Uncommon web

<Gauge value={s.speed} min={0} max={14} variant="dial" size={190}
  label={hot ? "over rated speed" : "rated 12.0"} color={hot ? "red" : "ink"}
  trackColor="grey" fill="gradient" cell={2} />

<BarChart data={s.bars} x="t" layout="stacked" highlight="last" height={176}
  series={[{ label: "Good copies", value: "copies", color: "ink" },
           { label: "Spoils", value: "spoils", color: "red" }]}
  fill="gradient" legend={false} animate={false} cell={2} />

<Heatmap mode="matrix" data={s.heat} rows={UNITS} columns={columns}
  steps={4} max={4} unit={{ one: "fault", other: "faults" }} color="red" />

<Dithering
  colorBack={ink.paper}
  colorFront={ink.ink}
  shape={shape}            // sphere | simplex | warp | dots | wave | ripple | swirl
  type={type}              // 2x2 | 4x4 | 8x8 | random
  size={size}
  speed={playing ? 0.6 + steer.press * 1.4 : 0}
  scale={(objectShape ? 0.72 : 1.1) * (1 + steer.press * 0.9)}
  offsetX={steer.x}
  offsetY={steer.y}
  rotation={steer.x * 25}
/>

function buildEffect() {
  const screen = state.mode === "screen";
  // Paper: white sky prints as blank, shadows take the most ink.
  // Screen: black sky is blank, highlights take the densest glyphs.
  renderer.setClearColor(screen ? 0x000000 : 0xffffff, 1);
  if (effect) effect.domElement.remove();
  effect = new AsciiEffect(renderer, CHARSETS[state.charset], { invert: screen, resolution: RES });
  host.appendChild(effect.domElement);
  resize();
}

stage.addEventListener("pointermove", (e) => {
  const r = stage.getBoundingClientRect();
  const nx = (e.clientX - r.left) / r.width * 2 - 1, ny = (e.clientY - r.top) / r.height * 2 - 1;
  key.position.set(nx * 7, -ny * 5, 6);   // the lamp follows the pointer
});

import CanvasDither from 'canvas-dither';

const base = sctx.getImageData(0, 0, w, h);
const copy = () => new ImageData(new Uint8ClampedArray(base.data), w, h);
const fs = CanvasDither.floydsteinberg(copy());
const at = CanvasDither.atkinson(copy());
const by = CanvasDither.bayer(copy(), 128);
for (let y = 0; y < h; y++) for (let x = 0; x < w; x++) {
  const i = (y * w + x) * 4;
  const v = (x < a ? fs : x < b ? at : by).data[i];
  const c = v > 127 ? paper : ink;            // recolour the 1-bit result
  o[i] = c[0]; o[i + 1] = c[1]; o[i + 2] = c[2]; o[i + 3] = 255;
}

import { applyPaletteSync, utils } from 'image-q';

const palette = new utils.Palette();
for (const hex of PRESETS[preset].colors) {
  const [r, g, b] = hexToRgb(hex);
  palette.add(utils.Point.createByRGBA(r, g, b, 255));
}
const pc = utils.PointContainer.fromHTMLCanvasElement(src);
const q = applyPaletteSync(pc, palette, {
  colorDistanceFormula: 'euclidean-bt709-noalpha',
  imageQuantization: quant, // 'atkinson' | 'riemersma' | 'stucki' ...
});
octx.putImageData(new ImageData(new Uint8ClampedArray(q.toUint8Array()), w, h), 0, 0);

import { EffectComposer, RenderPass, EffectPass, ASCIIEffect, ASCIITexture, PixelationEffect } from 'postprocessing';

const composer = new EffectComposer(renderer);
composer.addPass(new RenderPass(scene, camera));
// ASCIITexture builds its font as `${fontSize}px ${font}`: a weight prefix gives a bold atlas
const makeTexture = chars => new ASCIITexture({
  characters: chars, font: '"Space Mono"', fontSize: '700 62', size: 1024, cellCount: 16,
});
const INKS = { cream: 0xfffbe8, acid: 0xe8ff3a, scene: null };
const ascii = new ASCIIEffect({ asciiTexture: makeTexture(' .:-=+*#%@'), cellSize: 12, color: INKS.cream });
const asciiPass = new EffectPass(camera, ascii);
const pixelPass = new EffectPass(camera, new PixelationEffect(11));
composer.addPass(asciiPass); composer.addPass(pixelPass);
// swap glyph ramps and ink live
ascii.asciiTexture = makeTexture(' /\\|XWM');
ascii.color = INKS.acid;

