62 lines
1.9 KiB
Python
62 lines
1.9 KiB
Python
import hyperion
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import time
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import colorsys
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import math
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# Get the parameters
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rotationTime = float(hyperion.args.get('rotationTime', 20.0))
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color = hyperion.args.get('color', (0,0,255))
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hueChange = float(hyperion.args.get('hueChange', 60.0)) / 360.0
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blobs = int(hyperion.args.get('blobs', 5))
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reverse = bool(hyperion.args.get('reverse', False))
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# Check parameters
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rotationTime = max(0.1, rotationTime)
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hueChange = max(0.0, min(abs(hueChange), .5))
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blobs = max(1, blobs)
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# Calculate the color data
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baseHsv = colorsys.rgb_to_hsv(color[0]/255.0, color[1]/255.0, color[2]/255.0)
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colorData = bytearray()
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for i in range(hyperion.ledCount):
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hue = (baseHsv[0] + hueChange * math.sin(2*math.pi * i / hyperion.ledCount)) % 1.0
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rgb = colorsys.hsv_to_rgb(hue, baseHsv[1], baseHsv[2])
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colorData += bytearray((int(255*rgb[0]), int(255*rgb[1]), int(255*rgb[2])))
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# Calculate the increments
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sleepTime = 0.1
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amplitudePhaseIncrement = blobs * math.pi * sleepTime / rotationTime
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colorDataIncrement = 3
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# Switch direction if needed
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if reverse:
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amplitudePhaseIncrement = -amplitudePhaseIncrement
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colorDataIncrement = -colorDataIncrement
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# create a Array for the colors
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colors = bytearray(hyperion.ledCount * (0,0,0))
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# Start the write data loop
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amplitudePhase = 0.0
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rotateColors = False
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while not hyperion.abort():
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# Calculate new colors
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for i in range(hyperion.ledCount):
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amplitude = max(0.0, math.sin(-amplitudePhase + 2*math.pi * blobs * i / hyperion.ledCount))
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colors[3*i+0] = int(colorData[3*i+0] * amplitude)
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colors[3*i+1] = int(colorData[3*i+1] * amplitude)
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colors[3*i+2] = int(colorData[3*i+2] * amplitude)
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# set colors
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hyperion.setColor(colors)
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# increment the phase
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amplitudePhase = (amplitudePhase + amplitudePhaseIncrement) % (2*math.pi)
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if rotateColors:
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colorData = colorData[-colorDataIncrement:] + colorData[:-colorDataIncrement]
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rotateColors = not rotateColors
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# sleep for a while
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time.sleep(sleepTime)
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