public class rocket extends Actor
{
    int n=0;
    /**
     * Act - do whatever the laser wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
       move(50);
       if(cekmusuh())
       {
           kenarocket();
           
       }
       info();
       nyampeujung();
    }
    
    public boolean cekmusuh()
    {
        Actor musuh = getOneObjectAtOffset(0,0,musuh.class);
        if(musuh!=null)return(true);else return(false);
    }
    
    public void kenarocket(){
            Actor musuh = getOneObjectAtOffset(0,0,musuh.class);
            if(musuh!=null){
                getWorld().removeObject(musuh);
                n++;
        }
    }
    
    public void nyampeujung()
    {
        if(this.isAtEdge())
        {
            getWorld().removeObject(this);
        }
    }
    
    public void info()
    {
        labelhp lhp = new labelhp();
        lhp.setTulisan("n : "+n);
        getWorld().addObject(lhp,110,20);[quote]

public class Player extends Actor
{
    /**
     * Act - do whatever the Player wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    protected int hp = 500;
    private boolean mouseIsDown;
    private int counter,HIT,rockets;
    
    public Player()
    {
        rockets = 25;
        counter = 0;
        // HIT = 0;
        
    }
    
    public void act() 
    {
        if(hp<=0){
            Greenfoot.stop();
            lose();
        }
        tembakrocket();
        kenamusuh();
        kenaboss();
        // info();
        
    }
    
    public void kenamusuh()
    {
       Actor musuh = getOneObjectAtOffset(0,0,musuh.class);
       if(musuh!=null)
       {
           hp=hp-1;
       }
    }
    
    public void kenaboss()
    {
        Actor boss = getOneObjectAtOffset(0,0,boss.class);
        if(boss!=null)
        {
            hp=hp-3;
        }
    }
    
    // public void info()
    // {
        // labelhp lhp = new labelhp();
        // lhp.setTulisan("HP : "+hp);
        // getWorld().addObject(lhp,110,20);
    // }
    
    public void tembakrocket()
    {
        //mendapatkan koordinat kursor, diklik atau tidak, ditekan atau tidaknya klik kiri atau klik kanan
        MouseInfo mouse = Greenfoot.getMouseInfo();
        if(Greenfoot.mousePressed(null)){mouseIsDown = true;}
        else if (Greenfoot.mouseClicked(null)){mouseIsDown = false;}
        
        if(mouseIsDown){
            if(counter >= rockets){
                //mengeluarkan rocket sesuai mouse info
                rocket rc = new rocket();
                getWorld().addObject(rc, getX(), getY()-10);
                
                //player mengikuti koordinat dari kursor
                if(mouse!=null){rc.turnTowards(mouse.getX(), mouse.getY());}
                rc.move(0);
                counter = 0;
            }
        }
        counter++; //jeda rocket yang keluar
        // if(HIT>0){HIT--;}
    }
    
    public void lose()
    {
        getWorld().showText("========= YOU LOSE =========", 500, 500);
    }[/quote]
[code]
{
    /**
     * Act - do whatever the musuh wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    // private boolean klik=true;

    public class musuh extends Actor
    
    public void act() 
    {
       move();
       tembakdibase();
      
    }
    
    public void tembakdibase()
    {
       if(Greenfoot.mousePressed(this))
       {
           getWorld().removeObject(this);
       }
       
    }
    
    public void move(){
        musuh m = new musuh();
        int x = ((Player)getWorld().getObjects(Player.class).get(0)).getX();
        int y = ((Player)getWorld().getObjects(Player.class).get(0)).getY();
        turnTowards(x,y);
        move(3);
    }

}