public void OnButtonPressed(int buttonID)
 {
     if (currentNode.getNextNode() == -1)
     {
         if (currentNode.getEvent() != null)
         {
             currentNode.triggerEvent();
         }
         if (currentNode.getNumButtons() != 0)
         {
             currentNode = currentNode.getChildAt(buttonID);
             displayText(currentNode.getLine());
         }
         else
         {
             endDialogue();
         }
     }
     else
     {
         if (currentNode.getEvent() != null)
         {
             currentNode.triggerEvent();
         }
         currentNode = currentNode.getChildAt(currentNode.getNextNode());
         displayText(currentNode.getLine());
     }
 }