49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
import hyperion
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import time
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import colorsys
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# Get the parameters
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rotationTime = float(hyperion.args.get('rotation-time', 10.0))
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color = hyperion.args.get('color', (255,0,0))
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backgroundColor = hyperion.args.get('background-color', (0,0,0))
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percentage = int(hyperion.args.get('percentage', 10))
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# Check parameters
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rotationTime = max(0.1, rotationTime)
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percentage = max(1, min(percentage, 100))
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# Process parameters
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factor = percentage/100.0
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# Initialize the led data
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snakeLeds = max(1, int(hyperion.ledCount*factor))
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ledData = bytearray()
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color_hsv = colorsys.rgb_to_hsv(color[0]/255.0,color[1]/255.0,color[2]/255.0)
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backgroundColor_hsv = colorsys.rgb_to_hsv(backgroundColor[0]/255.0,backgroundColor[1]/255.0,backgroundColor[2]/255.0)
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for i in range(hyperion.ledCount-snakeLeds):
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ledData += bytearray((int(backgroundColor[0]), int(backgroundColor[1]), int(backgroundColor[2])))
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def lerp(a, b, t):
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return (a[0]*(1-t)+b[0]*t, a[1]*(1-t)+b[1]*t, a[2]*(1-t)+b[2]*t)
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for i in range(0, snakeLeds):
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hsv = lerp(color_hsv, backgroundColor_hsv, 1.0/(snakeLeds-1)*i)
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rgb = colorsys.hsv_to_rgb(hsv[0], hsv[1], hsv[2])
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ledData += bytearray((int(rgb[0]*255), int(rgb[1]*255), int(rgb[2]*255)))
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# Calculate the sleep time and rotation increment
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increment = 3
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sleepTime = rotationTime / hyperion.ledCount
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while sleepTime < 0.05:
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increment *= 2
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sleepTime *= 2
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increment %= hyperion.ledCount
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# Start the write data loop
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while not hyperion.abort():
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hyperion.setColor(ledData)
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ledData = ledData[increment:] + ledData[:increment]
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time.sleep(sleepTime)
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