185 lines
No EOL
5.4 KiB
HTML
185 lines
No EOL
5.4 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>Neurameba Generative Art</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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color: #333;
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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: 20px;
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right: 20px;
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font-size: 10px;
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color: #555;
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pointer-events: none;
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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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// 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: 1.08
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};
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// Voronoi implementation
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class VoronoiCell {
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constructor(x, y, points, edges) {
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this.x = x;
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this.y = y;
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this.points = points;
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this.edges = edges;
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this.age = 0;
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this.energy = Math.random();
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}
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draw() {
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if (Math.random() > params.connectedness) return;
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ctx.beginPath();
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ctx.moveTo(this.points[0].x, this.points[0].y);
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for (let i = 1; i < this.points.length; i++) {
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const p = this.points[i];
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ctx.lineTo(p.x, p.y);
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}
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ctx.closePath();
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const hue = this.energy * 360;
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ctx.fillStyle = `hsl(${hue}, 0%, ${20 + this.energy * 30}%)`;
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ctx.fill();
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if (this.points.length > 3) {
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ctx.strokeStyle = `rgba(255, 255, 255, ${0.1 + this.energy * 0.1})`;
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ctx.lineWidth = 0.5 * this.energy;
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ctx.stroke();
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}
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}
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update() {
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this.age++;
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this.energy += params.pulse * 0.01;
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this.energy = Math.min(1, this.energy);
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}
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}
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class VoronoiSystem {
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constructor() {
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this.cells = [];
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this.points = [];
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this.voronoi = null;
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this.lastTime = 0;
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this.init();
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}
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init() {
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const count = 50 + Math.floor(params.density * 100);
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for (let i = 0; i < count; i++) {
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this.points.push({
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x: Math.random() * canvas.width,
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y: Math.random() * canvas.height
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});
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}
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this.updateVoronoi();
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}
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updateVoronoi() {
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this.cells = [];
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// Simple Fortune's algorithm approximation
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for (let i = 0; i < this.points.length; i++) {
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const p1 = this.points[i];
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const neighbors = [];
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for (let j = 0; j < this.points.length; j++) {
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if (i === j) continue;
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const p2 = this.points[j];
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const dx = p1.x - p2.x;
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const dy = p1.y - p2.y;
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const dist = Math.sqrt(dx * dx + dy * dy);
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if (dist < 100 + params.complexity * 50) {
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neighbors.push(p2);
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}
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}
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if (neighbors.length >= 3) {
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this.cells.push(new VoronoiCell(p1.x, p1.y, neighbors, []));
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}
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}
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}
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update(timestamp) {
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const deltaTime = timestamp - this.lastTime;
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this.lastTime = timestamp;
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// Animate points
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for (let i = 0; i < this.points.length; i++) {
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const p = this.points[i];
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p.x += Math.sin(timestamp * 0.001 * params.motion) * Math.random() * 2;
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p.y += Math.cos(timestamp * 0.0015 * params.motion) * Math.random() * 2;
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// Wrap around edges
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if (p.x < 0) p.x = canvas.width;
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if (p.x > canvas.width) p.x = 0;
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if (p.y < 0) p.y = canvas.height;
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if (p.y > canvas.height) p.y = 0;
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}
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this.updateVoronoi();
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// Update and draw cells
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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for (const cell of this.cells) {
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cell.update();
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cell.draw();
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}
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}
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}
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// Initialize system
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const system = new VoronoiSystem();
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// Animation loop
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function animate(timestamp) {
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system.update(timestamp);
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requestAnimationFrame(animate);
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}
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requestAnimationFrame(animate);
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</script>
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</body>
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</html> |