#ifndef MAPHANDLER_H
#define MAPHANDLER_H

#include "hch/CAmbarCendamo.h"
#include "hch/CSemiDefHandler.h"
#include "CGameInfo.h"
#include "hch/CDefHandler.h"
#include <boost/logic/tribool.hpp>
#include "hch/CObjectHandler.h"
#include <list>
const int Woff = 12; //width of map's frame
const int Hoff = 8;

struct TerrainTile2
{
	int3 pos; //this tile's position
	EterrainType terType; //type of terrain tile

	Eroad malle; //type of road
	unsigned char roaddir; //type of road tile

	Eriver nuine; //type of river
	unsigned char  rivdir; //type of river tile

	std::vector<SDL_Surface *> terbitmap; //frames of terrain animation
	std::vector<SDL_Surface *> rivbitmap; //frames of river animation
	std::vector<SDL_Surface *> roadbitmap; //frames of road animation

	bool visitable; //false = not visitable; true = visitable
	bool blocked; //false = free; true = blocked;

	std::vector < std::pair<CGObjectInstance*,SDL_Rect> > objects; //poiters to objects being on this tile with rects to be easier to blit this tile on screen
	std::vector <CGObjectInstance*> visitableObjects; //pointers to objects hero is visiting being on this tile

};

//pathfinder
//	map<int,int> iDTerenu=>koszt_pola
//	map<int,int> IDdrogi=>koszt_drogi
template <typename T> class PseudoV
{
public:
	int offset;
	std::vector<T> inver;
	inline T & operator[](int n)
	{
		return inver[n+offset];
	}
	void resize(int rest,int Offset)
	{
		inver.resize(Offset*2+rest);
		offset=Offset;
	}
	int size() const
	{
		return inver.size();
	}
};
class CMapHandler
{
public:
	PseudoV< PseudoV< PseudoV<TerrainTile2> > > ttiles;
	int3 sizes;
	CAmbarCendamo * reader;
	std::set<int> usedHeroes;
	CDefHandler * fullHide;
	CDefHandler * partialHide;

	PseudoV< PseudoV< PseudoV<unsigned char> > > visibility; //true means that pointed place is visible //not used now
	//std::vector< std::vector<char> > undVisibility; //true means that pointed place is visible
	std::vector<CDefHandler *> roadDefs;
	std::vector<CDefHandler *> staticRiverDefs;

	std::map<std::string, CDefHandler*> loadedDefs; //pointers to loaded defs (key is filename, uppercase)
	std::map<int, CGDefInfo*> villages, forts, capitols;
	std::vector< std::vector< std::string > > battleBacks; //battleBacks[terType] - vector of possible names for certain terrain type
	std::vector< std::string > battleHeroes; //battleHeroes[hero type] - name of def that has hero animation for battle

	PseudoV< PseudoV< PseudoV<unsigned char> > > hideBitmap; //specifies number of graphic that should be used to fully hide a tile

	char & visAccess(int x, int y);
	char & undVisAccess(int x, int y);
	SDL_Surface mirrorImage(SDL_Surface *src); //what is this??
	SDL_Surface * getVisBitmap(int x, int y, PseudoV< PseudoV< PseudoV<unsigned char> > > & visibilityMap, int lvl);

	int getCost(int3 & a, int3 & b, const CGHeroInstance * hero);
	std::vector< std::string > getObjDescriptions(int3 pos); //returns desriptions of objects blocking given position
	std::vector< CGObjectInstance * > getVisitableObjs(int3 pos); //returns vector of visitable objects at certain position
	CGObjectInstance * createObject(int id, int subid, int3 pos, int owner=254); //creates a new object with a certain id and subid
	std::string getDefName(int id, int subid); //returns name of def for object with given id and subid
	bool printObject(CGObjectInstance * obj); //puts appropriate things to ttiles, so obj will be visible on map
	bool hideObject(CGObjectInstance * obj); //removes appropriate things from ttiles, so obj will be no longer visible on map (but still will exist)
	bool removeObject(CGObjectInstance * obj); //removes object from each place in VCMI (I hope)
	bool recalculateHideVisPos(int3& pos); //recalculates position for hidden / visitable positions
	bool recalculateHideVisPosUnderObj(CGObjectInstance * obj, bool withBorder = false); //recalculates position for hidden / visitable positions under given object
	void init();
	int pickHero(int owner);
	std::pair<int,int> pickObject(CGObjectInstance *obj);
	void randomizeObject(CGObjectInstance *cur);
	void calculateBlockedPos();
	void initObjectRects();
	void borderAndTerrainBitmapInit();
	void roadsRiverTerrainInit();
	void prepareFOWDefs();
	void randomizeObjects();

	SDL_Surface * terrainRect(int x, int y, int dx, int dy, int level=0, unsigned char anim=0, PseudoV< PseudoV< PseudoV<unsigned char> > > & visibilityMap = CGI->mh->visibility, bool otherHeroAnim = false, unsigned char heroAnim = 0, SDL_Surface * extSurf = NULL, SDL_Rect * extRect = NULL); //if extSurf is specified, blit to it
	SDL_Surface * terrBitmap(int x, int y);
	SDL_Surface * undTerrBitmap(int x, int y);
	std::string getRandomizedDefName(CGDefInfo* di, CGObjectInstance * obj = NULL); //objinstance needed only for heroes and towns
	unsigned char getHeroFrameNum(const unsigned char & dir, const bool & isMoving) const; //terrainRect helper function
	void validateRectTerr(SDL_Rect * val, const SDL_Rect * ext); //terrainRect helper
	static unsigned char getDir(const int3 & a, const int3 & b); //returns direction number in range 0 - 7 (0 is left top, clockwise) [direction: form a to b]

};

#endif //MAPHANDLER_H