/**
 * $Id$
 *
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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 2
 * 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, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */
#ifndef _DUMMYPHYSICSENVIRONMENT
#define _DUMMYPHYSICSENVIRONMENT

#include "PHY_IPhysicsEnvironment.h"

/**
*	DummyPhysicsEnvironment  is an empty placeholder
*   Alternatives are ODE,Sumo and Dynamo PhysicsEnvironments
*	Use DummyPhysicsEnvironment as a base to integrate your own physics engine
*	Physics Environment takes care of stepping the simulation and is a container for physics entities (rigidbodies,constraints, materials etc.)
*
*	A derived class may be able to 'construct' entities by loading and/or converting
*/
class DummyPhysicsEnvironment  : public PHY_IPhysicsEnvironment
{

public:
	DummyPhysicsEnvironment ();
	virtual		~DummyPhysicsEnvironment ();
	virtual void		beginFrame();
	virtual void		endFrame();
// Perform an integration step of duration 'timeStep'.
	virtual	bool		proceedDeltaTime(double  curTime,float timeStep,float interval);
	virtual	void		setFixedTimeStep(bool useFixedTimeStep,float fixedTimeStep);
	virtual	float		getFixedTimeStep();

	virtual	void		setGravity(float x,float y,float z);

	virtual int			createConstraint(class PHY_IPhysicsController* ctrl,class PHY_IPhysicsController* ctrl2,PHY_ConstraintType type,
			float pivotX,float pivotY,float pivotZ,
			float axisX,float axisY,float axisZ,
			float axis1X=0,float axis1Y=0,float axis1Z=0,
			float axis2X=0,float axis2Y=0,float axis2Z=0,int flag=0
			);

	virtual void		removeConstraint(int	constraintid);

		//complex constraint for vehicles
	virtual PHY_IVehicle*	getVehicleConstraint(int constraintId)
	{
		return 0;
	}

	virtual PHY_IPhysicsController* rayTest(PHY_IRayCastFilterCallback &filterCallback, float fromX,float fromY,float fromZ, float toX,float toY,float toZ);
	virtual bool cullingTest(PHY_CullingCallback callback, void* userData, PHY__Vector4* planes, int nplanes, int occlusionRes) { return false; }


	//gamelogic callbacks
		virtual void addSensor(PHY_IPhysicsController* ctrl) {}
		virtual void removeSensor(PHY_IPhysicsController* ctrl) {}
		virtual void addTouchCallback(int response_class, PHY_ResponseCallback callback, void *user)
		{
		}
		virtual bool requestCollisionCallback(PHY_IPhysicsController* ctrl) { return false; }
		virtual bool removeCollisionCallback(PHY_IPhysicsController* ctrl) { return false;}
		virtual PHY_IPhysicsController*	CreateSphereController(float radius,const PHY__Vector3& position) {return 0;}
		virtual PHY_IPhysicsController* CreateConeController(float coneradius,float coneheight) { return 0;}

		virtual void	setConstraintParam(int constraintId,int param,float value,float value1)
		{
		}

		virtual float	getConstraintParam(int constraintId,int param)
		{
			return 0.f;
		}

		
#ifdef WITH_CXX_GUARDEDALLOC
public:
	void *operator new( unsigned int num_bytes) { return MEM_mallocN(num_bytes, "GE:DummyPhysicsEnvironment"); }
	void operator delete( void *mem ) { MEM_freeN(mem); }
#endif
};

#endif //_DUMMYPHYSICSENVIRONMENT