public Position averageFromBuffer(Position[] b){

        double xsum = 0;
        double ysum = 0;
        for (int i = 0; i<buffersize; i++){
            if (b[i]!=null){
                xsum+=b[i].getX();
                ysum+=b[i].getY();
            }
        }
        return new Position(xsum / buffersize, ysum / buffersize);
    }