Setting Boundaries for falling object game

Posted 22 February 2012 - 05:55 PM

Im currently in the process of creating a falling object game, where the player has to land the object in a certain position on the image at the bottom of the pane.

The planet surface image has a position where the object is safe to land. If the object lands anywhere else on that image, a JMessagePane will show that the mission has failed.

This is the code I Have allready which stops the object leaving the pane its held within:

public void run() {
    jPanel1.requestFocus();
    x = (int) p.getX();
    y = (int) p.getY();

    while (true) {
       lblShip.setLocation(x, y);
        y += sldSpeed.getValue();
        
        if (x > 670){
            x = 670;
        }
        if (y > 450){
            y = 450;
        }
        if (x < 0){
            x = 0;
        }
        try{
            Thread.sleep(100);
        } catch (InterruptedException e){
        }

Is there anyway that the object can have a preset landing area?

Anywhere else which it lands on the image will give a JMessagePane telling the player the mission has failed.