hyperion.ng/effects/trails.py

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import hyperion
import time
import colorsys
import random
min_len = int(hyperion.args.get('min_len', 3))
max_len = int(hyperion.args.get('max_len', 3))
height = int(hyperion.args.get('height', 8))
trails = int(hyperion.args.get('int', 8))
sleepTime = float(hyperion.args.get('speed', 1.0)) * 0.01
color = list(hyperion.args.get('color', (255,255,255)))
randomise = bool(hyperion.args.get('random', False))
whidth = hyperion.ledCount / height
class trail:
def __init__(self):
return
def start(self, x, y, step, color, _len, _h):
self.pos = 0.0
self.step = step
self.h = _h
self.x = x
self.data = []
brigtness = color[2]
step_brigtness = color[2] / _len
for i in range(0, _len):
rgb = colorsys.hsv_to_rgb(color[0], color[1], brigtness)
self.data.insert(0, (int(255*rgb[0]), int(255*rgb[1]), int(255*rgb[2])))
brigtness -= step_brigtness
self.data.extend([(0,0,0)]*(_h-y))
if len(self.data) < _h:
for i in range (_h-len(self.data)):
self.data.insert(0, (0,0,0))
def getdata(self):
self.pos += self.step
if self.pos > 1.0:
self.pos = 0.0
self.data.pop()
self.data.insert(0, (0,0,0))
return self.x, self.data[-self.h:], all(x == self.data[0] for x in self.data)
tr = []
for i in range(trails):
r = {
'exec': trail()
}
if randomise:
col = (random.uniform(0.1, 1.0), random.uniform(0.1, 1.0), random.uniform(0.1, 1.0))
else:
col = colorsys.rgb_to_hsv(color[0]/255.0, color[1]/255.0, color[2]/255.0)
r['exec'].start(
random.randint(0, whidth),
random.randint(0, height),
random.uniform(0.2, 0.8),
col,
random.randint(min_len, max_len),
height
)
tr.append(r)
# Start the write data loop
while not hyperion.abort():
ledData = bytearray()
for r in tr:
r['x'], r['data'], c = r['exec'].getdata()
if c:
if randomise:
col = (random.uniform(0.1, 1.0), random.uniform(0.1, 1.0), random.uniform(0.1, 1.0))
else:
col = colorsys.rgb_to_hsv(color[0]/255.0, color[1]/255.0, color[2]/255.0)
r['exec'].start(
random.randint(0, whidth),
random.randint(0, height),
random.uniform(0.2, 0.8),
col,
random.randint(min_len, max_len),
height
)
for y in range(0, height):
for x in range(0, whidth):
for r in tr:
if x == r['x']:
led = bytearray(r['data'][y])
break
led = bytearray((0,0,0))
ledData += led
hyperion.setImage(whidth,height,ledData)
time.sleep(sleepTime)