isAtEdge not working

public class Reload extends Actor
{
    
    /**
     * Act - do whatever the Reload wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
     public static int pocet = 0;
    public Reload()
    {
        GreenfootImage image = getImage();
        image.scale(image.getWidth() +25, image.getHeight() + 25);
        setImage(image);
    }
    public void act()
    {
    if (Coin.type == 1)
    {
        lod();
    }
    if (Coin.type == 2)
    {
        lod2();
    }
    if (Coin.type == 3)
    {
        lod3();
    }
    if (isAtEdge())
    {
        getWorld().removeObject(this);
    }
   
    move(-2);
    
    }
    public void delete()
    {
        if(isAtEdge())
         {
             getWorld().removeObject(this);
         }
    }
    public void lod()
    {
         if (isTouching(Lod.class))
    {
      getWorld().removeObject(this); 
     
      
     }
    }
    public void lod2()
    {
        if (isTouching(Lod2.class))
    {
      getWorld().removeObject(this); 
       
      
     }
    }
    public void lod3()
    {
        if (isTouching(Lod3.class))
    {
      getWorld().removeObject(this); 
        
     
     }
    }
    
}