public static void drawHex(int i, int j, Graphics2D g2) {
        //int x = i * (s + t);
        //int y = j * h + (i % 2) * h / 2;
        int x;
        if (i % 2 != 0) {
            x = j * h + r;
        } else {
            x = j * h;
        }
        int y = i * (h - (t / 2));
        Polygon poly = hex(x, y);
        g2.setColor(COLOURGRID);
        g2.drawPolygon(poly);
    }