if(explode){
            explodefactor += 5 * deltaTime;

            if(0 < explodeScaleFactor ) {
                explodeScaleFactor -= 2 * deltaTime;
                // Discard object!
            }else if( explodeScaleFactor <= 0){
                Assignment3Base.removeAstroid(this);
            }
        }

    }

    public void explode(){
        explode = true;
    }