175 lines
No EOL
5.5 KiB
HTML
175 lines
No EOL
5.5 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>voronameba</title>
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<style>
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body { margin: 0; overflow: hidden; background: #000; }
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canvas { display: block; }
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#attribution { position: absolute; bottom: 10px; right: 10px; color: #333; font-family: monospace; font-size: 10px; }
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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 resize() {
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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', resize);
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resize();
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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: 1.12, min: 0.9, max: 1.3 }
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};
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// Palette (dryness=monochrome, curiosity=teals)
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const palette = [
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'#f0f0f0', // light teal-like
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'#d0d0d0',
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'#a0a0a0',
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'#707070',
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'#404040'
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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 time = 0;
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let pulse = params.pulse.avg;
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// Initialize sites
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function initSites() {
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const count = Math.floor(params.density * 200) + 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) * params.motion * 2,
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vy: (Math.random() - 0.5) * params.motion * 2,
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life: 1
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});
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}
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calculateVoronoi();
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}
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// Basic Voronoi calculation (simplified)
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function calculateVoronoi() {
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cells.length = 0;
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for (const site of sites) {
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const cell = {
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site: site,
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points: [],
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edges: []
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};
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// Find neighboring sites (simplified)
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const neighbors = [];
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for (const other of sites) {
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if (other !== site) {
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const dx = other.x - site.x;
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const dy = other.y - site.y;
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const dist = Math.sqrt(dx*dx + dy*dy);
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if (dist < 100) {
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neighbors.push(other);
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}
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}
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}
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// Create cell boundary points (simplified)
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for (const neighbor of neighbors) {
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const dx = neighbor.x - site.x;
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const dy = neighbor.y - site.y;
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const dist = Math.sqrt(dx*dx + dy*dy);
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const steps = Math.floor(dist * 0.2);
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for (let i = 0; i <= steps; i++) {
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const t = i / steps;
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cell.points.push({
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x: site.x + dx * t,
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y: site.y + dy * t
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});
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}
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}
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cells.push(cell);
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}
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}
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// Update function
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function update() {
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// Pulse effect
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pulse = params.pulse.min + (Math.sin(time * 0.001) + 1) * 0.5 *
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(params.pulse.max - params.pulse.min);
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// Update sites
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for (const site of sites) {
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site.x += site.vx * params.motion * 0.1;
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site.y += site.vy * params.motion * 0.1;
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// Wrap around
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if (site.x < 0) site.x = canvas.width;
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if (site.x > canvas.width) site.x = 0;
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if (site.y < 0) site.y = canvas.height;
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if (site.y > canvas.height) site.y = 0;
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}
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// Recalculate Voronoi
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calculateVoronoi();
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time++;
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// Fade effect
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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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}
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// Draw function
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function draw() {
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// Draw cells
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for (const cell of cells) {
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// Only draw if we have points
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if (cell.points.length > 2) {
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ctx.beginPath();
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ctx.moveTo(cell.points[0].x, cell.points[0].y);
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for (let i = 1; i < cell.points.length; i++) {
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ctx.lineTo(cell.points[i].x, cell.points[i].y);
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}
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ctx.closePath();
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// Color based on density/complexity
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const idx = Math.floor((cell.points.length / 200) * palette.length);
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ctx.fillStyle = palette[idx % palette.length];
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ctx.fill();
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// Outline
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ctx.strokeStyle = '#111';
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ctx.lineWidth = 0.5;
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ctx.stroke();
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}
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}
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}
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// Animation loop
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function animate() {
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update();
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draw();
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requestAnimationFrame(animate);
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}
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// Start
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initSites();
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animate();
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</script>
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</body>
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</html> |