import { CRTFilter, OldFilmFilter, RGBSplitFilter } from 'pixi-filters';

const crt = new CRTFilter({ curvature: 2.5, lineWidth: 1.6, noise: 0.18, vignetting: 0.32 });
const film = new OldFilmFilter({ sepia: 0.12, scratch: 0.45, scratchDensity: 0.35 });
const split = new RGBSplitFilter({ red: { x: -3, y: 0 }, green: { x: 0, y: 1 }, blue: { x: 3, y: 0 } });
screen.filters = [split, film, crt];

app.ticker.add(t => {
  app.renderer.render({ container: world, target: rt });
  screen.tilePosition.y = roll;      // vertical hold
  crt.time += t.deltaMS / 1000 * 2.4; crt.seed = Math.random();
  film.seed = Math.random();
});

const globe = createGlobe(canvas, {
  devicePixelRatio: dpr, width: size, height: size,
  phi, theta, dark: 1, diffuse: 1.15, mapSamples: 22000, mapBrightness: 5.2,
  baseColor: [0.2, 0.19, 0.17], glowColor: [0.86, 0.82, 0.74],
  markers, arcs, arcColor: MUSTARD, arcWidth: 0.9, arcHeight: 0.32,
});
// each marker id becomes a CSS anchor: --cobe-<id>
tag.style.positionAnchor = `--cobe-${c.id}`;
tag.style.opacity = `var(--cobe-visible-${c.id}, 0)`;
function frame() {
  if (target) { phi += (target[0] - phi) * 0.075; theta += (target[1] - theta) * 0.075; }
  globe.update({ phi, theta });
  raf = requestAnimationFrame(frame);
}

const flowmap = new Flowmap(gl, { falloff: 0.32, dissipation: 0.965, size: 256 });
// fragment: smear the paper by the stored velocity
vec3 flow = texture2D(tFlow, vUv).rgb;
vec2 push = flow.xy * .2 * uCover;
float r = texture2D(tWall, uv - push * 1.06).r;
float g = texture2D(tWall, uv - push).g;
float b = texture2D(tWall, uv - push * .95).b;
// per frame
flowmap.mouse.copy(mouse);
flowmap.velocity.lerp(velocity, velocity.len() ? 0.5 : 0.1);
flowmap.update();
renderer.render({ scene: mesh });

import * as THREE from 'three';
import WAVES from 'vanta/dist/vanta.waves.min';
const fx = (m) => (typeof m === 'function' ? m : m.default);
function tune(name) {
  const ch = CHANNELS[name];
  if (effect) effect.destroy();
  effect = ch.make({
    el, THREE, mouseControls: true, touchControls: true,
    minHeight: 200, minWidth: 200, scale: 1, ...ch.opts,
  });
}
// uw:pause
cancelAnimationFrame(effect.req);  // resume: effect.animationLoop()

<MeshGradient className="mesh"
        colors={grade.colors}
        distortion={Math.min(1, grade.distortion + p.d * 0.4)}
        swirl={Math.min(1, grade.swirl + p.d * 0.5)}
        grainMixer={grade.grainMixer} grainOverlay={grade.grainOverlay}
        offsetX={grade.ox - p.x * 0.35} offsetY={(grade.oy || 0) + p.y * 0.35} rotation={grade.rot + p.x * 30}
        scale={1.15 + p.d * 0.1}
        speed={paused ? 0 : 0.35 + p.d * 1.2}
        fit="cover" style={{ position: 'absolute', inset: 0 }} />

