arc_start.point_in			= Keys[0].Point;
+	arc_start.point_out			= Keys[0].Point;
+	arc_start.center				= Keys[0].Point;
+	arc_start.point_angle		= 0;
+	arc_start.radius				= 0;
+	arc_start.angle_in_delta	= 0;
+	arc_start.angle_out_delta	= 0;
+	m_ArcList.Add (arc_start);
+	
+	//
+	//	Loop over each 'interior' point and generate arc information
+	// for each.
+	//
+	for (int index = 1; index < count - 1; index ++) {
+
+		//
+		//	Get information about the previous, next, and current points.
+		//
+		Vector3 prev_pt;
+		Vector3 next_pt;
+		Vector3 curr_pt;
+		float time = 0;
+		Get_Key (index-1, &prev_pt, &time);
+		Get_Key (index,	&curr_pt, &time);
+		Get_Key (index+1, &next_pt, &time);
+
+		//
+		//	Determine the last known point on the path
+		//
+		Vector3 last_path_pt = m_ArcList[index-1].point_out;
+
+		//
+		//	Create a transformation matrix to simulate the vehicle's position and
+		// orientation at the last point...
+		//
+		Vector3 x_vector (curr_pt - last_path_pt);
+		Vector3 z_vector (0, 0, 1);
+		x_vector.Normalize ();
+#ifdef ALLOW_TEMPORARIES
+		Vector3 y_vector = Vector3::Cross_Product (x_vector, z_vector);
+#else
+		Vector3 y_vector;
+		Vector3::Cross_Product (x_vector, z_vector, &y_vector);
+#endif
+		Matrix3D tm (x_vector, y_vector, z_vector, last_path_pt);
+
+		//
+		//	Find where the turn arc should be centered and whether we should
+		// make a right-turn or a left turn...
+		//
+		bool is_right_turn = false;
+		Vector3 arc_center (0, 0, 0);
+		::Find_Turn_Arc (	tm,
+								m_Radius,
+								last_path_pt,
+								curr_pt,
+								next_pt,
+								&arc_center,
+								&is_right_turn);
+
+		//
+		//	Determine where the vehicle should enter and exit the turn
+		//
+		float angle_in_delta		= 0;
+		float angle_out_delta	= 0;
+		float point_angle			= 0;
+		::Find_Tangents (	m_Radius,
+								last_path_pt,
+								curr_pt,
+								next_pt,
+								arc_center,
+								is_right_turn,
+								&point_angle,
+								&angle_in_delta,
+								&angle_out_delta);
+
+		//
+		//	Determine at what points these angles intersect the arc
+		//
+		Vector3 point_in (0, 0, 0);
+		point_in.X = arc_center.X + (m_Radius * ::WWMath::Sin (point_angle + angle_in_delta));
+		point_in.Y = arc_center.Y + (m_Radius * -::WWMath::Cos (point_angle + angle_in_delta));
+
+		Vector3 point_out (0, 0, 0);
+		point_out.X = arc_center.X + (m_Radius * ::WWMath::Sin (point_angle + angle_out_delta));
+		point_out.Y = arc_center.Y + (m_Radius * -::WWMath::Cos (point_angle + angle_out_delta));
+
+		//
+		//	Sanity check to ensure the vehicle doesn't try to go the long way around the
+		// turn arc...
+		//
+		if (	angle_in_delta > DEG_TO_RADF (200) || angle_out_delta > DEG_TO_RADF (200) ||
+				angle_in_delta < -DEG_TO_RADF (200) || angle_out_delta < -DEG_TO_RADF (200) )
+		{
+			//
+			//	Record information about this arc
+			//
+			ArcInfoStruct arc_info;	
+			arc_info.center				= curr_pt;
+			arc_info.point_angle			= 0;
+			arc_info.point_in				= curr_pt;
+			arc_info.point_out			= curr_pt;
+			arc_info.radius				= 0;
+			arc_info.angle_in_delta		= 0;
+			arc_info.angle_out_delta	= 0;
+			m_ArcList.Add (arc_info);
+
+		} else {
+
+			//
+			//	Record information about this arc
+			//
+			ArcInfoStruct arc_info;	
+			arc_info.center				= arc_center;
+			arc_info.point_angle			= point_angle;
+			arc_info.point_in				= point_in;
+			arc_info.point_out			= point_out;
+			arc_info.radius				= m_Radius;
+			arc_info.angle_in_delta		= angle_in_delta;
+			arc_info.angle_out_delta	= angle_out_delta;
+			m_ArcList.Add (arc_info);
+		}
+	}
+
+	//
+	//	Add a record for the starting point of the arc...
+	//
+	if (count > 1) {
+		ArcInfoStruct arc_end;
+		arc_end.point_in				= Keys[count-1].Point;
+		arc_end.point_out				= Keys[count-1].Point;
+		arc_end.center					= Keys[count-1].Point;
+		arc_end.point_angle			= 0;
+		arc_end.radius					= 0;
+		arc_end.angle_in_delta		= 0;
+		arc_end.angle_out_delta		= 0;
+		m_ArcList.Add (arc_end);
+	}
+
+	m_IsDirty = false;
+	return ;
+}
+
+
+//////////////////////////////////////////////////////////////////////
+//
+//	Evaluate
+//
+//////////////////////////////////////////////////////////////////////
+void
+VehicleCurveClass::Evaluate (float time, Vector3 *set_val)
+{
+	int count = Keys.Count ();
+	m_Sharpness = 0;
+
+	if (time < Keys[0].Time) {
+		*set_val		= Keys[0].Point;
+		m_LastTime	= Keys[0].Time;
+		return;
+	}
+
+	if (time >= Keys[count - 1].Time) {
+		*set_val		= Keys[count - 1].Point;
+		m_LastTime	= Keys[count - 1].Time;
+		return;
+	}
+
+	//
+	//	Update the arc information if any of the keys have changed...
+	//
+	if (m_IsDirty) {
+		Update_Arc_List ();
+	}
+
+	//
+	//	Determine which segment we are on
+	//
+	int index0 = 0;
+	int index1 = 0;
+	float seg_time = 0;
+	Find_Interval (time, &index0, &index1, &seg_time);
+
+	ArcInfoStruct &arc_info0 = m_ArcList[index0];
+	ArcInfoStruct &arc_info1 = m_ArcList[index1];
+
+	//
+	//	Determine the lengths of each segment of this curve.
+	// The segments are:
+	//		- Exit curve from prev point
+	//		- Straight line from exit of last curve to enter of this curve
+	//		- Enter curve for the current point
+	//
+	float arc_length0		= arc_info0.radius * WWMath::Fabs (arc_info0.angle_out_delta);
+	float arc_length1		= arc_info1.radius * WWMath::Fabs (arc_info1.angle_in_delta);
+	float other_length	= ((arc_info1.point_in - arc_info0.point_out).Length ()) / 2;
+	float total_length	= arc_length0 + arc_length1 + other_length;
+
+	//
+	//	Determine at what times we should switch between parts of the segment
+	//
+	float time1 = arc_length0 / total_length;
+	float time2 = (arc_length0 + other_length) / total_length;
+
+	//
+	//	Determine which part of the segment we are on
+	//
+	if (seg_time < time1) {
+		
+		//
+		//	We are on the initial curve of the segment, so calculate where
+		// on the curve we are...
+		//
+		//float percent = seg_time / time1;
+		//float angle = arc_info0.point_angle + (arc_info0.angle_out_delta) * percent;
+		float angle = arc_info0.point_angle + arc_info0.angle_out_delta;
+
+		set_val->X = arc_info0.center.X + (arc_info0.radius * ::WWMath::Sin (angle));
+		set_val->Y = arc_info0.center.Y + (arc_info0.radius * -::WWMath::Cos (angle));
+
+		m_Sharpness = WWMath::Clamp (WWMath::Fabs (arc_info0.angle_out_delta) / DEG_TO_RADF (15), 0, 1.0F);
+		m_SharpnessPos.X = set_val->X;
+		m_SharpnessPos.Y = set_val->Y;
+		m_SharpnessPos.Z = Keys[index0].Point.Z + (Keys[index1].Point.Z - Keys[index0].Point.Z) * seg_time;
+
+		m_LastTime = Keys[index0].Time + (Keys[index1].Time - Keys[index0].Time) * time1;
+
+	} else if (seg_time < time2) {
+
+		//
+		//	We are on the line between the two curves, so calculate where on
+		// the line we are
+		//			
+		float percent = (seg_time - time1) / (time2 - time1);
+
+		if (percent == 0) {
+			set_val->X = arc_info0.point_out.X;
+			set_val->Y = arc_info0.point_out.Y;
+		} else {
+			set_val->X = arc_info1.point_in.X;
+			set_val->Y = arc_info1.point_in.Y;			
+		}
+
+		//set_val->X = arc_info0.point_out.X + (arc_info1.point_in.X - arc_info0.point_out.X) * percent;
+		//set_val->Y = arc_info0.point_out.Y + (arc_info1.point_in.Y - arc_info0.point_out.Y) * percent;
+
+		m_Sharpness = WWMath::Clamp (WWMath::Fabs (arc_info1.angle_out_delta) / DEG_TO_RADF (15), 0, 1.0F);
+		m_SharpnessPos = arc_info1.point_in;
+		
+		m_LastTime = Keys[index0].Time + (Keys[index1].Time - Keys[index0].Time) * time2;
+		
+	} else {
+
+		//
+		//	We are on the ending curve of the segment, so calculate where
+		// on the curve we are...
