axmol/cocos2dx/effects/CCGrid.h

/****************************************************************************
 Copyright (c) 2010-2011 cocos2d-x.org
 Copyright (c) 2009      On-Core

 http://www.cocos2d-x.org

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

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 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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#ifndef __EFFECTS_CCGRID_H__
#define __EFFECTS_CCGRID_H__

#include "CCObject.h"
#include "CCNode.h"
#include "CCCamera.h"
#include "ccTypes.h"
#include "CCTexture2D.h"

namespace cocos2d
{
class CCTexture2D;
class CCGrabber;

/** Base class for other
 */
class CCGridBase : public CCObject
{
public:
    virtual ~CCGridBase(void);

    /** wheter or not the grid is active */
    inline bool isActive(void) {
        return m_bActive;
    }
    void setActive(bool bActive);

    /** number of times that the grid will be reused */
    inline int getReuseGrid(void) {
        return m_nReuseGrid;
    }
    inline void setReuseGrid(int nReuseGrid) {
        m_nReuseGrid = nReuseGrid;
    }

    /** size of the grid */
    inline const ccGridSize& getGridSize(void) {
        return m_sGridSize;
    }
    inline void setGridSize(const ccGridSize& gridSize) {
        m_sGridSize = gridSize;
    }

    /** pixels between the grids */
    inline const CCPoint& getStep(void) {
        return m_obStep;
    }
    inline void setStep(const CCPoint& step) {
        m_obStep = step;
    }

    /** is texture flipped */
    inline bool isTextureFlipped(void) {
        return m_bIsTextureFlipped;
    }
    void setIsTextureFlipped(bool bFlipped);

    bool initWithSize(const ccGridSize& gridSize, CCTexture2D *pTexture, bool bFlipped);
    bool initWithSize(const ccGridSize& gridSize);

    void beforeDraw(void);
    void afterDraw(CCNode *pTarget);
    virtual void blit(void);
    virtual void reuse(void);
    virtual void calculateVertexPoints(void);

public:
    static CCGridBase* gridWithSize(const ccGridSize& gridSize, CCTexture2D *texture, bool flipped);
    static CCGridBase* gridWithSize(const ccGridSize& gridSize);
    void set2DProjection(void);
    void set3DProjection(void);

protected:
    void applyLandscape(void);

protected:
    bool m_bActive;
    int  m_nReuseGrid;
    ccGridSize m_sGridSize;
    CCTexture2D *m_pTexture;
    CCPoint m_obStep;
    CCGrabber *m_pGrabber;
    bool m_bIsTextureFlipped;
};

/**
 CCGrid3D is a 3D grid implementation. Each vertex has 3 dimensions: x,y,z
 */
class CCGrid3D : public CCGridBase
{
public:
    ~CCGrid3D(void);

    /** returns the vertex at a given position */
    ccVertex3F vertex(const ccGridSize& pos);
    /** returns the original (non-transformed) vertex at a given position */
    ccVertex3F originalVertex(const ccGridSize& pos);
    /** sets a new vertex at a given position */
    void setVertex(const ccGridSize& pos, const ccVertex3F& vertex);

    virtual void blit(void);
    virtual void reuse(void);
    virtual void calculateVertexPoints(void);

public:
    static CCGrid3D* gridWithSize(const ccGridSize& gridSize, CCTexture2D *pTexture, bool bFlipped);
    static CCGrid3D* gridWithSize(const ccGridSize& gridSize);

protected:
    GLvoid *m_pTexCoordinates;
    GLvoid *m_pVertices;
    GLvoid *m_pOriginalVertices;
    GLushort *m_pIndices;
};

/**
 CCTiledGrid3D is a 3D grid implementation. It differs from Grid3D in that
 the tiles can be separated from the grid.
 */
class CCTiledGrid3D : public CCGridBase
{
public:
    ~CCTiledGrid3D(void);

    /** returns the tile at the given position */
    ccQuad3 tile(const ccGridSize& pos);
    /** returns the original tile (untransformed) at the given position */
    ccQuad3 originalTile(const ccGridSize& pos);
    /** sets a new tile */
    void setTile(const ccGridSize& pos, const ccQuad3& coords);

    virtual void blit(void);
    virtual void reuse(void);
    virtual void calculateVertexPoints(void);

public:
    static CCTiledGrid3D* gridWithSize(const ccGridSize& gridSize, CCTexture2D *pTexture, bool bFlipped);
    static CCTiledGrid3D* gridWithSize(const ccGridSize& gridSize);

protected:
    GLvoid *m_pTexCoordinates;
    GLvoid *m_pVertices;
    GLvoid *m_pOriginalVertices;
    GLushort *m_pIndices;
};

} // namespace cocos2d

#endif // __EFFECTS_CCGRID_H__