anchor.diff:  
     document.onTouchMove.listen((TouchEvent e) {
       List<Touch> points = e.touches.toList();
  -    if(points.length > 0) {
  +    if (points.length > 0) {
         mouseX = points.last.client.x;
         mouseY = points.last.client.y;
         school.forEach((Fish fish) => fish.setBait(mouseX, mouseY));
  
positive.code:     ..classes.add('abs')
      ..src = "media/fish_right.png"
      ..style.left = '${x}px'
      ..style.top = '${y}px'
      ..onClick.listen((e) {
        window.location.href =
            'https://upload.wikimedia.org/wikipedia/commons/c/c3/Bludger_(fish).png';
      });
    document.body.querySelector('#sea').children.add(fish);
    Fish egg = new Fish(
        fish,
  
negative.code: 
  void main() {
    school = [];
    count = querySelector('#count')
      ..text = school.length.toString()
      ..onClick.listen((e) {
        window.location.href =
            'https://upload.wikimedia.org/wikipedia/commons/c/c3/Bludger_(fish).png';
      });
  
    // Set the bait the current mouse location
    document.onMouseMove.listen((MouseEvent e) {
  