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.
}
}
