Function CmdMoveStationName

src/station_cmd.cpp:4502–4532

* Move a station name. * @param flags type of operation * @param station_id id of the station * @param tile to move the station name to * @return the cost of this operation or an error and the station ID */

 * @return the cost of this operation or an error and the station ID
 */
std::tuple<CommandCost, StationID> CmdMoveStationName(DoCommandFlags flags, StationID station_id, TileIndex tile)
{
	Station *st = Station::GetIfValid(station_id);
	if (st == nullptr) return { CMD_ERROR, StationID::Invalid() };

	if (st->owner != OWNER_NONE) {
		CommandCost ret = CheckOwnership(st->owner);
		if (ret.Failed()) return { ret, StationID::Invalid() };
	}

	const StationRect *r = &st->rect;
	if (!r->PtInExtendedRect(TileX(tile), TileY(tile))) {
		return { CommandCost(STR_ERROR_SITE_UNSUITABLE), StationID::Invalid() };
	}

	bool other_station = false;
	/* Check if the tile is the base tile of another station */
	ForAllStationsRadius(tile, 0, [&](BaseStation *s) {
		if (s != nullptr) {
			if (s != st && s->xy == tile) other_station = true;
		}
	});
	if (other_station) return { CommandCost(STR_ERROR_SITE_UNSUITABLE), StationID::Invalid() };

	if (flags.Test(DoCommandFlag::Execute)) {
		st->MoveSign(tile);

		st->UpdateVirtCoord();
	}
	return { CommandCost(), station_id };
}

/**
* Callback function that is called after a name is moved