import greenfoot.*; /** * This class defines a crab. Crabs live on the beach. */ public class Crab extends Actor { public void act() { if ( isAtEdge() ) { turn(17); } if ( Greenfoot.getRandomNumber(100) < 10 ) { turn(Greenfoot.getRandomNumber(90)-45); } move(5); lookForWorm(); } /** * check whether we have stumbled upon a worm. * If we have, eat it. If not, do nothing */ public void lookForWorm() { if ( isTouching(Worm.class) ) { removeTouching(Worm.class); } }