axmol/cocos2dx/include/CCMotionStreak.h

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Copyright (c) 2010-2011  cocos2d-x.org
Copyright (c) 2011 ForzeField Studios S.L.

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#ifndef __CCMOTION_STREAK_H__
#define __CCMOTION_STREAK_H__

#include "CCProtocols.h"
#include "CCTexture2D.h"
#include "ccTypes.h"
#include "CCNode.h"

NS_CC_BEGIN


/** MotionStreak.
 Creates a trailing path.
 */
class CC_DLL CCMotionStreak : public CCNode, public CCTextureProtocol, public CCRGBAProtocol
{
public:
	CCMotionStreak();
	virtual ~CCMotionStreak();
	/** creates and initializes a motion streak with fade in seconds, minimum segments, stroke's width, color, texture filename */
	static CCMotionStreak* streakWithFade(float fade, float minSeg, float stroke, ccColor3B color, const char* path);
	/** creates and initializes a motion streak with fade in seconds, minimum segments, stroke's width, color, texture */
	static CCMotionStreak* streakWithFade(float fade, float minSeg, float stroke, ccColor3B color, CCTexture2D* texture);

	/** initializes a motion streak with fade in seconds, minimum segments, stroke's width, color and texture filename */
	bool initWithFade(float fade, float minSeg, float stroke, ccColor3B color, const char* path);
	/** initializes a motion streak with fade in seconds, minimum segments, stroke's width, color and texture  */
	bool initWithFade(float fade, float minSeg, float stroke, ccColor3B color, CCTexture2D* texture);

	/** color used for the tint */
	void tintWithColor(ccColor3B colors);

	/** Remove all living segments of the ribbon */
	void reset();

	/** Override super methods */
	virtual void setPosition(const CCPoint& position);
	virtual void draw();
	virtual void update(ccTime delta);

	/* Implement interfaces */
	virtual CCTexture2D* getTexture(void);
	virtual void setTexture(CCTexture2D *texture);
	virtual void setBlendFunc(ccBlendFunc blendFunc);
	virtual ccBlendFunc getBlendFunc(void);
    virtual void setColor(const ccColor3B& color);
	virtual const ccColor3B& getColor(void);
    virtual GLubyte getOpacity(void);
	virtual void setOpacity(GLubyte opacity);
	virtual void setIsOpacityModifyRGB(bool bValue);
	virtual bool getIsOpacityModifyRGB(void);

	/** When fast mode is enbled, new points are added faster but with lower precision */
	CC_SYNTHESIZE(bool, m_bFastMode, IsFastMode);
private:
	/** texture used for the motion streak */
	CCTexture2D* m_pTexture;
	ccBlendFunc m_tBlendFunc;
    CCPoint m_tPositionR;
    ccColor3B m_tColor;

    float m_fStroke;
    float m_fFadeDelta;
    float m_fMinSeg;

    unsigned int m_uMaxPoints;
    unsigned int m_uNuPoints;

    /** Pointers */
    CCPoint* m_pPointVertexes;
    float* m_pPointState;

    // Opengl
    ccVertex2F* m_pVertices;
    GLubyte* m_pColorPointer;
    ccTex2F* m_pTexCoords;
};

NS_CC_END

#endif //__CCMOTION_STREAK_H__