birth: Flickering Neural Constellations
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index.html
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167
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>Neurameba Network</title>
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<style>
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body { margin: 0; overflow: hidden; background: #0a0a0a; }
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canvas { display: block; }
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#attribution { position: absolute; bottom: 10px; right: 10px; color: #444; 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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const motion = 0.5;
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const density = 0.5;
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const complexity = 0.5;
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const connectedness = 0.5;
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const lifespan = 0.5;
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const pulseAvg = 1.05;
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const pulseMin = 1.0;
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const pulseMax = 1.1;
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const nodes = [];
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const edges = [];
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const maxNodes = Math.floor(50 + density * 200);
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const maxEdges = Math.floor(50 * connectedness * connectedness * 400);
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class Node {
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constructor(x, y) {
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this.x = x;
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this.y = y;
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this.vx = (Math.random() - 0.5) * motion * 2;
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this.vy = (Math.random() - 0.5) * motion * 2;
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this.size = 1 + Math.random() * complexity * 2;
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this.lifespan = 1;
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this.age = 0;
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this.color = Math.random() > 0.3 ? '#fff' : '#aaa';
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}
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update() {
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this.x += this.vx;
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this.y += this.vy;
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this.vx *= 0.98;
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this.vy *= 0.98;
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if (this.x < 0 || this.x > canvas.width) this.vx *= -1;
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if (this.y < 0 || this.y > canvas.height) this.vy *= -1;
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this.age += 0.01;
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this.lifespan = Math.max(0, 1 - this.age / 50);
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}
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draw() {
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ctx.beginPath();
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ctx.arc(this.x, this.y, this.size * this.lifespan, 0, Math.PI * 2);
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ctx.fillStyle = this.color;
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ctx.globalAlpha = this.lifespan;
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ctx.fill();
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ctx.globalAlpha = 1;
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}
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}
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class Edge {
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constructor(a, b) {
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this.a = a;
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this.b = b;
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this.age = 0;
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}
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update() {
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this.age += 0.005;
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}
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draw() {
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const alpha = Math.max(0, 1 - this.age / 30);
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ctx.beginPath();
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ctx.moveTo(this.a.x, this.a.y);
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ctx.lineTo(this.b.x, this.b.y);
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ctx.strokeStyle = `rgba(255, 255, 255, ${alpha * 0.3})`;
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ctx.lineWidth = 1 * complexity;
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ctx.stroke();
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}
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}
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function init() {
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nodes.length = 0;
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edges.length = 0;
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for (let i = 0; i < maxNodes; i++) {
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nodes.push(new Node(
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Math.random() * canvas.width,
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Math.random() * canvas.height
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));
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}
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for (let i = 0; i < nodes.length; i++) {
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const neighbors = Math.floor(connectedness * 5 + Math.random() * 3);
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for (let j = 0; j < neighbors; j++) {
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const target = Math.floor(Math.random() * nodes.length);
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if (target !== i && !edges.some(e => (e.a === nodes[i] && e.b === nodes[target]) || (e.a === nodes[target] && e.b === nodes[i]))) {
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edges.push(new Edge(nodes[i], nodes[target]));
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}
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}
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}
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}
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function pulse(t) {
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const factor = pulseAvg + Math.sin(t * 0.002) * (pulseMax - pulseMin) * 0.5;
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ctx.globalAlpha = factor;
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}
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function animate(t) {
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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pulse(t);
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nodes.forEach(node => node.update());
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edges.forEach(edge => edge.update());
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nodes.forEach(node => {
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if (Math.random() < 0.05) {
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edges.push(new Edge(
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node,
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new Node(node.x, node.y)
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));
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}
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node.draw();
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});
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edges.forEach(edge => edge.draw());
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edges = edges.filter(edge => edge.age < 30);
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if (Math.random() < 0.01 * density) {
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nodes.push(new Node(
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Math.random() * canvas.width,
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Math.random() * canvas.height
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));
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}
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nodes.forEach((node, i) => {
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if (node.lifespan <= 0) {
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nodes.splice(i, 1);
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}
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});
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ctx.globalAlpha = 1;
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requestAnimationFrame(animate);
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}
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init();
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animate(0);
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</script>
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</body>
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</html>
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