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54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
#ifndef OENGINE_SELECTIONBUFFER_H
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#define OENGINE_SELECTIONBUFFER_H
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#include <OgreTexture.h>
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#include <OgreRenderTarget.h>
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#include <OgreMaterialManager.h>
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namespace OEngine
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{
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namespace Render
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{
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struct cmp_ColourValue
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{
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bool operator()(const Ogre::ColourValue &a, const Ogre::ColourValue &b) const
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{
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return a.getAsBGRA() < b.getAsBGRA();
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}
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};
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class SelectionBuffer : public Ogre::MaterialManager::Listener
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{
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public:
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SelectionBuffer(Ogre::Camera* camera, int sizeX, int sizeY, int visibilityFlags);
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virtual ~SelectionBuffer();
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int getSelected(int xPos, int yPos);
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///< @return ID of the selected object
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void update();
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virtual Ogre::Technique* handleSchemeNotFound (
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unsigned short schemeIndex, const Ogre::String &schemeName, Ogre::Material *originalMaterial,
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unsigned short lodIndex, const Ogre::Renderable *rend);
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private:
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Ogre::TexturePtr mTexture;
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Ogre::RenderTexture* mRenderTarget;
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Ogre::Image mBuffer;
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std::map<Ogre::ColourValue, int, cmp_ColourValue> mColourMap;
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Ogre::ColourValue mCurrentColour;
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void getNextColour();
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};
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}
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}
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#endif
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