import greenfoot.*;

/**
 * This class defines a crab. Crabs live on the beach.
 */
public class Crab extends Actor
{
    public void act()
    {
        move(10);
        turnAtEdge();
        control();
    }
    public void turnAtEdge() {
        if(isAtEdge())
        {
            turn(45);
        }
    }
    public void control()
    {
        if(Greenfoot.isKeyDown("left")){
            turn(30);
        }
        if(Greenfoot.isKeyDown("right")){
            turn(-30);
        }
    }
    
}