/*
 *        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
    int32_t 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 */