hyperion.ng/effects/random.py

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import hyperion, time, colorsys, random, math
# get args
sleepTime = float(hyperion.args.get('speed', 1.0))/1000.0
saturation = float(hyperion.args.get('saturation', 1.0))
ledData = bytearray()
ledDataBuf = bytearray()
color_step = []
minStepTime= float(hyperion.latchTime)/1000.0
fadeSteps = min(256.0, math.floor(sleepTime/minStepTime))
# Initialize the led data
for i in range(hyperion.ledCount):
ledData += bytearray((0,0,0))
ledDataBuf += bytearray((0,0,0))
color_step.append((0.0,0.0,0.0))
# Start the write data loop
while not hyperion.abort():
for i in range(len(ledData)):
ledDataBuf[i] = ledData[i]
for i in range(hyperion.ledCount):
if random.randrange(10) == 1:
rgb = colorsys.hsv_to_rgb(random.random(), saturation, random.random())
ledData[i*3 ] = int(255*rgb[0])
ledData[i*3+1] = int(255*rgb[1])
ledData[i*3+2] = int(255*rgb[2])
color_step[i] = (
(ledData[i*3 ]-ledDataBuf[i*3 ])/fadeSteps,
(ledData[i*3+1]-ledDataBuf[i*3+1])/fadeSteps,
(ledData[i*3+2]-ledDataBuf[i*3+2])/fadeSteps)
else:
color_step[i] = (0.0,0.0,0.0)
for step in range(int(fadeSteps)):
for i in range(hyperion.ledCount):
ledDataBuf[i*3 ] = min(max(int(ledDataBuf[i*3 ] + color_step[i][0]*float(step)),0),ledData[i*3 ])
ledDataBuf[i*3+1] = min(max(int(ledDataBuf[i*3+1] + color_step[i][1]*float(step)),0),ledData[i*3+1])
ledDataBuf[i*3+2] = min(max(int(ledDataBuf[i*3+2] + color_step[i][2]*float(step)),0),ledData[i*3+2])
hyperion.setColor(ledDataBuf)
time.sleep(sleepTime/fadeSteps)
hyperion.setColor(ledData)