+		//
+		/*float percent = 1.0F - ((seg_time - time2) / (1.0F - time2));
+		float angle = arc_info1.point_angle + (arc_info1.angle_in_delta * percent);
+		
+		set_val->X = arc_info1.center.X + (arc_info1.radius * ::WWMath::Sin (angle));
+		set_val->Y = arc_info1.center.Y + (arc_info1.radius * -::WWMath::Cos (angle));			*/
+
+		float angle = arc_info1.point_angle + (arc_info1.angle_out_delta);
+
+		set_val->X = arc_info1.center.X + (arc_info1.radius * ::WWMath::Sin (angle));
+		set_val->Y = arc_info1.center.Y + (arc_info1.radius * -::WWMath::Cos (angle));		
+
+		m_Sharpness = WWMath::Clamp (WWMath::Fabs (arc_info1.angle_out_delta) / DEG_TO_RADF (15), 0, 1.0F);
+		m_SharpnessPos.X = set_val->X;
+		m_SharpnessPos.Y = set_val->Y;
+		m_SharpnessPos.Z = Keys[index0].Point.Z + (Keys[index1].Point.Z - Keys[index0].Point.Z) * seg_time;
+
+		m_LastTime = Keys[index1].Time;
+	}
+
+	//
+	//	Our Z value is just a linear interpolation
+	//
+	set_val->Z = Keys[index0].Point.Z + (Keys[index1].Point.Z - Keys[index0].Point.Z) * seg_time;	
+	return ;
+}
+
+const PersistFactoryClass & VehicleCurveClass::Get_Factory(void) const
+{
+	return _VehicleCurveFactory;
+}
+
+
+////////////////////////////////////////////////////////////////////////////////////////////
+//
+//	Save
+//
+////////////////////////////////////////////////////////////////////////////////////////////
+bool
+VehicleCurveClass::Save (ChunkSaveClass &csave)
+{
+	csave.Begin_Chunk (CHUNKID_PARENT);
+		Curve3DClass::Save (csave);
+	csave.End_Chunk ();
+
+	csave.Begin_Chunk (CHUNKID_VARIABLES);
+
+		//
+		//	Save each variable to its own microchunk
+		//
+		WRITE_MICRO_CHUNK (csave, VARID_IS_DIRTY,		m_IsDirty);
+		WRITE_MICRO_CHUNK (csave, VARID_RADIUS,		m_Radius);
+		
+	csave.End_Chunk ();
+
+	//
+	//	Save each arc info struct to its own chunk
+	//
+	for (int index = 0; index < m_ArcList.Count (); index ++) {
+		ArcInfoStruct &arc_info = m_ArcList[index];
+
+		csave.Begin_Chunk (CHUNKID_ARC_INFO);
+			csave.Write (&arc_info, sizeof (arc_info));
+		csave.End_Chunk ();
+	}
+	
+	return true;
+}
+
+
+////////////////////////////////////////////////////////////////////////////////////////////
+//
+//	Load
+//
+////////////////////////////////////////////////////////////////////////////////////////////
+bool
+VehicleCurveClass::Load (ChunkLoadClass &cload)
+{
+	while (cload.Open_Chunk ()) {		
+		switch (cload.Cur_Chunk_ID ()) {
+			
+			case CHUNKID_PARENT:
+				Curve3DClass::Load (cload);
+				break;
+
+			case CHUNKID_ARC_INFO:
+			{
+				ArcInfoStruct arc_info;
+				cload.Read (&arc_info, sizeof (arc_info));
+				m_ArcList.Add (arc_info);
+			}
+			break;
+
+			case CHUNKID_VARIABLES:
+				Load_Variables (cload);
+				break;
+		}
+
+		cload.Close_Chunk ();
+	}
+
+	return true;
+}
+
+
+///////////////////////////////////////////////////////////////////////
+//
+//	Load_Variables
+//
+///////////////////////////////////////////////////////////////////////
+void
+VehicleCurveClass::Load_Variables (ChunkLoadClass &cload)
+{
+	//
+	//	Loop through all the microchunks that define the variables
+	//
+	while (cload.Open_Micro_Chunk ()) {
+		switch (cload.Cur_Micro_Chunk_ID ()) {
+
+			READ_MICRO_CHUNK (cload, VARID_IS_DIRTY,	m_IsDirty);
+			READ_MICRO_CHUNK (cload, VARID_RADIUS,		m_Radius);
+		}
+
+		cload.Close_Micro_Chunk ();
+	}
+
+	return ;
+}

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/vehiclecurve.h

@@ -0,0 +1,210 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : LevelEdit                                                    *
+ *                                                                                             *
+ *                     $Archive:: /VSS_Sync/wwmath/vehiclecurve.h              $*
+ *                                                                                             *
+ *                       Author:: Patrick Smith                                                *
+ *                                                                                             *
+ *                     $Modtime:: 6/13/01 2:18p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 6                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef __VEHICLE_CURVE_H
+#define __VEHICLE_CURVE_H
+
+#include "curve.h"
+#include "vector.h"
+
+
+////////////////////////////////////////////////////////////////////////////////////////////
+//
+//	VehicleCurveClass
+//
+//	A vehicle curve represents the path a vehicle would take through a series of points.
+// Each point on the curve passes through a turn-arc of the vehicle.  The size of this
+// arc is determined by the turn radius which is used to initialize the curve.
+//
+////////////////////////////////////////////////////////////////////////////////////////////
+class VehicleCurveClass : public Curve3DClass
+{
+public:
+
+	///////////////////////////////////////////////////////////////////////////
+	//	Public constructors/destructors
+	///////////////////////////////////////////////////////////////////////////
+	VehicleCurveClass (void)
+		:	m_IsDirty (true),
+			m_Radius (0),
+			m_LastTime (0),
+			m_Sharpness (0),
+			m_SharpnessPos (0, 0, 0),
+			Curve3DClass () { }
+
+	VehicleCurveClass (float radius)
+		:	m_IsDirty (true),
+			m_Radius (radius),
+			m_LastTime (0),
+			m_Sharpness (0),
+			m_SharpnessPos (0, 0, 0),
+			Curve3DClass () { }
+
+	virtual ~VehicleCurveClass () {}
+
+
+	///////////////////////////////////////////////////////////////////////////
+	//	Public methods
+	///////////////////////////////////////////////////////////////////////////
+
+	//
+	//	Initialization
+	//	
+	void			Initialize_Arc (float radius);
+	
+	//
+	//	From Curve3DClass
+	//	
+	void			Evaluate (float time, Vector3 *set_val);
+	void			Set_Key (int i,const Vector3 & point);
+	int			Add_Key (const Vector3 & point,float t);
+	void			Remove_Key (int i);
+	void			Clear_Keys (void);
+
+	//
+	//	Vehicle curve specific
+	//
+	float			Get_Current_Sharpness (Vector3 *position) const	{ *position = m_SharpnessPos; return m_Sharpness; }
+	float			Get_Last_Eval_Time (void) const						{ return m_LastTime; }
+
+	//
+	// Save-load support
+	//
+	virtual const PersistFactoryClass &	Get_Factory(void) const;
+	virtual bool								Save(ChunkSaveClass &csave);
+	virtual bool								Load(ChunkLoadClass &cload);
+
+protected:
+	
+	///////////////////////////////////////////////////////////////////////////
+	//	Protected methods
+	///////////////////////////////////////////////////////////////////////////
+	void			Update_Arc_List (void);
+	void			Load_Variables (ChunkLoadClass &cload);
+
+
+	///////////////////////////////////////////////////////////////////////////
+	//	Protected data types
+	///////////////////////////////////////////////////////////////////////////
+	typedef struct _ArcInfoStruct
+	{
+		Vector3	center;
+		Vector3	point_in;
+		Vector3	point_out;
+		float		point_angle;
+		float		radius;
+		float		angle_in_delta;
+		float		angle_out_delta;
+
+		_ArcInfoStruct (void)
+			:	center (0, 0, 0),
+				point_in (0, 0, 0),
+				point_out (0, 0, 0),
+				point_angle (0),
+				radius (0),
+				angle_in_delta (0),
