#ifndef _VisibilityEnvironment_H__
#define _VisibilityEnvironment_H__

#include <string>


namespace GtpVisibilityPreprocessor {
class Environment;
}

namespace GtpVisibility {

/** This class provides different parameters for the visibility manager.
*/
class VisibilityEnvironment
{
public:
    VisibilityEnvironment();
	~VisibilityEnvironment();
	/** Different types of occlusion culling algorithms 
	*/
	enum CullingManagerType {COHERENT_HIERARCHICAL_CULLING, 
							 FRUSTUM_CULLING, 
							 STOP_AND_WAIT_CULLING, 
							 NUM_CULLING_MANAGERS};

	
	/** Loads an environment from disk.
	*/
	bool LoadEnvironment(std::string filename);
	/** Returns filename of scene.
	*/
	std::string getSceneFileName();
	/** Returns filename of view cells file.
	*/
	std::string getViewCellsFileName();

	GtpVisibilityPreprocessor::Environment *GetPreprocessorEnvironment();


protected:
	//GtpVisibilityPreprocessor::Environment *Environment::GetSingleton();
};
} // namespace GtpVisibility

#endif // VisibilityEnvironment_H