tron@679: #ifndef MAP_H
tron@679: #define MAP_H
tron@679: 
tron@679: #define TILE_X_BITS 8
tron@679: #define TILE_Y_BITS 8
tron@679: 
tron@679: #define TILES_X (1 << TILE_X_BITS)
tron@679: #define TILES_Y (1 << TILE_Y_BITS)
tron@679: 
tron@679: #define TILE_X_MAX (TILES_X - 1)
tron@679: #define TILE_Y_MAX (TILES_Y - 1)
tron@679: 
tron@679: extern byte _map_type_and_height[TILES_X * TILES_Y];
tron@679: extern byte _map5[TILES_X * TILES_Y];
tron@679: extern byte _map3_lo[TILES_X * TILES_Y];
tron@679: extern byte _map3_hi[TILES_X * TILES_Y];
tron@679: extern byte _map_owner[TILES_X * TILES_Y];
tron@679: extern byte _map2[TILES_X * TILES_Y];
tron@679: extern byte _map_extra_bits[TILES_X * TILES_Y / 4];
tron@679: 
tron@689: // binary logarithm of the map size, try to avoid using this one
tron@689: static inline uint MapLogX(void)  { extern uint _map_log_x; return _map_log_x; }
tron@689: static inline uint MapLogY(void)  { extern uint _map_log_y; return _map_log_y; }
tron@689: /* The size of the map */
tron@689: static inline uint MapSizeX(void) { return 1 << MapLogX(); }
tron@689: static inline uint MapSizeY(void) { return 1 << MapLogY(); }
tron@689: /* The maximum coordinates */
tron@689: static inline uint MapMaxX(void) { return MapSizeX() - 1; }
tron@689: static inline uint MapMaxY(void) { return MapSizeY() - 1; }
tron@689: /* The number of tiles in the map */
tron@689: static inline uint MapSize(void) { return MapSizeX() * MapSizeY(); }
tron@689: 
tron@679: #endif