private void OnTrigger(CollisionData data)
 {
     try
     {
         AgentPrivate agent = ScenePrivate.FindAgent(data.HitComponentId.ObjectId);
         if (data.Phase == CollisionEventPhase.TriggerExit)
         {
             agent.SetGravityFactor(1.0f);
         }
         else if (data.Phase == CollisionEventPhase.TriggerEnter)
         {
             agent.SetGravityFactor(gravityFactor);
         }
     }
     catch (NullReferenceException nre) { Log.Write(LogLevel.Info, "NullReferenceException setting agent gravity factor (maybe the user left): " + nre.Message); }
     catch (Exception e) { Log.Write(LogLevel.Error, "Exception setting agent gravity factor: " + e.Message); }
 }
    public void OnClick(InteractionData data)
    {
        // Find the agent that clicked.
        AgentPrivate agent = ScenePrivate.FindAgent(data.AgentId);

        // Lower gravity for the agent that clicked
        agent.SetGravityFactor(gravityFactor);

        //Send the quest event
        SendQuestEvent(questCommand, agent);
    }