hyperion.ng/effects/fade.py

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import hyperion, time
# Get the parameters
fadeInTime = float(hyperion.args.get('fade-in-time', 2000)) / 1000.0
fadeOutTime = float(hyperion.args.get('fade-out-time', 2000)) / 1000.0
colorStart = hyperion.args.get('color-start', (255,174,11))
colorEnd = hyperion.args.get('color-end', (0,0,0))
colorStartTime = float(hyperion.args.get('color-start-time', 1000)) / 1000
colorEndTime = float(hyperion.args.get('color-end-time', 1000)) / 1000
repeat = hyperion.args.get('repeat-count', 0)
maintainEndCol = hyperion.args.get('maintain-end-color', True)
minStepTime = float(hyperion.latchTime)/1000.0
currentR = currentG = currentB = 0
# create color table for fading from start to end color
steps = float(max(abs(colorEnd[0] - colorStart[0]),max(abs(colorEnd[1] - colorStart[1]),abs(colorEnd[2] - colorStart[2]))))
color_step = (0,0,0)
if steps == 0:
steps = 1
else:
color_step = (
(colorEnd[0] - colorStart[0]) / steps,
(colorEnd[1] - colorStart[1]) / steps,
(colorEnd[2] - colorStart[2]) / steps
)
calcChannel = lambda i: min(max(int(round(colorStart[i] + color_step[i]*step)),0), colorEnd[i] if colorStart[i] < colorEnd[i] else colorStart[i])
colors = []
for step in range(int(steps)+1):
colors.append( (calcChannel(0),calcChannel(1),calcChannel(2)) )
# calculate timings
if fadeInTime>0:
incrementIn = max(1,int(round(steps / (fadeInTime / minStepTime) )))
sleepTimeIn = fadeInTime / (steps / incrementIn)
else:
incrementIn = sleepTimeIn = 1
if fadeOutTime>0:
incrementOut = max(1,int(round(steps / (fadeOutTime / minStepTime) )))
sleepTimeOut = fadeOutTime / (steps / incrementOut)
else:
incrementOut = sleepTimeOut = 1
def setColor(r,g,b):
global currentR,currentG,currentB
currentR = r
currentG = g
currentB = b
hyperion.setColor(r,g,b)
# loop
repeatCounter = 1
while not hyperion.abort():
# fade in
if fadeInTime > 0:
setColor( colors[0][0],colors[0][1],colors[0][2] )
for step in range(0,int(steps)+1,incrementIn):
if hyperion.abort(): break
setColor( colors[step][0],colors[step][1],colors[step][2] )
time.sleep(sleepTimeIn)
# end color
t = 0.0
while t<colorStartTime and not hyperion.abort():
setColor( colors[int(steps)][0],colors[int(steps)][1],colors[int(steps)][2] )
time.sleep(minStepTime)
t += minStepTime
# fade out
if fadeOutTime > 0:
setColor( colors[int(steps)][0],colors[int(steps)][1],colors[int(steps)][2] )
for step in range(int(steps),-1,-incrementOut):
if hyperion.abort(): break
setColor( colors[step][0],colors[step][1],colors[step][2] )
time.sleep(sleepTimeOut)
# start color
t = 0.0
while t<colorEndTime and not hyperion.abort():
setColor( colors[0][0],colors[0][1],colors[0][2] )
time.sleep(minStepTime)
t += minStepTime
# repeat
if repeat > 0 and repeatCounter >= repeat : break
repeatCounter += 1
time.sleep(0.5)
# maintain end color until effect end
while not hyperion.abort() and maintainEndCol:
hyperion.setColor( currentR, currentG, currentB )
time.sleep(1)