src/tile.h
author truelight
Wed, 20 Jun 2007 12:09:47 +0000
changeset 6979 c4abd9b85a7a
parent 6422 6679df1c05ba
child 7313 a36dc43afcb5
permissions -rw-r--r--
(svn r10235) -Fix: the 32bpp-anim blitter repainted pixel color 0, which is transparency and therefor should never be repainted (spotted by Rubidium)
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/* $Id$ */
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/** @file tile.h */
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#ifndef TILE_H
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#define TILE_H
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#include "macros.h"
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#include "openttd.h"
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#include "map.h"
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#include "slope.h"
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enum TileType {
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	MP_CLEAR,
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	MP_RAILWAY,
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	MP_STREET,
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	MP_HOUSE,
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	MP_TREES,
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	MP_STATION,
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	MP_WATER,
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	MP_VOID, // invisible tiles at the SW and SE border
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	MP_INDUSTRY,
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	MP_TUNNELBRIDGE,
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	MP_UNMOVABLE,
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};
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enum TropicZone {
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	TROPICZONE_INVALID    = 0,
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	TROPICZONE_DESERT     = 1,
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	TROPICZONE_RAINFOREST = 2,
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};
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Slope GetTileSlope(TileIndex tile, uint *h);
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uint GetTileZ(TileIndex tile);
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uint GetTileMaxZ(TileIndex tile);
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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 GB(_m[tile].type_height, 0, 4);
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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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	SB(_m[tile].type_height, 0, 4, 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) * TILE_HEIGHT;
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}
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static inline TileType GetTileType(TileIndex tile)
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{
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	assert(tile < MapSize());
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	return (TileType)GB(_m[tile].type_height, 4, 4);
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}
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static inline void SetTileType(TileIndex tile, TileType type)
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{
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	assert(tile < MapSize());
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	/* VOID tiles (and no others) are exactly allowed at the lower left and right
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	 * edges of the map */
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	assert((TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY()) == (type == MP_VOID));
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	SB(_m[tile].type_height, 4, 4, type);
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}
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static inline bool IsTileType(TileIndex tile, TileType type)
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{
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	return GetTileType(tile) == type;
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}
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static inline Owner GetTileOwner(TileIndex tile)
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{
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	assert(tile < MapSize());
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	assert(!IsTileType(tile, MP_HOUSE));
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	assert(!IsTileType(tile, MP_VOID));
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	assert(!IsTileType(tile, MP_INDUSTRY));
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	return (Owner)_m[tile].m1;
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}
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static inline void SetTileOwner(TileIndex tile, Owner owner)
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{
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	assert(tile < MapSize());
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	assert(!IsTileType(tile, MP_HOUSE));
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	assert(!IsTileType(tile, MP_VOID));
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	assert(!IsTileType(tile, MP_INDUSTRY));
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	_m[tile].m1 = owner;
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}
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static inline bool IsTileOwner(TileIndex tile, Owner owner)
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{
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	return GetTileOwner(tile) == owner;
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}
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/**
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 * Set the tropic zone
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 * @param tile the tile to set the zone of
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 * @param type the new type
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 * @pre assert(tile < MapSize());
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 */
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static inline void SetTropicZone(TileIndex tile, TropicZone type)
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{
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	assert(tile < MapSize());
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	SB(_m[tile].m6, 0, 2, type);
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}
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/**
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 * Get the tropic zone
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 * @param tile the tile to get the zone of
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 * @pre assert(tile < MapSize());
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 * @return the zone type
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 */
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static inline TropicZone GetTropicZone(TileIndex tile)
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{
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	assert(tile < MapSize());
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	return (TropicZone)GB(_m[tile].m6, 0, 2);
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}
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#endif /* TILE_H */