birth: Teal murmurs in monochrome

2026-03-29 17:47:17 +00:00 · 2026-03-29 17:47:17 +00:00 · 76f02c0307
commit 76f02c0307
parent c099d04276
1 changed files with 172 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,172 @@
+```html
+<!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: #0a0a0a;
+            font-family: 'Courier New', monospace;
+        }
+        canvas {
+            display: block;
+        }
+        #attribution {
+            position: absolute;
+            bottom: 1em;
+            left: 1em;
+            color: rgba(255, 255, 255, 0.3);
+            font-size: 0.8em;
+            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');
+
+        // Set canvas to full window size
+        function resizeCanvas() {
+            canvas.width = window.innerWidth;
+            canvas.height = window.innerHeight;
+        }
+        window.addEventListener('resize', resizeCanvas);
+        resizeCanvas();
+
+        // Parameters
+        const params = {
+            motion: 0.476,
+            density: 0.427,
+            complexity: 0.546,
+            connectedness: 0.5,
+            lifespan: 0.473,
+            survivingNodes: 148,
+            branchCount: 138,
+            loops: 829,
+            maxDepth: 21,
+            thicknessRatio: 1.25,
+            fractalDimension: 1.275,
+            pulseAvg: 0.51,
+            pulseMin: 0.3,
+            pulseMax: 2.0,
+            tone: {
+                anger: 0.0,
+                sadness: 0.0,
+                curiosity: 0.3,
+                dryness: 0.9,
+                playfulness: 0.1,
+                tension: 0.0
+            }
+        };
+
+        // Reaction-diffusion grid
+        const GRID_SIZE = Math.min(150, 100 + params.density * 200);
+        const CELL_SIZE = Math.max(2, Math.min(8, 10 - params.density * 5));
+        const grid = [];
+        const nextGrid = [];
+
+        // Initialize grids
+        for (let i = 0; i < GRID_SIZE; i++) {
+            grid[i] = new Array(GRID_SIZE).fill(0);
+            nextGrid[i] = new Array(GRID_SIZE).fill(0);
+        }
+
+        // Random seed with density influence
+        for (let i = 0; i < GRID_SIZE; i++) {
+            for (let j = 0; j < GRID_SIZE; j++) {
+                const val = Math.random() * params.density;
+                grid[i][j] = val > 0.5 ? 1 : 0;
+            }
+        }
+
+        // Reaction-diffusion parameters (Gray-Scott model)
+        let F = 0.055 + params.density * 0.02;
+        let k = 0.062 + params.connectedness * 0.02;
+
+        // Color palette
+        const hue = params.tone.curiosity * 120; // teals
+        const saturation = 0.7 * (1 - params.tone.dryness) + 0.1;
+        const lightness = 0.1 + params.pulseAvg * 0.1;
+
+        let time = 0;
+
+        function updateGrid() {
+            for (let i = 1; i < GRID_SIZE - 1; i++) {
+                for (let j = 1; j < GRID_SIZE - 1; j++) {
+                    const u = grid[i][j];
+                    const v = nextGrid[i][j];
+
+                    // von Neumann neighborhood
+                    const sumU = grid[i-1][j] + grid[i+1][j] + grid[i][j-1] + grid[i][j+1];
+
+                    // Gray-Scott reaction terms
+                    const reaction = u * u * v;
+                    const diffU = (grid[i-1][j] + grid[i+1][j] + grid[i][j-1] + grid[i][j+1] - 4 * u) * 0.1;
+
+                    nextGrid[i][j] = u + (diffU - reaction + F * (1 - u)) * params.motion;
+                    nextGrid[i][j] = Math.max(0, Math.min(1, nextGrid[i][j]));
+
+                    // Update v component
+                    const diffV = (nextGrid[i-1][j] + nextGrid[i+1][j] + nextGrid[i][j-1] + nextGrid[i][j+1] - 4 * v) * 0.1;
+                    nextGrid[i][j] -= (reaction - k * v + diffV) * params.motion;
+                    nextGrid[i][j] = Math.max(0, Math.min(1, nextGrid[i][j]));
+                }
+            }
+
+            // Swap grids
+            const temp = grid;
+            for (let i = 0; i < GRID_SIZE; i++) {
+                for (let j = 0; j < GRID_SIZE; j++) {
+                    grid[i][j] = nextGrid[i][j];
+                }
+            }
+        }
+
+        function draw() {
+            ctx.fillStyle = `rgba(0, 0, 0, 0.05)`;
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            const cellScaleX = canvas.width / GRID_SIZE;
+            const cellScaleY = canvas.height / GRID_SIZE;
+
+            for (let i = 0; i < GRID_SIZE; i++) {
+                for (let j = 0; j < GRID_SIZE; j++) {
+                    const val = grid[i][j];
+                    if (val > 0.1) {
+                        const size = CELL_SIZE * (0.5 + val * 0.5);
+                        const x = j * cellScaleX + cellScaleX * 0.5;
+                        const y = i * cellScaleY + cellScaleY * 0.5;
+
+                        // Color based on tone parameters
+                        const pulse = params.pulseMin + (val * (params.pulseMax - params.pulseMin));
+                        const alpha = val * 0.8 * pulse;
+
+                        ctx.fillStyle = `hsla(${hue}, ${saturation * 100}%, ${lightness * 100}%, ${alpha})`;
+                        ctx.beginPath();
+                        ctx.arc(x, y, size * 0.5, 0, Math.PI * 2);
+                        ctx.fill();
+                    }
+                }
+            }
+
+            updateGrid();
+            time += params.motion * 0.01;
+        }
+
+        function animate() {
+            draw();
+            requestAnimationFrame(animate);
+        }
+
+        animate();
+    </script>
+</body>
+</html>
+```