// UTILITY
protected static void DebugNodes(Yarn.Dialogue dialogue)
{
List <string> startNodes = dialogue.allNodes.ToList();
string debugLog = "Start Nodes\n";
foreach (string node in startNodes)
{
debugLog += '\t' + node + '\n';
IEnumerable <string> tags = dialogue.GetTagsForNode(node);
foreach (var tag in tags)
{
debugLog += "\t\t" + tag + '\n';
}
}
DebugLog.Log(debugLog);
}
/// <summary>
/// Select a dialog tree based on the start nodes of the dialog database.
///
/// You can also search the tags of the node by using `dialog.GetTagsFromNode(nodeName)`
/// </summary>
/// <param name="history">History of previous and current interactions</param>
/// <param name="intention">Strategy intention of the interaction</param>
/// <param name="startNodes">List of nodes to select from.</param>
/// <returns>Dialog tree that contains information on which start node to begin from.</returns>
protected virtual YarnDialogTree SelectDialogYarn(History history, Intention intention, List <string> startNodes)
{
var potencialNodes = new List <string>();
// Filter by name
foreach (string node in startNodes)
{
var tags = Dialogue.GetTagsForNode(node);
var tagsList = tags.ToList();
// TODO Remove to use Moodle
if (tagsList.Contains("online"))
{
continue;
}
foreach (var tag in tagsList)
{
if (intention.Name.ToLower().Contains(tag.ToLower()))
{
// a node can be inserted several times, the more tags that match with the name the more it is inserted.
potencialNodes.Add(node);
}
}
}
if (potencialNodes.Count == 0)
{
return(null);
}
// Shuffle list
potencialNodes = potencialNodes.OrderBy(a => Guid.NewGuid()).ToList();
// pick first
string n = potencialNodes[0];
return(new YarnDialogTree(Dialogue, n));
}