public void CreateNode(DialogueNode parentNode)
{
DialogueNode node = CreateInstance <DialogueNode>();
node.name = Guid.NewGuid().ToString();
Undo.RegisterCreatedObjectUndo(node, "Dialogue Object Created");
node.SetIsPlayer(!parentNode.IsPlayerSpeech);
Rect tempRect = new Rect(node.PositionRect);
tempRect.center = new Vector2(parentNode.PositionRect.center.x + 1.5f * parentNode.PositionRect.width,
parentNode.PositionRect.center.y);
node.PositionRect = tempRect;
parentNode.AddChild(node.name);
Undo.RecordObject(this, "Dialogue Node Added");
_dialogueNodes.Add(node);
if (!_nodeLookup.ContainsKey(node.name))
{
_nodeLookup[node.name] = node;
}
}