import greenfoot.*;  



| Counter that displays some taxt and a number.
|
| @author Michael Kölling
| @version 1.1
|
public class Counter
extends Actor
{    
private int value = 0;
    private String text;

    


| Create a counter without a text prefix, initialized to zero.
|
public Counter()
    {
        this("");
    }

    


| Create a counter with a given text prefix, initialized to zero.
|
public Counter(String prefix)
    {
        text = prefix;
        int imageWidth= (text.length() + 2) * 10;
        setImage(new GreenfootImage(imageWidth, 16));
        updateImage();
    }

    


| Increment the counter value by one.
|
public void increment()
    {
        value++;
        updateImage();
    }

    


| Show the current text and count on this actor's image.
|
private void updateImage()
    {
        GreenfootImage image = getImage();
        image.clear();
        image.drawString(text + value, 1, 12);
    }
}