import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
import java.awt.Color;

/**
 * Chocolate Dispenser Machine
 * @version 1.0
 */
public class FiftyPence extends Money
{
    private int n = 50;  
    private long markTime = 0;
    GreenfootImage image = null;  

    public FiftyPence()  
    {  
        image = new GreenfootImage(getImage());  
    }  

    public void act()   
    {  
        if (markTime == 0 && Greenfoot.mouseClicked(this))  
        {  
            setLocation(517, 314);  
            credit(); 
            markTime = System.currentTimeMillis();  
        }  

        if (markTime != 0 && System.currentTimeMillis() - markTime > 1000)  
        {  
            markTime = 0;  
            setLocation(555, 453);  
            setImage(new GreenfootImage(image));  
        }  
    }  

    private void credit()
    {
        GreenfootImage img = getImage();
        img.setColor(Color.BLUE);
        img.drawString("Credit: " + n, 593, 252);
    }
}

public class Message extends Actor
{
    /**
     *  
     * 
     */
    public void act()
    {
        //
    }
    
    public Message(String text)  
    {  
        updateImage(text);  
    }  
  
    private void updateImage(String message)  
    {  
        setImage(new GreenfootImage(message, 20, Color.BLUE, new Color(0, 0, 0, 0)));  
    }  
  
    public void setText(String text)  
    {  
        updateImage(text);  
    }  
}