integer rotating;

default
{
    touch_start(integer n)
    {
        rotating = !rotating; // flip the rotating status
        if (rotating)
        {
            llTargetOmega(<0, 0, 1>, PI, 1);
        }
        else
        {
            llTargetOmega(<0, 0, 0>, 0, 0);
        }
    }
}