//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------

#ifndef _BTWORLD_H_
#define _BTWORLD_H_

#ifndef _T3D_PHYSICS_PHYSICSWORLD_H_
#include "T3D/physics/physicsWorld.h"
#endif
#ifndef _T3D_PHYSICS_BTDEBUGDRAW_H_
#include "T3D/physics/bullet/btDebugDraw.h"
#endif
#ifndef _BULLET_H_
#include "T3D/physics/bullet/bt.h"
#endif
#ifndef _TVECTOR_H_
#include "core/util/tVector.h"
#endif

class ProcessList;
class PhysicsBody;


class BtWorld : public PhysicsWorld
{
protected:

   BtDebugDraw mDebugDraw;

   F32 mEditorTimeScale;

   btDynamicsWorld *mDynamicsWorld;
   btBroadphaseInterface *mBroadphase;
   btCollisionDispatcher *mDispatcher;
   btConstraintSolver *mSolver;
   btDefaultCollisionConfiguration *mCollisionConfiguration;

   bool mErrorReport;

   bool	mIsEnabled;

   bool mIsSimulating;

   U32 mTickCount;

   ProcessList *mProcessList;

   void _destroy();

public:

   BtWorld();
   virtual ~BtWorld();

   // PhysicWorld
   virtual bool initWorld( bool isServer, ProcessList *processList );
   virtual void destroyWorld();
   virtual bool castRay( const Point3F &startPnt, const Point3F &endPnt, RayInfo *ri, const Point3F &impulse );
   virtual PhysicsBody* castRay( const Point3F &start, const Point3F &end, U32 bodyTypes );
   virtual void explosion( const Point3F &pos, F32 radius, F32 forceMagnitude );   
   virtual void onDebugDraw( const SceneRenderState *state );
   virtual void reset();
   virtual bool isEnabled() const { return mIsEnabled; }

   btDynamicsWorld* getDynamicsWorld() const { return mDynamicsWorld; }

   void tickPhysics( U32 elapsedMs );
   void getPhysicsResults();
   bool isWritable() const { return !mIsSimulating; }

   void setEnabled( bool enabled );
   bool getEnabled() const { return mIsEnabled; }

   void setEditorTimeScale( F32 timeScale ) { mEditorTimeScale = timeScale; }
   const F32 getEditorTimeScale() const { return mEditorTimeScale; }

};

#endif // _BTWORLD_H_