public string GetExhibit()
        {
            Assert.IsTrue(m_story [m_index].typename == NodeType.exhibit.ToString());

            StoryExhibitData data = m_story [m_index] as StoryExhibitData;

            return(data.exhibitName);
        }
        private void ReadExhibit(string json)
        {
            StoryExhibitData data = JsonConvert.DeserializeObject <StoryExhibitData> (json);

            m_story.Add(data);
        }