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 checkBetWeenTwoMarkers() {
if (alive) // check if the object alive
{
DeepSpace myDeepSpace = (DeepSpace) getWorld(); // get referance to the DeepSpace Class
if (getX() == 799
&& getY() > myDeepSpace.getExitMarkerTop()
&& myDeepSpace.getExitMarkerBottom()
> getY()) // check that if we are right side of the world and between two markers than
// do following
{
setImage("balloon2.png"); // set the baloon image
baloonCount--; // start counting. we do these because it simulates the baloon picture for
// little time for the user.
if (baloonCount
< 1) // if little time passed over than remove the object from the world and call the
// greenfooot stop method.
{
getWorld().removeObject(this);
return;
// Greenfoot.stop();
}
}
if ((getX() == 799 && 0 < getY() && getY() < myDeepSpace.getExitMarkerTop())
|| (getX() == 799 && 600 > getY() && getY() > myDeepSpace.getExitMarkerBottom()))
// if the ship between top of the right corner and top marker than do fallowing OR if the
// ship between bottom of the right corner and bottom marker than do fallowing
{
setImage(
"explosion.gif"); // set the image as Explosion in order to simulate explosion for the
// user.
baloonCount--; // increase the baloonCount variable in order to slowly remove the object
// from the world
if (baloonCount < 1) // if little time has passed than remove the obejct.
{
getWorld().removeObject(this);
return; // leave the function.
// Greenfoot.stop();
}
}
}
}