f4da9564d4
- AnimationBase ABC with render(t, led_count) and from_params() contract - SolidColorAnimation: time-independent uniform fill - ChaseAnimation: moving lit segment with forward/reverse support - PulseAnimation: sine-wave breathing effect (speed maps to period) - RainbowAnimation: HSV hue cycle across strip via colorsys.hsv_to_rgb - StrobeAnimation: on/off flashing at 1-20 Hz with configurable duty cycle - ColorWipeAnimation: progressive fill from start or end - FireAnimation: Fire2012 algorithm with cooling/sparking/heat-to-color mapping - ANIMATION_REGISTRY + create_animation() factory function - All 24 tests passing
39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
"""Rainbow animation — full HSV hue cycle across the strip."""
|
|
import colorsys
|
|
from lightsync.animations.base import AnimationBase
|
|
|
|
|
|
class RainbowAnimation(AnimationBase):
|
|
"""Hue-shifting rainbow across the entire strip.
|
|
|
|
period=1.0 means one full rainbow cycle fits on the strip.
|
|
speed controls how fast the hues shift over time.
|
|
"""
|
|
|
|
def __init__(
|
|
self,
|
|
speed: float = 0.5,
|
|
period: float = 1.0,
|
|
) -> None:
|
|
self.speed = speed
|
|
self.period = period
|
|
|
|
def render(self, t: float, led_count: int) -> list[tuple]:
|
|
pixels = []
|
|
for i in range(led_count):
|
|
hue = (i / led_count / self.period + t * self.speed) % 1.0
|
|
r_f, g_f, b_f = colorsys.hsv_to_rgb(hue, 1.0, 1.0)
|
|
pixels.append((
|
|
int(r_f * 255),
|
|
int(g_f * 255),
|
|
int(b_f * 255),
|
|
))
|
|
return pixels
|
|
|
|
@classmethod
|
|
def from_params(cls, params: dict) -> "RainbowAnimation":
|
|
return cls(
|
|
speed=params.get("speed", 0.5),
|
|
period=params.get("period", 1.0),
|
|
)
|