Initial commit of Command & Conquer Renegade source code.

Code/wwphys/dynamicshadowmanager.h

@@ -0,0 +1,129 @@
+/*
+**	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 : WWPhys                                                       *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwphys/dynamicshadowmanager.h                $*
+ *                                                                                             *
+ *              Original Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                      $Author:: Greg_h                                                      $*
+ *                                                                                             *
+ *                     $Modtime:: 12/05/01 6:28p                                              $*
+ *                                                                                             *
+ *                    $Revision:: 3                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#ifndef DYNAMICSHADOWMANAGER_H
+#define DYNAMICSHADOWMANAGER_H
+
+#include "always.h"
+#include "vector3.h"
+
+
+class ChunkLoadClass;
+class ChunkSaveClass;
+class PhysClass;
+class DynTexProjectClass;
+class DynamicShadowManagerDefClass;
+
+
+/**
+** DynamicShadowManagerClass
+** This is another class designed to be embedded in a physics object.  It's responsibility
+** is to update and manage the dynamic shadow projection(s) for its parent.  
+*/
+class DynamicShadowManagerClass
+{
+public:
+
+	DynamicShadowManagerClass(PhysClass & parent);
+	~DynamicShadowManagerClass(void);
+	
+	/*
+	** Call Update_Shadow in your Post_Timestep_Process function
+	*/
+	void								Update_Shadow(void);
+
+	/*
+	** You can explicitly set the nearz and farz planes for the shadow or 
+	** if they are set to -1.0f, the code will handle them automatically.
+	** Typically game objects like characters and vehicles should use the
+	** automatic setting while cinematics may need a manual setting.  For
+	** example, a flying airplane may need to cast a long shadow for the
+	** shadow to hit the ground.
+	*/
+	void								Set_Shadow_Planes(float znear = -1.0f,float zfar = -1.0f);
+	void								Get_Shadow_Planes(float * set_znear,float * set_zfar);
+
+	/*
+	** Vehicles now have enourmous muzzle flashes that cause the shadow
+	** bounding box to be much larger than it should be.  This causes low
+	** shadow resolution as well as per-polygon culling visual errors
+	*/
+	void								Enable_Force_Use_Blob_Box(bool onoff) { ForceUseBlobBox = onoff; }
+	bool								Is_Force_Use_Blob_Box_Enabled(void) { return ForceUseBlobBox; }
+	void								Set_Blob_Box_Projection_Scale(const Vector3 & scl) { BlobBoxProjectionScale = scl; }
+	const Vector3 &				Get_Blob_Box_Projection_Scale(void) { return BlobBoxProjectionScale; }
+
+	/*
+	** Accessor to indicate whether we are actually casting a shadow
+	*/
+	bool								Is_Casting_Shadow(void) { return (Shadow != NULL); }
+
+protected:
+
+	/*
+	** Internal shadow support.
+	*/
+	void								Allocate_Shadow(void);
+	void								Release_Shadow(void);
+
+	PhysClass &						Parent;
+	DynTexProjectClass *			Shadow;
+
+	float								ShadowNearZ;
+	float								ShadowFarZ;
+
+	bool								ForceUseBlobBox;
+	Vector3							BlobBoxProjectionScale;
+};
+
+
+inline void DynamicShadowManagerClass::Set_Shadow_Planes(float znear,float zfar)
+{
+	ShadowNearZ = znear;
+	ShadowFarZ = zfar;
+}
+
+inline void DynamicShadowManagerClass::Get_Shadow_Planes(float * set_znear,float * set_zfar)
+{
+	*set_znear = ShadowNearZ;
+	*set_zfar = ShadowFarZ;
+}
+
+
+#endif // DYNAMICSHADOWMANAGER_H
+