/*
===========================================================================

IceTech GPL Source Code
Copyright (C) 2026 Justin Marshall

===========================================================================
*/

#ifndef __RECAST_NAVIGATION_H__
#define __RECAST_NAVIGATION_H__

typedef int recastNavHandle_t;
typedef int recastObstacleHandle_t;

static const recastNavHandle_t RECAST_NAV_HANDLE_INVALID = -1;
static const int MAX_RECAST_PATH_AREAS = 256;

typedef struct recastPath_s {
	idVec3					moveGoal;
	idVec3					secondaryGoal;
	int						moveAreaNum;
	int						travelTime;
} recastPath_t;

class idRecastNavigationManager {
public:
	virtual					~idRecastNavigationManager( void ) {}

	virtual recastNavHandle_t Alloc( void ) = 0;
	virtual void			Free( recastNavHandle_t handle ) = 0;

	virtual bool			Load( recastNavHandle_t handle, const char *aasName, const char *fileName, unsigned int mapFileCRC ) = 0;
	virtual bool			BuildMapFile( const char *mapName, const char *aasType ) = 0;
	virtual void			Stats( recastNavHandle_t handle ) const = 0;
	virtual void			DebugDraw( recastNavHandle_t handle, idRenderWorld *renderWorld, int drawMode, int lifetime ) const = 0;

	virtual bool			IsLoaded( recastNavHandle_t handle ) const = 0;
	virtual const char *	GetName( recastNavHandle_t handle ) const = 0;
	virtual int				NumPolys( recastNavHandle_t handle ) const = 0;
	virtual const idAASSettings *GetSettings( recastNavHandle_t handle ) const = 0;

	virtual int				PointAreaNum( recastNavHandle_t handle, const idVec3 &origin ) const = 0;
	virtual int				PointReachableAreaNum( recastNavHandle_t handle, const idVec3 &origin, const idBounds &searchBounds, const int areaFlags ) const = 0;
	virtual int				BoundsReachableAreaNum( recastNavHandle_t handle, const idBounds &bounds, const int areaFlags ) const = 0;
	virtual void			PushPointIntoAreaNum( recastNavHandle_t handle, int areaNum, idVec3 &origin ) const = 0;
	virtual idVec3			AreaCenter( recastNavHandle_t handle, int areaNum ) const = 0;
	virtual int				AreaFlags( recastNavHandle_t handle, int areaNum ) const = 0;
	virtual int				AreaTravelFlags( recastNavHandle_t handle, int areaNum ) const = 0;
	virtual bool			Trace( recastNavHandle_t handle, aasTrace_t &trace, const idVec3 &start, const idVec3 &end ) const = 0;

	virtual bool			SetAreaState( recastNavHandle_t handle, const idBounds &bounds, const int areaContents, bool disabled ) = 0;
	virtual recastObstacleHandle_t AddObstacle( recastNavHandle_t handle, const idBounds &bounds ) = 0;
	virtual void			RemoveObstacle( recastNavHandle_t handle, const recastObstacleHandle_t obstacleHandle ) = 0;
	virtual void			RemoveAllObstacles( recastNavHandle_t handle ) = 0;

	virtual int				TravelTimeToGoalArea( recastNavHandle_t handle, int areaNum, const idVec3 &origin, int goalAreaNum, int travelFlags ) const = 0;
	virtual bool			RouteToGoalArea( recastNavHandle_t handle, int areaNum, const idVec3 origin, int goalAreaNum, int travelFlags, recastPath_t &route ) const = 0;
	virtual bool			PathToGoal( recastNavHandle_t handle, recastPath_t &path, int areaNum, const idVec3 &origin, int goalAreaNum, const idVec3 &goalOrigin, int travelFlags ) const = 0;
	virtual bool			PathValid( recastNavHandle_t handle, int areaNum, const idVec3 &origin, int goalAreaNum, const idVec3 &goalOrigin, int travelFlags, idVec3 &endPos, int &endAreaNum ) const = 0;
	virtual bool			PathAreaList( recastNavHandle_t handle, int areaNum, const idVec3 &origin, int goalAreaNum, const idVec3 &goalOrigin, int travelFlags, int *areas, int &numAreas, int maxAreas ) const = 0;
};

extern idRecastNavigationManager *RecastNavigationManager;

#endif /* !__RECAST_NAVIGATION_H__ */