the counter in the crab class is a countdown clock which is a different thing and is working well.
here is my crab class:
i appreciate all your help!
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo) /** * Write a description of class Crab here. * * @author (your name) * @version (a version number or a date) */ public class Crab extends Animals { /** * Act - do whatever the Crab wants to do. This method is called whenever * the 'Act' or 'Run' button gets pressed in the environment. */ private Counter counter; public Crab(Counter pointCounter) { counter = pointCounter; } public void act() { moveAndTurn(); eatWorm(); } private void moveAndTurn() { if (Greenfoot.isKeyDown ("space")) move (4); if (Greenfoot.isKeyDown ("right")) turn (3); if (Greenfoot.isKeyDown ("left")) turn (-3); } private void eatWorm() { Actor Worm; Worm = getOneObjectAtOffset (0,0,Worm.class); if(Worm != null) { int x = Greenfoot.getRandomNumber(getWorld().getWidth()); int y = Greenfoot.getRandomNumber(getWorld().getHeight()); Worm.setLocation(x, y); counter.add(1); Greenfoot.playSound ("eating.wav"); } Actor RedWorm; RedWorm = getOneObjectAtOffset (0,0,RedWorm.class); if (RedWorm != null) { World world; world = getWorld (); world.removeObject (RedWorm); counter.add(5); Greenfoot.playSound ("eating.wav"); } if (counter.getValue () == 50) { Greenfoot.stop(); Greenfoot.playSound ("fanfare.wav"); getWorld().addObject(new GameWon(), getWorld().getWidth()/2, getWorld().getHeight()/2); } } }