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#ifndef PXD_PARTICLESYSTEM_H
#define PXD_PARTICLESYSTEM_H

#include "foundation/PxSimpleTypes.h"
#include "DyParticleSystemCore.h"
#include "PxvGeometry.h"

#define MAX_SPARSEGRID_DIM 1024
#define MIN_SPARSEGRID_ID -512
#define MAX_SPARSEGRID_ID 511

namespace physx
{
	namespace Sc
	{
		class ParticleSystemSim;
	}


	namespace Dy
	{
		typedef size_t ParticleSystemHandle;

		class ParticleSystemCore;

		struct ParticleSystemFlag
		{
			enum Enum
			{
				eUPDATE_PARAMS						= 1 << 1,
				eUPDATE_MATERIAL					= 1 << 2,
				eUPDATE_PHASE						= 1 << 3,
				eUPDATE_ACTIVE_PARTICLECOUNT		= 1 << 4,
				eENABLE_GPU_DATA_SYNC				= 1 << 5,
			};
		};


		class ParticleSystem
		{
			PX_NOCOPY(ParticleSystem)
		public:

			ParticleSystem(Dy::ParticleSystemCore& core) : mCore(core), mShapeCore(NULL),
				mElementId(0xffffffff), mGpuRemapId(0xffffffff)
			{
				mFlag = 0;
			}

			~ParticleSystem() {}

			PX_FORCE_INLINE void setShapeCore(PxsShapeCore* shapeCore)
			{
				mShapeCore = shapeCore;
			}

			PX_FORCE_INLINE void setGpuRemapId(const PxU32 remapId)
			{
				mGpuRemapId = remapId;
				PxParticleSystemGeometryLL& geom = mShapeCore->mGeometry.get<PxParticleSystemGeometryLL>();
				geom.materialsLL.gpuRemapId = remapId;
			}

			PX_FORCE_INLINE PxU32				getGpuRemapId()				const	{ return mGpuRemapId; }

			PX_FORCE_INLINE void				setElementId(const PxU32 elementId)	{ mElementId = elementId; }
			PX_FORCE_INLINE PxU32				getElementId()						{ return mElementId; }

			PX_FORCE_INLINE ParticleSystemCore&	getCore()					const	{ return mCore; }
			PX_FORCE_INLINE PxsShapeCore&		getShapeCore()						{ return *mShapeCore; }

			PX_FORCE_INLINE PxU16				getIterationCounts()				{ return mCore.solverIterationCounts; }

			PxU32			mFlag;

		private:
			ParticleSystemCore&			mCore;
			PxsShapeCore*				mShapeCore;
			PxU32						mElementId; //this is used for the bound array
			PxU32						mGpuRemapId;
			
		};

		struct ParticleSystemSolverDesc
		{
			ParticleSystem*		particleSystem;
		};

		PX_FORCE_INLINE ParticleSystem* getParticleSystem(ParticleSystemHandle handle)
		{
			return reinterpret_cast<ParticleSystem*>(handle);
		}

	}
}

#endif