birth: Drifting Gray Particulates

2026-07-21 05:47:20 +00:00 · 2026-07-21 05:47:20 +00:00 · 101696707b
commit 101696707b
parent 50c9c153eb
1 changed files with 143 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,143 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Cellular Drift</title>
+    <style>
+        body, html {
+            margin: 0;
+            padding: 0;
+            overflow: hidden;
+            background: #0a0a0a;
+            font-family: 'Courier New', monospace;
+        }
+        canvas {
+            display: block;
+            position: fixed;
+            top: 0;
+            left: 0;
+        }
+        #attribution {
+            position: fixed;
+            bottom: 10px;
+            left: 10px;
+            color: #444;
+            font-size: 10px;
+            pointer-events: none;
+            z-index: 100;
+        }
+    </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: 1.06, min: 0.9, max: 1.2 },
+            tone: { anger: 0, sadness: 0, curiosity: 0.1, dryness: 0.9, playfulness: 0, tension: 0 }
+        };
+
+        // Derived settings
+        const gridSize = Math.max(20, Math.floor(20 * params.density));
+        const cellSize = Math.max(2, Math.floor(canvas.width / gridSize));
+        const cols = Math.ceil(canvas.width / cellSize);
+        const rows = Math.ceil(canvas.height / cellSize);
+
+        // Cell states: 0=dead, 1=alive (initially random)
+        const grid = Array(rows).fill().map(() => Array(cols).fill().map(() => Math.random() > 0.7 ? 1 : 0));
+        const nextGrid = Array(rows).fill().map(() => Array(cols).fill(0));
+
+        // Palette based on tone
+        const palette = params.tone.dryness > 0.7 ?
+            [ '#f0f0f0', '#d0d0d0', '#a0a0a0', '#707070' ] :
+            [ '#e0e0e0', '#c0c0c0', '#909090', '#606060' ];
+
+        // Animation state
+        let frameCount = 0;
+        const ruleSet = [1, 0, 1, 0, 0, 1, 0, 0]; // Custom rule pattern
+
+        function updateGrid() {
+            for (let y = 0; y < rows; y++) {
+                for (let x = 0; x < cols; x++) {
+                    // Count live neighbors
+                    let neighbors = 0;
+                    for (let dy = -1; dy <= 1; dy++) {
+                        for (let dx = -1; dx <= 1; dx++) {
+                            if (dx === 0 && dy === 0) continue;
+                            const nx = x + dx;
+                            const ny = y + dy;
+                            if (nx >= 0 && nx < cols && ny >= 0 && ny < rows) {
+                                neighbors += grid[ny][nx];
+                            }
+                        }
+                    }
+
+                    // Apply rule
+                    const idx = neighbors;
+                    nextGrid[y][x] = ruleSet[idx] ? 1 : 0;
+
+                    // Morphing based on complexity
+                    if (params.complexity > 0.3 && Math.random() < params.complexity * 0.02) {
+                        nextGrid[y][x] = grid[y][x] ? 0 : 1;
+                    }
+                }
+            }
+
+            // Swap grids
+            [grid, nextGrid].forEach(arr => arr.forEach(row => row.fill(0)));
+            grid.forEach((row, y) => row.forEach((_, x) => grid[y][x] = nextGrid[y][x]));
+        }
+
+        function drawGrid() {
+            ctx.fillStyle = '#0a0a0a';
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            for (let y = 0; y < rows; y++) {
+                for (let x = 0; x < cols; x++) {
+                    if (grid[y][x]) {
+                        const size = cellSize * (0.3 + 0.7 * params.pulse.avg * (1 + Math.sin(frameCount * params.motion * 0.05) * 0.1));
+                        const colorIdx = Math.floor(params.tone.dryness * (palette.length - 1));
+                        ctx.fillStyle = palette[colorIdx];
+                        ctx.beginPath();
+                        ctx.arc(
+                            x * cellSize + cellSize/2,
+                            y * cellSize + cellSize/2,
+                            size/2,
+                            0,
+                            Math.PI * 2
+                        );
+                        ctx.fill();
+                    }
+                }
+            }
+        }
+
+        function animate() {
+            frameCount++;
+            updateGrid();
+            drawGrid();
+            requestAnimationFrame(animate);
+        }
+
+        animate();
+    </script>
+</body>
+</html>