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


/**
 * Write a description of class Counter here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Counter extends Actor
{
   private static int score;
   public static int level;
  
    /**
     * Act - do whatever the Counter wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
   {
      setImage(new GreenfootImage("Score: "+ score,24, Color.RED, Color.BLACK)); 
      // this sets the image to say Score but then add what ever the score is so it may look like this Score:10 and at the start it looks like Score:0
       
   }

   public void addScore()
    {
        score++;
        // this code adds a score of 1 each time an Rock is killed
        if (score == 3
        // need to make a level varible
        ){
          Greenfoot.setWorld(new L2());
          level=1;
          score= 4;
          
          // This code changes the back ground to level 2 when 3 points are scored
        } 
      
        if (score == 20){
          Greenfoot.setWorld(new L3());
          level =2;
          score=21;
          //This code changes the back ground to level 3 when 20 points are scored 
         }  
        
        if (score == 30){
          Greenfoot.setWorld(new Finished());
          score=0;
          //This code changes the back ground to the finished screen when 30 points are scored
         }
       
    }

     public void reset() 
   {
        score =0;
   }
   
}

public Counter()
{
    update();
}