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Semester 1/Programming 1/Java/examples/projects/chapter16/taxi-company-outline/Shuttle.java

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+import java.util.List;
+import java.util.LinkedList;
+    
+/**
+ * A shuttle is able to carry multiple passengers.
+ * 
+ * @author David J. Barnes and Michael Kölling
+ * @version 2016.02.29
+ */
+public class Shuttle extends Vehicle
+{
+    // The list of destinations for the shuttle.
+    private List<Location> destinations;
+    // The list of passengers on the shuttle.
+    private List<Passenger> passengers;
+
+    /**
+     * Constructor for objects of class Shuttle
+     * @param company The taxi company. Must not be null.
+     * @param location The vehicle's starting point. Must not be null.
+     * @throws NullPointerException If company or location is null.
+     */
+    public Shuttle(TaxiCompany company, Location location)
+    {
+        super(company, location);
+        destinations = new LinkedList<>();
+        passengers = new LinkedList<>();
+    }
+
+    /**
+     * Is the shuttle free?
+     * @return Whether or not this vehicle is free.
+     */
+    public boolean isFree()
+    {
+        return true;
+    }
+    
+    /**
+     * Receive a pickup location.
+     * @param location The pickup location.
+     */
+    public void setPickupLocation(Location location)
+    {
+        destinations.add(location);
+        chooseTargetLocation();
+    }
+    
+    /**
+     * Receive a passenger.
+     * Add their destination to the list.
+     * @param passenger The passenger being picked up.
+     */
+    public void pickup(Passenger passenger)
+    {
+        passengers.add(passenger);
+        destinations.add(passenger.getDestination());
+        chooseTargetLocation();
+    }
+
+    /**
+     * Decide where to go next, based on the list of
+     * possible destinations.
+     */
+    private void chooseTargetLocation()
+    {
+    }
+
+    /**
+     * Offload a passenger whose destination is the
+     * current location.
+     */
+    public void offloadPassenger()
+    {
+    }
+}