+				angle_out_delta (0)	{ }
+
+		bool operator== (const _ArcInfoStruct &src)	{ return false; }
+		bool operator!= (const _ArcInfoStruct &src)	{ return true; }
+
+	} ArcInfoStruct;
+
+	typedef DynamicVectorClass<ArcInfoStruct>	ARC_LIST;
+
+	///////////////////////////////////////////////////////////////////////////
+	//	Protected member data
+	///////////////////////////////////////////////////////////////////////////
+	bool			m_IsDirty;
+	float			m_Radius;
+	ARC_LIST		m_ArcList;	
+
+	float			m_LastTime;
+	float			m_Sharpness;
+	Vector3		m_SharpnessPos;
+};
+
+///////////////////////////////////////////////////////////////////////////
+//	Set_Key
+///////////////////////////////////////////////////////////////////////////
+inline void
+VehicleCurveClass::Set_Key (int i,const Vector3 & point)
+{
+	m_IsDirty = true;
+	Curve3DClass::Set_Key (i, point);
+	return ;
+}
+
+///////////////////////////////////////////////////////////////////////////
+//	Add_Key
+///////////////////////////////////////////////////////////////////////////
+inline int
+VehicleCurveClass::Add_Key (const Vector3 & point,float t)
+{
+	m_IsDirty = true;
+	return Curve3DClass::Add_Key (point, t);
+}
+
+///////////////////////////////////////////////////////////////////////////
+//	Remove_Key
+///////////////////////////////////////////////////////////////////////////
+inline void
+VehicleCurveClass::Remove_Key (int i)
+{
+	m_IsDirty = true;
+	Curve3DClass::Remove_Key (i);
+	return ;
+}	
+
+///////////////////////////////////////////////////////////////////////////
+//	Clear_Keys
+///////////////////////////////////////////////////////////////////////////
+inline void
+VehicleCurveClass::Clear_Keys (void)
+{
+	m_IsDirty = true;
+	Curve3DClass::Clear_Keys ();
+	return ;
+}	
+
+
+#endif //__VEHICLE_CURVE_H
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/vp.cpp

@@ -0,0 +1,539 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : wwmath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/WWMath/vp.cpp                                $*
+ *                                                                                             *
+ *                    Org Author:: Hector Yee                                                  *
+ *                                                                                             *
+ *                       Author : Kenny Mitchell                                               * 
+ *                                                                                             * 
+ *                     $Modtime:: 06/26/02 4:04p                                             $*
+ *                                                                                             *
+ *                    $Revision:: 12                                                          $*
+ *                                                                                             *
+ * 06/26/02 KM Matrix name change to avoid MAX conflicts                                       *
+ *---------------------------------------------------------------------------------------------*/
+
+#include "vp.h"
+#include "vector2.h"
+#include "vector3.h"
+#include "vector4.h"
+#include "matrix3d.h"
+#include "matrix4.h"
+#include "wwdebug.h"
+#include "cpudetect.h"
+#include <memory.h>
+
+#define SHUFFLE(x, y, z, w)	(((x)&3)<< 6|((y)&3)<<4|((z)&3)<< 2|((w)&3))
+#define	BROADCAST(XMM, INDEX)	__asm	shufps	XMM,XMM,(((INDEX)&3)<< 6|((INDEX)&3)<<4|((INDEX)&3)<< 2|((INDEX)&3))
+
+#define TRANSPOSE(BX, BY, BZ, BW, TV)					\
+		__asm	movaps		TV,BZ						\
+		__asm	unpcklps	BZ,BW						\
+		__asm	unpckhps	TV,BW						\
+		__asm	movaps		BW,BX						\
+		__asm	unpcklps	BX,BY						\
+		__asm	unpckhps	BW,BY						\
+		__asm	movaps		BY,BX						\
+		__asm	shufps		BX,BZ,SHUFFLE(1, 0, 1, 0)	\
+		__asm	shufps		BY,BZ,SHUFFLE(3, 2, 3, 2)	\
+		__asm	movaps		BZ,BW						\
+		__asm	shufps		BZ,TV,SHUFFLE(1, 0, 1, 0)	\
+		__asm	shufps		BW,TV,SHUFFLE(3, 2, 3, 2)
+
+
+void VectorProcessorClass::Prefetch(void* address)
+{
+#if defined (__ICL)    // Detect Intel compiler
+	if (CPUDetectClass::_Has_SSE_Instruction_Set()) {
+		__asm {
+//			mov edx,address
+//			mov eax,[edx]
+//			prefetchT1 address
+		}
+	}
+#endif
+}
+
+static Vector4 lastrow(0.0f,0.0f,0.0f,1.0f);
+void VectorProcessorClass::Transform (Vector3* dst,const Vector3 *src, const Matrix3D& mtx, const int count)
+{
+	if (count<=0) return;
+
+#if defined (__ICL)    // Detect Intel compiler
+	if (CPUDetectClass::_Has_SSE_Instruction_Set()) {
+
+		__asm	{
+			mov		edx,dst
+			mov		eax,src
+			mov		ebx,mtx
+			mov		edi,count
+
+			movups	xmm4,[ebx+0]
+			movups	xmm5,[ebx+16]
+			movups	xmm6,[ebx+32]
+			movups	xmm7,lastrow	//[ebx+48]
+
+			TRANSPOSE(xmm4, xmm5, xmm6, xmm7, xmm0);
+
+			shufps	xmm4,xmm4,SHUFFLE(2,1,0,0)
+			shufps	xmm5,xmm5,SHUFFLE(2,1,0,0)
+			shufps	xmm6,xmm6,SHUFFLE(2,1,0,0)
+			shufps	xmm7,xmm7,SHUFFLE(2,1,0,0)
+
+			mov		esi,edx
+		_lp:
+			test	edi,edi
+			jz		_ulos
+			test	esi,0xf
+			jz		_aligned
+			movss	xmm0,[eax]
+			movss	xmm1,[eax+4]
+			movss	xmm2,[eax+8]
+			BROADCAST(xmm0,0)
+			BROADCAST(xmm1,0)
+			BROADCAST(xmm2,0)
+			mulps	xmm0,xmm4
+			mulps	xmm1,xmm5
+			mulps	xmm2,xmm6
+			addps	xmm0,xmm1
+			addps	xmm0,xmm2
+			addps	xmm0,xmm7
+			movss	[edx],xmm0
+			movhps	[edx+4],xmm0
+			add		eax,12
+			add		edx,12
+			add		esi,12
+			dec		edi
+			jmp		_lp
+		_aligned:
+
+			mov		esi,1
+		
+			mov		ecx,edi
+			and		edi,3
+			and		ecx,~3
+			jz		_lp
+			
+			lea		ecx,[ecx+ecx*2]
+			shl		ecx,2
+			add		eax,ecx
+			add		edx,ecx
+			neg		ecx
+
+			cmp		dword ptr [ebx+12],0
+			jne		_xlatelp
+			cmp		dword ptr [ebx+28],0
+			jne		_xlatelp
+			cmp		dword ptr [ebx+44],0
+			jne		_xlatelp
+			jmp		_noxlatelp
+
+			align	16
+
+			_noxlatelp:
+				prefetchnta	[eax+ecx+48]
+				prefetchnta	[eax+ecx+48+32]
+
+				movss	xmm0,[eax+ecx]
+				BROADCAST(xmm0,0)
+				movss	xmm1,[eax+ecx+4]
+				BROADCAST(xmm1,0)
+				movss	xmm2,[eax+ecx+8]
+				BROADCAST(xmm2,0)
+				mulps	xmm0,xmm4
+				mulps	xmm1,xmm5
+				mulps	xmm2,xmm6
+				addps	xmm0,xmm1
+				addps	xmm0,xmm2
+
+				movss	xmm1,[eax+ecx+12]
+				BROADCAST(xmm1,0)
+				movss	xmm2,[eax+ecx+16]
+				BROADCAST(xmm2,0)
+				movss	xmm3,[eax+ecx+20]
+				BROADCAST(xmm3,0)
+				mulps	xmm1,xmm4
+				mulps	xmm2,xmm5
+				mulps	xmm3,xmm6
+				addps	xmm1,xmm2
+				addps	xmm3,xmm1
+
+				movss	xmm0,xmm3
+				shufps	xmm0,xmm0,SHUFFLE(0,3,2,1)
+
+				movaps	[edx+ecx],xmm0
+
+				prefetcht0	[edx+ecx+48]
+				prefetcht0	[edx+ecx+48+32]
+
+				movss	xmm0,[eax+ecx+24]
+				BROADCAST(xmm0,0)
+				movss	xmm1,[eax+ecx+24+4]
+				BROADCAST(xmm1,0)
+				movss	xmm2,[eax+ecx+24+8]
+				BROADCAST(xmm2,0)
+				mulps	xmm0,xmm4
+				mulps	xmm1,xmm5
+				mulps	xmm2,xmm6
+				addps	xmm0,xmm1
+				addps	xmm0,xmm2
+
+				shufps	xmm3,xmm0,SHUFFLE(2,1,3,2)
+				movaps	[edx+ecx+16],xmm3
+
+				movss	xmm1,[eax+ecx+24+12]
+				BROADCAST(xmm1,0)
+				movss	xmm2,[eax+ecx+24+16]
+				BROADCAST(xmm2,0)
+				movss	xmm3,[eax+ecx+24+20]
+				BROADCAST(xmm3,0)
+				mulps	xmm1,xmm4
+				mulps	xmm2,xmm5
+				mulps	xmm3,xmm6
+				addps	xmm1,xmm2
+				addps	xmm1,xmm3
+
