hyperion.ng/effects/rainbow-swirl.py

54 lines
1.4 KiB
Python
Raw Normal View History

import hyperion, time, math
# set minimum image size - must be done asap
hyperion.imageMinSize(32,32)
# Get the parameters
rotationTime = float(hyperion.args.get('rotation-time', 3.0))
reverse = bool(hyperion.args.get('reverse', False))
centerX = float(hyperion.args.get('center_x', 0.5))
centerY = float(hyperion.args.get('center_y', 0.5))
minStepTime = float(hyperion.latchTime)/1000.0
sleepTime = max(0.1, rotationTime) / 360
angle = 0
centerX = int(round(float(hyperion.imageWidth())*centerX))
centerY = int(round(float(hyperion.imageHeight())*centerY))
increment = -1 if reverse else 1
# adapt sleeptime to hardware
if minStepTime > sleepTime:
increment *= int(math.ceil(minStepTime / sleepTime))
sleepTime = minStepTime
# table of stop colors for rainbow gradient, first is the position, next rgb, all values 0-255
rainbowColors = bytearray([
0 ,255,0 ,0, 255,
25 ,255,230,0, 255,
63 ,255,255,0, 255,
100,0 ,255,0, 255,
127,0 ,255,200, 255,
159,0 ,255,255, 255,
191,0 ,0 ,255, 255,
224,255,0 ,255, 255,
255,255,0 ,127, 255,
#0, 255, 0, 0, 255,
#42, 255, 255, 0, 255,
#85, 0, 255, 0, 255,
#128, 0, 255, 255, 255,
#170, 0, 0, 255, 255,
#212, 255, 0, 255, 255,
#255, 255, 0, 0, 255,
])
# effect loop
while not hyperion.abort():
angle += increment
if angle > 360: angle=0
if angle < 0: angle=360
hyperion.imageCanonicalGradient(centerX, centerY, angle, rainbowColors)
hyperion.imageShow()
time.sleep(sleepTime)