const REELS = [
  { name: 'GrainGradient', C: GrainGradient, presets: grainGradientPresets, note: 'noise-dusted gradient shapes' },
  { name: 'Metaballs', C: Metaballs, presets: metaballsPresets, note: 'fused blobs, analytic field' },
  { name: 'GodRays', C: GodRays, presets: godRaysPresets, note: 'volumetric light from a point' },
  { name: 'Warp', C: Warp, presets: warpPresets, note: 'iterated domain-warp of a pattern' },
  { name: 'Voronoi', C: Voronoi, presets: voronoiPresets, note: 'animated cell tessellation' },
  { name: 'Swirl', C: Swirl, presets: swirlPresets, note: 'twisted concentric bands' },
  { name: 'SmokeRing', C: SmokeRing, presets: smokeRingPresets, note: 'noise-eroded ring of smoke' },
  { name: 'NeuroNoise', C: NeuroNoise, presets: neuroNoisePresets, note: 'neural-net-like glowing filaments' },
];
// …
        <C key={reel.name + pi} {...params.p}
          offsetX={(params.p.offsetX || 0) + lens.x * -0.25}
          offsetY={(params.p.offsetY || 0) + lens.y * 0.25}
          speed={paused ? 0 : params.base}
          style={{ position: 'absolute', inset: 0 }} />

function Projector({ paused }) {
  const setFrameloop = useThree(s => s.setFrameloop);
  useEffect(() => { setFrameloop(paused ? 'never' : 'always'); }, [paused, setFrameloop]);
  return null;
}
// …
      <ShaderGradientCanvas style={{ position: 'absolute', inset: 0 }} pixelDensity={1} fov={45} pointerEvents="none" lazyLoad={false}>
        <Projector paused={paused} />
        <ShaderGradient control="props" lightType="3d" animate={paused ? 'off' : 'on'} {...g}
          rotationY={g.rotationY + tilt.x * 24}
          rotationX={g.rotationX + tilt.y * 18}
          uStrength={g.uStrength * (1 + Math.abs(tilt.x) * 0.6)} />
      </ShaderGradientCanvas>

const regl = createREGL({ gl });
fbos.forEach((fbo, i) => paint({ scene: i, seed: seed + i, fbo }));

// regl texture → the gl-texture2d-like object gl-transition expects
const asTex = fbo => ({ shape: [W, H], bind(unit) { gl.activeTexture(gl.TEXTURE0 + unit); gl.bindTexture(gl.TEXTURE_2D, fbo.color[0]._texture.texture); return unit; } });
const texes = fbos.map(asTex);
const getT = name => {
  if (!cache.has(name)) { gl.bindBuffer(gl.ARRAY_BUFFER, tri); cache.set(name, createTransition(gl, transitions.find(t => t.name === name), { resizeMode: 'cover' })); }
  return cache.get(name);
  getT(fx).draw(cutting || scrub !== null ? ease(prog) : 0, texes[cur], texes[next], canvas.width, canvas.height, PARAMS[fx] || {});

Splitting({ target: ln, by: 'chars' }); // writes --char-index / --word-index on every span

/* style.css */
@property --w { syntax: '<number>'; inherits: false; initial-value: 100; }
.head .char {
  font-variation-settings: "wdth" calc(var(--w) - var(--near) * 30), "wght" calc(var(--g) + var(--near) * 200);
}
[data-mode=wave] .head .char {
  animation-name: wave;
  animation-delay: calc(var(--char-index) * -110ms - var(--line-index) * 300ms);
}
[data-mode=press] .head .char { animation-delay: calc(var(--word-index) * var(--beat) / 2); }
@keyframes wave { 0%,100% { --w: 56; --g: 850 } 50% { --w: 148; --g: 300 } }

const v = new Vara('#pen', fontUrl, blocks, { color: ink, autoAnimation: false, queued: false });
// Vara hands each stroke to animate(); we drive it from our own pausable clock
v.animate = (elem, duration, delay, final) => {
  const bi = containers.findIndex(c => c.contains(elem));
  tweens.push({ elem, start: blockStart[bi] + delay, dur: duration,
    from: parseFloat(elem.style.strokeDashoffset), to: Number(final) || 0 });
};
v.ready(() => {
  containers = blocks.map((_, i) => v.get(i).container);
  blocks.forEach((_, i) => v.draw(i));
});

import 'number-flow';
import 'number-flow/group';
import { continuous } from 'number-flow';

for (const f of Object.values(flows)) {
  f.el.format = f.fmt;            // e.g. { style: 'currency', currency: 'USD' }
  f.el.trend = (a, b) => Math.sign(b - a);
  if (f.digits) f.el.digits = f.digits; // seconds: { 1: { max: 5 } }
  f.el.plugins = [continuous];
  f.el.update(f.v);
}
$('mm').trend = -1; $('ss').trend = -1; // a countdown always rolls downward

