public static void setSide(int side) {
        s = side;
        t = (int) (s / 2);	//t = s sin(30) = (int) CalculateH(s);
        r = (int) (s * 0.8660254037844);	//r = s cos(30) = (int) CalculateR(s);
        h = 2 * r;
    }