BlockPieceParticle.h

#pragma once
#include "BlockDynamicObject.h"
#include "ParticleElement.h"

namespace ParaEngine
{
    class CBlockPieceParticle;

    class CBlockPieceParticleElement : public CParticleElement
    {
    public:
        typedef ParaEngine::weak_ptr<IObject, CBlockPieceParticle> WeakPtr_type;

        CBlockPieceParticleElement(CBlockPieceParticle* pParent);
        virtual ~CBlockPieceParticleElement();

        virtual int RenderParticle(SPRITEVERTEX** pVertexBuffer, SceneState* pSceneState);
        virtual TextureEntity* GetTexture();
        virtual bool IsPointTexture() { return true; }
        virtual bool IsAlphaTested() { return false; }

    protected:
        WeakPtr_type m_pParent;
    };

    class CBlockPieceParticle : public CBlockDynamicObject
    {
    public:
        CBlockPieceParticle();

        virtual ~CBlockPieceParticle();

        ATTRIBUTE_DEFINE_CLASS(CBlockPieceParticle);
        ATTRIBUTE_SUPPORT_CREATE_FACTORY(CBlockPieceParticle);

        virtual int InstallFields(CAttributeClass* pClass, bool bOverride);
        
        ATTRIBUTE_METHOD1(CBlockPieceParticle, SetTextureFilename_s, const char*)   { cls->SetTextureFilename(p1); return S_OK; }
    public:
        virtual HRESULT Draw(SceneState * sceneState);
        virtual int PrepareRender(CBaseCamera* pCamera, SceneState* pSceneState);

        void SetTextureFilename(const std::string& texture);
    public:
        TextureEntity* GetTexture();
        int RenderParticle(SPRITEVERTEX** pVertexBuffer, SceneState* pSceneState);
    protected:
        float CalculateOpacity();
        void GenerateParticleUV();
        
    protected:
    
        ref_ptr<TextureEntity> m_texture;
        ParticleRectUV m_texUVs;
        ref_ptr<CBlockPieceParticleElement> m_particle_element;
    };
}