import 'split-flap-elements';

const c = document.createElement('sfe-cell');
c.setAttribute('name', 'rem');
c.setAttribute('span', 6);
c.reel = [' ', 'ON TIME', 'BOARDING', 'DELAYED', 'LAST CALL', 'GONE'];
board.append(c);

function show(board, values, order = 'forward', stagger = 45) {
  board.stop();
  board.sequence = [{ values, settleOrder: order, stagger, hold: 600,
                      timing: { flipDuration: 38, spinDuration: 700 } }];
  board.play();
}
show(row, { t0: '2', t1: '3', d0: 'C', d1: 'A', rem: 'BOARDING' }, 'center-out');
document.addEventListener('sfe-settle', e => { /* colour remark by meaning */ });

import 'segment-display/dist/bundle.min.js';

const SIXTEEN = Object.getPrototypeOf(donors[0].segment);
const ElementArray = SIXTEEN.ElementArray.constructor;
const seg = n => 1 << n;               // a1 a2 b c d1 d2 e f g1 g2 h i j k l m
SIXTEEN.CharacterMasks['/'] = seg(12) | seg(15);

const marquee = Object.create(SIXTEEN);
marquee.ElementArray = new ElementArray(12);
marquee.SegmentWidth = stroke;          // pointer y
marquee.CalcPoints();
ctx.setTransform(dpr, 0, -Math.tan(slant) * dpr, dpr, skewX, 0); // pointer x
marquee.ElementArray.SetText(frameText(), marquee.CharacterMasks);
marquee.Draw(canvas, marquee.ElementArray.Elements);

import { createHighlighterCore } from 'shiki/core';
import { createJavaScriptRegexEngine } from 'shiki/engine/javascript';
import javascript from '@shikijs/langs/javascript';
import houston from '@shikijs/themes/houston';
import laserwave from '@shikijs/themes/laserwave';

const hl = await createHighlighterCore({
  themes: [houston, laserwave /* … */], langs: [javascript],
  engine: createJavaScriptRegexEngine(),
});
const { tokens, fg, bg } = hl.codeToTokens(POEM, {
  lang: 'javascript', theme: 'laserwave', includeExplanation: 'scopeName',
});
for (const t of tokens.flat())
  span(t.content, t.color, t.explanation[0].scopes.map(s => s.scopeName));

import baffle from 'baffle';
import fitty from 'fitty';

fits = spans.map(s => fitty(s, { maxSize: 2000, multiLine: false, observeMutations: false }));
fits.forEach(f => f.fit({ sync: true }));
const want = spans.map(s => parseFloat(s.style.fontSize));
// share the height: short lines get what they ask for, the rest split what's left
[...want.keys()].sort((a, b) => want[a] - want[b])
  .forEach(i => { alloc[i] = Math.min(want[i], budget / left); budget -= alloc[i]; left--; });
fits = spans.map((s, i) => fitty(s, { maxSize: alloc[i], observeMutations: false }));

active = spans.map((s, n) =>
  baffle(s, { characters: '█▓▒░▚▞▙▟', speed: 55 })
    .start().reveal(700 + n * 120, 150 + n * 260));

new Bar({
  ...common, element: '#bars', data: { labels: months, values: cans },
  title: 'Cans emptied per month', color: HI, highlight: RED, stroke: INK, strokeWidth: 1.4, fillWeight: state.fill === 'dots' ? 1.2 : 1.6,
  axisStrokeWidth: 1, axisRoughness: 0.6, padding: 0.22, yLabel: 'cans',
  margin: { top: 48, right: 14, bottom: 46, left: 54 },
}),
new Donut({
  ...common, element: '#donut', data: july,
  title: s ? 'July: 63 cans' : 'Where July’s 63 cans went', colors: [HI, BLUE, INK, RED, GREEN, SAND], highlight: '#fffdf3', strokeWidth: 1.4, fillWeight: 1.4,
  roughness: Math.min(state.rough * 1.4, 6), legend: !s || true, legendPosition: 'right',
  margin: { top: 44, right: 132, bottom: 10, left: 6 },
}),

