birth: Fading Echoes in Static

2026-08-20 06:21:20 +00:00 · 2026-08-20 06:21:20 +00:00 · 2117ddb4af
commit 2117ddb4af
parent ec3c5cd8a0
1 changed files with 136 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,136 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>neurameba · motd.social</title>
+    <style>
+        body {
+            margin: 0;
+            overflow: hidden;
+            background: #0a0a1a;
+            font-family: 'Courier New', monospace;
+        }
+        canvas {
+            display: block;
+        }
+        #info {
+            position: absolute;
+            bottom: 10px;
+            left: 0;
+            right: 0;
+            text-align: center;
+            color: #666;
+            font-size: 10px;
+            pointer-events: none;
+        }
+    </style>
+</head>
+<body>
+    <canvas id="canvas"></canvas>
+    <div id="info">neurameba · motd.social</div>
+    <script>
+        const canvas = document.getElementById('canvas');
+        const ctx = canvas.getContext('2d');
+
+        // Set canvas to full window size
+        function resizeCanvas() {
+            canvas.width = window.innerWidth;
+            canvas.height = window.innerHeight;
+        }
+        window.addEventListener('resize', resizeCanvas);
+        resizeCanvas();
+
+        // Parameters adjusted from input
+        const params = {
+            motion: 0.5,
+            density: 0.5,
+            complexity: 0.5,
+            connectedness: 0.5,
+            lifespan: 0.5,
+            tone: { dryness: 0.9, curiosity: 0.1 }
+        };
+
+        // Reaction-diffusion system (Gray-Scott model)
+        const gridSize = Math.min(100, Math.max(50, 20 + params.density * 100));
+        const cellSize = Math.max(2, Math.floor(Math.min(canvas.width, canvas.height) / gridSize));
+
+        const cols = Math.floor(canvas.width / cellSize);
+        const rows = Math.floor(canvas.height / cellSize);
+
+        let currentGrid = new Array(rows).fill().map(() => new Array(cols).fill(0));
+        let nextGrid = new Array(rows).fill().map(() => new Array(cols).fill(0));
+
+        // Initialize with sparse random pattern
+        for (let i = 0; i < rows; i++) {
+            for (let j = 0; j < cols; j++) {
+                currentGrid[i][j] = Math.random() < params.density ? 1 : 0;
+            }
+        }
+
+        // Gray-Scott parameters adjusted for organic patterns
+        const f = 0.055 + params.motion * 0.02;
+        const k = 0.062 + params.connectedness * 0.015;
+        const dt = 1 + params.motion * 0.5;
+
+        // Color scheme based on tone
+        const hueBase = 180 + Math.sin(Date.now() * 0.001) * 30; // Base hue oscillating
+        const saturation = params.tone.dryness > 0.5 ? 0 : 20 + params.tone.curiosity * 30;
+        const brightness = 40 + params.motion * 20;
+
+        function updateGrid() {
+            for (let i = 1; i < rows - 1; i++) {
+                for (let j = 1; j < cols - 1; j++) {
+                    const u = currentGrid[i][j];
+                    const v = nextGrid[i][j];
+
+                    // Compute Laplacian (diffusion)
+                    const laplacianU = (currentGrid[i-1][j] + currentGrid[i+1][j] +
+                                       currentGrid[i][j-1] + currentGrid[i][j+1] -
+                                       4 * u) * 0.2;
+
+                    // Gray-Scott reaction terms
+                    const reaction = u * u * v;
+                    const newU = u + dt * (params.motion * 0.1 * laplacianU - reaction + f * (1 - u));
+                    const newV = v + dt * (params.motion * 0.1 * laplacianU + reaction - (f + k) * v);
+
+                    nextGrid[i][j] = Math.max(0, Math.min(1, newV));
+                    currentGrid[i][j] = Math.max(0, Math.min(1, newU));
+                }
+            }
+
+            // Swap grids
+            [currentGrid, nextGrid] = [nextGrid, currentGrid];
+        }
+
+        function drawGrid() {
+            ctx.fillStyle = `hsl(${hueBase}, ${saturation}%, ${brightness}%)`;
+
+            for (let i = 0; i < rows; i++) {
+                for (let j = 0; j < cols; j++) {
+                    const v = currentGrid[i][j];
+                    if (v > 0.01) {
+                        ctx.globalAlpha = Math.min(1, v * 2);
+                        ctx.fillRect(j * cellSize, i * cellSize, cellSize, cellSize);
+                    }
+                }
+            }
+            ctx.globalAlpha = 1;
+        }
+
+        function animate() {
+            updateGrid();
+            ctx.clearRect(0, 0, canvas.width, canvas.height);
+
+            // Draw with some motion blur effect
+            ctx.fillStyle = 'rgba(10, 10, 26, 0.05)';
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            drawGrid();
+            requestAnimationFrame(animate);
+        }
+
+        animate();
+    </script>
+</body>
+</html>