Files
led-driver/src/patterns/plasma.py
Jimmy 74b4b495f9 feat(patterns): add expanded animation pack with smoke tests
Add a broad set of new pattern modules and matching pattern smoke scripts so the new effects can be validated directly on-device.
2026-04-23 20:10:01 +12:00

40 lines
1.3 KiB
Python

import utime
class Plasma:
def __init__(self, driver):
self.driver = driver
def _wheel(self, pos):
if pos < 85:
return (pos * 3, 255 - pos * 3, 0)
if pos < 170:
pos -= 85
return (255 - pos * 3, 0, pos * 3)
pos -= 170
return (0, pos * 3, 255 - pos * 3)
def run(self, preset):
scale = max(1, int(preset.n1) if int(preset.n1) > 0 else 6)
speed = max(1, int(preset.n2) if int(preset.n2) > 0 else 2)
contrast = max(1, int(preset.n3) if int(preset.n3) > 0 else 2)
t = self.driver.step % 256
last = utime.ticks_ms()
while True:
d = max(1, int(preset.d))
now = utime.ticks_ms()
if utime.ticks_diff(now, last) >= d:
for i in range(self.driver.num_leds):
v = ((i * scale + t) & 255)
v2 = (((i * scale // max(1, contrast)) - (t * 2)) & 255)
c = self._wheel((v + v2) & 255)
self.driver.n[i] = self.driver.apply_brightness(c, preset.b)
self.driver.n.write()
t = (t + speed) % 256
self.driver.step = t
last = utime.ticks_add(last, d)
if not preset.a:
yield
return
yield