private static void drawSpring(final Graphics g,final int x,final int y,final int height){
    for(int _y=y;_y<y+height-1;_y+=SPRING_PRERIOD){
      drawSpringPeriod(g,x,_y);
    }
  }
private static void drawSpring(final Graphics g,final int x,final int y,final int height)