tilemap.h

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#ifndef TILEMAP_H
#define TILEMAP_H
 
#define TILEMAP_FLAG_WEATHER_MASK 0x0f
 
#define TILEMAP_FLAG_WEATHER_SNOW 0x01
#define TILEMAP_FLAG_WEATHER_RAIN 0x02
 
#define TILEMAP_FLAG_EDITABLE 0x10
 
#define TILEMAP_ERROR_BLOCKED -40
 
#define TILESET_FLAG_BLOCK  0x01
 
#define TILESET_FLAG_FARMABLE 0x02
 
#define TILESET_FLAG_ACTIVE 0x80
 
#define TILEMAP_TILE_FLAG_DIRTY     0x01
 
#define tilemap_get_tile_id( t, x, y ) (((t)->tiles[((y * TILEMAP_TW) + x) / 2] >> (0 == x % 2 ? 4 : 0)) & 0x0f)
 
#ifdef PLATFORM_CURSES
#  define tilemap_tile_get_image( tt ) ((tt)->ascii)
#else
#  define tilemap_tile_get_image( tt ) ((tt)->image_cache_id)
#endif /* PLATFORM_CURSES */
 
/*
#define mobile_break_if_last( mobiles, i ) if( MOBILE_FLAG_NOT_LAST != (MOBILE_FLAG_NOT_LAST & mobiles[i].flags) ) { debug_printf( 0, "breaking early on mobile %d!", i ); break; }
*/
 
#ifndef IGNORE_DIRTY
 
#define tilemap_is_dirty( x, y, map ) (((map)->tiles_flags[((y) * TILEMAP_TW) + (x)] & TILEMAP_TILE_FLAG_DIRTY))
 
#define tilemap_set_dirty( x, y, map ) (map)->tiles_flags[(y * TILEMAP_TW) + x] |= TILEMAP_TILE_FLAG_DIRTY;
 
#define tilemap_unset_dirty( x, y, map ) (map)->tiles_flags[(y * TILEMAP_TW) + x] &= ~TILEMAP_TILE_FLAG_DIRTY;
 
#endif /* !IGNORE_DIRTY */
 
#ifdef RESOURCE_FILE
 
uint16_t tilemap_fix_asset_path(
   char* path_in, uint16_t path_in_sz, const char* map_path );
 
#endif /* RESOURCE_FILE */
 
int16_t tilemap_load( const char* map_name, struct TILEMAP* t );
 
void tilemap_refresh_tiles( struct TILEMAP* t );
 
void tilemap_set_weather( uint8_t weather, struct TILEMAP* t ) SECTION_TILEMAP;
 
int8_t tilemap_collide( 
   uint8_t x, uint8_t y, uint8_t dir, struct TILEMAP* t );
 
void tilemap_advance_tile_id( struct TILEMAP* t, uint16_t x, uint16_t y )
SECTION_TILEMAP;
 
void tilemap_deinit( struct TILEMAP* ) SECTION_TILEMAP;
 
#  ifdef TILEMAP_C
 
#     ifdef RESOURCE_FILE
 
#        include "tmjson.h"
#        include "tmasn.h"
 
/* Get the real path to the tileset (it's JSON so assume file paths). */
/* Resource IDs would be using pre-parsed maps. */
 
uint16_t tilemap_fix_asset_path(
   char* path_in, uint16_t path_in_sz, const char* map_path
) {
   uint16_t path_sz_out = 0,
      map_path_sz = 0;
 
   map_path_sz = memory_strnlen_ptr( map_path, RESOURCE_PATH_MAX );
   path_sz_out = dio_char_idx_r( map_path, map_path_sz, PLATFORM_DIR_SEP );
   if(
      /* Found a map path. */
      0 < path_sz_out &&
      /* Map path fits in buffer with filename, separator, and NULL. */
      path_in_sz > path_sz_out + 2
   ) {
      /* Prepend map directory to tileset name. */
      memory_strncpy_ptr( path_in, map_path, path_sz_out );
 
      /* Append path separator. */
      path_in[path_sz_out++] = PLATFORM_DIR_SEP;
 
      /* Add (temporary) NULL terminator. */
      path_in[path_sz_out] = '\0';
 
      debug_printf( 2, "map directory: %s", path_in );
 
   } else {
      error_printf( "unable to fit map path into buffer!" );
      path_sz_out = 0;
   }
 
   return path_sz_out;
}
 
#     endif /* RESOURCE_FILE */
 
#  endif /* TILEMAP_C */
 
#endif /* TILEMAP_H */