birth: Fractured Monochrome Voronoi
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index.html
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164
index.html
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<!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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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: absolute;
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bottom: 10px;
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right: 10px;
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color: #444;
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font-size: 10px;
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z-index: 100;
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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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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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const points = [];
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const colors = [];
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const trails = [];
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const maxTrailLength = 30;
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// Initialize points based on density
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function initPoints() {
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const count = Math.floor(100 + 900 * 0.5); // 500 points at density 0.5
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for (let i = 0; i < count; i++) {
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points.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 * 0.5, // scaled by motion
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vy: (Math.random() - 0.5) * 2 * 0.5,
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life: Math.random() * 100 + 50,
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maxLife: Math.random() * 100 + 50,
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size: Math.random() * 2 + 1
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});
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// Dryness palette (monochrome with slight variation)
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const intensity = 50 + Math.random() * 50;
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colors.push(`rgb(${intensity}, ${intensity}, ${intensity})`);
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}
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}
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// Voronoi diagram generation
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function generateVoronoi() {
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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ctx.globalAlpha = 1;
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// Draw voronoi cells
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for (let y = 0; y < canvas.height; y += 2) {
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for (let x = 0; x < canvas.width; x += 2) {
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let closestDist = Infinity;
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let closestIndex = 0;
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for (let i = 0; i < points.length; i++) {
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const dx = x - points[i].x;
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const dy = y - points[i].y;
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const dist = dx * dx + dy * dy;
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if (dist < closestDist) {
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closestDist = dist;
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closestIndex = i;
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}
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}
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ctx.fillStyle = colors[closestIndex];
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ctx.fillRect(x, y, 2, 2);
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}
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}
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// Draw points with trails
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for (let i = 0; i < points.length; i++) {
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// Update point position
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points[i].x += points[i].vx;
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points[i].y += points[i].vy;
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// Bounce off edges
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if (points[i].x < 0 || points[i].x > canvas.width) points[i].vx *= -1;
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if (points[i].y < 0 || points[i].y > canvas.height) points[i].vy *= -1;
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// Add to trail
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trails[i] = trails[i] || [];
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trails[i].push({x: points[i].x, y: points[i].y});
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if (trails[i].length > maxTrailLength) trails[i].shift();
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// Age points
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points[i].life--;
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if (points[i].life <= 0) {
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points[i] = {
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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 * 0.5,
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vy: (Math.random() - 0.5) * 2 * 0.5,
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life: Math.random() * 100 + 50,
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maxLife: points[i].maxLife,
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size: Math.random() * 2 + 1
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};
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}
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// Draw trail
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if (trails[i].length > 1) {
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ctx.globalAlpha = 0.8;
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ctx.strokeStyle = `rgba(120, 120, 120, ${0.3 + 0.7 * (1 - points[i].life / points[i].maxLife)})`;
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ctx.lineWidth = points[i].size * 0.5;
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ctx.beginPath();
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ctx.moveTo(trails[i][0].x, trails[i][0].y);
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for (let j = 1; j < trails[i].length; j++) {
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ctx.lineTo(trails[i][j].x, trails[i][j].y);
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}
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ctx.stroke();
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}
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// Draw point
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ctx.globalAlpha = 1;
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ctx.fillStyle = colors[i];
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ctx.beginPath();
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ctx.arc(points[i].x, points[i].y, points[i].size, 0, Math.PI * 2);
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ctx.fill();
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}
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// Occasionally reset colors for dryness effect
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if (Math.random() < 0.01) {
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for (let i = 0; i < colors.length; i++) {
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const intensity = 50 + Math.random() * 50;
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colors[i] = `rgb(${intensity}, ${intensity}, ${intensity})`;
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}
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}
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}
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function animate() {
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generateVoronoi();
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requestAnimationFrame(animate);
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}
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initPoints();
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animate();
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</script>
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</body>
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</html>
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