Function DeleteOrder

src/order_cmd.cpp:972–1027

* Delete an order but skip the parameter validation. * @param v The vehicle to delete the order from. * @param sel_ord The id of the order to be deleted. */

 * @param sel_ord The id of the order to be deleted.
 */
void DeleteOrder(Vehicle *v, VehicleOrderID sel_ord)
{
	v->orders->DeleteOrderAt(sel_ord);

	Vehicle *u = v->FirstShared();
	DeleteOrderWarnings(u);
	for (; u != nullptr; u = u->NextShared()) {
		assert(v->orders == u->orders);

		if (sel_ord == u->cur_real_order_index && u->current_order.IsType(OT_LOADING)) {
			CancelLoadingDueToDeletedOrder(u);
		}

		if (sel_ord < u->cur_real_order_index) {
			u->cur_real_order_index--;
		} else if (sel_ord == u->cur_real_order_index) {
			u->UpdateRealOrderIndex();
		}

		if (sel_ord < u->cur_implicit_order_index) {
			u->cur_implicit_order_index--;
		} else if (sel_ord == u->cur_implicit_order_index) {
			/* Make sure the index is valid */
			if (u->cur_implicit_order_index >= u->GetNumOrders()) u->cur_implicit_order_index = 0;

			/* Skip non-implicit orders for the implicit-order-index (e.g. if the current implicit order was deleted */
			while (u->cur_implicit_order_index != u->cur_real_order_index && !u->GetOrder(u->cur_implicit_order_index)->IsType(OT_IMPLICIT)) {
				u->cur_implicit_order_index++;
				if (u->cur_implicit_order_index >= u->GetNumOrders()) u->cur_implicit_order_index = 0;
			}
		}
		/* Unbunching data is no longer valid. */
		u->ResetDepotUnbunching();

		/* Update any possible open window of the vehicle */
		InvalidateVehicleOrder(u, sel_ord | (INVALID_VEH_ORDER_ID << 8));
	}

	/* As we delete an order, the order to skip to will be 'wrong'. */
	VehicleOrderID cur_order_id = 0;
	for (Order &order : v->Orders()) {
		if (order.IsType(OT_CONDITIONAL)) {
			VehicleOrderID order_id = order.GetConditionSkipToOrder();
			if (order_id >= sel_ord) {
				order_id = std::max(order_id - 1, 0);
			}
			if (order_id == cur_order_id) {
				order_id = (order_id + 1) % v->GetNumOrders();
			}
			order.SetConditionSkipToOrder(order_id);
		}
		cur_order_id++;
	}

	InvalidateWindowClassesData(GetWindowClassForVehicleType(v->type), 0);
}

/**