195 lines
6.4 KiB
HTML
195 lines
6.4 KiB
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>Fractal Bloom</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: #ccc;
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}
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#attribution {
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position: absolute;
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left: 20px;
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bottom: 20px;
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font-size: 10px;
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opacity: 0.5;
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pointer-events: none;
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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 derived from spec
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const params = {
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motion: 0.453,
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density: 0.441,
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complexity: 0.531,
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connectedness: 0.413,
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lifespan: 0.546,
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pulse: { avg: 0.97, min: 0.30, max: 2.00 },
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tone: { dryness: 0.90 },
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topology: {
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nodes: 9,
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branches: 9,
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loops: 51,
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maxDepth: 17,
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thicknessRatio: 1.25,
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fractalDim: 1.000,
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energy: 42.9
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}
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};
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// Fractal parameters
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const maxDepth = Math.floor(10 + params.topology.maxDepth * 2);
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const branchCount = Math.floor(3 + params.topology.branches * 0.5);
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const growthRate = params.motion * 1.5;
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const angleVariation = params.complexity * Math.PI * 0.8;
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const segmentLength = 10 + params.density * 30;
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const thickness = 0.5 + params.topology.thicknessRatio * 0.5;
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// Color palette (dryness = monochrome)
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const baseHue = 220;
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const saturation = 10 + params.tone.dryness * 10;
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const baseBrightness = 80;
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const pulseEffect = () => 0.7 + params.pulse.avg * 0.3;
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// Fractal state
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const branches = [];
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let time = 0;
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let branchesCreated = 0;
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// Initialize fractal
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function initFractal() {
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branches.length = 0;
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branchesCreated = 0;
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time = 0;
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// Root branch
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branches.push({
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x: canvas.width / 2,
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y: canvas.height,
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angle: -Math.PI / 2,
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length: 1,
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depth: 0,
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thickness: thickness * 5,
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hue: baseHue,
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brightness: baseBrightness,
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children: []
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});
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}
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// Grow fractal
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function growFractal() {
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if (branchesCreated >= maxDepth || Math.random() > growthRate) return;
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const available = branches.filter(b => b.children.length < branchCount * 0.7);
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if (available.length === 0) return;
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const parent = available[Math.floor(Math.random() * available.length)];
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const newAngle = parent.angle + (Math.random() - 0.5) * angleVariation;
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const newLength = parent.length * (0.6 + Math.random() * 0.4);
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const newBranch = {
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x: parent.x + Math.cos(parent.angle) * parent.length * segmentLength,
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y: parent.y + Math.sin(parent.angle) * parent.length * segmentLength,
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angle: newAngle,
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length: newLength,
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depth: parent.depth + 1,
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parent: parent,
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thickness: parent.thickness * 0.7,
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hue: baseHue + (parent.depth % 3) * 20,
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brightness: baseBrightness * (0.7 + parent.depth * 0.05),
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children: [],
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creationTime: time,
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maxLife: 100 + params.topology.maxDepth * 10
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};
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parent.children.push(newBranch);
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branches.push(newBranch);
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branchesCreated++;
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// Add loops (close some branches back to ancestors)
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if (params.topology.loops > 0 && parent.depth > 2 && Math.random() < 0.3) {
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const loopTarget = branches[Math.floor(Math.random() * branches.length)];
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if (loopTarget.depth < parent.depth) {
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newBranch.angle = Math.atan2(
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loopTarget.y - newBranch.y,
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loopTarget.x - newBranch.x
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);
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}
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}
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}
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// Draw fractal
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function drawFractal() {
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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ctx.lineCap = 'round';
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ctx.lineJoin = 'round';
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branches.forEach(branch => {
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const lifeRatio = (time - branch.creationTime) / branch.maxLife;
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if (lifeRatio > 1) return;
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const opacity = params.lifespan * (1 - lifeRatio * 0.7);
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const pulse = pulseEffect() * (1 - lifeRatio * 0.5);
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ctx.globalAlpha = opacity;
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ctx.strokeStyle = `hsl(${branch.hue}, ${saturation}%, ${branch.brightness * pulse}%)`;
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ctx.lineWidth = branch.thickness;
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ctx.beginPath();
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ctx.moveTo(branch.x, branch.y);
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// Draw curved path to parent
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const endX = branch.x + Math.cos(branch.angle) * branch.length * segmentLength;
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const endY = branch.y + Math.sin(branch.angle) * branch.length * segmentLength;
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// Quadratic curve for organic feel
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const cp1x = branch.x + Math.cos(branch.angle) * branch.length * segmentLength * 0.3;
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const cp1y = branch.y + Math.sin(branch.angle) * branch.length * segmentLength * 0.3;
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ctx.quadraticCurveTo(cp1x, cp1y, endX, endY);
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ctx.stroke();
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});
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ctx.globalAlpha = 1;
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}
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// Animation loop
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function animate() {
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growFractal();
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drawFractal();
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time++;
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if (time > 2000 || branchesCreated >= maxDepth * 2) {
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initFractal();
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}
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requestAnimationFrame(animate);
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}
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initFractal();
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animate();
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</script>
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</body>
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</html>
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