birth: Fractal Drift Through Disorder

2026-06-04 05:47:17 +00:00 · 2026-06-04 05:47:17 +00:00 · 02f997afca
commit 02f997afca
parent c07b46f2ae
1 changed files with 146 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,146 @@
+<!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: #0a0a0a;
+            font-family: 'Courier New', monospace;
+            color: #ccc;
+            display: flex;
+            justify-content: center;
+            align-items: flex-end;
+            height: 100vh;
+        }
+        canvas {
+            display: block;
+        }
+        #attribution {
+            position: absolute;
+            bottom: 20px;
+            font-size: 10px;
+            color: #555;
+            pointer-events: none;
+        }
+    </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();
+
+        // Strange attractor parameters
+        const attractor = {
+            a: 0.2,
+            b: 0.9,
+            c: 1.5,
+            d: 0.3,
+            scale: 100,
+            offsetX: 0.5,
+            offsetY: 0.5,
+            maxPoints: 50000,
+            points: [],
+            history: []
+        };
+
+        // Initialize with motion parameter
+        attractor.a = 0.2 + Math.random() * 0.3;
+        attractor.b = 0.7 + Math.random() * 0.4;
+        attractor.c = 1.2 + Math.random() * 0.6;
+        attractor.d = 0.1 + Math.random() * 0.2;
+
+        function generateAttractorPoints() {
+            let x = 0.1;
+            let y = 0.1;
+
+            for (let i = 0; i < attractor.maxPoints; i++) {
+                const x1 = Math.sin(y * attractor.b - attractor.c);
+                const y1 = Math.sin(x1 * attractor.a) * -1;
+                x = x1;
+                y = y1;
+
+                const px = (x + attractor.offsetX) * attractor.scale;
+                const py = (y + attractor.offsetY) * attractor.scale;
+
+                attractor.points.push({x: px, y: py});
+
+                // Store every 10th point for drawing trails
+                if (i % 5 === 0) {
+                    attractor.history.push({x: px, y: py});
+                    if (attractor.history.length > 200) {
+                        attractor.history.shift();
+                    }
+                }
+            }
+        }
+
+        generateAttractorPoints();
+
+        // Pulse animation
+        let pulse = 1.0;
+        const targetPulse = 1.0 + (Math.random() * 0.6 - 0.3);
+        const pulseSpeed = 0.005 + Math.random() * 0.01;
+
+        function drawAttractor() {
+            // Pulse effect
+            pulse += (targetPulse - pulse) * pulseSpeed;
+            ctx.lineWidth = 1.5 * pulse;
+            ctx.strokeStyle = `rgba(200, 200, 200, ${0.5 + pulse * 0.5})`;
+
+            // Draw all points
+            ctx.beginPath();
+            for (let i = 0; i < attractor.points.length; i++) {
+                const p = attractor.points[i];
+                ctx.moveTo(p.x, p.y);
+                ctx.lineTo(p.x, p.y);
+            }
+            ctx.stroke();
+
+            // Draw fading trail
+            ctx.lineWidth = 1 * pulse;
+            for (let i = 0; i < attractor.history.length; i++) {
+                const h = attractor.history[i];
+                const alpha = i / attractor.history.length;
+                ctx.strokeStyle = `rgba(180, 180, 180, ${alpha * 0.7})`;
+                ctx.beginPath();
+                ctx.moveTo(h.x, h.y);
+                ctx.lineTo(h.x, h.y);
+                ctx.stroke();
+            }
+        }
+
+        function animate() {
+            ctx.fillStyle = 'rgba(0, 0, 0, 0.15)';
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            // Add slight rotation based on motion parameter
+            const centerX = canvas.width / 2;
+            const centerY = canvas.height / 2;
+            ctx.save();
+            ctx.translate(centerX, centerY);
+            ctx.rotate(0.001 * Math.sin(Date.now() * 0.001));
+            ctx.translate(-centerX, -centerY);
+
+            drawAttractor();
+            ctx.restore();
+
+            requestAnimationFrame(animate);
+        }
+
+        animate();
+    </script>
+</body>
+</html>