From 30b90f1e2f9cb113c46f972a367f203aa76d6a6c Mon Sep 17 00:00:00 2001
From: motd_admin <admin@motd.social>
Date: Thu, 4 Jun 2026 21:47:19 +0000
Subject: [PATCH] birth: Tendrils in Wavering Currents

---
 index.html | 218 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 218 insertions(+)
 create mode 100644 index.html
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..65cd232
--- /dev/null
+++ b/index.html
@@ -0,0 +1,218 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Flow Field Tendrils</title>
+    <style>
+        body {
+            margin: 0;
+            overflow: hidden;
+            background: #0a0a0a;
+            font-family: 'Courier New', monospace;
+            color: #ccc;
+            display: flex;
+            flex-direction: column;
+            height: 100vh;
+        }
+        canvas {
+            flex: 1;
+        }
+        #attribution {
+            text-align: right;
+            padding: 8px 16px;
+            font-size: 10px;
+            opacity: 0.6;
+        }
+    </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();
+
+        // Parameters derived from input
+        const params = {
+            motion: 0.5,
+            density: 0.5,
+            complexity: 0.5,
+            connectedness: 0.5,
+            lifespan: 0.5,
+            pulse: { avg: 1.07, min: 1.0, max: 1.1 },
+            tone: { curiosity: 0.7, dryness: 0.8, playfulness: 0.3 }
+        };
+
+        // Flow field parameters
+        const fieldWidth = 32;
+        const fieldHeight = 32;
+        const segmentCount = Math.floor(150 * params.density + 20);
+        const maxParticles = 500;
+        const decayRate = 0.995 * params.lifespan + 0.005;
+        const complexityRatio = params.complexity * 0.8 + 0.2;
+        const motionFactor = params.motion * 1.5 + 0.5;
+        const connectednessFactor = params.connectedness;
+        const colorDryness = params.tone.dryness;
+
+        // Flow field vectors (curl noise)
+        const vectors = Array(fieldHeight).fill().map((_, y) =>
+            Array(fieldWidth).fill().map((_, x) => {
+                const noiseX = x / fieldWidth * 4 + performance.now() * 0.0005 * motionFactor;
+                const noiseY = y / fieldHeight * 4 + performance.now() * 0.0003 * motionFactor;
+                const angle = Math.atan2(
+                    Math.cos(noiseX * 2) * Math.sin(noiseY * 3),
+                    Math.sin(noiseX * 3) * Math.cos(noiseY * 2)
+                ) + Math.PI/2;
+                const length = 0.8 + Math.sin(noiseX) * 0.3 + Math.cos(noiseY) * 0.2;
+                return { x: Math.cos(angle) * length, y: Math.sin(angle) * length };
+            })
+        );
+
+        // Particle system
+        class Particle {
+            constructor() {
+                this.reset();
+                this.life = params.lifespan > 0.7 ? 1000 : Math.random() * 200 + 50;
+                this.width = params.dryness > 0.7 ? 0.5 : 1 + Math.random() * 2;
+                this.trail = [];
+                this.trailLength = Math.floor(params.complexity * 20 + 5);
+            }
+
+            reset() {
+                this.pos = {
+                    x: Math.random() * canvas.width,
+                    y: Math.random() * canvas.height
+                };
+                this.vel = { x: 0, y: 0 };
+                this.size = params.density > 0.5 ?
