#pragma once

//disable inheritance warning caused by multiple inheritance
#if _WIN32
#if _MSC_VER
#pragma warning(disable: 4250)
#endif
#endif

#include "OgreRenderingRun.h"
#include "OgreSharedRuns.h"


/**
	@brief FocusingMapRenderingRun.

	A run to help focusing light projections for shadow mapping.
*/
class OgreFocusingMapRenderingRun : public OgreRenderingRun									
{	
public:

	/**
		@brief Constructor.
		@param name				the name of the focusing map texture to be created
		@param lightMatrix      the light matrix to be focused
		@param focusingMapSize  size of the focusing map		
	*/	
	OgreFocusingMapRenderingRun(String name,
								Matrix4 lightMatrix,
								unsigned int focusingMapSize);

	virtual ~OgreFocusingMapRenderingRun(){}
	/**
		@brief returns the name of the focusing texture
	*/
	String getFocusingTextureName(){return name;}
	/**
		@brief gets the boundig box min-max points

		These values are given in light space and can be used to adjust the light matrices to focuse on important objects only.
	*/
	void getMinMax(Vector3& min, Vector3& max);
	/**
		@brief Sets the light matrix that should be  focused.
	*/
	void setLightMatrix(Matrix4 &m){this->lightMatrix = m;}
	/**
		@brief Sets the player camera matrices.		
	*/
	void setCameraMatrices(const Matrix4 &view, const Matrix4 &projection);

	void freeAllResources();
	
protected:
	/**
		@brief light matrix to be focused	
	*/
	Matrix4 lightMatrix;
	/**
		@brief fosusing map camera	
	*/
	Camera* camera;
	
	/**
		@brief the name of the focusing texture that was created by this run
	*/
	String name;
	/**
		@brief a pointer to the focusing texture that was created by this run
	*/
	Texture* focusingTexture;
	/**
		@brief the size of the focusing map
	*/
	unsigned int focusingMapSize;

	//inherited
	void updateFrame(unsigned long frameNum);	
	/**
		@brief creates the focusing map texture
	*/
	inline void createFocusingMap();
	//inherited
	bool needUpdate(unsigned long frameNum )
	{
		return true;
	}

};