Function CmdOrderRefit

src/order_cmd.cpp:1634–1673

* Add/remove refit orders from an order * @param flags operation to perform * @param veh VehicleIndex of the vehicle having the order * @param order_number number of order to modify * @param cargo CargoType * @return the cost of this operation or an error */

 * @return the cost of this operation or an error
 */
CommandCost CmdOrderRefit(DoCommandFlags flags, VehicleID veh, VehicleOrderID order_number, CargoType cargo)
{
	if (cargo >= NUM_CARGO && cargo != CARGO_NO_REFIT && cargo != CARGO_AUTO_REFIT) return CMD_ERROR;

	const Vehicle *v = Vehicle::GetIfValid(veh);
	if (v == nullptr || !v->IsPrimaryVehicle()) return CMD_ERROR;

	CommandCost ret = CheckOwnership(v->owner);
	if (ret.Failed()) return ret;

	Order *order = v->GetOrder(order_number);
	if (order == nullptr) return CMD_ERROR;

	/* Automatic refit cargo is only supported for goto station orders. */
	if (cargo == CARGO_AUTO_REFIT && !order->IsType(OT_GOTO_STATION)) return CMD_ERROR;

	if (order->GetLoadType() == OrderLoadType::NoLoad) return CMD_ERROR;

	if (flags.Test(DoCommandFlag::Execute)) {
		order->SetRefit(cargo);

		/* Make the depot order an 'always go' order. */
		if (cargo != CARGO_NO_REFIT && order->IsType(OT_GOTO_DEPOT)) {
			order->SetDepotOrderType(order->GetDepotOrderType().Reset(OrderDepotTypeFlag::Service));
			order->SetDepotActionType(order->GetDepotActionType().Reset(OrderDepotActionFlag::Halt));
		}

		for (Vehicle *u = v->FirstShared(); u != nullptr; u = u->NextShared()) {
			/* Update any possible open window of the vehicle */
			InvalidateVehicleOrder(u, VIWD_MODIFY_ORDERS);

			/* If the vehicle already got the current depot set as current order, then update current order as well */
			if (u->cur_real_order_index == order_number && u->current_order.GetDepotOrderType().Test(OrderDepotTypeFlag::PartOfOrders)) {
				u->current_order.SetRefit(cargo);
			}
		}
	}

	return CommandCost();
}


/**