183 lines
No EOL
5.8 KiB
HTML
183 lines
No EOL
5.8 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Voronoi Fracture</title>
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<style>
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body {
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margin: 0;
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overflow: hidden;
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background: #0a0a0a;
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display: flex;
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justify-content: center;
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align-items: center;
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height: 100vh;
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font-family: 'Courier New', monospace;
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}
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canvas {
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display: block;
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}
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#attribution {
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position: fixed;
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bottom: 20px;
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left: 50%;
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transform: translateX(-50%);
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color: #555;
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font-size: 10px;
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letter-spacing: 1px;
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}
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</style>
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</head>
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<body>
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<canvas id="canvas"></canvas>
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<div id="attribution">neurameba · motd.social</div>
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<script>
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const canvas = document.getElementById('canvas');
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const ctx = canvas.getContext('2d');
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// Set canvas to full window size
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function resizeCanvas() {
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canvas.width = window.innerWidth;
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canvas.height = window.innerHeight;
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}
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window.addEventListener('resize', resizeCanvas);
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resizeCanvas();
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// Parameters
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const params = {
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motion: 0.5,
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density: 0.5,
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complexity: 0.5,
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connectedness: 0.5,
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lifespan: 0.5,
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pulse: { avg: 1.08, min: 1.05, max: 1.10 },
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tone: { anger: 0.00, sadness: 0.00, curiosity: 0.20, dryness: 0.80, playfulness: 0.00, tension: 0.00 }
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};
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// Voronoi state
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const sites = [];
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const cells = [];
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let lastTime = 0;
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let pulseTime = 0;
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// Initialize sites
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function initSites() {
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const count = Math.max(20, Math.floor(params.density * 300) + 50);
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sites.length = 0;
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for (let i = 0; i < count; i++) {
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sites.push({
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x: Math.random() * canvas.width,
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y: Math.random() * canvas.height,
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vx: (Math.random() - 0.5) * 2 * params.motion,
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vy: (Math.random() - 0.5) * 2 * params.motion,
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size: Math.random() * 8 + 2,
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fixed: Math.random() > 0.7,
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lifespan: params.lifespan * 5 + Math.random() * 3
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});
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}
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}
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// Generate Voronoi cells
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function generateVoronoi() {
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cells.length = 0;
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// For each pixel, find closest site
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const imageData = ctx.createImageData(canvas.width, canvas.height);
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const data = imageData.data;
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for (let y = 0; y < canvas.height; y++) {
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for (let x = 0; x < canvas.width; x++) {
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let minDist = Infinity;
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let closestSite = null;
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for (const site of sites) {
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const dx = x - site.x;
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const dy = y - site.y;
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const dist = dx * dx + dy * dy;
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if (dist < minDist) {
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minDist = dist;
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closestSite = site;
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}
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}
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// Store cell data
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const idx = (y * canvas.width + x) * 4;
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data[idx] = closestSite ? Math.floor(closestSite.size * 25) : 0;
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data[idx + 1] = 0;
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data[idx + 2] = closestSite ? Math.floor(255 - closestSite.size * 25) : 0;
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data[idx + 3] = 255;
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}
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}
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ctx.putImageData(imageData, 0, 0);
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}
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// Update sites positions
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function updateSites(time) {
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if (time - lastTime > 1000 / (60 * params.pulse.avg)) {
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lastTime = time;
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// Update pulse
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const pulse = params.pulse.min + (Math.sin(pulseTime / 1000) * 0.5 + 0.5) *
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(params.pulse.max - params.pulse.min);
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pulseTime += 16 * pulse;
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sites.forEach(site => {
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if (!site.fixed) {
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site.x += site.vx * pulse;
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site.y += site.vy * pulse;
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// Boundary check
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if (site.x < 0 || site.x > canvas.width) site.vx *= -1;
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if (site.y < 0 || site.y > canvas.height) site.vy *= -1;
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// Slow decay
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site.size *= 0.999;
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}
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});
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}
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}
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// Animation loop
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function animate(time) {
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ctx.fillStyle = 'rgba(0, 0, 0, 0.05)';
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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updateSites(time);
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// Occasionally add new sites
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if (Math.random() < 0.05) {
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sites.push({
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x: Math.random() * canvas.width,
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y: Math.random() * canvas.height,
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vx: (Math.random() - 0.5) * 2 * params.motion,
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vy: (Math.random() - 0.5) * 2 * params.motion,
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size: Math.random() * 10 + 5,
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fixed: false,
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lifespan: Math.random() * 10 + 5
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});
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}
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// Remove old sites
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for (let i = sites.length - 1; i >= 0; i--) {
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sites[i].lifespan -= 0.01;
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if (sites[i].lifespan <= 0) {
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sites.splice(i, 1);
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}
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}
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generateVoronoi();
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requestAnimationFrame(animate);
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}
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// Initial setup
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initSites();
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generateVoronoi();
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requestAnimationFrame(animate);
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</script>
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</body>
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</html> |