/*==========================================================================
 *	(C) 2006 Universidad Jaime I de Castellón
 *==========================================================================
 *	PROYECT:	GAME TOOLS
 *==========================================================================*/
/*	CONTENT:
 *
 *
 *	@file	GeoLodManager.h
 *==========================================================================*/

#ifndef _GEOLODMANAGER
#define _GEOLODMANAGER

#include "GeoVector3.h"
#include "GeoLodObject.h"

namespace Geometry
{
	class NodeContainer;	
	class lodobj_node_t;

	class LodManager
	{	
	public:
		LodManager(Real near, Real far, const Geometry::Vector3 &campos, int numslots=10);
		~LodManager(void);
		void AddLodObj(const std::string &name, LodObject*, const Geometry::Vector3 &);
		void UpdateLOD(uint32 currFPS, uint32 targetFPS=30);
		void UpdateCamera(const Geometry::Vector3 &);
		void UpdateLODObjectPos(LodObject*,const Geometry::Vector3 &);

		bool always_calculate_lod; // if true, there is no instant LOD changing
		bool force_highest_lod; // if set to true, all objects will be set to their highest level of detail

	private:
		NodeContainer *lodobj_container;
		uint32 lasttime;
		bool camera_changed, node_added;
		float near_range, far_range;
		float SelectRandomDistance(void) const;
		void ChangeLOD(lodobj_node_t*,Real);
		void ReallyGoToLOD(lodobj_node_t*,Real);

		lodobj_node_t * FindMostSimilarRealLOD(const std::string &, Real desired_lod);

		void MakeDiscipleOf(lodobj_node_t *master, lodobj_node_t *disciple);
		void MakeIndependent(lodobj_node_t*);
		void RemoveDiscipleFrom(LodObject *master, LodObject *disciple);
		void UpdateDisciples(lodobj_node_t *master);
		void DeleteMeFromMyMastersDiscipleList(lodobj_node_t *);
		void ChangeMaster(lodobj_node_t *orig, lodobj_node_t *newmaster);
	};
}

#endif