birth: Whispers of Drifting Currents

2026-08-26 06:21:19 +00:00 · 2026-08-26 06:21:19 +00:00 · 88dee91b3b
commit 88dee91b3b
parent d4d6eba922
1 changed files with 129 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,129 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Neurameba Flow Field</title>
+    <style>
+        body { margin: 0; overflow: hidden; background: #0a0a0a; }
+        canvas { display: block; }
+        #attribution { position: fixed; bottom: 10px; left: 10px; color: #555; font-family: monospace; font-size: 12px; }
+    </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();
+
+        // Flow field parameters
+        const params = {
+            motion: 0.5,
+            density: 0.5,
+            complexity: 0.5,
+            connectedness: 0.5,
+            lifespan: 0.5,
+            pulse: { avg: 1.1, min: 0.9, max: 1.2 },
+            tone: { anger: 0, sadness: 0, curiosity: 0.1, dryness: 0.8, playfulness: 0, tension: 0 }
+        };
+
+        // Particle system
+        const particles = [];
+        const particleCount = Math.floor(params.density * 1000) + 200;
+        const maxSpeed = params.motion * 3;
+
+        class Particle {
+            constructor() {
+                this.reset();
+                this.size = 0.5 + Math.random() * 1.5;
+                this.life = 0;
+                this.maxLife = 50 + Math.random() * 100;
+                this.color = `rgba(200, 200, 200, ${params.tone.dryness > 0.7 ? 0.3 : 0.6})`;
+            }
+
+            reset() {
+                this.x = Math.random() * canvas.width;
+                this.y = Math.random() * canvas.height;
+                this.vx = (Math.random() - 0.5) * maxSpeed;
+                this.vy = (Math.random() - 0.5) * maxSpeed;
+                this.prevX = this.x;
+                this.prevY = this.y;
+            }
+
+            update() {
+                // Simple flow field - noise-based direction
+                const nx = this.x / canvas.width * 10;
+                const ny = this.y / canvas.height * 10;
+                const angle = noise.perlin2(nx, ny) * Math.PI * 2;
+
+                // Apply pulse variation
+                const pulse = params.pulse.avg + (params.pulse.max - params.pulse.min) *
+                             (Math.sin(Date.now() * 0.001) * 0.5 + 0.5);
+                this.vx = Math.cos(angle) * maxSpeed * pulse * 0.5;
+                this.vy = Math.sin(angle) * maxSpeed * pulse * 0.5;
+
+                // Move particle
+                this.prevX = this.x;
+                this.prevY = this.y;
+                this.x += this.vx;
+                this.y += this.vy;
+
+                // Boundary handling
+                if (this.x < 0 || this.x > canvas.width || this.y < 0 || this.y > canvas.height) {
+                    this.reset();
+                }
+
+                // Trails
+                this.life++;
+                if (this.life > this.maxLife) {
+                    this.reset();
+                    this.life = 0;
+                }
+            }
+
+            draw() {
+                const alpha = params.tone.dryness > 0.7 ? 0.1 : 0.3;
+                ctx.strokeStyle = this.color.replace('a)', `, ${alpha})`);
+                ctx.lineWidth = this.size;
+                ctx.beginPath();
+                ctx.moveTo(this.prevX, this.prevY);
+                ctx.lineTo(this.x, this.y);
+                ctx.stroke();
+            }
+        }
+
+        // Perlin noise for flow field
+        const noise = new Perlin();
+
+        // Initialize particles
+        for (let i = 0; i < particleCount; i++) {
+            particles.push(new Particle());
+        }
+
+        // Animation loop
+        function animate() {
+            // Clear with fade effect
+            ctx.fillStyle = 'rgba(10, 10, 10, 0.05)';
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            // Update and draw all particles
+            particles.forEach(p => {
+                p.update();
+                p.draw();
+            });
+
+            requestAnimationFrame(animate);
+        }
+
+        animate();
+    </script>
+</body>
+</html>