axmol/cocos/3d/CCMesh.h

/****************************************************************************
 Copyright (c) 2014 Chukong Technologies Inc.

 http://www.cocos2d-x.org

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 of this software and associated documentation files (the "Software"), to deal
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 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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 THE SOFTWARE.
 ****************************************************************************/

#ifndef __CCMESH_H__
#define __CCMESH_H__

#include <string>

#include "3d/CCBundle3DData.h"
#include "3d/CCAABB.h"
#include "3d/3dExport.h"

#include "base/CCRef.h"
#include "math/CCMath.h"
#include "renderer/CCMeshCommand.h"

NS_CC_BEGIN

class Texture2D;
class MeshSkin;
class MeshIndexData;
class GLProgramState;
class GLProgram;
/** 
 * Mesh: contains ref to index buffer, GLProgramState, texture, skin, blend function, aabb and so on
 */
class CC_3D_DLL Mesh : public Ref
{
    friend class Sprite3D;
public:
    typedef std::vector<unsigned short> IndexArray;
    /**create mesh from positions, normals, and so on, sigle SubMesh*/
    static Mesh* create(const std::vector<float>& positions, const std::vector<float>& normals, const std::vector<float>& texs, const IndexArray& indices);
    /**create mesh with vertex attributes*/
    CC_DEPRECATED_ATTRIBUTE static Mesh* create(const std::vector<float>& vertices, int perVertexSizeInFloat, const IndexArray& indices, int numIndex, const std::vector<MeshVertexAttrib>& attribs, int attribCount){ return create(vertices, perVertexSizeInFloat, indices, attribs); }
    
    static Mesh* create(const std::vector<float>& vertices, int perVertexSizeInFloat, const IndexArray& indices, const std::vector<MeshVertexAttrib>& attribs);
    
    /** create mesh */
    static Mesh* create(const std::string& name, MeshIndexData* indexData, MeshSkin* skin = nullptr);
    
    /**get vertex buffer*/
    GLuint getVertexBuffer() const;
    /**has vertex attribute?*/
    bool hasVertexAttrib(int attrib) const;
    /**get mesh vertex attribute count*/
    ssize_t getMeshVertexAttribCount() const;
    /**get MeshVertexAttribute by index*/
    const MeshVertexAttrib& getMeshVertexAttribute(int idx);
    /**get per vertex size in bytes*/
    int getVertexSizeInBytes() const;

    /**texture getter and setter*/
    void setTexture(const std::string& texPath);
    void setTexture(Texture2D* tex);
    Texture2D* getTexture() const { return _texture; }
    
    /**visible getter and setter*/
    void setVisible(bool visible);
    bool isVisible() const { return _visible; }
    
    /**skin getter */
    MeshSkin* getSkin() const { return _skin; }
    
    /**mesh index data getter */
    MeshIndexData* getMeshIndexData() const { return _meshIndexData; }
    
    /**get GLProgramState*/
    GLProgramState* getGLProgramState() const { return _glProgramState; }
    
    /**name getter */
    const std::string& getName() const { return _name; }
    
    void setBlendFunc(const BlendFunc &blendFunc);
    const BlendFunc &getBlendFunc() const;
    
    /** get primitive type*/
    GLenum getPrimitiveType() const;
    /**get index count*/
    ssize_t getIndexCount() const;
    /**get index format*/
    GLenum getIndexFormat() const;
    /**get index buffer*/
    GLuint getIndexBuffer() const;
    
    /**get AABB*/
    const AABB& getAABB() const { return _aabb; }

CC_CONSTRUCTOR_ACCESS:
    
    Mesh();
    virtual ~Mesh();
    
    GLProgram* getDefaultGLProgram(bool textured);
    
    void setGLProgramState(GLProgramState* glProgramState);
    
    MeshCommand& getMeshCommand() { return _meshCommand; }

    /**skin setter*/
    void setSkin(MeshSkin* skin);
    /**Mesh index data setter*/
    void setMeshIndexData(MeshIndexData* indexdata);
    /**name setter*/
    void setName(const std::string& name) { _name = name; }
 
    void calcuateAABB();
    
    void bindMeshCommand();
protected:
    Texture2D* _texture;  //texture that submesh is using
    MeshSkin*  _skin;     //skin
    bool       _visible; // is the submesh visible
    
    //since 3.3
    std::string  _name;
    MeshIndexData*     _meshIndexData;
    GLProgramState* _glProgramState;
    MeshCommand     _meshCommand;
    BlendFunc       _blend;
    AABB         _aabb;
    std::function<void()> _visibleChanged;
};

NS_CC_END

#endif // __CCMESH_H__