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(svn r22333) -Change: Prefer deleting automatic orders instead of inserting new ones.

release/1.2
frosch 2011-04-16 17:20:08 +00:00
parent 74069dbda3
commit 204a6b16c3
1 changed files with 43 additions and 1 deletions
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44
src/vehicle.cpp
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@ -1870,7 +1870,49 @@ void Vehicle::BeginLoading()
(!prev_order->IsType(OT_AUTOMATIC) && !prev_order->IsType(OT_GOTO_STATION)) ||
prev_order->GetDestination() != this->last_station_visited) {
if (!suppress_automatic_orders && this->orders.list->GetNumOrders() < MAX_VEH_ORDER_ID && Order::CanAllocateItem()) {
/* Prefer deleting automatic orders instead of inserting new ones,
* so test whether the right order follows later */
int target_index = this->cur_auto_order_index;
bool found = false;
while (target_index != this->cur_real_order_index) {
const Order *order = this->GetOrder(target_index);
if (order->IsType(OT_AUTOMATIC) && order->GetDestination() == this->last_station_visited) {
found = true;
break;
}
target_index++;
if (target_index >= this->orders.list->GetNumOrders()) target_index = 0;
assert(target_index != this->cur_auto_order_index); // infinite loop?
}
if (found) {
if (suppress_automatic_orders) {
/* Skip to the found order */
this->cur_auto_order_index = target_index;
InvalidateVehicleOrder(this, 0);
} else {
/* Delete all automatic orders up to the station we just reached */
const Order *order = this->GetOrder(this->cur_auto_order_index);
while (!order->IsType(OT_AUTOMATIC) || order->GetDestination() != this->last_station_visited) {
if (order->IsType(OT_AUTOMATIC)) {
/* Delete order effectively deletes order, so get the next before deleting it. */
order = order->next;
DeleteOrder(this, this->cur_auto_order_index);
} else {
/* Skip non-automatic orders, e.g. service-orders */
order = order->next;
this->cur_auto_order_index++;
}
/* Wrap around */
if (order == NULL) {
order = this->GetOrder(0);
this->cur_auto_order_index = 0;
}
assert(order != NULL);
}
}
} else if (!suppress_automatic_orders && this->orders.list->GetNumOrders() < MAX_VEH_ORDER_ID && Order::CanAllocateItem()) {
/* Insert new automatic order */
Order *auto_order = new Order();
auto_order->MakeAutomatic(this->last_station_visited);