+				shufps	xmm0,xmm0,SHUFFLE(2,1,0,3)
+				movss	xmm1,xmm0
+				movaps	[edx+ecx+32],xmm1
+
+				add		ecx,48
+				js		_noxlatelp
+
+			jmp	_lp
+
+			align	16
+
+			_xlatelp:
+				prefetchnta	[eax+ecx+48]
+				prefetchnta	[eax+ecx+48+32]
+
+				movss	xmm0,[eax+ecx]
+				BROADCAST(xmm0,0)
+				movss	xmm1,[eax+ecx+4]
+				BROADCAST(xmm1,0)
+				movss	xmm2,[eax+ecx+8]
+				BROADCAST(xmm2,0)
+				mulps	xmm0,xmm4
+				mulps	xmm1,xmm5
+				mulps	xmm2,xmm6
+				addps	xmm0,xmm1
+				addps	xmm0,xmm2
+				addps	xmm0,xmm7
+
+				movss	xmm1,[eax+ecx+12]
+				BROADCAST(xmm1,0)
+				movss	xmm2,[eax+ecx+16]
+				BROADCAST(xmm2,0)
+				movss	xmm3,[eax+ecx+20]
+				BROADCAST(xmm3,0)
+				mulps	xmm1,xmm4
+				mulps	xmm2,xmm5
+				mulps	xmm3,xmm6
+				addps	xmm1,xmm2
+				addps	xmm3,xmm1
+				addps	xmm3,xmm7
+
+				movss	xmm0,xmm3
+				shufps	xmm0,xmm0,SHUFFLE(0,3,2,1)
+				movaps	[edx+ecx],xmm0
+
+				prefetcht0	[edx+ecx+48]
+				prefetcht0	[edx+ecx+48+32]
+
+				movss	xmm0,[eax+ecx+24]
+				BROADCAST(xmm0,0)
+				movss	xmm1,[eax+ecx+24+4]
+				BROADCAST(xmm1,0)
+				movss	xmm2,[eax+ecx+24+8]
+				BROADCAST(xmm2,0)
+				mulps	xmm0,xmm4
+				mulps	xmm1,xmm5
+				mulps	xmm2,xmm6
+				addps	xmm0,xmm1
+				addps	xmm0,xmm2
+				addps	xmm0,xmm7
+
+				shufps	xmm3,xmm0,SHUFFLE(2,1,3,2)
+				movaps	[edx+ecx+16],xmm3
+
+				movss	xmm1,[eax+ecx+24+12]
+				BROADCAST(xmm1,0)
+				movss	xmm2,[eax+ecx+24+16]
+				BROADCAST(xmm2,0)
+				movss	xmm3,[eax+ecx+24+20]
+				BROADCAST(xmm3,0)
+				mulps	xmm1,xmm4
+				mulps	xmm2,xmm5
+				mulps	xmm3,xmm6
+				addps	xmm1,xmm2
+				addps	xmm1,xmm3
+				addps	xmm1,xmm7
+
+				shufps	xmm0,xmm0,SHUFFLE(2,1,0,3)
+				movss	xmm1,xmm0
+
+				movaps	[edx+ecx+32],xmm1
+				
+				add		ecx,48
+				js		_xlatelp
+
+			jmp	_lp
+		_ulos:
+		}
+
+	}
+	else
+#endif
+	{
+		mtx.mulVector3Array(src, dst, count);
+	}
+}
+
+void VectorProcessorClass::Transform(Vector4* dst,const Vector3 *src, const Matrix4x4& matrix, const int count)
+{
+	if (count<=0) return;
+
+	int i;
+
+	for (i=0; i<count; i++)
+	{
+		dst[i]=matrix*src[i];
+	}
+}
+
+void VectorProcessorClass::Copy(Vector2 *dst, const Vector2 *src, int count)
+{
+	if (count<=0) return;
+	memcpy(dst,src,sizeof(Vector2)*count);
+}
+
+void VectorProcessorClass::Copy(unsigned *dst, const unsigned *src, int count)
+{
+	if (count<=0) return;
+	memcpy(dst,src,sizeof(unsigned)*count);
+}
+
+void VectorProcessorClass::Copy(Vector3 *dst, const Vector3 *src, int count)
+{
+	if (count<=0) return;
+	memcpy(dst,src,sizeof(Vector3)*count);
+}
+
+void VectorProcessorClass::Copy(Vector4 *dst, const Vector4 *src, int count)
+{
+	if (count<=0) return;
+	memcpy(dst,src,sizeof(Vector4)*count);
+}
+
+void VectorProcessorClass::Copy(Vector4 *dst,const Vector3 *src, const float * srca, const int count)
+{
+	if (count<=0) return;
+	int i;
+
+	for (i=0; i<count; i++)
+	{
+		dst[i].X=src[i].X;
+		dst[i].Y=src[i].Y;
+		dst[i].Z=src[i].Z;
+		dst[i].W=srca[i];
+	}
+}
+
+void VectorProcessorClass::Copy(Vector4 *dst,const Vector3 *src, const float srca, const int count)
+{
+	if (count<=0) return;
+	int i;
+
+	for (i=0; i<count; i++)
+	{
+		dst[i].X=src[i].X;
+		dst[i].Y=src[i].Y;
+		dst[i].Z=src[i].Z;
+		dst[i].W=srca;
+	}
+}
+
+void VectorProcessorClass::Copy(Vector4 *dst,const Vector3 &src, const float * srca, const int count)
+{
+	if (count<=0) return;
+	int i;
+
+	for (i=0; i<count; i++)
+	{
+		dst[i].X=src.X;
+		dst[i].Y=src.Y;
+		dst[i].Z=src.Z;
+		dst[i].W=srca[i];
+	}
+}
+
+void VectorProcessorClass::CopyIndexed (unsigned *dst,const unsigned *src, const unsigned int *index, int count)
+{
+	if (count<=0) return;
+	int i;
+
+	for (i=0; i<count; i++)
+	{
+		dst[i]=src[index[i]];
+	}
+}
+
+void VectorProcessorClass::CopyIndexed (Vector2 *dst,const Vector2 *src, const unsigned int *index, int count)
+{
+	if (count<=0) return;
+	int i;
+
+	for (i=0; i<count; i++)
+	{
+		dst[i]=src[index[i]];
+	}
+}
+
+void VectorProcessorClass::CopyIndexed (Vector3 *dst,const Vector3 *src, const unsigned int *index, int count)
+{
+	if (count<=0) return;
+	int i;
+
+	for (i=0; i<count; i++)
+	{
+		dst[i]=src[index[i]];
+	}
+}
+
+void VectorProcessorClass::CopyIndexed (Vector4 *dst,const Vector4 *src, const unsigned int *index, int count)
+{
+	if (count<=0) return;
+	int i;
+
+	for (i=0; i<count; i++)
+	{
+		dst[i]=src[index[i]];
+	}
+}
+
+void VectorProcessorClass::CopyIndexed(unsigned char* dst, const unsigned char* src, const unsigned int *index, int count)
+{
+	if (count<=0) return;
+	int i;
+
+	for (i=0; i<count; i++)
+	{
+		dst[i]=src[index[i]];
+	}
+}
+
+void VectorProcessorClass::CopyIndexed(float* dst, float* src, const unsigned int *index, int count)
+{
+	if (count<=0) return;
+	int i;
+
+	for (i=0; i<count; i++)
+	{
+		dst[i]=src[index[i]];
+	}
+}
+
+void VectorProcessorClass::Clamp(Vector4 *dst,const Vector4 *src, const float min, const float max, const int count)
+{
+	if (count<=0) return;
+	int i;
+
+	for (i=0; i<count; i++)
+	{
+		dst[i].X=(src[i].X<min)?min:src[i].X;
+		dst[i].X=(src[i].X>max)?max:src[i].X;
+
+		dst[i].Y=(src[i].Y<min)?min:src[i].Y;
+		dst[i].Y=(src[i].Y>max)?max:src[i].Y;
+
+		dst[i].Z=(src[i].Z<min)?min:src[i].Z;
+		dst[i].Z=(src[i].Z>max)?max:src[i].Z;
+
+		dst[i].W=(src[i].W<min)?min:src[i].W;
+		dst[i].W=(src[i].W>max)?max:src[i].W;
+	}
+}
+
+void VectorProcessorClass::Clear(Vector3*dst, const int count)
+{
+	if (count<=0) return;
+	memset(dst,0,sizeof(Vector3)*count);
+}
+
+
+void VectorProcessorClass::Normalize(Vector3 *dst, const int count)
+{
+	if (count<=0) return;
+	int i;
+
+	for (i=0; i<count; i++)
+		dst[i].Normalize();
+}
+
+void VectorProcessorClass::MinMax(Vector3 *src, Vector3 &min, Vector3 &max, const int count)
+{
+	if (count<=0) return;
+	min=*src;
+	max=*src;
+
+	int i;
+
+	for (i=1; i<count; i++)
+	{
+		min.X=MIN(min.X,src[i].X);
+		min.Y=MIN(min.Y,src[i].Y);
+		min.Z=MIN(min.Z,src[i].Z);
+
+		max.X=MAX(max.X,src[i].X);
+		max.Y=MAX(max.Y,src[i].Y);
+		max.Z=MAX(max.Z,src[i].Z);
+	}
+}
+
+void VectorProcessorClass::MulAdd(float * dest,float multiplier,float add,int count)
+{
+	for (int i=0; i<count; i++) {
+		dest[i] = dest[i] * multiplier + add;
+	}
+}
+
+void VectorProcessorClass::DotProduct(float *dst, const Vector3 &a, const Vector3 *b,const int count)
+{
+	for (int i=0; i<count; i++)
+		dst[i]=Vector3::Dot_Product(a,b[i]);
+}
+
+void VectorProcessorClass::ClampMin(float *dst, float *src, const float min, const int count)
+{
+	for (int i=0; i<count; i++)
+		dst[i]=(src[i]>min?src[i]:min);
+}
+
+void VectorProcessorClass::Power(float *dst, float *src, const float pow, const int count)
+{
+	for (int i=0; i<count; i++)
+		dst[i]=powf(src[i],pow);
+}

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/vp.h

@@ -0,0 +1,93 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : wwmath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/WWMath/vp.h                                  $*
+ *                                                                                             *
+ *                     Org Author:: Hector Yee                                                  *
+ *                                                                                             *
