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feat(patterns): add twinkle pattern defaults

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Jimmy
2026-04-21 21:48:42 +12:00
parent 428ed8b884
commit a342187635
2 changed files with 228 additions and 0 deletions
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presets.json Normal file
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{"15": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 0, 0], [0, 255, 0]], "b": 255, "n2": 0, "n1": 0, "p": "blink", "n3": 0, "d": 500}, "40": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 255, 0]], "b": 255, "n2": 2600, "n1": 35, "p": "flame", "n3": 0, "d": 50}, "41": {"n5": 0, "n4": 5, "a": true, "n6": 0, "c": [[120, 200, 255], [80, 140, 255], [180, 120, 255], [100, 220, 232], [160, 200, 255]], "b": 255, "n2": 10, "n1": 72, "p": "twinkle", "n3": 5, "d": 500}, "42": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[166, 0, 255], [0, 10, 10]], "b": 255, "n2": 900, "n1": 30, "p": "radiate", "n3": 4000, "d": 5000}, "6": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[0, 255, 0]], "b": 255, "n2": 500, "n1": 1000, "p": "pulse", "n3": 1000, "d": 500}, "10": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[230, 242, 255]], "b": 200, "n2": 0, "n1": 0, "p": "on", "n3": 0, "d": 100}, "13": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 255, 255]], "b": 255, "n2": 0, "n1": 1, "p": "rainbow", "n3": 0, "d": 150}, "3": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 255, 255]], "b": 255, "n2": 0, "n1": 2, "p": "rainbow", "n3": 0, "d": 100}, "2": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 255, 255]], "b": 0, "n2": 0, "n1": 0, "p": "off", "n3": 0, "d": 100}, "38": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 0, 0], [0, 0, 255]], "b": 255, "n2": 0, "n1": 1, "p": "colour_cycle", "n3": 0, "d": 100}, "11": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 0, 0]], "b": 255, "n2": 0, "n1": 0, "p": "on", "n3": 0, "d": 100}, "12": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[0, 0, 255]], "b": 255, "n2": 0, "n1": 0, "p": "on", "n3": 0, "d": 100}, "1": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 255, 255]], "b": 255, "n2": 0, "n1": 0, "p": "on", "n3": 0, "d": 100}, "9": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 245, 230]], "b": 200, "n2": 0, "n1": 0, "p": "on", "n3": 0, "d": 100}, "8": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 0, 0], [0, 255, 0], [0, 0, 255], [255, 255, 0]], "b": 255, "n2": 0, "n1": 0, "p": "blink", "n3": 0, "d": 1000}, "39": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 184, 77]], "b": 255, "n2": 0, "n1": 30, "p": "flicker", "n3": 0, "d": 80}, "14": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 102, 0]], "b": 255, "n2": 1000, "n1": 2000, "p": "pulse", "n3": 2000, "d": 800}, "5": {"n5": 0, "n4": 1, "a": true, "n6": 0, "c": [[255, 0, 0], [0, 0, 255]], "b": 255, "n2": 5, "n1": 5, "p": "chase", "n3": 1, "d": 200}, "4": {"n5": 0, "n4": 0, "a": true, "n6": 0, "c": [[255, 0, 0], [0, 255, 0], [0, 0, 255], [255, 255, 255], [0, 0, 255], [255, 255, 0]], "b": 255, "n2": 0, "n1": 0, "p": "transition", "n3": 0, "d": 5000}, "7": {"n5": 0, "n4": 5, "a": true, "n6": 0, "c": [[255, 165, 0], [128, 0, 128]], "b": 255, "n2": 10, "n1": 2, "p": "circle", "n3": 2, "d": 200}}

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src/patterns/twinkle.py Normal file
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import random
import utime
# Default cool palette (icy blues, violet, mint) when preset has no colours.
# When `driver.debug` is True, print stats every N twinkle ticks (serial can be slow).
_TWINKLE_DBG_INTERVAL = 40
_DEFAULT_COOL = (
(120, 200, 255),
(80, 140, 255),
(180, 120, 255),
(100, 220, 240),
(160, 200, 255),
(90, 180, 220),
)
class Twinkle:
def __init__(self, driver):
self.driver = driver
def _palette(self, preset):
colors = preset.c
if not colors:
return list(_DEFAULT_COOL)
out = []
for c in colors:
if isinstance(c, (list, tuple)) and len(c) == 3:
out.append(
(
max(0, min(255, int(c[0]))),
max(0, min(255, int(c[1]))),
max(0, min(255, int(c[2]))),
)
)
return out if out else list(_DEFAULT_COOL)
def run(self, preset):
"""Twinkle: n1 activity, n2 density; n3/n4 min/max length of adjacent on/off runs."""
