mirror of
https://github.com/danbulant/ambientlightdemo
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27 lines
No EOL
998 B
Python
27 lines
No EOL
998 B
Python
import board
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import neopixel
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from gdmath import *
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pixels = neopixel.NeoPixel(
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board.D12, 10, brightness=.2, auto_write=False, pixel_order=neopixel.GRB
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)
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class Lights:
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virtual_rotation = 0
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color = (255, 255, 255)
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expected_rotation_delta = 0
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def __init__(self, pixels):
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self.pixels = pixels
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def process(self, delta):
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self.virtual_rotation += self.expected_rotation_delta * (delta * 60)
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max_darkness = clamp(abs(self.expected_rotation_delta / FULL_DARK_ROTATION_DELTA), 0, 1)
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for i in range(pixels.n):
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pattern_offset = wrap((i + (self.virtual_rotation * PATTERN_REPETITION)) / PATTERN_REPETITION, 0, 1)
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energy = (1 - (1 - pattern_offset) * max_darkness)
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new_color = tuple(int(x * energy) for x in self.color)
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self.pixels[i] = new_color
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self.pixels.show()
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self.expected_rotation_delta = lerp(self.expected_rotation_delta, 0, delta * LIGHT_SLOWDOWN_SPEED)
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lights = Lights(pixels) |