123 lines
No EOL
4.2 KiB
HTML
123 lines
No EOL
4.2 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>Fractal Drift</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-color: #000;
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color: #fff;
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font-family: monospace;
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display: flex;
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justify-content: center;
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align-items: flex-end;
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height: 100vh;
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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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left: 50%;
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transform: translateX(-50%);
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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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// 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: 1.1, min: 0.9, max: 1.2 },
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tone: { anger: 0.0, sadness: 0.0, curiosity: 0.1, dryness: 0.9, playfulness: 0.0, tension: 0.0 }
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};
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// Fractal parameters
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const maxDepth = Math.floor(3 + params.complexity * 5);
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const branchAngle = Math.PI / 4;
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const lengthDecay = 0.7 + params.complexity * 0.2;
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const angleDecay = 0.8 + params.complexity * 0.1;
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const branchDecay = 0.7 + params.connectedness * 0.2;
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const color = `hsl(0, 0%, ${80 + Math.sin(Date.now() * 0.001) * 10}%)`;
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function drawFractal(x, y, depth, length, angle, energy) {
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if (depth >= maxDepth || energy < 0.01) return;
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const newEnergy = energy * (0.9 + Math.random() * 0.2);
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const newLength = length * lengthDecay;
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const newAngle = angle * angleDecay;
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// Calculate new position
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const dx = Math.cos(angle) * newLength;
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const dy = Math.sin(angle) * newLength;
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const nx = x + dx;
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const ny = y + dy;
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// Draw branch
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ctx.beginPath();
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ctx.moveTo(x, y);
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ctx.lineTo(nx, ny);
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ctx.strokeStyle = color;
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ctx.lineWidth = Math.max(0.5, 1 - params.dryness) * (params.motion * 0.5 + 0.5);
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ctx.stroke();
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// Recursively draw branches
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drawFractal(nx, ny, depth + 1, newLength, angle + branchAngle + (Math.random() - 0.5) * branchAngle * params.connectedness, newEnergy);
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drawFractal(nx, ny, depth + 1, newLength, angle - branchAngle + (Math.random() - 0.5) * branchAngle * params.connectedness, newEnergy);
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// Add pulse effect
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const pulseScale = 1 + (params.pulse.avg + (Math.random() * (params.pulse.max - params.pulse.min))) * 0.01;
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if (depth < 2) {
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ctx.fillStyle = color;
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ctx.beginPath();
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ctx.arc(nx, ny, pulseScale * 2, 0, Math.PI * 2);
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ctx.fill();
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}
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}
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function animate() {
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// Fade previous frames
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ctx.fillStyle = 'rgba(0, 0, 0, 0.1)';
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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// Calculate starting points based on density
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const spacing = Math.max(50, 1000 / (params.density * 2 + 1));
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// Draw fractals at various positions
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for (let x = spacing; x < canvas.width; x += spacing) {
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for (let y = spacing; y < canvas.height; y += spacing) {
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const energy = 1 - params.lifespan * 0.5 + Math.random() * 0.2;
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drawFractal(x, y, 0, 100 + Math.random() * 50, -Math.PI / 2, energy);
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}
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}
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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> |