handlerPointerUp method
Implementation
@override
void handlerPointerUp(PointerUpEvent event) {
  children.forEach((i) {
    if (i is GameComponent) {
      i.handlerPointerUp(event);
    }
  });
}@override
void handlerPointerUp(PointerUpEvent event) {
  children.forEach((i) {
    if (i is GameComponent) {
      i.handlerPointerUp(event);
    }
  });
}