get_direction example (silly)

def get_direction(speed):
    '''
    speed := speed of axis in rotation per second

    This function returns:
    1  := Clockwise rotation
    0  := No rotation
    -1 := Counter clockwise rotation
    '''
    if speed > 0:
        return 1
    elif speed < 0:
        return -1
    else:
        return 0