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