public void
checkTPress() // this method whether T key is being pressed o not and move the object
// according do following.
{
if (alive) // check if the ship alive
{
DeepSpace myDeepSpace = (DeepSpace) getWorld(); // get referance to the DeepSpace class
FuelTank myFuelTank =
myDeepSpace
.myFuelTank(); // use myFuelTank method that return reference of FuelTank class. So
// you can call method of Fueltank class.
if (Greenfoot.isKeyDown("t")
&& !myFuelTank
.empty()) // if "t" key is being pressed by user and if i have enough fuel, do
// following.
{
move(3); // move forward direction of object
setImage("rocket.png"); // set the image rocket that seems like burning fuel.
myFuelTank
.burn(); // call the Fueltank class method in order to decrese level of fuel on screen
} else
setImage("rocket_noThrust.png"); // if no key is being press than set the regular picture.
}
}
public void useReserve() {
if (reserves >= 1) {
if (tank.isEmpty()) {
dead = false;
}
tank.setFuelLevel(tank.getFuelCapacity());
reserves--;
}
}
public void move(int distance, Direction direction) {
if (!dead) {
move(distance, direction, true);
if (tank.isEmpty()) {
dead = true;
notifyPropertyChangeListeners(new PropertyChangeEvent(this, "dead", false, true));
}
}
}
public void move(int distance, Direction direction, boolean useFuel) {
switch (direction) {
case UP:
location.y -= distance;
break;
case DOWN:
location.y += distance;
break;
case LEFT:
location.x -= distance;
break;
case RIGHT:
location.x += distance;
break;
default:
assert false : "Bad direction: " + location;
}
if (useFuel) tank.useFuel(1);
}
/** Example. */
@Test
public void example() {
double dblReserve = TankSize.RESERVE.size() * 2.0; // RESERVE size is set to 1600
FuelTank largeReserve = new FuelTank(dblReserve);
FuelTank tripleReserve = new FuelTank(TankSize.RESERVE.multi(3));
FuelTank normalReserve = new FuelTank(TankSize.RESERVE);
FuelTank miniTank = new FuelTank(2); // 2 Gallon tank
FuelTank fiveGalTank = new FuelTank(5);
FuelTank largeFuelTank = new FuelTank(TankSize.LARGE);
Airplane smallPlane =
new Airplane(
new Random().nextInt(),
Airline.AAL,
largeFuelTank,
AirplaneState.WAITINHANGAR,
Airline.AAL.getHangar());
Airplane p1 = new Airplane();
p1.setId(1);
p1.setOwner(Airline.getRandom());
p1.setTank(new FuelTank(new Random().nextGaussian() * 100));
p1.setHolder(p1.getOwner().getHangar());
/**
* //How a taxi would be created Taxi t1 = new Taxi(new Random().nextInt(), null, new
* FuelTank(TankSize.SMALL.multi((new Random().nextGaussian()*.5))), VehicleState.WAITING,
* Taxiway.A); Taxi t2 = new Taxi(); t2.setId(2); t2.setOwner(Airport.AUS); t2.setTank(new
* FuelTank(new Random().nextGaussian()*15)); t2.setHolder(t2.getOwner().chooseTaxiway());
*/
/*
* All Tanks are empty, you must either fill() or add(Fuel f)
* Vehicles can refuel() although this fills to FULL not MAX
*/
try {
tripleReserve.fill(); // Magically fill tank to capacity
largeReserve.fill(tripleReserve); // Fill tank from source
normalReserve.fill(tripleReserve);
} catch (FuelTankException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
assert (tripleReserve.isEmpty());
assert (largeReserve.isFull());
assert (normalReserve.isFull());
}
try {
largeFuelTank.fill(normalReserve);
fiveGalTank.fill(largeFuelTank);
miniTank.fill(largeFuelTank);
smallPlane.getTank().fill(largeFuelTank);
} catch (FuelTankException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
assert (!largeFuelTank.isEmpty());
assert (!normalReserve.isEmpty());
assert (miniTank.isFull());
assert (smallPlane.getTank().isFull());
}
}
public void refuel(int fuel) {
tank.refuel(fuel);
if (!tank.isEmpty()) {
setDead(false);
}
}