+                    (1 + Math.random() * 2) * (0.5 + params.connectedness * 0.5) :
+                    (0.5 + Math.random()) * (0.5 + params.connectedness * 0.5);
+                this.hue = 180 + Math.random() * 30;
+                this.saturation = 60 + params.tone.curiosity * 20;
+                this.lightness = 70;
+                this.noiseOffset = Math.random() * 100;
+                this.angle = 0;
+            }
+
+            update() {
+                // Get flow field vector
+                const fieldX = Math.floor(this.pos.x / canvas.width * fieldWidth) % fieldWidth;
+                const fieldY = Math.floor(this.pos.y / canvas.height * fieldHeight) % fieldHeight;
+                const fieldVec = vectors[fieldY][fieldX];
+
+                // Add turbulence based on complexity
+                const turbulence = params.complexity * 0.3;
+                const noiseX = this.pos.x * 0.01 + this.noiseOffset;
+                const noiseY = this.pos.y * 0.01 + this.noiseOffset;
+                const turbulenceX = Math.cos(noiseX * 5 + performance.now() * 0.001) * turbulence;
+                const turbulenceY = Math.sin(noiseY * 5 + performance.now() * 0.001) * turbulence;
+
+                // Update velocity with field influence
+                this.vel.x += (fieldVec.x + turbulenceX) * motionFactor * 0.1;
+                this.vel.y += (fieldVec.y + turbulenceY) * motionFactor * 0.1;
+
+                // Add connectedness behavior (network-like attraction)
+                if (connectednessFactor > 0.3) {
+                    const closest = particles.filter(p => p !== this && p.size > 1)
+                        .sort((a, b) => {
+                            const distA = Math.hypot(a.pos.x - this.pos.x, a.pos.y - this.pos.y);
+                            const distB = Math.hypot(b.pos.x - this.pos.x, b.pos.y - this.pos.y);
+                            return distA - distB;
+                        })[0];
+
+                    if (closest) {
+                        const dist = Math.hypot(closest.pos.x - this.pos.x, closest.pos.y - this.pos.y);
+                        if (dist < 200) {
+                            const influence = connectednessFactor * (1 - dist/200);
+                            this.vel.x += (closest.pos.x - this.pos.x) * influence * 0.001;
+                            this.vel.y += (closest.pos.y - this.pos.y) * influence * 0.001;
+                        }
+                    }
+                }
+
+                // Update position
+                this.pos.x += this.vel.x;
+                this.pos.y += this.vel.y;
+
+                // Boundary check
+                if (this.pos.x < 0 || this.pos.x > canvas.width) this.vel.x *= -0.5;
+                if (this.pos.y < 0 || this.pos.y > canvas.height) this.vel.y *= -0.5;
+
+                // Trail capture
+                this.trail.push({...this.pos});
+                if (this.trail.length > this.trailLength) {
+                    this.trail.shift();
+                }
+
+                // Lifespan decay
+                this.life--;
+                this.size *= decayRate;
+                this.lightness = Math.max(30, this.lightness - 0.1);
+
+                // Reset if dead
+                if (this.life <= 0 || this.size < 0.1) {
+                    this.reset();
+                }
+            }
+
+            draw() {
+                ctx.strokeStyle = `hsl(${this.hue}, ${this.saturation}%, ${this.lightness}%)`;
+                ctx.lineWidth = this.width;
+                ctx.beginPath();
+
+                // Draw trail
+                if (this.trail.length > 1) {
+                    ctx.moveTo(this.trail[0].x, this.trail[0].y);
+                    for (let i = 1; i < this.trail.length; i++) {
+                        const point = this.trail[i];
+                        const next = this.trail[i + 1] || this.pos;
+                        const controlX = (point.x + next.x) / 2;
+                        const controlY = (point.y + next.y) / 2;
+
+                        ctx.quadraticCurveTo(
+                            point.x, point.y,
+                            controlX, controlY
+                        );
+                    }
+                    ctx.lineTo(this.pos.x, this.pos.y);
+                    ctx.stroke();
+                }
+            }
+        }
+
+        let particles = Array(maxParticles).fill().map(() => new Particle());
+
+        function animate() {
+            // Pulsing density
+            const pulseFactor = params.pulse.avg + Math.sin(performance.now() * 0.002) * (params.pulse.max - params.pulse.min) * 0.5;
+
+            // Clear with fade effect
+            ctx.fillStyle = `rgba(10, 10, 10, ${0.05 * params.dryness + 0.05})`;
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            // Update and draw particles
+            particles.forEach(p => {
+                p.update();
+                p.draw();
+            });
+
+            // Occasionally add new particles based on density
+            if (Math.random() < (0.01 * pulseFactor * params.density)) {
+                particles[Math.floor(Math.random() * particles.length)].reset();
+            }
+
+            requestAnimationFrame(animate);
+        }
+
+        animate();
+    </script>
+</body>
+</html>
\ No newline at end of file
