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