/*
**	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/umbrasupport.h                        $*
 *                                                                                             *
 *              Original Author:: Greg Hjelstrom                                               *
 *                                                                                             *
 *                      $Author:: Greg_h                                                      $*
 *                                                                                             *
 *                     $Modtime:: 11/29/00 6:32p                                              $*
 *                                                                                             *
 *                    $Revision:: 2                                                           $*
 *                                                                                             *
 *---------------------------------------------------------------------------------------------*
 * Functions:                                                                                  *
 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

#ifndef UMBRASUPPORT_H
#define UMBRASUPPORT_H

#define UMBRASUPPORT		0

#include "always.h"
#include "physlist.h"

#if (UMBRASUPPORT)

class MeshClass;
class CameraClass;
class Matrix3D;
class AABoxClass;

namespace Umbra
{
	class Cell;
	class Camera;
	class Model;
}


/**
** UmbraSupport
** This is a collection of support functions for Umbra, Hybrid's occlusion
** culling library.
*/
class UmbraSupport
{
public:

	static void						Init(void);
	static void						Shutdown(void);

	static void						Enable_Umbra(bool onoff);
	static bool						Is_Umbra_Enabled(void);
	static float					Get_Umbra_Memory_Consumption(void);

	static Umbra::Cell *			Peek_Umbra_Cell(void);
	static Umbra::Camera *		Peek_Umbra_Camera(void);
	static Umbra::Model *		Peek_Dummy_Sphere(void);
	
	static Umbra::Model *		Create_Box_Model(const AABoxClass & objbox);
	static Umbra::Model *		Create_Mesh_Model(MeshClass & mesh);

	static void						Install_Umbra_Object(PhysClass * obj);
	static void						Remove_Umbra_Object(PhysClass * obj);

	static void						Collect_Visible_Objects(const CameraClass & camera,RefPhysListClass & visible_obj_list);
	static void						Update_Umbra_Object(PhysClass * obj);

protected:

	bool								UmbraEnabled;

};


#endif //UMBRASUPPORT

#endif //UMBRASUPPORT_H