+ *                       Author : Kenny Mitchell                                               * 
+ *                                                                                             * 
+ *                     $Modtime:: 06/26/02 4:04p                                             $*
+ *                                                                                             *
+ *                    $Revision:: 13                                                          $*
+ *                                                                                             *
+ * 06/26/02 KM Matrix name change to avoid MAX conflicts                                       *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * Transform - transforms a vector array given  Matrix3D                                       *
+ * Copy - Copies data from source to destination                                                *
+ * CopyIndexed-copies dst[]=src[index[]]                                                        *
+ * Clear - clears array to zero                                                                 *
+ * Normalize - normalize the array                                                              *
+ * MinMax - Finds the min and max of the array                                                  *
+ *                                                                                              *
+ *----------------------------------------------------------------------------------------------*
+ */
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef VECTORPROCESSOR_H
+#define VECTORPROCESSOR_H
+
+class Vector2;
+class Vector3;
+class Vector4;
+class Matrix3D;
+class Matrix4x4;
+
+class VectorProcessorClass
+{
+public:
+	static void Transform(Vector3* dst,const Vector3 *src, const Matrix3D& matrix, const int count);
+	static void Transform(Vector4* dst,const Vector3 *src, const Matrix4x4& matrix, const int count);
+	static void Copy(unsigned *dst,const unsigned *src, const int count);
+	static void Copy(Vector2 *dst,const Vector2 *src, const int count);
+	static void Copy(Vector3 *dst,const Vector3 *src, const int count);
+	static void Copy(Vector4 *dst,const Vector4 *src, const int count);
+	static void Copy(Vector4 *dst,const Vector3 *src, const float * srca, const int count);
+	static void Copy(Vector4 *dst,const Vector3 *src, const float srca, const int count);
+	static void Copy(Vector4 *dst,const Vector3 &src, const float * srca, const int count);
+	static void CopyIndexed(unsigned *dst,const unsigned *src, const unsigned int *index, const int count);
+	static void CopyIndexed(Vector2 *dst,const Vector2 *src, const unsigned int *index, const int count);
+	static void CopyIndexed(Vector3 *dst,const Vector3 *src, const unsigned int *index, const int count);
+	static void CopyIndexed(Vector4 *dst,const Vector4 *src, const unsigned int *index, const int count);
+	static void CopyIndexed(unsigned char* dst, const unsigned char* src, const unsigned int *index, int count);
+	static void CopyIndexed(float* dst, float* src, const unsigned int *index, int count);
+	static void Clamp(Vector4 *dst,const Vector4 *src, const float min, const float max, const int count);
+	static void Clear (Vector3 *dst, const int count);
+	static void Normalize(Vector3 *dst, const int count);
+	static void MinMax(Vector3 *src, Vector3 &min, Vector3 &max, const int count);
+
+	static void MulAdd(float * dest,float multiplier,float add,int count);
+
+	static void Prefetch(void* address);
+
+	static void DotProduct(float *dst, const Vector3 &a, const Vector3 *b,const int count);
+	static void ClampMin(float *dst, float *src, const float min, const int count);
+	static void Power(float *dst, float *src, const float pow, const int count);
+};
+
+#endif // VECTORPROCESSOR_H

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/wwmath.cpp

@@ -0,0 +1,95 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/wwmath.cpp                            $*
+ *                                                                                             *
+ *                       Author:: Eric_c                                                       *
+ *                                                                                             *
+ *                     $Modtime:: 5/10/01 10:52p                                              $*
+ *                                                                                             *
+ *                    $Revision:: 11                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "wwmath.h"
+#include "wwhack.h"
+#include "lookuptable.h"
+#include <stdlib.h>
+#include "wwdebug.h"
+#include "wwprofile.h"
+
+// TODO: convert to use loouptablemanager...
+float _FastAcosTable[ARC_TABLE_SIZE];
+float _FastAsinTable[ARC_TABLE_SIZE];
+float _FastSinTable[SIN_TABLE_SIZE];
+float _FastInvSinTable[SIN_TABLE_SIZE];
+
+void		WWMath::Init(void)
+{
+	LookupTableMgrClass::Init();
+
+	for (int a=0;a<ARC_TABLE_SIZE;++a) {
+		float cv=float(a-ARC_TABLE_SIZE/2)*(1.0f/(ARC_TABLE_SIZE/2));
+		_FastAcosTable[a]=acos(cv);
+		_FastAsinTable[a]=asin(cv);
+	}
+
+	for (a=0;a<SIN_TABLE_SIZE;++a) {
+		float cv= (float)a * 2.0f * WWMATH_PI / SIN_TABLE_SIZE; //float(a-SIN_TABLE_SIZE/2)*(1.0f/(SIN_TABLE_SIZE/2));
+		_FastSinTable[a]=sin(cv);
+		
+		if (a>0) {
+			_FastInvSinTable[a]=1.0f/_FastSinTable[a];
+		} else {
+			_FastInvSinTable[a]=WWMATH_FLOAT_MAX;
+		}
+	}
+}
+
+void		WWMath::Shutdown(void)
+{
+	LookupTableMgrClass::Shutdown();
+}
+
+float		WWMath::Random_Float(void) 
+{ 
+	return ((float)(rand() & 0xFFF)) / (float)(0xFFF); 
+}
+
+
+/*
+** Force link some modules from this library.
+*/
+void Do_Force_Links(void)
+{
+	FORCE_LINK(curve);
+	FORCE_LINK(hermitespline);
+	FORCE_LINK(catmullromspline);
+	FORCE_LINK(cardinalspline);
+	FORCE_LINK(tcbspline);
+}
+

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/wwmath.dsp

@@ -0,0 +1,484 @@
+# Microsoft Developer Studio Project File - Name="wwmath" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
+# TARGTYPE "Win32 (x86) Static Library" 0x0104
+
+CFG=wwmath - Win32 DebugW3D
+!MESSAGE This is not a valid makefile. To build this project using NMAKE,
+!MESSAGE use the Export Makefile command and run
+!MESSAGE 
+!MESSAGE NMAKE /f "wwmath.mak".
+!MESSAGE 
+!MESSAGE You can specify a configuration when running NMAKE
+!MESSAGE by defining the macro CFG on the command line. For example:
+!MESSAGE 
+!MESSAGE NMAKE /f "wwmath.mak" CFG="wwmath - Win32 DebugW3D"
+!MESSAGE 
+!MESSAGE Possible choices for configuration are:
+!MESSAGE 
+!MESSAGE "wwmath - Win32 Debug" (based on "Win32 (x86) Static Library")
+!MESSAGE "wwmath - Win32 Release" (based on "Win32 (x86) Static Library")
+!MESSAGE "wwmath - Win32 Profile" (based on "Win32 (x86) Static Library")
+!MESSAGE "wwmath - Win32 Internal" (based on "Win32 (x86) Static Library")
+!MESSAGE "wwmath - Win32 DebugW3D" (based on "Win32 (x86) Static Library")
+!MESSAGE 
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_ProjName ""$/Commando/Code/wwmath", UEFAAAAA"
+# PROP Scc_LocalPath "."
