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@ -1535,6 +1535,31 @@ static void DoCreateTown(Town *t, TileIndex tile, uint32 townnameparts, TownSize
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UpdateAirportsNoise();
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}
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/**
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* Checks if it's possible to place a town at given tile
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* @param tile tile to check
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* @return error value or zero cost
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*/
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static CommandCost TownCanBePlacedHere(TileIndex tile)
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{
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/* Check if too close to the edge of map */
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if (DistanceFromEdge(tile) < 12) {
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return_cmd_error(STR_0237_TOO_CLOSE_TO_EDGE_OF_MAP);
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}
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/* Check distance to all other towns. */
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if (IsCloseToTown(tile, 20)) {
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return_cmd_error(STR_0238_TOO_CLOSE_TO_ANOTHER_TOWN);
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}
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/* Can only build on clear flat areas, possibly with trees. */
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if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || GetTileSlope(tile, NULL) != SLOPE_FLAT) {
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return_cmd_error(STR_0239_SITE_UNSUITABLE);
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}
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return CommandCost();
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}
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/** Create a new town.
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* This obviously only works in the scenario editor. Function not removed
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* as it might be possible in the future to fund your own town :)
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@ -1558,22 +1583,11 @@ CommandCost CmdBuildTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
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if (size > TS_RANDOM) return CMD_ERROR;
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if (layout > TL_RANDOM) return CMD_ERROR;
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if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
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/* Check if too close to the edge of map */
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if (DistanceFromEdge(tile) < 12) {
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return_cmd_error(STR_0237_TOO_CLOSE_TO_EDGE_OF_MAP);
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}
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/* Check distance to all other towns. */
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if (IsCloseToTown(tile, 20)) {
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return_cmd_error(STR_0238_TOO_CLOSE_TO_ANOTHER_TOWN);
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}
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if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
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/* Can only build on clear flat areas, possibly with trees. */
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if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || GetTileSlope(tile, NULL) != SLOPE_FLAT) {
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return_cmd_error(STR_0239_SITE_UNSUITABLE);
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}
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CommandCost cost = TownCanBePlacedHere(tile);
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if (CmdFailed(cost)) return cost;
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/* Allocate town struct */
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if (!Town::CanAllocateItem()) return_cmd_error(STR_023A_TOO_MANY_TOWNS);
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@ -1606,16 +1620,11 @@ Town *CreateRandomTown(uint attempts, TownSize size, bool city, TownLayout layou
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break;
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default: break;
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}
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if (DistanceFromEdge(tile) < 20) continue;
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/* Make sure the tile is plain */
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if (!IsTileType(tile, MP_CLEAR) || GetTileSlope(tile, NULL) != SLOPE_FLAT) continue;
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/* Check not too close to a town */
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if (IsCloseToTown(tile, 20)) continue;
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/* Make sure town can be placed here */
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if (CmdFailed(TownCanBePlacedHere(tile))) continue;
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uint32 townnameparts;
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/* Get a unique name for the town. */
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if (!GenerateTownName(&townnameparts)) break;
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