!7

sS imageID = #1006973;
static int width = 200;

module MouseHeart > DynEnabled {
  transient JWindow w;
  transient java.util.Timer timer;
  
  //*() { enabled = false; }
  
  start { update(); }
  
  void cleanMeUp { disposeWindow(w); }
  
  void update {
    print("update " + enabled);
    if (!enabled) {
      setVisible(w, false);
      cancelTimer(timer); timer = null;
      ret;
    }
    
    if (w == null) {
      BufferedImage img = loadBufferedImage(imageID);
      BufferedImage resized = resizeImage(img, width);
      w = showAnimation(resized);
      final Shape shape = scaleShape(alphaToShape(img), width/(double) img.getWidth());
      swing { w.setShape(shape); }
    }
    
    setVisible(w, true);
  
    if (timer == null) timer = doEvery(20, r {
      setLocation(w, mouseX()+2, mouseY()+2)
    });
  }
}

Began life as a copy of #1006974