birth: Fractal Drift in Monochrome

2026-08-01 22:21:18 +00:00 · 2026-08-01 22:21:18 +00:00 · f03fbe4bea
commit f03fbe4bea
parent 4a475e877a
1 changed files with 148 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,148 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Fractal Drift</title>
+    <style>
+        body {
+            margin: 0;
+            overflow: hidden;
+            background-color: #0a0a0a;
+            font-family: 'Courier New', monospace;
+        }
+        canvas {
+            display: block;
+        }
+        #attribution {
+            position: fixed;
+            bottom: 10px;
+            right: 10px;
+            color: #333;
+            font-size: 10px;
+            opacity: 0.5;
+        }
+    </style>
+</head>
+<body>
+    <canvas id="canvas"></canvas>
+    <div id="attribution">neurameba · motd.social</div>
+    <script>
+        const canvas = document.getElementById('canvas');
+        const ctx = canvas.getContext('2d');
+
+        function resizeCanvas() {
+            canvas.width = window.innerWidth;
+            canvas.height = window.innerHeight;
+        }
+
+        window.addEventListener('resize', resizeCanvas);
+        resizeCanvas();
+
+        const params = {
+            motion: 0.5,
+            density: 0.5,
+            complexity: 0.5,
+            connectedness: 0.5,
+            lifespan: 0.5,
+            tone: { dryness: 0.9 }
+        };
+
+        const nodes = [];
+        const maxDepth = 3 + Math.floor(params.complexity * 3);
+        const branchCount = 3 + Math.floor(params.connectedness * 5);
+        const thickness = 1 + Math.floor(params.density * 3);
+
+        // Initialize the root node
+        nodes.push({
+            x: canvas.width / 2,
+            y: canvas.height / 2,
+            size: thickness,
+            depth: 0,
+            angle: 0,
+            branches: [],
+            life: 1
+        });
+
+        // Recursively build the fractal
+        function buildFractal(node) {
+            if (node.depth >= maxDepth) return;
+
+            const branchLength = 50 / (1 + node.depth * params.motion * 1.5);
+            const spread = Math.PI * (0.2 + params.connectedness * 0.5);
+
+            for (let i = 0; i < branchCount; i++) {
+                const angle = node.angle + spread * (i / branchCount - 0.5);
+                const endX = node.x + Math.cos(angle) * branchLength * (0.7 + Math.random() * 0.6);
+                const endY = node.y + Math.sin(angle) * branchLength * (0.7 + Math.random() * 0.6);
+
+                node.branches.push({
+                    x: endX,
+                    y: endY,
+                    size: Math.max(0.5, node.size * (0.7 - params.motion * 0.3)),
+                    depth: node.depth + 1,
+                    angle,
+                    branches: [],
+                    life: 1
+                });
+            }
+
+            node.branches.forEach(buildFractal);
+        }
+
+        buildFractal(nodes[0]);
+
+        // Animation variables
+        let time = 0;
+        const pulseSpeed = 1.08;
+        const pulseVariation = 0.02;
+
+        function animate() {
+            time += 0.01;
+
+            // Clear with slight fade
+            ctx.fillStyle = 'rgba(0, 0, 0, 0.05)';
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            // Adjust for pulse
+            const pulse = pulseSpeed + pulseVariation * Math.sin(time * 2);
+            const scale = 1 + 0.1 * (params.motion * 0.5 + 0.5) * pulse;
+
+            // Draw fractal
+            drawFractal(nodes[0], canvas.width/2, canvas.height/2, scale);
+
+            requestAnimationFrame(animate);
+        }
+
+        function drawFractal(node, startX, startY, scale) {
+            // Fade out older branches
+            node.life *= 0.99;
+            if (node.life < 0.01) return;
+
+            const currentSize = node.size * scale * node.life;
+            const gradient = ctx.createLinearGradient(startX, startY, node.x, node.y);
+            gradient.addColorStop(0, `rgba(255, 255, 255, ${node.life * 0.8})`);
+            gradient.addColorStop(1, `rgba(200, 200, 200, ${node.life * 0.3})`);
+
+            ctx.strokeStyle = gradient;
+            ctx.lineWidth = currentSize;
+            ctx.lineCap = 'round';
+
+            ctx.beginPath();
+            ctx.moveTo(startX, startY);
+            ctx.lineTo(node.x, node.y);
+            ctx.stroke();
+
+            if (node.branches.length === 0) return;
+
+            node.branches.forEach(branch => {
+                drawFractal(branch, node.x, node.y, scale);
+            });
+        }
+
+        setTimeout(() => {
+            requestAnimationFrame(animate);
+        }, 100);
+    </script>
+</body>
+</html>