/// <summary>
/// Invokes and bubbles up output of embedded fragments and passages.
/// </summary>
IStoryThread CollapseThread(IStoryThread thread)
{
foreach (StoryOutput output in thread)
{
//foreach (TwineOutput scopeTag in ScopeOutputTags())
// yield return scopeTag;
if (output is Embed)
{
var embed = (Embed)output;
IStoryThread embeddedThread;
if (embed is EmbedPassage)
{
var embedInfo = (EmbedPassage)embed;
StoryPassage passage = GetPassage(embedInfo.Name);
embeddedThread = passage.MainThread();
}
else if (embed is EmbedFragment)
{
var embedInfo = (EmbedFragment)embed;
embeddedThread = embedInfo.GetThread();
}
else
{
continue;
}
// First yield the embed
yield return(embed);
// Output the content
foreach (StoryOutput innerOutput in CollapseThread(embeddedThread))
{
if (innerOutput != null)
{
innerOutput.EmbedInfo = embed;
}
yield return(innerOutput);
}
}
else
{
yield return(output);
}
}
//foreach (TwineOutput scopeTag in ScopeOutputTags())
// yield return scopeTag;
}
void Enter(string passageName)
{
_passageWaitingToEnter = null;
_passageEnterCueInvoked = false;
_timeAccumulated = 0;
_timeChangedToPlay = Time.time;
this.InsertStack.Clear();
this.Output.Clear();
_groupStack.Clear();
_passageUpdateCues = null;
StoryPassage passage = GetPassage(passageName);
this.Tags = (string[])passage.Tags.Clone();
this.CurrentPassageName = passage.Name;
PassageHistory.Add(passageName);
// Prepare the thread enumerator
_currentThread = CollapseThread(GetPassageThread(passage).Invoke()).GetEnumerator();
CurrentLinkInAction = null;
this.State = StoryState.Playing;
// Invoke the general passage enter event
if (this.OnPassageEnter != null)
{
this.OnPassageEnter(passage);
}
// Story was paused, wait for it to resume
if (this.State == StoryState.Paused)
{
return;
}
else
{
CuesInvoke(CuesGet(passage.Name, "Enter"));
_passageEnterCueInvoked = true;
ExecuteCurrentThread();
}
}
protected virtual Func <IStoryThread> GetPassageThread(StoryPassage passage)
{
return(passage.MainThread);
}