Function CanRemoveRoadWithStop

src/station_cmd.cpp:4869–4896

* Check if a drive-through road stop tile can be cleared. * Road stops built on town-owned roads check the conditions * that would allow clearing of the original road. * @param tile The road stop tile to check. * @param flags Command flags. * @return A succeeded command if the road can be removed, a failed command with the relevant error message otherwise. */

 * @return A succeeded command if the road can be removed, a failed command with the relevant error message otherwise.
 */
static CommandCost CanRemoveRoadWithStop(TileIndex tile, DoCommandFlags flags)
{
	/* Water flooding can always clear road stops. */
	if (_current_company == OWNER_WATER) return CommandCost();

	CommandCost ret;

	if (GetRoadTypeTram(tile) != INVALID_ROADTYPE) {
		Owner tram_owner = GetRoadOwner(tile, RTT_TRAM);
		if (tram_owner != OWNER_NONE) {
			ret = CheckOwnership(tram_owner);
			if (ret.Failed()) return ret;
		}
	}

	if (GetRoadTypeRoad(tile) != INVALID_ROADTYPE) {
		Owner road_owner = GetRoadOwner(tile, RTT_ROAD);
		if (road_owner == OWNER_TOWN) {
			ret = CheckAllowRemoveRoad(tile, GetAnyRoadBits(tile, RTT_ROAD), OWNER_TOWN, RTT_ROAD, flags);
			if (ret.Failed()) return ret;
		} else if (road_owner != OWNER_NONE) {
			ret = CheckOwnership(road_owner);
			if (ret.Failed()) return ret;
		}
	}

	return CommandCost();
}

/**
 * Clear a single tile of a station.