+CPP=cl.exe
+RSC=rc.exe
+
+!IF  "$(CFG)" == "wwmath - Win32 Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "wwmath_3"
+# PROP BASE Intermediate_Dir "wwmath_3"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "Debug"
+# PROP Intermediate_Dir "Debug"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /GX /Z7 /Od /I "..\Library" /D "G_CODE_BASE" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /FR /YX /FD /c
+# ADD CPP /nologo /G6 /MDd /W3 /WX /Gi /GX /Zi /O2 /Ob2 /I "..\wwlib" /I "..\wwdebug" /I "..\wwsaveload" /D "G_CODE_BASE" /D "DIRECTX" /D "_DEBUG" /D WINVER=0x400 /D "_WINDOWS" /D "WIN32_LEAN_AND_MEAN" /D "WIN32" /YX /FD /c
+# SUBTRACT CPP /Fr
+# ADD BASE RSC /l 0x409
+# ADD RSC /l 0x409
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo /out:"..\Libs\wwmathd.lib"
+# ADD LIB32 /nologo /out:"..\..\..\Lib\WWMathDebug.lib"
+
+!ELSEIF  "$(CFG)" == "wwmath - Win32 Release"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "wwmath_4"
+# PROP BASE Intermediate_Dir "wwmath_4"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Release"
+# PROP Intermediate_Dir "Release"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /GX /O2 /I "..\Library" /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /YX /FD /c
+# ADD CPP /nologo /G6 /MD /W3 /WX /Gi /GX /O2 /Ob2 /I "..\wwlib" /I "..\wwdebug" /I "..\wwsaveload" /D WINVER=0x400 /D "_WINDOWS" /D "WIN32_LEAN_AND_MEAN" /D "NDEBUG" /D "WIN32" /D "IG_DEBUG_STACKTRACE" /YX /FD /c
+# SUBTRACT CPP /Fr
+# ADD BASE RSC /l 0x409
+# ADD RSC /l 0x409
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo /out:"..\Libs\wwmath.lib"
+# ADD LIB32 /nologo /out:"..\..\..\Lib\WWMath.lib"
+
+!ELSEIF  "$(CFG)" == "wwmath - Win32 Profile"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "wwmath__"
+# PROP BASE Intermediate_Dir "wwmath__"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Profile"
+# PROP Intermediate_Dir "Profile"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /MT /W3 /GX /O2 /I "..\Library" /I "..\wwdebug" /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /FR /YX /FD /c
+# ADD CPP /nologo /MD /W3 /WX /GX /Zi /O2 /Op /Ob2 /I "..\wwlib" /I "..\wwdebug" /I "..\wwsaveload" /D "NDEBUG" /D "WWDEBUG" /D WINVER=0x400 /D "_WINDOWS" /D "WIN32_LEAN_AND_MEAN" /D "WIN32" /D "_PROFILE" /YX /FD /Gh /c
+# ADD BASE RSC /l 0x409
+# ADD RSC /l 0x409
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo /out:"..\Libs\release\wwmath.lib"
+# ADD LIB32 /nologo /out:"..\..\..\Lib\WWMathProfile.lib"
+
+!ELSEIF  "$(CFG)" == "wwmath - Win32 Internal"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "Internal"
+# PROP BASE Intermediate_Dir "Internal"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Internal"
+# PROP Intermediate_Dir "Internal"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /MD /W4 /WX /Gi /GX /O2 /Ob2 /I "..\wwlib" /I "..\wwdebug" /I "..\wwsaveload" /D "NDEBUG" /D WINVER=0x400 /D "_WINDOWS" /D "WIN32_LEAN_AND_MEAN" /D "WIN32" /YX /FD /c
+# SUBTRACT BASE CPP /Fr
+# ADD CPP /nologo /G6 /MD /W3 /WX /Gi /GX /Zi /O2 /I "..\wwlib" /I "..\wwdebug" /I "..\wwsaveload" /D "NDEBUG" /D WINVER=0x400 /D "_WINDOWS" /D "WIN32_LEAN_AND_MEAN" /D "WIN32" /D "_INTERNAL" /YX /FD /c
+# SUBTRACT CPP /Fr
+# ADD BASE RSC /l 0x409
+# ADD RSC /l 0x409
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo /out:"..\..\..\Lib\WWMath.lib"
+# ADD LIB32 /nologo /out:"..\..\..\Lib\WWMathInternal.lib"
+
+!ELSEIF  "$(CFG)" == "wwmath - Win32 DebugW3D"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "DebugW3D"
+# PROP BASE Intermediate_Dir "DebugW3D"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "DebugW3D"
+# PROP Intermediate_Dir "DebugW3D"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /MDd /W3 /WX /Gm /Gi /GR /GX /ZI /Od /I "..\wwlib" /I "..\wwdebug" /I "..\wwsaveload" /D "G_CODE_BASE" /D "DIRECTX" /D "_DEBUG" /D "WWDEBUG" /D WINVER=0x400 /D "_WINDOWS" /D "WIN32_LEAN_AND_MEAN" /D "WIN32" /Fr /YX /FD /c
+# ADD CPP /nologo /G6 /MDd /W3 /WX /Gm /Gi /GX /ZI /Od /I "..\wwlib" /I "..\wwdebug" /I "..\wwsaveload" /D "G_CODE_BASE" /D "DIRECTX" /D "_DEBUG" /D "WWDEBUG" /D WINVER=0x400 /D "_WINDOWS" /D "WIN32_LEAN_AND_MEAN" /D "WIN32" /YX /FD /c
+# SUBTRACT CPP /Fr
+# ADD BASE RSC /l 0x409
+# ADD RSC /l 0x409
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LIB32=link.exe -lib
+# ADD BASE LIB32 /nologo /out:"..\..\..\Lib\WWMathDebug.lib"
+# ADD LIB32 /nologo /out:"..\..\..\Lib\WWMathDebugW3D.lib"
+
+!ENDIF 
+
+# Begin Target
+
+# Name "wwmath - Win32 Debug"
+# Name "wwmath - Win32 Release"
+# Name "wwmath - Win32 Profile"
+# Name "wwmath - Win32 Internal"
+# Name "wwmath - Win32 DebugW3D"
+# Begin Group "Source"
+
+# PROP Default_Filter "c;cpp"
+# Begin Source File
+
+SOURCE=.\aabox.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\aabtreecull.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\cardinalspline.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\catmullromspline.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmath.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathaabox.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathaabtri.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathfrustum.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathline.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathobbobb.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathobbox.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathobbtri.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathplane.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathsphere.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\cullsys.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\curve.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\euler.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\frustum.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\gridcull.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\hermitespline.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\lineseg.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\lookuptable.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\matrix3.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\matrix3d.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\matrix4.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\obbox.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\ode.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\pot.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\quat.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\tcbspline.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\tri.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\v3_rnd.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\vehiclecurve.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\vp.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=.\wwmath.cpp
+# End Source File
+# End Group
+# Begin Group "Headers"
+
+# PROP Default_Filter "h"
+# Begin Source File
+
+SOURCE=.\aabox.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\aabtreecull.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\aaplane.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\cardinalspline.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\castres.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\catmullromspline.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmath.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathaabox.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathfrustum.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathinlines.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathline.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\colmathplane.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\cullsys.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\culltype.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\curve.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\euler.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\frustum.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\gridcull.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\hermitespline.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\lineseg.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\lookuptable.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\matrix3.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\matrix3d.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\matrix4.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\obbox.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\ode.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\plane.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\pot.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\quat.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\rect.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\sphere.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\tcbspline.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\tri.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\v3_rnd.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\vector2.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\vector2i.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\vector3.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\Vector3i.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\vector4.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\vehiclecurve.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\vp.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\wwmath.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\wwmathids.h
+# End Source File
+# End Group
+# End Target
+# End Project

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/wwmath.h

@@ -0,0 +1,658 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/wwmath.h                              $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 8/26/01 2:22p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 64                                                          $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#ifndef WWMATH_H
+#define WWMATH_H
+
+#include "always.h"
+#include <math.h>
+#include <float.h>
+#include <assert.h>
+#include <float.h>
+
+/*
+** Some global constants.
+*/
+#define WWMATH_EPSILON		0.0001f
+#define WWMATH_EPSILON2		WWMATH_EPSILON * WWMATH_EPSILON
+#define WWMATH_PI				3.141592654f
+#define WWMATH_FLOAT_MAX	(FLT_MAX)
+#define WWMATH_FLOAT_MIN	(FLT_MIN)
+#define WWMATH_SQRT2			1.414213562f
+#define WWMATH_SQRT3			1.732050808f
+#define WWMATH_OOSQRT2		0.707106781f
+#define WWMATH_OOSQRT3		0.577350269f
+
+// (DRM 05/07/01) Temporarily eliminated _fastcall
+// on non-Microsoft compatible compilers. Jani
+// should be replacing this soon.
+#ifndef _MSC_VER
+#define __fastcall
+#endif // _MSC_VER
+
+/* 
+**	Macros to convert between degrees and radians
+*/
+#ifndef RAD_TO_DEG
+#define RAD_TO_DEG(x)	(((double)x)*180.0/WWMATH_PI)
+#endif
+
+#ifndef DEG_TO_RAD
+#define DEG_TO_RAD(x)	(((double)x)*WWMATH_PI/180.0)
+#endif
+
+#ifndef RAD_TO_DEGF
+#define RAD_TO_DEGF(x)	(((float)x)*180.0f/WWMATH_PI)
+#endif
+
+#ifndef DEG_TO_RADF
+#define DEG_TO_RADF(x)	(((float)x)*WWMATH_PI/180.0f)
+#endif
+
+
+const int ARC_TABLE_SIZE=1024;
+const int SIN_TABLE_SIZE=1024;
+extern float _FastAcosTable[ARC_TABLE_SIZE];
+extern float _FastAsinTable[ARC_TABLE_SIZE];
+extern float _FastSinTable[SIN_TABLE_SIZE];
+extern float _FastInvSinTable[SIN_TABLE_SIZE];
+
+/*
+** Some simple math functions which work on the built-in types.  
+** Include the various other header files in the WWMATH library 
+** in order to get matrices, quaternions, etc.
+*/
+class WWMath
+{
+public:
+
+// Initialization and Shutdown.  Other math sub-systems which require initialization and
+// shutdown processing will be handled in these functions
+static void			Init(void);
+static void			Shutdown(void);
+
+// These are meant to be a collection of small math utility functions to be optimized at some point.
