Effect development

import hyperion
import time
import colorsys

# Get the parameters
rotationTime = hyperion.args.get('rotation-time', 3.0)
brightness = hyperion.args.get('brightness', 1.0)
saturation = hyperion.args.get('saturation', 1.0)
reverse = hyperion.args.get('reverse', False)

# Check parameters
rotationTime = max(0.1, rotationTime)
brightness = max(0.0, min(brightness, 1.0))
saturation = max(0.0, min(saturation, 1.0))

# Initialize the led data
ledData = bytearray()
for i in range(hyperion.ledCount):
        hue = float(i)/hyperion.ledCount
        rgb = colorsys.hsv_to_rgb(hue, saturation, brightness)
        ledData += bytearray((int(255*rgb[0]), int(255*rgb[1]), int(255*rgb[2])))

# Calculate the sleep time and rotation increment
increment = 3
sleepTime = rotationTime / hyperion.ledCount
while sleepTime < 0.05:
        increment *= 2
        sleepTime *= 2
increment %= hyperion.ledCount

# Switch direction if needed
if reverse:
        increment = -increment

# Start the write data loop
while not hyperion.abort():
        hyperion.setColor(ledData)
        ledData = ledData[-increment:] + ledData[:-increment]
        time.sleep(sleepTime)