/*
 *	levels.h
 *	BW & RQ sometime in 1993 or 1994
 *	FIXME all those variables should become members of a
 *	"Level" class.
 */


#ifndef YH_LEVELS		/* Prevent multiple inclusion */
#define YH_LEVELS		/* Prevent multiple inclusion */


#include "wstructs.h"
#include "things.h"


// Defined in levels.cc
extern MDirPtr Level;		/* master dictionary entry for the level */

extern int NumThings;		/* number of things */
extern TPtr Things;		/* things data */
extern int NumLineDefs;		/* number of linedefs */
extern LDPtr LineDefs;		/* linedefs data */
extern int NumSideDefs;		/* number of sidedefs */
extern SDPtr SideDefs;		/* sidedefs data */
extern int NumVertices;		/* number of vertices */
extern VPtr Vertices;		/* vertices data */
extern int NumSegs;		/* number of segments */
extern int NumSectors;		/* number of sectors */
extern SPtr Sectors;		/* sectors data */

// FIXME should be somewhere else
extern int NumWTexture;		/* number of wall textures */
extern char **WTexture;		/* array of wall texture names */
extern size_t NumFTexture;	/* number of floor/ceiling textures */
typedef struct
{
    char name[WAD_NAME + 1];	// Name of flat
    const Wad_file *wadfile;	// Pointer on wad where flat comes from
    i32 offset;			// Offset of flat in wad
} flat_list_entry_t;		// Length is implicit (always 4096)
extern flat_list_entry_t *flat_list;	// List of all flats in the directory

extern int MapMaxX;		/* maximum X value of map */
extern int MapMaxY;		/* maximum Y value of map */
extern int MapMinX;		/* minimum X value of map */
extern int MapMinY;		/* minimum Y value of map */
extern bool MadeChanges;	/* made changes? */
extern bool MadeMapChanges;	/* made changes that need rebuilding? */

extern unsigned long things_angles;	/* Used to know whether a list of
					   things sorted by type and angle would
					   need to be rebuilt. Incremented
					   whenever a thing is created, deleted
					   or has its type or angle changed.
					   Presently, no such list exists but
					   there will be one if
					   draw_things_sprites() ever draws
					   sprites according to their angles. */

extern unsigned long things_types;	/* Used to know whether the list of
					   things sorted by type that drawmap.cc
					   maintains should be rebuilt.
					   Incremented whenever a thing is
					   created, deleted or has its type
					   changed. */

extern char Level_name[WAD_NAME + 1];	/* The name of the level (E.G.
					   "MAP01" or "E1M1"), followed by a
					   NUL. If the Level has been created as
					   the result of a "c" command with no
					   argument, an empty string. The name
					   is not necesarily in upper case but
					   it always a valid lump name, not a
					   command line shortcut like "17". */

extern y_file_name_t Level_file_name;	/* The name of the file in which
					   the level would be saved. If the
					   level has been created as the result
					   of a "c" command, with or without
					   argument, an empty string. */

extern y_file_name_t Level_file_name_saved;	/* The name of the file in
						   which the level was last saved. If
						   the Level has never been saved yet,
						   an empty string. */

void EmptyLevelData(const char *levelname);
void update_level_bounds();


#endif /* DO NOT ADD ANYTHING AFTER THIS LINE */