#ifndef gui_karte_h
#define gui_karte_h

#include "components/gui_komponente.h"
#include "../tpl/array2d_tpl.h"

class karte_t;
class fabrik_t;
class grund_t;
class stadt_t;
class schedule_t;


#define MAX_MAP_TYPE_LAND 14
#define MAX_MAP_TYPE_WATER 5
#define MAX_SEVERITY_COLORS 10
#define MAX_MAP_ZOOM 4
// set to zero to use the small font
#define ALWAYS_LARGE 1

/**
 * Diese Klasse dient zur Darstellung der Reliefkarte
 * (18.06.00 von simwin getrennt)
 * Als Singleton implementiert.
 *
 * @author Hj. Malthaner
 */
class reliefkarte_t : public gui_komponente_t
{
public:
	enum MAP_MODES {
		PLAIN    = -1,
		MAP_TOWN =  0,
		MAP_PASSENGER,
		MAP_MAIL,
		MAP_FREIGHT,
		MAP_STATUS,
		MAP_SERVICE,
		MAP_TRAFFIC,
		MAP_ORIGIN,
		MAP_DESTINATION,
		MAP_WAITING,
		MAP_TRACKS,
		MAX_SPEEDLIMIT,
		MAP_POWERLINES,
		MAP_TOURIST,
		MAP_FACTORIES,
		MAP_DEPOT,
		MAP_FOREST,
		MAP_CITYLIMIT,
		MAP_PAX_DEST
	};

private:
	static karte_t *welt;
	array2d_tpl<uint8> *relief;

	reliefkarte_t();

	static reliefkarte_t *single_instance;

	/**
	* map mode: -1) normal; everything else: special map
	* @author hsiegeln
	*/
	static MAP_MODES mode;

	static const uint8 severity_color[MAX_SEVERITY_COLORS];

	static const uint8 map_type_color[MAX_MAP_TYPE_LAND+MAX_MAP_TYPE_WATER];

	inline void screen_to_karte(koord &) const;

	// to be prepared for more than one map => nonstatic
	void set_relief_farbe_area(koord k, int areasize, uint8 color);

	// for passenger destination display
	const stadt_t *city;
	unsigned long pax_destinations_last_change;

	const schedule_t *fpl;
	uint8 fpl_player_nr;

	koord last_world_pos;

	// current and new offset and size (to avoid drawing invisible parts)
	koord cur_off, cur_size;
	koord new_off, new_size;

	// true, if full redraw is needed
	bool needs_redraw;

	const fabrik_t* draw_fab_connections(uint8 colour, koord pos) const;

	void draw_schedule(const koord pos) const;

	static sint32 max_departed;
	static sint32 max_arrived;
	static sint32 max_cargo;
	static sint32 max_convoi_arrived;
	static sint32 max_passed;
	static sint32 max_tourist_ziele;

public:
	void karte_to_screen(koord &) const;

	static bool is_visible;

	// the zoom factors
	sint16 zoom_out, zoom_in;

	// 45 rotated map
	bool rotate45;

	// show/hide schedule of convoi
	bool is_show_schedule;

	// show/hide factory connections
	bool is_show_fab;

	/**
	* returns a color based on an amount (high amount/scale -> color shifts from green to red)
	* @author hsiegeln
	*/
	static uint8 calc_severity_color(sint32 amount, sint32 scale);

	/**
	* returns a color based on the current high
	* @author hsiegeln
	*/
	static uint8 calc_hoehe_farbe(const sint16 hoehe, const sint16 grundwasser);

	// needed for town pasenger map
	static uint8 calc_relief_farbe(const grund_t *gr);

	// public, since the convoi updates need this
	// nonstatic, if we have someday many maps ...
	void set_relief_farbe(koord k, int color);

	// we are single instance ...
	static reliefkarte_t *get_karte();

	// HACK! since we cannot get cleanly the current offset/size, we use this helper function
	void set_xy_offset_size( koord off, koord size ) {
		new_off = off;
		new_size = size;
	}

	koord get_offset() const { return cur_off; };

	// update color with render mode (but few are ignored ... )
	void calc_map_pixel(const koord k);

	void calc_map();

	// calculates the current size of the map (but do nopt change anything else)
	void calc_map_groesse();

	~reliefkarte_t();

	karte_t * get_welt() const {return welt;}

	void set_welt(karte_t *welt);

	void set_mode(MAP_MODES new_mode);

	MAP_MODES get_mode() { return mode; }

	// updates the map (if needed)
	void neuer_monat();

	// these are the gui_container needed functions ...
	bool infowin_event(const event_t *ev);

	void zeichnen(koord pos);

	void set_current_fpl(const schedule_t *current_fpl, uint8 player_nr) {fpl = current_fpl; fpl_player_nr = player_nr;};

	void set_city( const stadt_t* _city );

	const stadt_t* get_city() const { return city; };
};

#endif
