public State(ArrayList<Order> orders, int gScore, Truck truck, State origin) {
this.orders = orders;
this.gScore = gScore;
this.truck = truck;
this.origin = origin;
this.currentNode = truck.getCurrentNode();
this.stateMessage = null;
}
private State pickupAction(Order order) {
ArrayList<Order> orders = new ArrayList<>();
Truck newTruck =
new Truck(
this.truck.getID(),
this.truck.getCurrentNode(),
this.truck.getTruckCapacity(),
this.truck.getOrders());
for (Order tmpOrder : this.orders) {
if (order.getId() == tmpOrder.getId())
orders.add(
new Order(
tmpOrder.getLocation(),
tmpOrder.getDestination(),
true,
false,
null,
tmpOrder.getId(),
tmpOrder.getVolume()));
else
orders.add(
new Order(
tmpOrder.getLocation(),
tmpOrder.getDestination(),
tmpOrder.isPickedUp(),
tmpOrder.isDelivered(),
tmpOrder.getDroppedIn(),
tmpOrder.getId(),
tmpOrder.getVolume()));
}
return new State(
orders,
this.gScore,
newTruck,
this,
"Picked up an order with id "
+ order.getId()
+ ". Node is "
+ newTruck.getCurrentNode().getId());
}
private State deliverAction() {
ArrayList<Order> orders = new ArrayList<>();
Truck newTruck =
new Truck(
this.truck.getID(),
this.truck.getCurrentNode(),
this.truck.getTruckCapacity(),
this.truck.getOrders());
int count = 0;
for (Order order : this.orders)
if (order.getDestination().equals(this.truck.getCurrentNode())
&& !order.isDelivered()
&& order.isPickedUp()) {
orders.add(
new Order(
order.getLocation(),
order.getDestination(),
true,
true,
this.truck.getCurrentNode(),
order.getId(),
order.getVolume()));
count++;
} else
orders.add(
new Order(
order.getLocation(),
order.getDestination(),
order.isPickedUp(),
order.isDelivered(),
order.getDroppedIn(),
order.getId(),
order.getVolume()));
return new State(
orders,
this.gScore,
newTruck,
this,
"Delivered " + String.valueOf(count) + " orders at " + newTruck.getCurrentNode().getId());
}
private State followRouteAction(Road road, Truck truck) {
Node2 finalNode;
ArrayList<Order> orders = new ArrayList<>(this.orders);
if (truck.getCurrentNode().equals(road.getStart())) finalNode = road.getEnd();
else finalNode = road.getStart();
Truck newTruck =
new Truck(
this.truck.getID(), finalNode, this.truck.getTruckCapacity(), this.truck.getOrders());
return new State(
orders,
this.gScore + road.getWeight(),
newTruck,
this,
"Followed road to "
+ newTruck.getCurrentNode().getId()
+ "("
+ newTruck.getCurrentNode().getName()
+ ").");
}
private ArrayList<State> extractPickupTransitions() {
ArrayList<State> states = new ArrayList<>();
int totalVolume = 0;
for (Order order : orders)
if (order.isPickedUp() && !order.isDelivered()) totalVolume += order.getVolume();
if (totalVolume < truck.getTruckCapacity()) {
orders
.stream()
.filter(
order ->
order.getLocation().equals(currentNode)
&& !order.isPickedUp()
&& !order.isDelivered())
.forEach(
order -> {
State pickupState = pickupAction(order);
states.add(pickupState);
});
}
return states;
}