/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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/>.
 *
 */

/*
 * Copyright (C) 2006-2010 - Frictional Games
 *
 * This file is part of HPL1 Engine.
 */

#ifndef HPL_PARTICLE_EMITTER_3D_USER_DATA_H
#define HPL_PARTICLE_EMITTER_3D_USER_DATA_H

#include "hpl1/engine/graphics/ParticleEmitter3D.h"
#include "hpl1/engine/graphics/Renderable.h"
#include "hpl1/engine/physics/PhysicsWorld.h"
#include "hpl1/engine/scene/Entity3D.h"

class TiXmlElement;

namespace hpl {

enum ePEStartPosType {
	ePEStartPosType_Box,
	ePEStartPosType_Sphere,
	ePEStartPosType_LastEnum,
};

enum ePEDeathType {
	ePEDeathType_Age,
	ePEDeathType_Color,
	ePEDeathType_LastEnum,
};

enum ePEGravityType {
	ePEGravityType_None,   // No gravity added
	ePEGravityType_Vector, // Vector is used.
	ePEGravityType_Center, // Y axis used. heading equals center.
	ePEGravityType_LastEnum,
};

enum ePESubDivType {
	ePESubDivType_Random,
	ePESubDivType_Animation,
	ePESubDivType_LastEnum,
};

enum ePEPartSpinType {
	ePEPartSpinType_Constant,
	ePEPartSpinType_Movement,
	ePEPartSpinType_LastEnum,
};

//------------------------------------

//------------------------------------

class cParticleEmitterData3D_UserData : public iParticleEmitterData, public iPhysicsRayCallback {
	friend class cParticleEmitter3D_UserData;

public:
	cParticleEmitterData3D_UserData(const tString &asName, cResources *apResources, cGraphics *apGraphics);

	iParticleEmitter *Create(tString asName, cVector3f avSize);

	void LoadFromElement(TiXmlElement *apElement);

	bool CheckCollision(const cVector3f &avStart, const cVector3f &avEnd,
						iPhysicsWorld *apPhysicsWorld,
						cVector3f *apNormalVec,
						cVector3f *apPosVec);

private:
	bool OnIntersect(iPhysicsBody *pBody, cPhysicsRayParams *apParams);
	float mfShortestDist;
	bool mbIntersected;
	cVector3f *mpIntersectNormal;
	cVector3f *mpIntersectPos;

	///////// GENERAL /////////////

	// NEW
	ePEType mPEType;
	// ---

	int mlMaxParticleNum;

	bool mbRespawn;

	float mfParticlesPerSecond;
	float mfStartTimeOffset;

	float mfMinPauseLength;
	float mfMaxPauseLength;

	float mfMinPauseInterval;
	float mfMaxPauseInterval;

	cVector3f mvPosOffset;
	cVector3f mvAngleOffset;

	float mfFrameStep;
	float mfMaxFrameTime;

	///////// MATERIAL //////////

	cVector2l mvSubDiv;
	ePESubDivType mSubDivType;

	///////// START POS //////////
	ePEStartPosType mStartPosType;

	cVector3f mvMinStartPos;
	cVector3f mvMaxStartPos;

	cVector2f mvMinStartAngles;
	cVector2f mvMaxStartAngles;

	float mfMinStartRadius;
	float mfMaxStartRadius;

	/////////// MOVEMENT ////////
	ePEStartPosType mStartVelType;

	cVector3f mvMinStartVel;
	cVector3f mvMaxStartVel;

	cVector2f mvMinStartVelAngles;
	cVector2f mvMaxStartVelAngles;

	float mfMinStartVelSpeed;
	float mfMaxStartVelSpeed;

	float mfMinSpeedMultiply;
	float mfMaxSpeedMultiply;

	cVector3f mvMinStartAcc;
	cVector3f mvMaxStartAcc;

	float mfMinVelMaximum;
	float mfMaxVelMaximum;

	bool mbUsesDirection;
	ePEGravityType mGravityType;

	cVector3f mvGravityAcc;

	eParticleEmitter3DCoordSystem mCoordSystem;

	// NEW

	bool mbUsePartSpin;
	ePEPartSpinType mPartSpinType;
	float mfMinSpinRange;
	float mfMaxSpinRange;

	bool mbUseRevolution;
	cVector3f mvMinRevVel;
	cVector3f mvMaxRevVel;

	//		iVertexBuffer *mVBMeshData;
	//		float *mpfMeshVtxData;

	// ---

	/////////// LIFESPAN ////////
	float mfMinLifeSpan;
	float mfMaxLifeSpan;

	ePEDeathType mDeathType;

	tString msDeathPS;

	/////////// RENDERING ////////
	eParticleEmitter3DType mDrawType;

	cVector2f mvMinStartSize;
	cVector2f mvMaxStartSize;

	float mfStartRelSize;
	float mfMiddleRelSize;
	float mfMiddleRelSizeTime;
	float mfMiddleRelSizeLength;
	float mfEndRelSize;

	bool mbMultiplyRGBWithAlpha;

	/////////// COLOR  ////////

	cColor mMinStartColor;
	cColor mMaxStartColor;

	cColor mStartRelColor;
	cColor mMiddleRelColor;
	float mfMiddleRelColorTime;
	float mfMiddleRelColorLength;
	cColor mEndRelColor;

	/////////// COLLISION  ////////
	bool mbCollides;

	float mfMinBounceAmount;
	float mfMaxBounceAmount;

	int mlMinCollisionMax;
	int mlMaxCollisionMax;

	int mlCollisionUpdateRate;

	// NEW
	/////// BEAM SPECIFIC ///////

	bool mbUseBeamNoise;

	int mlLowFreqPoints;
	Common::Array<unsigned int> mvLFIndices;
	cVector3f mvMinLowFreqNoise;
	cVector3f mvMaxLowFreqNoise;

	int mlHighFreqPoints;
	cVector3f mvMinHighFreqNoise;
	cVector3f mvMaxHighFreqNoise;

	Common::Array<tBeamNoisePoint> mvBeamNoisePoints;

	// ---
};

//----------------------------------------------------------

class cParticleEmitter3D_UserData : public iParticleEmitter3D {
public:
	cParticleEmitter3D_UserData(tString asName, tMaterialVec *avMaterials,
								cVector3f avSize, cGraphics *apGraphics, cResources *apResources,
								cParticleEmitterData3D_UserData *apData);
	~cParticleEmitter3D_UserData(void);

	void Kill();

	bool IsDying();

private:
	void UpdateMotion(float afTimeStep);
	void SetParticleDefaults(cParticle *apParticle);

	cParticleEmitterData3D_UserData *mpData;

	float mfTime;
	float mfCreateCount;

	float mfCollideCount;

	float mfPauseCount;
	float mfPauseWaitCount;
	bool mbPaused;

	bool mbRespawn;
};

} // namespace hpl

#endif // HPL_PARTICLE_EMITTER_3D_USER_DATA_H