beat: {
  type: 'Line',
  cfg: {
    title: 'How good the beat is, by hour of the session', short: 'How good the beat is',
    xLabel: 'time', yLabel: 'heat (self-reported)',
    data: {
      labels: ['9pm', '10', '11', '12am', '1', '2', '3', '4', '5', 'noon'],
      datasets: [
        { label: 'me', data: [3, 4, 5.5, 7, 8.2, 9.3, 9.8, 9.9, 9.6, 1.5] },
        { label: 'my engineer', data: [3, 3.4, 3.8, 4, 3.8, 3.4, 2.8, 2, 1.2, 2] },
      ],
    },
    options: { yTickCount: 4, legendPosition: upLeft },
  },
},
// ...
new chartXkcd[def.type](svg, cfg);

const L = [
  [[232, 302], [236, 352]],
  [[278, 354], [276, 302], [336, 352], [338, 300]],
  [[384, 300], [384, 354]], [[436, 296], [390, 327], [440, 356]],
];
const letters = L.map((p) => poly(p, 0.8)).join('');
add(letters, { start: 240, dur: 40, w: 30 });
add(letters, { start: 262, dur: 40, w: 21, color: '#e9d9b8' });
// ...
viv = new Vivus(ink, {
  type: state.type,
  duration: state.type === 'oneByOne' ? 300 : 210,
  start: 'manual',
  pathTimingFunction: Vivus[state.timing],
  animTimingFunction: Vivus.EASE_OUT,
}, () => syncWash());

import 'wired-elements';

$('#room').addEventListener('selected', e => { state.room = e.detail.selected; update(); });
$('#hours').addEventListener('change', e => { state.hours = e.detail.value; update(); });
document.querySelectorAll('wired-checkbox').forEach(c =>
  c.addEventListener('change', e => { state[c.dataset.k] = e.detail.checked; update(); }));

// pointer: hovering any control makes rough.js re-draw it, so the pencil lines "boil" under your hand
function resketch(list) { list.forEach(el => el.wiredRender && el.wiredRender(true)); }
document.addEventListener('pointerover', e => {
  const el = e.target.closest && e.target.closest('wired-button,wired-checkbox,wired-radio,wired-slider,wired-toggle,wired-input,wired-progress');
  if (el) resketch([el]);
});

window.EXCALIDRAW_ASSET_PATH = new URL('../excalidraw-assets/', window.location.href).href;

sk.push({
  type: 'rectangle', id: 'sec' + i, x, y: 100, width: w, height: 92,
  backgroundColor: bg, fillStyle: fill, strokeColor: INK, strokeWidth: 2, roughness: 1,
  label: { text: `${name}\n${bars} bars`, fontSize: bars >= 8 ? 20 : 13, fontFamily: FF },
});
const els = convertToExcalidrawElements(sk, { regenerateIds: false });

// pill: rewrite roughness / fillStyle on every element in one scene update
const els = api.getSceneElements().map(el => {
  if (el.id === 'playhead') return el;
  const p = {};
  if ('roughness' in patch) p.roughness = patch.roughness;
  if (patch.fill && el.type === 'rectangle' && el.id.startsWith('sec') && el.fillStyle !== 'solid') p.fillStyle = patch.fill;
  return Object.keys(p).length ? newElementWith(el, p) : el;
});
api.updateScene({ elements: els, captureUpdate: CaptureUpdateAction.IMMEDIATELY });

import rough from 'roughjs';
const rc = rough.svg(svg);
const opt = (o = {}) => ({ roughness: rough_, bowing, seed: seed + (o.k || 0), stroke: INK, strokeWidth: 1, ...o });

ROOMS.forEach((r, i) => {
  const on = hover === r.id;
  const node = rc.rectangle(r.x, r.y, r.w, r.h, opt({
    fill: on ? GOLD : 'rgba(233,241,255,.55)', fillStyle: r.fill, hachureAngle: r.angle, hachureGap: r.gap,
    fillWeight: on ? 1.6 : 0.9, strokeWidth: 1.6, k: 10 + i * 3, dashOffset: 5, dashGap: 11, zigzagOffset: r.gap * 0.7,
  }));
  node.classList.add('room'); node.dataset.id = r.id;
  g.appendChild(node);
});
// boil: re-seed the hand ~6x/s, like a pencil test on the light box
if (!boil || t - last < 160) return;
last = t; seed = (seed % 3) + 7 + 1; draw();