public class Ant extends Actor
{
    private double xSpeed;
    private double ySpeed;
    
    private int goodCalorie;
    private int badCalorie;
    
    private double exactX;
    private double exactY;
    
    public Ant (double xSpeed, double ySpeed)
    {
        goodCalorie = 200;
        badCalorie = 100;
        this.xSpeed = xSpeed;
        this.ySpeed = ySpeed;
    }
    protected void addedToWorld (World myWorld)
    {
        exactX = getX();
        exactY = getY();
    }
    /**
     * Act - do whatever the Ant wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        exactX += xSpeed;
        exactY += ySpeed;
        setLocation ( (int) exactX, (int) exactY );
        if (isAtEdge()) 
        {
            setLocation( (int) exactX, (int) exactY );
        } 
        }
    }