Function ClearTile_Town

src/town_cmd.cpp:717–749

* Callback function to clear a house tile. * @param tile The tile to clear. * @param flags Type of operation. * @return The cost of this operation or an error. */

 * @return The cost of this operation or an error.
 */
static CommandCost ClearTile_Town(TileIndex tile, DoCommandFlags flags)
{
	if (flags.Test(DoCommandFlag::Auto)) return CommandCost(STR_ERROR_BUILDING_MUST_BE_DEMOLISHED);
	if (!CanDeleteHouse(tile)) return CommandCost(STR_ERROR_BUILDING_IS_PROTECTED);

	const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));

	CommandCost cost(EXPENSES_CONSTRUCTION);
	cost.AddCost(hs->GetRemovalCost());

	int rating = hs->remove_rating_decrease;
	Town *t = Town::GetByTile(tile);

	if (Company::IsValidID(_current_company)) {
		if (!_cheats.magic_bulldozer.value && !flags.Test(DoCommandFlag::NoTestTownRating)) {
			/* NewGRFs can add indestructible houses. */
			if (rating > RATING_MAXIMUM) {
				return CommandCost(STR_ERROR_BUILDING_IS_PROTECTED);
			}
			/* If town authority controls removal, check the company's rating. */
			if (rating > t->ratings[_current_company] && _settings_game.difficulty.town_council_tolerance != TOWN_COUNCIL_PERMISSIVE) {
				return CommandCostWithParam(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS, t->index);
			}
		}
	}

	ChangeTownRating(t, -rating, RATING_HOUSE_MINIMUM, flags);
	if (flags.Test(DoCommandFlag::Execute)) {
		ClearTownHouse(t, tile);
	}

	return cost;
}

static void AddProducedCargo_Town(TileIndex tile, CargoArray &produced)
{