author | tron |
Fri, 28 Jan 2005 15:31:04 +0000 | |
changeset 1202 | 4d2a20c50760 |
parent 1174 | 6a5e747f3ba6 |
child 1209 | 2e00193652b2 |
permissions | -rw-r--r-- |
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#ifndef MAP_H |
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#define MAP_H |
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#define TILE_FROM_XY(x,y) (int)((((y) >> 4) << MapLogX()) + ((x) >> 4)) |
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#define TILE_XY(x,y) (((y) << MapLogX()) + (x)) |
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#define TILE_MASK(x) ((x) & ((1 << (MapLogX() + MapLogY())) - 1)) |
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extern byte _map_type_and_height[]; |
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extern byte _map5[]; |
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extern byte _map3_lo[]; |
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extern byte _map3_hi[]; |
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extern byte _map_owner[]; |
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extern uint16 _map2[]; |
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extern byte _map_extra_bits[]; |
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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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// Scale a number relative to the map size |
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uint ScaleByMapSize(uint); // Scale relative to the number of tiles |
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uint ScaleByMapSize1D(uint); // Scale relative to the circumference of the map |
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typedef uint32 TileIndex; |
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static inline uint TileX(TileIndex tile) |
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{ |
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return tile & MapMaxX(); |
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} |
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static inline uint TileY(TileIndex tile) |
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{ |
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return tile >> MapLogX(); |
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} |
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typedef int32 TileIndexDiff; |
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typedef struct TileIndexDiffC { |
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int16 x; |
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int16 y; |
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} TileIndexDiffC; |
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static inline TileIndexDiff ToTileIndexDiff(TileIndexDiffC tidc) |
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{ |
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return (tidc.y << MapLogX()) + tidc.x; |
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} |
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#ifndef _DEBUG |
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#define TILE_ADD(x,y) ((x) + (y)) |
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#else |
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extern TileIndex TileAdd(TileIndex tile, TileIndexDiff add, |
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const char *exp, const char *file, int line); |
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#define TILE_ADD(x, y) (TileAdd((x), (y), #x " + " #y, __FILE__, __LINE__)) |
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#endif |
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#define TILE_ADDXY(tile, x, y) TILE_ADD(tile, TILE_XY(x, y)) |
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static inline TileIndexDiff TileOffsByDir(uint dir) |
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{ |
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extern const TileIndexDiffC _tileoffs_by_dir[4]; |
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assert(dir < lengthof(_tileoffs_by_dir)); |
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return ToTileIndexDiff(_tileoffs_by_dir[dir]); |
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} |
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static inline uint TileHeight(TileIndex tile) |
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{ |
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assert(tile < MapSize()); |
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return _map_type_and_height[tile] & 0xf; |
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} |
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static inline void SetTileHeight(TileIndex tile, uint height) |
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{ |
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assert(tile < MapSize()); |
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assert(height < 16); |
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_map_type_and_height[tile] &= ~0x0F; |
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_map_type_and_height[tile] |= height; |
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} |
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static inline uint TilePixelHeight(TileIndex tile) |
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{ |
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return TileHeight(tile) * 8; |
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} |
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static inline int TileType(TileIndex tile) |
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{ |
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assert(tile < MapSize()); |
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return _map_type_and_height[tile] >> 4; |
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} |
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static inline void SetTileType(TileIndex tile, uint type) |
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{ |
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assert(tile < MapSize()); |
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_map_type_and_height[tile] &= ~0xF0; |
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_map_type_and_height[tile] |= type << 4; |
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} |
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static inline bool IsTileType(TileIndex tile, int type) |
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{ |
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return TileType(tile) == type; |
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} |
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#endif |