github-actions[bot]
f8e13417f2
date: 2026-08-15T14:20:10 master commit: d48cfa730bf21593b684efeaf3fd8940695e1dea
80 lines
2.3 KiB
Python
80 lines
2.3 KiB
Python
"""
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Copyright (c) 2021-, Haibin Wen, sunnypilot, and a number of other contributors.
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This file is part of sunnypilot and is licensed under the MIT License.
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See the LICENSE.md file in the root directory for more details.
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"""
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import time
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import colorsys
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import pyray as rl
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from openpilot.system.ui.lib.shader_polygon import draw_polygon, Gradient
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class RainbowPath:
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DEFAULT_NUM_SEGMENTS = 8
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DEFAULT_SPEED = 50.0 # degrees per second
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DEFAULT_SATURATION = 0.9
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DEFAULT_LIGHTNESS = 0.6
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BASE_ALPHA = 0.8
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ALPHA_FADE = 0.3 # Alpha reduction from bottom to top
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def __init__(self, num_segments: int = DEFAULT_NUM_SEGMENTS, speed: float = DEFAULT_SPEED,
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saturation: float = DEFAULT_SATURATION, lightness: float = DEFAULT_LIGHTNESS):
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self.num_segments = num_segments
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self.speed = speed
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self.saturation = saturation
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self.lightness = lightness
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def set_speed(self, speed: float):
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self.speed = speed
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def set_num_segments(self, num_segments: int):
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self.num_segments = num_segments
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def set_saturation(self, saturation: float):
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self.saturation = max(0.0, min(1.0, saturation))
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def set_lightness(self, lightness: float):
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self.lightness = max(0.0, min(1.0, lightness))
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def get_gradient(self) -> Gradient:
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time_offset = time.monotonic()
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hue_offset = (time_offset * self.speed) % 360.0
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segment_colors = []
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gradient_stops = []
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for i in range(self.num_segments):
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position = i / (self.num_segments - 1)
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hue = (hue_offset + position * 360.0) % 360.0
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alpha = self.BASE_ALPHA * (1.0 - position * self.ALPHA_FADE)
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color = self._hsla_to_color(
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hue / 360.0,
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self.saturation,
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self.lightness,
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alpha
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)
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gradient_stops.append(position)
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segment_colors.append(color)
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return Gradient(
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start=(0.0, 1.0), # Bottom of path
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end=(0.0, 0.0), # Top of path
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colors=segment_colors,
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stops=gradient_stops,
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)
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@staticmethod
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def _hsla_to_color(h: float, s: float, l: float, a: float) -> rl.Color:
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rgb = colorsys.hls_to_rgb(h, l, s)
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return rl.Color(
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int(rgb[0] * 255),
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int(rgb[1] * 255),
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int(rgb[2] * 255),
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int(a * 255)
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)
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def draw_rainbow_path(self, rect, path):
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gradient = self.get_gradient()
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draw_polygon(rect, path.projected_points, gradient=gradient)
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