public void RemoveScene(Scene s, bool dispose=false)
{
s.Removed = true;
s.NeedsDisposing = dispose;
s.Focused = false;
s.ExitFocus();
_scenesToRemove.Add(s);
}
public void AddScene(Scene s, Scene parent)
{
s.SceneManager = this;
s.ParentScene = parent;
_scenesToAdd.Add(s);
}