Initial commit of Command & Conquer Renegade source code.

Code/WWMath/lineseg.h

@@ -0,0 +1,93 @@
+/*
+**	Command & Conquer Renegade(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