Function InsertOrder

src/order_cmd.cpp:847–910

* Insert a new order but skip the validation. * @param v The vehicle to insert the order to. * @param new_o The new order. * @param sel_ord The position the order should be inserted at. */

 * @param sel_ord The position the order should be inserted at.
 */
void InsertOrder(Vehicle *v, Order &&new_o, VehicleOrderID sel_ord)
{
	/* Create new order and link in list */
	if (v->orders == nullptr) {
		v->orders = new OrderList(std::move(new_o), v);
	} else {
		v->orders->InsertOrderAt(std::move(new_o), sel_ord);
	}

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

		/* If there is added an order before the current one, we need
		 * to update the selected order. We do not change implicit/real order indices though.
		 * If the new order is between the current implicit order and real order, the implicit order will
		 * later skip the inserted order. */
		if (sel_ord <= u->cur_real_order_index) {
			uint cur = u->cur_real_order_index + 1;
			/* Check if we don't go out of bound */
			if (cur < u->GetNumOrders()) {
				u->cur_real_order_index = cur;
			}
		}
		if (sel_ord == u->cur_implicit_order_index && u->IsGroundVehicle()) {
			/* We are inserting an order just before the current implicit order.
			 * We do not know whether we will reach current implicit or the newly inserted order first.
			 * So, disable creation of implicit orders until we are on track again. */
			uint16_t &gv_flags = u->GetGroundVehicleFlags();
			SetBit(gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
		}
		if (sel_ord <= u->cur_implicit_order_index) {
			uint cur = u->cur_implicit_order_index + 1;
			/* Check if we don't go out of bound */
			if (cur < u->GetNumOrders()) {
				u->cur_implicit_order_index = cur;
			}
		}
		/* Unbunching data is no longer valid. */
		u->ResetDepotUnbunching();

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

	/* As we insert 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.SetConditionSkipToOrder(order_id + 1);
			}
			if (order_id == cur_order_id) {
				order.SetConditionSkipToOrder((order_id + 1) % v->GetNumOrders());
			}
		}