birth: Floating Curious Particles Drift
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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>Curious Particles</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: #00ffff;
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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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left: 0;
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right: 0;
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text-align: center;
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font-size: 10px;
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opacity: 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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// Particle system 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: {
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avg: 1.07,
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min: 0.9,
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max: 1.2
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},
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tone: {
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anger: 0,
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sadness: 0,
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curiosity: 0.8,
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dryness: 0.9,
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playfulness: 0.1,
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tension: 0
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}
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};
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// Generate particles based on density
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const particleCount = Math.floor(1000 + params.density * 5000);
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const particles = [];
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const connections = [];
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// Palette based on tone
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const palette = {
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r: Math.floor(255 * (0.1 + params.tone.curiosity * 0.5)),
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g: Math.floor(255 * (0.2 + params.tone.curiosity * 0.7)),
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b: Math.floor(255 * (0.3 + params.tone.curiosity * 0.9))
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};
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// Initialize particles
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for (let i = 0; i < particleCount; i++) {
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particles.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 * params.motion,
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vy: (Math.random() - 0.5) * 2 * params.motion,
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size: Math.random() * 2 + 1,
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alpha: Math.random() * 0.8 + 0.2,
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pulse: params.pulse.avg,
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jitter: Math.random() * 0.1,
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age: 0,
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maxAge: 1000 + Math.random() * 2000 * params.lifespan
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});
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}
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// Create some connections based on connectedness
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const connectionCount = Math.floor(params.connectedness * 500);
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for (let i = 0; i < connectionCount; i++) {
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const a = Math.floor(Math.random() * particles.length);
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const b = Math.floor(Math.random() * particles.length);
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connections.push({
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a, b,
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strength: Math.random() * 0.5 + 0.5
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});
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}
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function update() {
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ctx.fillStyle = 'rgba(10, 10, 10, 0.1)';
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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const time = Date.now() * 0.001;
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const pulseFactor = params.pulse.avg + Math.sin(time * 2) * (params.pulse.max - params.pulse.min) * 0.5;
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particles.forEach(p => {
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// Update position with jitter
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p.vx += (Math.random() - 0.5) * p.jitter * params.motion;
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p.vy += (Math.random() - 0.5) * p.jitter * params.motion;
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// Apply boundary constraints
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if (p.x < 0 || p.x > canvas.width) p.vx *= -1;
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if (p.y < 0 || p.y > canvas.height) p.vy *= -1;
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p.x += p.vx * pulseFactor;
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p.y += p.vy * pulseFactor;
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// Age the particle
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p.age++;
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if (p.age > p.maxAge && params.lifespan < 0.5) {
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// Respawn if lifespan is low
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p.x = Math.random() * canvas.width;
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p.y = Math.random() * canvas.height;
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p.age = 0;
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}
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// Update pulse
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p.pulse = params.pulse.avg + Math.sin(time * p.jitter * 2) * (params.pulse.max - params.pulse.min) * 0.3;
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});
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// Draw connections
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ctx.strokeStyle = `rgba(${palette.r}, ${palette.g}, ${palette.b}, 0.2)`;
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ctx.lineWidth = 1 * params.dryness;
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connections.forEach(conn => {
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const a = particles[conn.a];
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const b = particles[conn.b];
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const dist = Math.sqrt((a.x - b.x) ** 2 + (a.y - b.y) ** 2);
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if (dist < 100) {
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ctx.beginPath();
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ctx.moveTo(a.x, a.y);
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ctx.lineTo(b.x, b.y);
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ctx.stroke();
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}
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});
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// Draw particles
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particles.forEach(p => {
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const size = p.size * p.pulse * (0.7 + 0.3 * params.complexity);
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ctx.beginPath();
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ctx.arc(p.x, p.y, size, 0, Math.PI * 2);
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ctx.fillStyle = `rgba(${palette.r}, ${palette.g}, ${palette.b}, ${p.alpha * p.pulse * 0.7})`;
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ctx.fill();
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});
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}
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function animate() {
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update();
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requestAnimationFrame(animate);
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}
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animate();
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</script>
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</body>
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</html>
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