import greenfoot.*;  
/**
 * This class defines a crab. Crabs live on the beach. They like sand worms 
 */
public class Crab extends Animal
{   private GreenfootImage image1;
    private GreenfootImage image2;
    private int wormsEaten;
  
    public Crab()
    {   image1 = new GreenfootImage("crab.png");
        image2 = new GreenfootImage("crab2.png");
        setImage(image1);
        wormsEaten = 0;
    }
    public void act()
    {   checkKeypress();
        move()
        lookForWorm();
    } 
    public void switchImage()
    {   if (getImage() == image1) 
        {   setImage(image2);
        
        else
        {   setImage(image1);
        }
    }
    public void checkKeypress()
    {
        if (Greenfoot.isKeyDown("left")) 
        {   turn(-4);
        }
        if (Greenfoot.isKeyDown("right")) 
        {   turn(4);
        }
    }
    public void lookForWorm()
    {   if ( canSee(Worm.class) ) 
        {   eat(Worm.class);
            Greenfoot.playSound("slurp.wav"); 
            wormEaten = wormsEaten + 1;
            if (wormsEaten == 8) 
            {   Greenfoot.playSound("fanfare.wav");
                Greenfoot.stop();
            }
        }
    }