///////////////////////////////////////////////////////////////////////////
//
//		Realistic rain real-time simulation program
//
//		Pierre Rousseau
//
///////////////////////////////////////////////////////////////////////////
//
//		Texture cameras handling
//
///////////////////////////////////////////////////////////////////////////



#ifndef __RAIN_TEXTURE_FRAME_LISTENER__
#define __RAIN_TEXTURE_FRAME_LISTENER__


#include "CommonRain.h"
#include "OgreRenderTargetListener.h"
#include "ExampleApplication.h"



/** TextureFrameListener class
  * enables us not to see the particle systems in the textures we capture to texture our particles 
  */
class TextureFrameListener : public Ogre::RenderTargetListener
{
private :
    SceneManager* mSceneMgr;

public:
    /** constructor used when rain is rendered with a particle system */
    TextureFrameListener(SceneManager* SceneMgr);

    /** pre-render operations, hides the rain system, so it is not seen in the captured texture */
    void preRenderTargetUpdate (const Ogre::RenderTargetEvent &evt);

    /** post-render operations, shows the hidden rain system */
    void postRenderTargetUpdate (const Ogre::RenderTargetEvent &evt);
};


#endif //__RAIN_TEXTURE_FRAME_LISTENER__