genesis-3d_engine/Engine/addons/particles/affectors/particleTextureAnimatorAffector.h

/****************************************************************************
Copyright (c) 2011-2013,WebJet Business Division,CYOU

http://www.genesis-3d.com.cn

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#ifndef __PARTICLE_TEXTUREANIMATOR_AFFECTOR_H__
#define __PARTICLE_TEXTUREANIMATOR_AFFECTOR_H__
#include "particles/particle_fwd_decl.h"
#include "particles/particleaffector.h"

namespace Particles
{
	class TextureAnimatorAffector: public ParticleAffector
	{
		__DeclareSubClass( TextureAnimatorAffector, ParticleAffector);


	public:
		enum TextureAnimationType
		{
			TAT_WHOLE_SHEET,
			TAT_SINGLE_ROW,
		};		

		static const Math::scalar DEFAULT_TA_TIME_STEP;
		static const ushort DEFAULT_TA_TEXCOORDS_START;
		static const ushort DEFAULT_TA_TEXCOORDS_END;
		static const TextureAnimationType DEFAULT_TA_ANIMATION_TYPE;
		static const bool DEFAULT_TA_START_RANDOM;

	public:

		TextureAnimatorAffector();
		virtual ~TextureAnimatorAffector(){};

		virtual void _onActivate(void);

		TextureAnimationType GetTextureAnimationType(void) const;

		void SetTextureAnimationType(TextureAnimationType textureAnimationType);

		ushort GetTileX(void) const;
		void SetTileX(ushort);

		ushort GetTileY(void) const;
		void SetTileY(ushort);
		
		ushort GetStart(void) const;
		void SetStart(ushort);

		ushort GetEnd(void) const;
		void SetEnd(ushort);

		bool IsSingleRowRandom(void) const;

		void SetSingleRowRandom(bool startRandom);

		void _initParticleForEmission(Particle* particle);

		virtual void _affect(Particle* particle);

		void SetRowIndex(int);
		int GetRowIndex(void) const;

		void SetCycles(int);
		int GetCycles(void) const;

		virtual Math::MinMaxCurve* getMinMaxCurve(ParticleCurveType pct)
		{
			switch(pct)
			{
			case 	Affetor_TexAnimation:
				return &mMinMaxTexAnimation;
			default:
				return NULL;					
			}
		}
		virtual void _switchParticleType(bool _isMobile);
		void SetShaderParam();
		void InitShaderParam();
		
		void SetShaderMask(const GPtr<ShaderProgramCompiler::ShaderMarcro>& pMarcro);
	protected:
		Math::scalar mAnimationTimeStep;
		Math::scalar mAnimationTimeStepCount;

		TextureAnimationType mTextureAnimationType;
		bool mIsSingleRowRandom;
		int			mRowIndex;
		ushort	mTileX;
		ushort	mTileY;
		ushort  mTexStart;
		ushort	mTexEnd;
		int			mCycles;

		Math::MinMaxCurve			mMinMaxTexAnimation;
		Math::float4		mShaderParam;

	public:
		// @ISerialization::GetVersion. when change storage, must add SerializeSVersion count
		virtual Serialization::SVersion GetVersion() const;

		// @ISerialization::Load 
		virtual void Load( Serialization::SVersion ver, Serialization::SerializeReader* pReader, const Serialization::SerializationArgs* args );

		// @ISerialization::Save
		virtual void Save( Serialization::SerializeWriter* pWriter ) const;

		// copy 
		virtual void CopyFrom( const ParticleAffectorPtr& affector );
	};
	//--------------------------------------------------------------------------------
	inline ushort TextureAnimatorAffector::GetTileX(void) const
	{
		return mTileX;
	}
	inline ushort TextureAnimatorAffector::GetTileY(void) const
	{
		return mTileY;
	}

	//-------------------------------------------------------------------------
	inline TextureAnimatorAffector::TextureAnimationType TextureAnimatorAffector::GetTextureAnimationType(void) const
	{
		return mTextureAnimationType;
	}

	//-------------------------------------------------------------------------
	inline bool TextureAnimatorAffector::IsSingleRowRandom(void) const
	{
		return mIsSingleRowRandom;
	}

	//-------------------------------------------------------------------------
	inline void TextureAnimatorAffector::SetSingleRowRandom(bool bRandom)
	{
		mIsSingleRowRandom = bRandom;
	}
	//--------------------------------------------------------------------------------
	inline void TextureAnimatorAffector::SetRowIndex(int ncount)
	{
		mRowIndex = ncount;
		if(mRowIndex < 0)
			mRowIndex = 0;
	}
	inline int TextureAnimatorAffector::GetRowIndex(void) const
	{
		return mRowIndex;
	}
	//--------------------------------------------------------------------------------
	inline void TextureAnimatorAffector::SetCycles(int ncount)
	{
		mCycles = ncount;
	}
	inline int TextureAnimatorAffector::GetCycles(void) const
	{
		return mCycles;
	}
	//--------------------------------------------------------------------------------
	inline void TextureAnimatorAffector::SetStart(ushort start)
	{
		mTexStart = start;
	}
	inline ushort TextureAnimatorAffector::GetStart(void) const
	{
		return mTexStart;
	}
	//--------------------------------------------------------------------------------
	inline void TextureAnimatorAffector::SetEnd(ushort end)
	{
		mTexEnd = end;
	}
	inline ushort TextureAnimatorAffector::GetEnd(void) const
	{
		return mTexEnd;
	}
}
#endif