public void sinkItself(){
        
        switch(steps){
            
            case 0:{
                setImageIcon(blowup1);
                steps++;
                break;
            }
            case 1:{
                setImageIcon(blowup2);
                steps++;
                break;
            }
            case 2:{
                sunk = true;
            }
            
        }// end switch
        
    }