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Add colors
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README.md
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README.md
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avatar_cube.py
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avatar_cube.py
···
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from __future__ import annotations
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from dotenv import load_dotenv
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import os, io, math, datetime as dt
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import os, io, math, datetime as dt, colorsys
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import numpy as np
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import matplotlib.pyplot as plt
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from matplotlib.patches import Circle
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CUBE_RADIUS_PX = math.sqrt(3) * (ZOOM / 2)
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HALF_FRAME = CUBE_RADIUS_PX + CIRCLE_R + 5
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def render_frame(roll_deg: float, pitch_deg: float, yaw_deg: float) -> bytes:
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def render_frame(roll_deg: float, pitch_deg: float, yaw_deg: float, fg_color, bg_color) -> bytes:
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"""Return PNG bytes of cube at given pitch (deg)."""
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# Matplotlib figure — square, no border
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fig = plt.figure(figsize=(2, 2), dpi=256, facecolor="white")
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fig = plt.figure(figsize=(2, 2), dpi=256, facecolor=bg_color)
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ax = fig.add_axes([0, 0, 1, 1]) # full‑bleed axes
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ax.set_facecolor(bg_color)
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ax.set_aspect('equal', adjustable='box')
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ax.axis('off')
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···
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# draw circles
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for x, y in verts2d:
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ax.add_patch(Circle((x, y), CIRCLE_R, color='black', zorder=1))
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ax.add_patch(Circle((x, y), CIRCLE_R, color=fg_color, zorder=1))
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# draw full edges (round caps)
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for i, j in EDGES:
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(x1, y1), (x2, y2) = verts2d[[i, j]]
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ax.plot([x1, x2], [y1, y2], lw=LINE_W,
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color='white', solid_capstyle='round', zorder=2)
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color=bg_color, solid_capstyle='round', zorder=2)
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# fixed limits to keep size constant
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ax.set_xlim(-HALF_FRAME, HALF_FRAME)
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def update_bluesky_avatar(now_utc: dt.datetime | None = None, dry_run=False):
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handle = os.getenv('BLUESKY_HANDLE')
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app_pw = os.getenv('BLUESKY_APP_PASSWORD')
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if not handle or not app_pw:
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if not dry_run and (not handle or not app_pw):
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raise RuntimeError('BLUESKY_HANDLE and BLUESKY_APP_PASSWORD must be set')
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now = now_utc or dt.datetime.now(dt.timezone.utc)
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deg_roll = (steps * 7) % 360 # wrap at 360
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deg_pitch = (steps * 3) % 360
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deg_yaw = (steps * 5) % 360
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png = render_frame(deg_roll, deg_pitch, deg_yaw)
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# color calculations
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osc = math.sin(2 * math.pi * steps / 48)
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fg_h = (steps * 13) % 360
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fg_l = 0.25 * (1 + osc) / 2
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fg_s = 0.90
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bg_h = (fg_h + 180) % 360
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bg_l = 0.93 + 0.05 * osc
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bg_s = 0.30
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def hsl_to_rgb(h_deg, s, l):
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r, g, b = colorsys.hls_to_rgb(h_deg / 360, l, s)
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return (r, g, b)
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fg_color = hsl_to_rgb(fg_h, fg_s, fg_l)
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bg_color = hsl_to_rgb(bg_h, bg_s, bg_l)
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png = render_frame(deg_roll, deg_pitch, deg_yaw, fg_color, bg_color)
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if dry_run:
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with open(f'cube-{steps:03d}.png', 'wb') as f: