/*
* a hint is basically like a change in the text; it has the same subgraph as the node from which the hint is accessed
* so users can access the same subgraph from the hint node as they could from the parent. the hint node also inherits the parent's hints,
* minus itself.
*
* in the actual game, when the user fails to match a transition, hints will be delivered before free transitions.
*
* */
public void AddHint(StoryNode hint)
{
//note that hints don't take the entire hint set of this;
//each hint should only take the hints that -would follow it- in the queue of its parent,
//so the specific hints that any one will get depends on what's added afterwards.
hint.TakeTransitionsOf(this);
hint.TakeFreeTransitionsOf(this);
hints.Add(hint);
//notify subscribers who also want to take this hint
HintAddedToStory(hint);
}
