Method GetOrderDestination

src/script/api/script_order.cpp:241–299

static */

}

/* static */ TileIndex ScriptOrder::GetOrderDestination(VehicleID vehicle_id, OrderPosition order_position)
{
	if (!IsValidVehicleOrder(vehicle_id, order_position)) return INVALID_TILE;

	const Order *order = ::ResolveOrder(vehicle_id, order_position);
	if (order == nullptr || order->GetType() == OT_CONDITIONAL) return INVALID_TILE;
	const Vehicle *v = ::Vehicle::Get(vehicle_id);

	switch (order->GetType()) {
		case OT_GOTO_DEPOT: {
			/* We don't know where the nearest depot is... (yet) */
			if (order->GetDepotActionType().Test(OrderDepotActionFlag::NearestDepot)) return INVALID_TILE;

			if (v->type != VEH_AIRCRAFT) return ::Depot::Get(order->GetDestination().ToDepotID())->xy;
			/* Aircraft's hangars are referenced by StationID, not DepotID */
			const Station *st = ::Station::Get(order->GetDestination().ToStationID());
			if (!st->airport.HasHangar()) return INVALID_TILE;
			return st->airport.GetHangarTile(0);
		}

		case OT_GOTO_STATION: {
			const Station *st = ::Station::Get(order->GetDestination().ToStationID());
			if (st->train_station.tile != INVALID_TILE) {
				for (TileIndex t : st->train_station) {
					if (st->TileBelongsToRailStation(t)) return t;
				}
			} else if (st->ship_station.tile != INVALID_TILE) {
				for (TileIndex t : st->ship_station) {
					if (IsTileType(t, MP_STATION) && (IsDock(t) || IsOilRig(t)) && GetStationIndex(t) == st->index) return t;
				}
			} else if (st->bus_stops != nullptr) {
				return st->bus_stops->xy;
			} else if (st->truck_stops != nullptr) {
				return st->truck_stops->xy;
			} else if (st->airport.tile != INVALID_TILE) {
				for (TileIndex tile : st->airport) {
					if (st->TileBelongsToAirport(tile) && !::IsHangar(tile)) return tile;
				}
			}
			return INVALID_TILE;
		}

		case OT_GOTO_WAYPOINT: {
			const Waypoint *wp = ::Waypoint::Get(order->GetDestination().ToStationID());
			if (wp->train_station.tile != INVALID_TILE) {
				for (TileIndex t : wp->train_station) {
					if (wp->TileBelongsToRailStation(t)) return t;
				}
			} else if (wp->road_waypoint_area.tile != INVALID_TILE) {
				for (TileIndex t : wp->road_waypoint_area) {
					if (::IsRoadWaypointTile(t) && ::GetStationIndex(t) == wp->index) return t;
				}
			}
			/* If the waypoint has no rail or road waypoint tiles, it must have a buoy */
			return wp->xy;
		}
		default:               return INVALID_TILE;
	}