mirror of https://github.com/OpenTTD/OpenTTD.git
(svn r20740) -Codechange: Add HasTileWaterClass() to test for tiletypes with WaterClass.
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@ -64,6 +64,17 @@ static inline WaterTileType GetWaterTileType(TileIndex t)
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return WATER_TILE_DEPOT;
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}
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/**
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* Checks whether the tile has an waterclass associated.
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* You can then subsequently call GetWaterClass().
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* @param t Tile to query.
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* @return True if the tiletype has a waterclass.
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*/
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static inline bool HasTileWaterClass(TileIndex t)
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{
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return IsTileType(t, MP_WATER) || IsTileType(t, MP_STATION) || IsTileType(t, MP_INDUSTRY) || IsTileType(t, MP_OBJECT);
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}
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/**
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* Get the water class at a tile.
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* @param t Water tile to query.
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@ -72,7 +83,7 @@ static inline WaterTileType GetWaterTileType(TileIndex t)
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*/
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static inline WaterClass GetWaterClass(TileIndex t)
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{
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assert(IsTileType(t, MP_WATER) || IsTileType(t, MP_STATION) || IsTileType(t, MP_INDUSTRY) || IsTileType(t, MP_OBJECT));
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assert(HasTileWaterClass(t));
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return (WaterClass)GB(_m[t].m1, 5, 2);
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}
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@ -84,7 +95,7 @@ static inline WaterClass GetWaterClass(TileIndex t)
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*/
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static inline void SetWaterClass(TileIndex t, WaterClass wc)
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{
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assert(IsTileType(t, MP_WATER) || IsTileType(t, MP_STATION) || IsTileType(t, MP_INDUSTRY) || IsTileType(t, MP_OBJECT));
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assert(HasTileWaterClass(t));
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SB(_m[t].m1, 5, 2, wc);
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}
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