public void InsertChild(int index, MotionItemBase child)
{
childList.Insert(index, child);
child.Parent = this;
ChildInserted?.Invoke(index, child);
}
public void RemoveChild(MotionItemBase child)
{
childList.Remove(child);
child.Parent = null;
ChildRemoved?.Invoke(child);
}
public void AddChild(MotionItemBase child)
{
InsertChild(childList.Count, child);
}