Snake Game

 private void addSnakeBody()
    
    {
         int currX = getX(); //get current x co-ordinate
         int currY = getY(); // get current y co-ordinate 
         
         getWorld().addObject(new SnakeBody(), currX-offsetX, currY-offsetY); //add SnakeBody at location of SnakeHead
         
         }

 private void growSnake()
    {
         int offsetX=0;
         int offsetY=0;
         
         int currX = getX(); //get current x co-ordinate
         int currY = getY(); // get current y co-ordinate 
         
         List getSnakeHead=getWorld().getObjects(SnakeHead.class); //get the SnakeHead actor from the world.
         if(!getSnakeHead.isEmpty  ()) //if there is no SnakeHead
         {
            SnakeHead thisSnakeHead=(SnakeHead)getSnakeHead.get(0); //is there a SnakeHead in the current location?
            offsetX=thisSnakeHead.offsetX; //the x co-ordinate of SnakeHead
            offsetY=thisSnakeHead.offsetY; //the y co-ordinate of SnakeHead
        }
        setLocation(currX+offsetX, currY+offsetY); //
    }