GameOver

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

public class MyWorld extends World
{ 
     
    public MyWorld()
    {    
        // Create a new world with 600x400 cells with a cell size of 1x1 pixels.
        super(600, 400, 1, false);   
        prepare();   
        
         
          
         
    } 
    public void act() 
    {  
       Switchscreen();
       if(Greenfoot.getRandomNumber(20)<1) 
       {
       addMeteor();  
       } 
       
        
    }  
    public void addMeteor() 
    { 
     addObject(new Meteors(),getWidth()-1,Greenfoot.getRandomNumber(getHeight()));
    }
    private void prepare() 
    {  
        Rocket Rocket = new Rocket(); 
        addObject(Rocket, 100,200); 
        Rocket.setLocation(70,200);  
        
    } 
    public void Switchscreen() 
 { 
     boolean noRockets = getObjects(Rocket.class).isEmpty(); 
     if (noRockets == true) 
     { 
        Greenfoot.setWorld(new Playagain()); 
 
 
   } 
}
}