package NGPdemos;

/**
 * AlienTimer.java
 *
 *
 * Created: Tue Feb 20 14:42:33 2001
 *
 * @author Brown U. lecture notes modified by Stuart C. Shapiro
 */

public class AlienTimer extends NGP.Timer{
    /* associated with a generic AlienShape (polymorphism!) */
    private AlienShape _myAlien;

    public AlienTimer (AlienShape myAlien){
	super(100); // this timer will call activate every 100 ms
	_myAlien = myAlien;
	
    }

    /**
     * Each time this method is called, the
     * AlienShape that's associated with this
     * instance will move 5 pixels to the right
     * and 10 pixels up.
     */
    public void activate() {
	_myAlien.moveToPosition(new
	    java.awt.Point(_myAlien.getLocation().x + 5,
			   _myAlien.getLocation().y - 10));
    }
}// AlienTimer