147 lines
No EOL
4.6 KiB
HTML
147 lines
No EOL
4.6 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>Recursive Tendrils</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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display: flex;
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justify-content: center;
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align-items: center;
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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: absolute;
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bottom: 20px;
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color: #555;
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font-family: monospace;
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font-size: 10px;
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text-align: center;
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width: 100%;
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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 class="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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// Set canvas to full window size
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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 derived from abstract input
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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: 1.0, max: 1.3 },
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tone: { dryness: 0.8, playfulness: 0.1 }
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};
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// Fractal system state
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const fractals = [];
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const maxDepth = 4;
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const branchCount = 3;
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const lengthBase = 20;
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const angleVariation = Math.PI * 0.6;
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const lengthFalloff = 0.6;
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const colorBase = '#a0a0a0';
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const decayRate = 0.95;
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// Initialize fractals
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function initFractals() {
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fractals.length = 0;
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const count = 50 + Math.floor(params.density * 150);
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for (let i = 0; i < count; i++) {
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fractals.push({
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x: Math.random() * canvas.width,
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y: canvas.height,
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depth: 0,
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length: lengthBase * (0.5 + Math.random() * 0.5),
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angle: -Math.PI/2,
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angleOffset: 0,
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color: colorBase,
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alpha: 0.8 + Math.random() * 0.2,
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growth: 0,
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pulse: params.pulse.avg * (0.9 + Math.random() * 0.2)
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});
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}
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}
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// Recursive fractal growth
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function growFractal(x, y, depth, length, angle, parentColor, pulse) {
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if (depth > maxDepth) return;
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ctx.beginPath();
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const hue = 0;
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const saturation = 0;
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const lightness = 20 + Math.sin(Date.now() * 0.001 * pulse) * 10;
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const color = `hsl(${hue}, ${saturation}%, ${lightness}%)`;
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ctx.strokeStyle = color;
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ctx.lineWidth = 2 * (1 - depth/maxDepth);
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ctx.globalAlpha = 0.7 * (1 - depth/maxDepth);
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const endX = x + Math.cos(angle) * length;
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const endY = y + Math.sin(angle) * length;
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ctx.moveTo(x, y);
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ctx.lineTo(endX, endY);
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ctx.stroke();
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// Branching
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for (let i = 0; i < branchCount; i++) {
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const newAngle = angle + (Math.random() - 0.5) * angleVariation * (1 - params.complexity);
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const newLength = length * lengthFalloff * (0.7 + Math.random() * 0.3);
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growFractal(endX, endY, depth + 1, newLength, newAngle, color, pulse * params.pulse.avg);
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}
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}
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// Animation loop
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function animate() {
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// Clear with fade
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ctx.globalAlpha = 0.05;
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ctx.fillStyle = '#000';
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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ctx.globalAlpha = 1.0;
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// Update and draw fractals
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fractals.forEach((f, i) => {
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if (f.depth === 0) {
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f.x += (Math.random() - 0.5) * params.motion * 2;
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f.y -= params.motion * 0.5;
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if (f.y < 0) f.y = canvas.height;
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f.growth += 0.05;
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if (f.growth >= 1) {
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growFractal(f.x, f.y, 0, f.length, f.angle, f.color, f.pulse);
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}
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}
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});
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requestAnimationFrame(animate);
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}
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// Initialize and start
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initFractals();
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animate();
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</script>
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</body>
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</html> |