palette = self._palette(preset)
num = self.driver.num_leds
if num <= 0:
while True:
yield
return
def activity_rate():
r = int(preset.n1)
if r <= 0:
r = 48
return max(1, min(255, r))
def density255():
"""Higher → more LEDs lit on average when a twinkle step fires (0 = default mid)."""
d = int(preset.n2)
if d <= 0:
d = 128
return max(0, min(255, d))
def cluster_len_bounds():
"""n3 = min adjacent LEDs per twinkle, n4 = max (both 0 → 1..4)."""
lo = int(preset.n3)
hi = int(preset.n4)
if lo <= 0 and hi <= 0:
lo, hi = 1, min(4, num)
else:
if lo <= 0:
lo = 1
if hi <= 0:
hi = lo
if hi < lo:
lo, hi = hi, lo
lo = max(1, min(lo, num))
hi = max(lo, min(hi, num))
return lo, hi
def random_cluster_len():
lo, hi = cluster_len_bounds()
# When min and max match, every lit/dim run is exactly that many LEDs (still capped by strip length).
if lo == hi:
return lo
return random.randint(lo, hi)
def cluster_base_index(start, k):
"""Shift run left so a length-k segment fits; keeps full k when num >= k."""
k = min(max(0, int(k)), num)
if k <= 0:
return 0
return max(0, min(int(start), num - k))
dens = density255()
on = [random.randint(0, 255) < dens for _ in range(num)]
colour_i = [random.randint(0, len(palette) - 1) for _ in range(num)]
last_update = utime.ticks_ms()
dbg_tick = 0
dbg_banner = False
def on_run_min_max(bits):
"""Smallest and largest contiguous run of True in bits (0,0 if all off)."""
best_min = num + 1
best_max = 0
cur = 0
for j in range(num):
if bits[j]:
cur += 1
else:
if cur:
if cur < best_min:
best_min = cur
if cur > best_max:
best_max = cur
cur = 0
if cur:
if cur < best_min:
best_min = cur
if cur > best_max:
best_max = cur
if best_min == num + 1:
return 0, 0
return best_min, best_max
if not preset.a:
for i in range(num):
if on[i]:
base = palette[colour_i[i] % len(palette)]
self.driver.n[i] = self.driver.apply_brightness(base, preset.b)
else:
self.driver.n[i] = (0, 0, 0)
self.driver.n.write()
yield
return
while True:
now = utime.ticks_ms()
delay_ms = max(1, int(preset.d))
if utime.ticks_diff(now, last_update) >= delay_ms:
rate = activity_rate()
dens = density255()
dbg = bool(getattr(self.driver, "debug", False))
dbg_tick += 1
# Snapshot for decisions; apply all darks then all lights so
# overlaps in the same tick favour lit runs (lights win).
prev_on = on[:]
prev_ci = colour_i[:]
next_on = list(prev_on)
next_ci = list(prev_ci)
dbg_ops = {"L": 0, "D": 0}
light_i = []
dark_i = []
for i in range(num):
if random.randint(0, 255) < rate:
r = random.randint(0, 255)
if not prev_on[i]:
if r < dens:
light_i.append(i)
else:
if r < (255 - dens):
dark_i.append(i)
def light_adjacent(start):
dbg_ops["L"] += 1
k = random_cluster_len()
b = cluster_base_index(start, k)
for dj in range(k):
idx = b + dj
next_on[idx] = True
next_ci[idx] = random.randint(0, len(palette) - 1)
def dark_adjacent(start):
dbg_ops["D"] += 1
k = random_cluster_len()
b = cluster_base_index(start, k)
for dj in range(k):
idx = b + dj
next_on[idx] = False
for i in dark_i:
dark_adjacent(i)
for i in light_i:
light_adjacent(i)
for i in range(num):
if next_on[i]:
base = palette[next_ci[i] % len(palette)]
self.driver.n[i] = self.driver.apply_brightness(base, preset.b)
else:
self.driver.n[i] = (0, 0, 0)
self.driver.n.write()
on = next_on
colour_i = next_ci
last_update = utime.ticks_add(last_update, delay_ms)
if dbg:
lo, hi = cluster_len_bounds()
if not dbg_banner:
dbg_banner = True
print(
"[twinkle] debug on: n1=%s n2=%s n3=%s n4=%s d=%s -> lo=%d hi=%d num=%d"
% (
preset.n1,
preset.n2,
preset.n3,
preset.n4,
preset.d,
lo,
hi,
num,
)
)
rmin, rmax = on_run_min_max(on)
bad = lo > 0 and rmin > 0 and rmin < lo and num >= lo
if bad or (dbg_tick % _TWINKLE_DBG_INTERVAL == 0):
print(
"[twinkle] tick=%d rate=%d dens=%d L=%d D=%d on_runs min=%d max=%d%s"
% (
dbg_tick,
rate,
dens,
dbg_ops["L"],
dbg_ops["D"],
rmin,
rmax,
" **run<lo**" if bad else "",
)
)
yield