Function CheckAircraftOrderDistance

src/order_cmd.cpp:1463–1487

* Check if an aircraft has enough range for an order list. * @param v_new Aircraft to check. * @param v_order Vehicle currently holding the order list. * @param first First order in the source order list. * @return True if the aircraft has enough range for the orders, false otherwise. */

 * @return True if the aircraft has enough range for the orders, false otherwise.
 */
static bool CheckAircraftOrderDistance(const Aircraft *v_new, const Vehicle *v_order)
{
	if (v_new->acache.cached_max_range == 0) return true;
	if (v_order->GetNumOrders() == 0) return true;

	const OrderList &orderlist = *v_order->orders;
	auto orders = orderlist.GetOrders();

	/* Iterate over all orders to check the distance between all
	 * 'goto' orders and their respective next order (of any type). */
	for (VehicleOrderID cur = 0; cur < orderlist.GetNumOrders(); ++cur) {
		switch (orders[cur].GetType()) {
			case OT_GOTO_STATION:
			case OT_GOTO_DEPOT:
			case OT_GOTO_WAYPOINT:
				/* If we don't have a next order, we've reached the end and must check the first order instead. */
				if (GetOrderDistance(cur, orderlist.GetNext(cur), v_order) > v_new->acache.cached_max_range_sqr) return false;
				break;

			default: break;
		}
	}

	return true;
}

/**
 * Clone/share/copy an order-list of another vehicle.