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from luxcena_neo import NeoBehaviour, utils, FloatVariable, BooleanVariable
from time import perf_counter
def wheel(pos):
"""Generate rainbow colors across 0-255 positions."""
if pos < 85:
return (pos * 3, 255 - pos * 3, 0)
elif pos < 170:
pos -= 85
return (255 - pos * 3, 0, pos * 3)
else:
pos -= 170
return (0, pos * 3, 255 - pos * 3)
class Main(NeoBehaviour):
def declare_variables(self):
self.declare(FloatVariable("speed", 0.95, min_val=0, max_val=1, step=0.01))
self.declare(BooleanVariable("Uniform", True))
def on_start(self):
""" Execute when mode is selected. """
self.j = 0
self.i = 0
self.last_inst = perf_counter()
def each_tick(self):
"""Draw rainbow that fades across all pixels at once."""
if (perf_counter() - self.last_inst) > (1.01-self.var.speed):
self.last_inst = perf_counter()
self.j += 1
if self.j >= 256: self.j = 0
for i in range(strip.num_pixels()):
if self.var["Uniform"]:
strip.set_pixel_color(i, wheel(int((i * 256 // strip.num_pixels()) + self.j) & 255))
else:
strip.set_pixel_color(i, wheel((i+self.j) & 255))
strip.show()
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