217 lines
No EOL
7 KiB
HTML
217 lines
No EOL
7 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 Flow</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: fixed;
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bottom: 10px;
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right: 10px;
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color: #555;
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font-size: 10px;
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text-shadow: 0 0 5px rgba(0,0,0,0.5);
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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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pulse: { avg: 1.05, min: 1, max: 1.1 },
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dryness: 0.9
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};
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// Node class
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class Node {
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constructor(x, y, index) {
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this.x = x;
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this.y = y;
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this.index = index;
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this.target = { x, y };
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this.velocity = { x: 0, y: 0 };
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this.connections = [];
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this.size = 1 + Math.random() * 2;
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this.hue = Math.random() * 360;
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this.maxConnections = 1 + Math.floor(params.connectedness * 5);
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}
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update(targetX, targetY) {
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this.target.x += (targetX - this.target.x) * 0.05 * params.motion;
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this.target.y += (targetY - this.target.y) * 0.05 * params.motion;
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this.velocity.x += (this.target.x - this.x) * 0.01 * params.motion;
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this.velocity.y += (this.target.y - this.y) * 0.01 * params.motion;
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this.x += this.velocity.x;
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this.y += this.velocity.y;
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this.velocity.x *= 0.9;
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this.velocity.y *= 0.9;
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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, 0, Math.PI * 2);
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ctx.fillStyle = `hsl(${this.hue}, 50%, ${80 + Math.sin(Date.now() * 0.001) * 10}%)`;
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ctx.fill();
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}
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}
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// Connection class
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class Connection {
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constructor(a, b) {
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this.a = a;
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this.b = b;
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this.age = 0;
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this.strength = 0.5 + Math.random() * 0.5;
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}
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update() {
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this.age++;
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}
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draw() {
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const d = Math.hypot(this.a.x - this.b.x, this.a.y - this.b.y);
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const thickness = 0.5 + this.strength * (0.5 + Math.sin(this.age * 0.1) * 0.3);
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ctx.beginPath();
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ctx.moveTo(this.a.x, this.a.y);
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ctx.lineTo(this.b.x, this.b.y);
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ctx.strokeStyle = `hsla(${this.a.hue}, 70%, 70%, ${this.strength * 0.7})`;
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ctx.lineWidth = thickness;
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ctx.stroke();
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// Glow effect
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if (params.dryness < 0.5) {
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ctx.shadowColor = `hsla(${this.a.hue}, 70%, 70%, 0.3)`;
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ctx.shadowBlur = this.strength * 5;
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ctx.stroke();
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ctx.shadowBlur = 0;
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}
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}
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}
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// Network
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const nodes = [];
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const connections = [];
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const maxNodes = 40 + Math.floor(params.density * 60);
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function init() {
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nodes.length = 0;
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connections.length = 0;
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// Create nodes
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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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i
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));
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}
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// Initial connections
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for (let i = 0; i < nodes.length; i++) {
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for (let j = i + 1; j < nodes.length; j++) {
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if (Math.random() < params.connectedness * 0.3) {
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nodes[i].connections.push(j);
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nodes[j].connections.push(i);
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connections.push(new Connection(nodes[i], nodes[j]));
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}
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}
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}
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}
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init();
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function updateConnections() {
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// Remove old connections
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for (let i = connections.length - 1; i >= 0; i--) {
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if (connections[i].age > 100 + Math.random() * 100 ||
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Math.random() < 0.005 * params.connectedness) {
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connections.splice(i, 1);
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}
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}
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// Add new connections
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for (let i = 0; i < nodes.length; i++) {
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if (nodes[i].connections.length < nodes[i].maxConnections && Math.random() < 0.02 * params.connectedness) {
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const possible = nodes.filter(n =>
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n !== nodes[i] &&
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!nodes[i].connections.includes(n.index) &&
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n.index > nodes[i].index
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);
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if (possible.length > 0) {
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const target = possible[Math.floor(Math.random() * possible.length)];
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nodes[i].connections.push(target.index);
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target.connections.push(nodes[i].index);
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connections.push(new Connection(nodes[i], target));
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}
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}
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}
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}
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function animate() {
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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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// Mouse influence
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const mouse = {
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x: canvas.width / 2 + Math.sin(Date.now() * 0.0005) * canvas.width * 0.3,
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y: canvas.height / 2 + Math.cos(Date.now() * 0.0003) * canvas.height * 0.3
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};
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// Update nodes
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nodes.forEach(node => {
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node.update(
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mouse.x + (Math.random() - 0.5) * canvas.width * 0.2 * params.motion,
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mouse.y + (Math.random() - 0.5) * canvas.height * 0.2 * params.motion
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);
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node.draw();
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});
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// Update and draw connections
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updateConnections();
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connections.forEach(conn => {
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conn.update();
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conn.draw();
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});
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requestAnimationFrame(animate);
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}
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animate();
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// Handle window focus to reset if needed
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window.addEventListener('focus', init);
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</script>
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</body>
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</html> |