PM_CmdScale

    private float CmdScale() {
        int max;
        float total;

        max = (int)System.Math.Abs(cmd.forwardmove);
        if ((int)System.Math.Abs(cmd.rightmove) > max) {
            max = (int)System.Math.Abs(cmd.rightmove);
        }
        if ((int)System.Math.Abs(cmd.upmove) > max) {
            max = (int)System.Math.Abs(cmd.upmove);
        }
        if (max <= 0) {
            return 0;
        }

        total = (float)System.Math.Abs(cmd.forwardmove * cmd.forwardmove
                      + cmd.rightmove * cmd.rightmove + cmd.upmove * cmd.upmove);
        scale *= 0.8f;
        return scale;
    }