axmol/extensions/Particle3D/CCParticle3DRender.h

/****************************************************************************
 Copyright (c) 2015 Chukong Technologies Inc.
 
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 all copies or substantial portions of the Software.
 
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#ifndef __CC_PARTICLE_3D_RENDER_H__
#define __CC_PARTICLE_3D_RENDER_H__

#include "base/CCRef.h"
#include "math/CCMath.h"
#include <vector>

NS_CC_BEGIN

class ParticleSystem3D;
class Renderer;
class MeshCommand;
class Sprite3D;
class GLProgramState;
class IndexBuffer;
class VertexBuffer;
class Texture2D;

/**
 * 3d particle render
 */
class CC_DLL Particle3DRender : public Ref
{
    friend class ParticleSystem3D;
public:

    virtual void render(Renderer* renderer, const Mat4 &transform, ParticleSystem3D* particleSystem) = 0;

    /** Perform activities when a Renderer is started.
    */
    virtual void notifyStart();
    /** Perform activities when a Renderer is stopped.
    */
    virtual void notifyStop();
    /** Notify that the Particle System is rescaled.
    */
    virtual void notifyRescaled(const Vec3& scale);
    
    void setVisible(bool isVisible) { _isVisible = isVisible; }
    
    bool isVisible() const { return _isVisible; }

    virtual void setDepthTest(bool isDepthTest) { _depthTest = isDepthTest; }
    virtual void setDepthWrite(bool isDepthWrite) {_depthWrite = isDepthWrite; }
    
CC_CONSTRUCTOR_ACCESS:
    Particle3DRender()
        : _particleSystem(nullptr)
        , _isVisible(true)
        , _rendererScale(Vec3::ONE)
        , _depthTest(true)
        , _depthWrite(false)
    {};
    virtual ~Particle3DRender(){};
    
protected:
    ParticleSystem3D *_particleSystem;
    bool  _isVisible;
    Vec3 _rendererScale;
    bool _depthTest;
    bool _depthWrite;
};

// particle render for quad
class CC_DLL Particle3DQuadRender : public Particle3DRender
{
public:
    static Particle3DQuadRender* create(const std::string& texFile = "");
    
    virtual void render(Renderer* renderer, const Mat4 &transform, ParticleSystem3D* particleSystem) override;

    virtual void setDepthTest(bool isDepthTest) override;
    virtual void setDepthWrite(bool isDepthWrite) override;
    
CC_CONSTRUCTOR_ACCESS:
    Particle3DQuadRender();
    virtual ~Particle3DQuadRender();

protected:

    bool initQuadRender(const std::string& texFile);
    
protected:
    MeshCommand* _meshCommand;
    Texture2D*             _texture;
    GLProgramState*        _glProgramState;
    IndexBuffer*           _indexBuffer; //index buffer
    VertexBuffer*          _vertexBuffer; // vertex buffer
    
    struct posuvcolor
    {
        Vec3 position;
        Vec2 uv;
        Vec4 color;
    };

    std::vector<posuvcolor> _posuvcolors;   //vertex data
    std::vector<unsigned short> _indexData; //index data
};

// particle render for Sprite3D
class CC_DLL Particle3DModelRender : public Particle3DRender
{
public:
    static Particle3DModelRender* create(const std::string& modelFile, const std::string &texFile = "");

    virtual void render(Renderer* renderer, const Mat4 &transform, ParticleSystem3D* particleSystem) override;
    
CC_CONSTRUCTOR_ACCESS:
    Particle3DModelRender();
    virtual ~Particle3DModelRender();
    
protected:
    std::vector<Sprite3D *> _spriteList;
    std::string _modelFile;
    std::string _texFile;
    Vec3 _spriteSize;
};

NS_CC_END

#endif