+static WWINLINE float Fabs(float val)
+{
+	int value=*(int*)&val;
+	value&=0x7fffffff;
+	return *(float*)&value;
+}
+
+static WWINLINE int Float_To_Int_Chop(const float& f);
+static WWINLINE int Float_To_Int_Floor(const float& f);
+
+#if defined(_MSC_VER) && defined(_M_IX86)
+static WWINLINE float Cos(float val);
+static WWINLINE float Sin(float val);
+static WWINLINE float Sqrt(float val);
+static float __fastcall Inv_Sqrt(float a);	// Some 30% faster inverse square root than regular C++ compiled, from Intel's math library
+static WWINLINE long	 Float_To_Long(float f);
+#else
+static float Cos(float val);
+static float Sin(float val);
+static float Sqrt(float val);
+static float Inv_Sqrt(float a);
+static long	Float_To_Long(float f);
+#endif
+
+
+static WWINLINE float Fast_Sin(float val);
+static WWINLINE float Fast_Inv_Sin(float val);
+static WWINLINE float Fast_Cos(float val);
+static WWINLINE float Fast_Inv_Cos(float val);
+
+static WWINLINE float Fast_Acos(float val);
+static WWINLINE float Acos(float val);
+static WWINLINE float Fast_Asin(float val);
+static WWINLINE float Asin(float val);
+
+
+static float		Atan(float x) { return static_cast<float>(atan(x)); }
+static float		Atan2(float y,float x) { return static_cast<float>(atan2(y,x)); }
+static float		Sign(float val);
+static float		Ceil(float val) { return ceilf(val); }
+static float		Floor(float val) { return floorf(val); }
+static bool			Fast_Is_Float_Positive(const float & val);
+static bool			Is_Power_Of_2(const unsigned int val);
+
+static float		Random_Float(void);
+static float		Random_Float(float min,float max);
+static float		Clamp(float val, float min = 0.0f, float max = 1.0f);
+static double		Clamp(double val, double min = 0.0f, double max = 1.0f);
+static int			Clamp_Int(int val, int min_val, int max_val);
+static float		Wrap(float val, float min = 0.0f, float max = 1.0f);
+static double		Wrap(double val, double min = 0.0f, double max = 1.0f);
+static float		Min(float a, float b);
+static float		Max(float a, float b);
+
+static int			Float_As_Int(const float f) { return *((int*)&f); }
+
+static float		Lerp(float a, float b, float lerp );
+static double		Lerp(double a, double b, float lerp );
+
+static long			Float_To_Long(double f);
+
+static unsigned char Unit_Float_To_Byte(float f) { return (unsigned char)(f*255.0f); }
+static float			Byte_To_Unit_Float(unsigned char byte) { return ((float)byte) / 255.0f; }
+
+static bool			Is_Valid_Float(float x);
+static bool			Is_Valid_Double(double x);
+
+};
+
+WWINLINE float WWMath::Sign(float val) 
+{ 
+	if (val > 0.0f) { 
+		return +1.0f; 
+	} 
+	if (val < 0.0f) { 
+		return -1.0f; 
+	} 
+	return 0.0f; 
+}
+
+WWINLINE bool WWMath::Fast_Is_Float_Positive(const float & val)
+{
+	return !((*(int *)(&val)) & 0x80000000);
+}
+
+WWINLINE bool WWMath::Is_Power_Of_2(const unsigned int val)
+{
+	return !((val)&val-1);
+}
+
+WWINLINE float WWMath::Random_Float(float min,float max) 
+{ 
+	return Random_Float() * (max-min) + min; 
+}
+
+WWINLINE float WWMath::Clamp(float val, float min /*= 0.0f*/, float max /*= 1.0f*/) 
+{
+	if(val < min) return min;
+	if(val > max) return max;
+	return val;
+}
+
+WWINLINE double WWMath::Clamp(double val, double min /*= 0.0f*/, double max /*= 1.0f*/) 
+{
+	if(val < min) return min;
+	if(val > max) return max;
+	return val;
+}
+
+WWINLINE int WWMath::Clamp_Int(int val, int min_val, int max_val) 
+{
+	if(val < min_val) return min_val;
+	if(val > max_val) return max_val;
+	return val;
+}
+
+WWINLINE float WWMath::Wrap(float val, float min /*= 0.0f*/, float max /*= 1.0f*/) 
+{
+	// Implemented as an if rather than a while, to long loops
+	if ( val >= max )	val -= (max-min);
+	if ( val < min )	val += (max-min);
+
+	if ( val < min ) {
+		val = min;
+	}
+	if ( val > max ) {
+		val = max;
+	}
+	return val;
+}
+
+WWINLINE double WWMath::Wrap(double val, double min /*= 0.0f*/, double max /*= 1.0f*/) 
+{
+	// Implemented as an if rather than a while, to long loops
+	if ( val >= max )	val -= (max-min);
+	if ( val < min )	val += (max-min);
+	if ( val < min ) {
+		val = min;
+	}
+	if ( val > max ) {
+		val = max;
+	}
+	return val;
+}
+
+WWINLINE float WWMath::Min(float a, float b)
+{
+	if (a<b) return a;
+	return b;
+}
+
+WWINLINE float WWMath::Max(float a, float b)
+{
+	if (a>b) return a;
+	return b;
+}
+
+WWINLINE float WWMath::Lerp(float a, float b, float lerp )
+{
+	return (a + (b - a)*lerp);
+}
+
+WWINLINE double WWMath::Lerp(double a, double b, float lerp )
+{
+	return (a + (b - a)*lerp);
+}
+
+
+WWINLINE bool WWMath::Is_Valid_Float(float x)
+{
+	unsigned long * plong = (unsigned long *)(&x);
+	unsigned long exponent = ((*plong) & 0x7F800000) >> (32-9);
+
+	// if exponent is 0xFF, this is a NAN 
+	if (exponent == 0xFF) {
+		return false;
+	}
+	return true;
+}
+
+WWINLINE bool WWMath::Is_Valid_Double(double x)
+{
+	unsigned long * plong = (unsigned long *)(&x) + 1;
+	unsigned long exponent = ((*plong) & 0x7FF00000) >> (32-12);
+
+	// if exponent is 0x7FF, this is a NAN 
+	if (exponent == 0x7FF) {
+		return false;
+	}
+	return true;
+}
+
+// ----------------------------------------------------------------------------
+// Float to long
+// ----------------------------------------------------------------------------
+
+#if defined(_MSC_VER) && defined(_M_IX86)
+WWINLINE long WWMath::Float_To_Long(float f)
+{
+	long i;
+
+	__asm {
+		fld [f]
+		fistp [i]
+	}
+
+	return i;
+}
+#else 
+WWINLINE long WWMath::Float_To_Long(float f)
+{
+	return (long) f;
+}
+#endif
+
+WWINLINE long WWMath::Float_To_Long(double f)	
+{
+#if defined(_MSC_VER) && defined(_M_IX86)
+	long retval;
+	__asm fld	qword ptr [f]
+	__asm fistp dword ptr [retval]
+	return retval;
+#else 
+	return (long) f;
+#endif
+}
+
+// ----------------------------------------------------------------------------
+// Cos
+// ----------------------------------------------------------------------------
+
+#if defined(_MSC_VER) && defined(_M_IX86)
+WWINLINE float WWMath::Cos(float val)
+{
+	float retval;
+	__asm {
+		fld [val]
+		fcos
+		fstp [retval]
+	}
+	return retval;
+}
+#else
+WWINLINE float WWMath::Cos(float val)
+{
+	return cosf(val);
+}
+#endif
+
+// ----------------------------------------------------------------------------
+// Sin
+// ----------------------------------------------------------------------------
+
+#if defined(_MSC_VER) && defined(_M_IX86)
+WWINLINE float WWMath::Sin(float val)
+{
+	float retval;
+	__asm {
+		fld [val]
+		fsin
+		fstp [retval]
+	}
+	return retval;
+}
+#else
+WWINLINE float WWMath::Sin(float val)
+{
+	return sinf(val);
+}
+#endif
+
+// ----------------------------------------------------------------------------
+// Fast, table based sin
+// ----------------------------------------------------------------------------
+
+WWINLINE float WWMath::Fast_Sin(float val)
+{
+	val*=float(SIN_TABLE_SIZE) / (2.0f * WWMATH_PI);
+
+	int idx0=Float_To_Int_Floor(val);
+	int idx1=idx0+1;
+	float frac=val-(float)idx0;
+
+	idx0 = ((unsigned)idx0) & (SIN_TABLE_SIZE-1);
+	idx1 = ((unsigned)idx1) & (SIN_TABLE_SIZE-1);
+	
+	return (1.0f - frac) * _FastSinTable[idx0] + frac * _FastSinTable[idx1];
+}
+
+// ----------------------------------------------------------------------------
+// Fast, table based 1.0f/sin
+// ----------------------------------------------------------------------------
+
+WWINLINE float WWMath::Fast_Inv_Sin(float val)
+{
+#if 0 // TODO: more testing, not reliable! 
+	float index = val * float(SIN_TABLE_SIZE) / (2.0f * WWMATH_PI);
+
+	int idx0=Float_To_Int_Floor(index);
+	int idx1=idx0+1;
+	float frac=val-(float)idx0;
+
+	idx0 = ((unsigned)idx0) & (SIN_TABLE_SIZE-1);
+	idx1 = ((unsigned)idx1) & (SIN_TABLE_SIZE-1);
+	
+	// The table becomes inaccurate near 0 and 2pi so fall back to doing a divide.
+	const int BUFFER = 16;
+	if ((idx0 <= BUFFER) || (idx0 >= SIN_TABLE_SIZE-BUFFER-1)) {
+		return 1.0f / WWMath::Fast_Sin(val);
+	} else {
+		return (1.0f - frac) * _FastInvSinTable[idx0] + frac * _FastInvSinTable[idx1];
+	}
+#else
+	return 1.0f / WWMath::Fast_Sin(val);
+#endif
+}
+
+
+// ----------------------------------------------------------------------------
+// Fast, table based cos
+// ----------------------------------------------------------------------------
+
+WWINLINE float WWMath::Fast_Cos(float val)
+{
+	val+=(WWMATH_PI * 0.5f);
+	val*=float(SIN_TABLE_SIZE) / (2.0f * WWMATH_PI);
+
+	int idx0=Float_To_Int_Floor(val);
+	int idx1=idx0+1;
+	float frac=val-(float)idx0;
+
+	idx0 = ((unsigned)idx0) & (SIN_TABLE_SIZE-1);
+	idx1 = ((unsigned)idx1) & (SIN_TABLE_SIZE-1);
+	
+	return (1.0f - frac) * _FastSinTable[idx0] + frac * _FastSinTable[idx1];
+}
+
+// ----------------------------------------------------------------------------
+// Fast, table based 1.0f/cos
+// ----------------------------------------------------------------------------
+
+WWINLINE float WWMath::Fast_Inv_Cos(float val)
+{
+#if 0 // TODO: more testing, not reliable!
+	float index = val + (WWMATH_PI * 0.5f);
+	index *= float(SIN_TABLE_SIZE) / (2.0f * WWMATH_PI);
+
+	int idx0=Float_To_Int_Chop(index);
+	int idx1=idx0+1;
+	float frac=val-(float)idx0;
+
+	idx0 = ((unsigned)idx0) & (SIN_TABLE_SIZE-1);
+	idx1 = ((unsigned)idx1) & (SIN_TABLE_SIZE-1);
+	
+	// The table becomes inaccurate near 0 and 2pi so fall back to doing a divide.
