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@@ -45,13 +45,14 @@ enum LockPart {
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LOCK_MIDDLE = 0x10,
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LOCK_LOWER = 0x14,
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LOCK_UPPER = 0x18,
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LOCK_END = 0x1C
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};
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/** Get the water tile type at a tile.
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/**
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* Get the water tile type at a tile.
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* @param t Water tile to query.
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* @return Water tile type at the tile.
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*/
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static inline WaterTileType GetWaterTileType(TileIndex t)
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{
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assert(IsTileType(t, MP_WATER));
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@@ -61,23 +62,25 @@ static inline WaterTileType GetWaterTile
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if (IsInsideMM(_m[t].m5, LOCK_MIDDLE, LOCK_END)) return WATER_TILE_LOCK;
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assert(IsInsideMM(_m[t].m5, DEPOT_NORTH, DEPOT_END));
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return WATER_TILE_DEPOT;
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}
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/** Get the water class at a tile.
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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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* @return Water class at the tile.
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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));
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return (WaterClass)(IsTileType(t, MP_INDUSTRY) ? GB(_m[t].m1, 5, 2) : GB(_m[t].m3, 0, 2));
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}
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/** Set the water class at a tile.
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/**
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* Set the water class at a tile.
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* @param t Water tile to change.
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* @param wc New water class.
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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));
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@@ -85,140 +88,155 @@ static inline void SetWaterClass(TileInd
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SB(_m[t].m1, 5, 2, wc);
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} else {
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SB(_m[t].m3, 0, 2, wc);
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}
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}
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/** Is it a plain water tile?
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/**
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* Is it a plain water tile?
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* @param t Water tile to query.
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* @return \c true if any type of clear water like ocean, river, or canal.
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*/
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static inline bool IsWater(TileIndex t)
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{
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return GetWaterTileType(t) == WATER_TILE_CLEAR;
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}
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/** Is it a sea water tile?
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/**
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* Is it a sea water tile?
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* @param t Water tile to query.
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* @return \c true if it is a sea water tile.
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*/
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static inline bool IsSea(TileIndex t)
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{
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return IsWater(t) && GetWaterClass(t) == WATER_CLASS_SEA;
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}
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/** Is it a canal tile?
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/**
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* Is it a canal tile?
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* @param t Water tile to query.
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* @return \c true if it is a canal tile.
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*/
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static inline bool IsCanal(TileIndex t)
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{
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return IsWater(t) && GetWaterClass(t) == WATER_CLASS_CANAL;
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}
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/** Is it a river water tile?
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/**
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* Is it a river water tile?
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* @param t Water tile to query.
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* @return \c true if it is a river water tile.
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*/
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static inline bool IsRiver(TileIndex t)
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{
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return IsWater(t) && GetWaterClass(t) == WATER_CLASS_RIVER;
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}
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/** Is it a water tile with plain water?
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/**
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* Is it a water tile with plain water?
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* @param t Tile to query.
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* @return \c true if it is a plain water tile.
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*/
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static inline bool IsWaterTile(TileIndex t)
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{
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return IsTileType(t, MP_WATER) && IsWater(t);
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}
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/** Is it a coast tile?
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/**
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* Is it a coast tile?
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* @param t Water tile to query.
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* @return \c true if it is a sea water tile.
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*/
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static inline bool IsCoast(TileIndex t)
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{
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return GetWaterTileType(t) == WATER_TILE_COAST;
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}
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/** Get the other tile of the ship depot.
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/**
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* Get the other tile of the ship depot.
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* @param t Tile to query, containing one section of a ship depot.
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* @return Tile containing the other section of the depot.
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*/
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static inline TileIndex GetOtherShipDepotTile(TileIndex t)
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{
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return t + (HasBit(_m[t].m5, 0) ? -1 : 1) * (HasBit(_m[t].m5, 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0));
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}
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/** Is it a water tile with a ship depot on it?
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/**
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* Is it a water tile with a ship depot on it?
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* @param t Water tile to query.
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* @return \c true if it is a ship depot tile.
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*/
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static inline bool IsShipDepot(TileIndex t)
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{
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return IsInsideMM(_m[t].m5, DEPOT_NORTH, DEPOT_END);
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}
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/** Is it a ship depot tile?
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/**
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* Is it a ship depot tile?
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* @param t Tile to query.
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* @return \c true if it is a ship depot tile.
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*/
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static inline bool IsShipDepotTile(TileIndex t)
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{
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return IsTileType(t, MP_WATER) && IsShipDepot(t);
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}
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/** Get the axis of the ship depot.
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/**
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* Get the axis of the ship depot.
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* @param t Water tile to query.
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* @return Axis of the depot.
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*/
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static inline Axis GetShipDepotAxis(TileIndex t)
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{
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return (Axis)GB(_m[t].m5, 1, 1);
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}
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/** Get the direction of the ship depot.
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/**
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* Get the direction of the ship depot.
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* @param t Water tile to query.
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* @return Direction of the depot.
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*/
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static inline DiagDirection GetShipDepotDirection(TileIndex t)
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{
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return XYNSToDiagDir(GetShipDepotAxis(t), GB(_m[t].m5, 0, 1));
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}
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/** Is it a water lock tile?
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/**
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* Is it a water lock tile?
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* @param t Water tile to query.
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* @return \c true if it is a water lock tile.
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*/
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static inline bool IsLock(TileIndex t)
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{
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return IsInsideMM(_m[t].m5, LOCK_MIDDLE, LOCK_END);
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}
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/** Get the direction of the water lock.
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/**
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* Get the direction of the water lock.
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* @param t Water tile to query.
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* @return Direction of the lock.
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*/
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static inline DiagDirection GetLockDirection(TileIndex t)
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{
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return (DiagDirection)GB(_m[t].m5, 0, 2);
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}
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/** Get a section of a depot or a lock.
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/**
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* Get a section of a depot or a lock.
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* @param t Water tile to query.
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* @return The section.
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*/
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static inline byte GetSection(TileIndex t)
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{
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assert(GetWaterTileType(t) == WATER_TILE_LOCK || GetWaterTileType(t) == WATER_TILE_DEPOT);
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return GB(_m[t].m5, 0, 4);
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}
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/** Get the random bits of the water tile.
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/**
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* Get the random bits of the water tile.
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* @param t Water tile to query.
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* @return Random bits of the tile.
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*/
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static inline byte GetWaterTileRandomBits(TileIndex t)
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{
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return _m[t].m4;
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@@ -309,13 +327,14 @@ static inline void MakeShipDepot(TileInd
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_m[t].m4 = 0;
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_m[t].m5 = base + a * 2;
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SB(_m[t].m6, 2, 4, 0);
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_me[t].m7 = 0;
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}
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/** Make a lock section.
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/**
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* Make a lock section.
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* @param t Tile to place the water lock section.
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* @param o Owner of the lock.
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* @param section Section to place.
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* @param original_water_class Original water class.
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* @see MakeLock
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*/
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