// Should be called by StoryManager after all stanzas are loaded.
// Attaches swipe handlers so that StorybookEvent ROS messages get sent when stanzas are swiped.
public void SetSentenceSwipeHandlers()
{
for (int i = 0; i < this.stanzas.Count; i++)
{
Stanza stanza = this.stanzas[i].GetComponent <Stanza>();
// TODO: consider only first stanza in the sentence needs a swipe handler.
// Decided not to since it might confuse kids.
int sentenceIndex = stanza.GetSentenceIndex();
string text = this.sentences[sentenceIndex].GetSentenceText();
stanza.AddSwipeHandler(this.rosManager.SendSentenceSwipedAction(sentenceIndex, text));
}
}