protected override void derivedUpdate(ColSubject pColSubject)
        {
            //Debug.WriteLine("AwardPointsObserver: {0} vs {1}", pColSubject.pObjA.name, pColSubject.pObjB.name);

            if (pColSubject.pObjA.name == GameObject.Name.SmallInvader ||
                pColSubject.pObjA.name == GameObject.Name.MediumInvader ||
                pColSubject.pObjA.name == GameObject.Name.LargeInvader ||
                pColSubject.pObjA.name == GameObject.Name.UFO)
            {
                this.pInvader = (InvaderCategory)pColSubject.pObjA;
            }
            else if (pColSubject.pObjB.name == GameObject.Name.SmallInvader ||
                     pColSubject.pObjB.name == GameObject.Name.MediumInvader ||
                     pColSubject.pObjB.name == GameObject.Name.LargeInvader ||
                     pColSubject.pObjB.name == GameObject.Name.UFO)
            {
                this.pInvader = (InvaderCategory)pColSubject.pObjB;
            }
            else
            {
                Debug.Assert(false, "Neither Object is not an Invader!");
            }

            // Delay - Awards points later
            //AwardPointsObserver pObserver = new AwardPointsObserver(this);
            //DelayedObjectManager.Attach(pObserver);
            //Debug.WriteLine("{0} awarding {1} Points", this, this.pInvader.value);
            GameManager.AwardPoints(this.pInvader.value);
        }