+	if ((idx0 <= 2) || (idx0 >= SIN_TABLE_SIZE-3)) {
+		return 1.0f / WWMath::Fast_Cos(val);
+	} else {
+		return (1.0f - frac) * _FastInvSinTable[idx0] + frac * _FastInvSinTable[idx1];
+	}
+#else
+	return 1.0f / WWMath::Fast_Cos(val);
+#endif
+}
+
+// ----------------------------------------------------------------------------
+// Fast, table based arc cos
+// ----------------------------------------------------------------------------
+
+WWINLINE float WWMath::Fast_Acos(float val)
+{
+	// Near -1 and +1, the table becomes too inaccurate
+	if (WWMath::Fabs(val) > 0.975f) {
+		return WWMath::Acos(val);
+	}
+
+	val*=float(ARC_TABLE_SIZE/2);
+
+	int idx0=Float_To_Int_Floor(val);
+	int idx1=idx0+1;
+	float frac=val-(float)idx0;
+
+	idx0+=ARC_TABLE_SIZE/2;
+	idx1+=ARC_TABLE_SIZE/2;
+
+	// we dont even get close to the edge of the table...
+	assert((idx0 >= 0) && (idx0 < ARC_TABLE_SIZE));
+	assert((idx1 >= 0) && (idx1 < ARC_TABLE_SIZE));
+
+	// compute and return the interpolated value
+	return (1.0f - frac) * _FastAcosTable[idx0] + frac * _FastAcosTable[idx1];
+}
+
+// ----------------------------------------------------------------------------
+// Arc cos
+// ----------------------------------------------------------------------------
+
+WWINLINE float WWMath::Acos(float val)
+{
+	return (float)acos(val);
+}
+
+// ----------------------------------------------------------------------------
+// Fast, table based arc sin
+// ----------------------------------------------------------------------------
+
+WWINLINE float WWMath::Fast_Asin(float val)
+{
+	// Near -1 and +1, the table becomes too inaccurate
+	if (WWMath::Fabs(val) > 0.975f) {
+		return WWMath::Asin(val);
+	}
+	
+	val*=float(ARC_TABLE_SIZE/2);
+
+	int idx0=Float_To_Int_Floor(val); 
+	int idx1=idx0+1;
+	float frac=val-(float)idx0;
+
+	idx0+=ARC_TABLE_SIZE/2;
+	idx1+=ARC_TABLE_SIZE/2;
+
+	// we dont even get close to the edge of the table...
+	assert((idx0 >= 0) && (idx0 < ARC_TABLE_SIZE));
+	assert((idx1 >= 0) && (idx1 < ARC_TABLE_SIZE));
+
+	// compute and return the interpolated value
+	return (1.0f - frac) * _FastAsinTable[idx0] + frac * _FastAsinTable[idx1];
+}
+
+// ----------------------------------------------------------------------------
+// Arc sin
+// ----------------------------------------------------------------------------
+
+WWINLINE float WWMath::Asin(float val)
+{
+	return (float)asin(val);
+}
+
+// ----------------------------------------------------------------------------
+// Sqrt
+// ----------------------------------------------------------------------------
+
+#if defined(_MSC_VER) && defined(_M_IX86)
+WWINLINE float WWMath::Sqrt(float val)
+{
+	float retval;
+	__asm {
+		fld [val]
+		fsqrt
+		fstp [retval]
+	}
+	return retval;
+}
+#else
+WWINLINE float WWMath::Sqrt(float val)
+{
+	return (float)sqrt(val);
+}
+#endif
+
+WWINLINE int WWMath::Float_To_Int_Chop(const float& f)
+{
+    int a	= *reinterpret_cast<const int*>(&f);				// take bit pattern of float into a register
+    int sign	= (a>>31);												// sign = 0xFFFFFFFF if original value is negative, 0 if positive
+    int mantissa	= (a&((1<<23)-1))|(1<<23);						// extract mantissa and add the hidden bit
+    int exponent	= ((a&0x7fffffff)>>23)-127;					// extract the exponent
+    int r	= ((unsigned int)(mantissa)<<8)>>(31-exponent);	// ((1<<exponent)*mantissa)>>24 -- (we know that mantissa > (1<<24))
+    return ((r ^ (sign)) - sign ) &~ (exponent>>31);			// add original sign. If exponent was negative, make return value 0.
+}
+
+WWINLINE int WWMath::Float_To_Int_Floor (const float& f)
+{
+	int a			= *reinterpret_cast<const int*>(&f);			// take bit pattern of float into a register
+	int sign		= (a>>31);												// sign = 0xFFFFFFFF if original value is negative, 0 if positive
+	a&=0x7fffffff;															// we don't need the sign any more
+
+	int exponent	= (a>>23)-127;										// extract the exponent
+	int expsign	= ~(exponent>>31);									// 0xFFFFFFFF if exponent is positive, 0 otherwise
+	int imask		= ( (1<<(31-(exponent))))-1;					// mask for true integer values
+	int mantissa	= (a&((1<<23)-1));								// extract mantissa (without the hidden bit)
+	int r			= ((unsigned int)(mantissa|(1<<23))<<8)>>(31-exponent);	// ((1<<exponent)*(mantissa|hidden bit))>>24 -- (we know that mantissa > (1<<24))
+
+	r = ((r & expsign) ^ (sign)) + ((!((mantissa<<8)&imask)&(expsign^((a-1)>>31)))&sign);	// if (fabs(value)<1.0) value = 0; copy sign; if (value < 0 && value==(int)(value)) value++;
+	return r;
+}
+
+// ----------------------------------------------------------------------------
+// Inverse square root
+// ----------------------------------------------------------------------------
+
+#if defined(_MSC_VER) && defined(_M_IX86)
+WWINLINE __declspec(naked) float __fastcall WWMath::Inv_Sqrt(float a)
+{
+	__asm {
+		mov		eax, 0be6eb508h
+		mov		DWORD PTR [esp-12],03fc00000h ;  1.5 on the stack
+		sub		eax, DWORD PTR [esp+4]; a
+		sub		DWORD PTR [esp+4], 800000h ; a/2 a=Y0
+		shr		eax, 1     ; firs approx in eax=R0
+		mov		DWORD PTR [esp-8], eax
+
+		fld		DWORD PTR [esp-8] ;r
+		fmul	st, st            ;r*r
+		fld		DWORD PTR [esp-8] ;r
+		fxch	st(1)
+		fmul	DWORD PTR [esp+4];a ;r*r*y0
+		fld		DWORD PTR [esp-12];load 1.5
+		fld		st(0)
+		fsub	st,st(2)			   ;r1 = 1.5 - y1
+		;x1 = st(3)
+		;y1 = st(2)
+		;1.5 = st(1)
+		;r1 = st(0)
+
+		fld		st(1)
+		fxch	st(1)
+		fmul	st(3),st			; y2=y1*r1*...
+		fmul	st(3),st			; y2=y1*r1*r1
+		fmulp	st(4),st            ; x2=x1*r1
+		fsub	st,st(2)               ; r2=1.5-y2
+		;x2=st(3)
+		;y2=st(2)
+		;1.5=st(1)
+		;r2 = st(0)
+
+		fmul	st(2),st			;y3=y2*r2*...
+		fmul	st(3),st			;x3=x2*r2
+		fmulp	st(2),st			;y3=y2*r2*r2
+		fxch	st(1)
+		fsubp	st(1),st			;r3= 1.5 - y3
+		;x3 = st(1)
+		;r3 = st(0)
+		fmulp	st(1), st
+		ret 4
+	}
+}
+#else
+WWINLINE float WWMath::Inv_Sqrt(float val)
+{
+	return 1.0f / (float)sqrt(val);
+}
+#endif
+
+
+#endif

GeneralsMD/Code/Libraries/Source/WWVegas/WWMath/wwmathids.h

@@ -0,0 +1,66 @@
+/*
+**	Command & Conquer Generals Zero Hour(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : WWMath                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwmath/wwmathids.h                           $*
+ *                                                                                             *
+ *              Original Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                      $Author:: Jani_p                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 5/04/01 8:42p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 3                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#ifndef WWMATHIDS_H
+#define WWMATHIDS_H
+
+#include "saveloadids.h"
+
+/*
+** Persist Factory ID's for WWMATH
+*/
+enum 
+{
+	WWMATH_CHUNKID_LINEARCURVE1D	= CHUNKID_WWMATH_BEGIN,
+	WWMATH_CHUNKID_HERMITESPLINE1D,
+	WWMATH_CHUNKID_CATMULLROMSPLINE1D,
+	WWMATH_CHUNKID_CARDINALSPLINE1D,
+	WWMATH_CHUNKID_TCBSPLINE1D,
+
+	WWMATH_CHUNKID_LINEARCURVE3D	= CHUNKID_WWMATH_BEGIN + 0x100,
+	WWMATH_CHUNKID_HERMITESPLINE3D,
+	WWMATH_CHUNKID_CATMULLROMSPLINE3D,
+	WWMATH_CHUNKID_CARDINALSPLINE3D,
+	WWMATH_CHUNKID_TCBSPLINE3D,
+	WWMATH_CHUNKID_VEHICLECURVE
+};
+
+
+
+#endif //WWMATHIDS_H
+