From b1b4bf281f2f9826873be976db9df2df43277544 Mon Sep 17 00:00:00 2001
From: motd_admin <admin@motd.social>
Date: Wed, 25 Mar 2026 21:45:52 +0000
Subject: [PATCH] birth: Fading Echoes of Light

---
 index.html | 265 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 265 insertions(+)
 create mode 100644 index.html
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..2cade5f
--- /dev/null
+++ b/index.html
@@ -0,0 +1,265 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Neurameba Cellular Automata</title>
+    <style>
+        body {
+            margin: 0;
+            overflow: hidden;
+            background: #0a0a0a;
+            font-family: 'Courier New', monospace;
+        }
+        canvas {
+            display: block;
+        }
+        #attribution {
+            position: absolute;
+            bottom: 10px;
+            right: 10px;
+            color: #555;
+            font-size: 10px;
+            transform: rotate(-0.5deg);
+        }
+    </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();
+
+        // Color palette (dryness=monochrome)
+        const palette = [
+            '#1a1a1a', '#2d2d2d', '#4a4a4a',
+            '#6b6b6b', '#999999', '#c0c0c0'
+        ];
+
+        // Cellular automata parameters
+        const RULES = {
+            survival: [2, 3],
+            birth: [3, 4],
+            density: 0.457,
+            complexity: 0.438,
+            motion: 0.479,
+            connectedness: 0.501,
+            lifespan: 0.489,
+            pulse: { avg: 0.39, min: 0.30, max: 1.60 }
+        };
+
+        // Grid setup
+        const CELL_SIZE = 4;
+        const GRID_WIDTH = Math.floor(canvas.width / CELL_SIZE);
+        const GRID_HEIGHT = Math.floor(canvas.height / CELL_SIZE);
+
+        let grid = new Array(GRID_HEIGHT).fill().map(() =>
+            new Array(GRID_WIDTH).fill(0).map(() =>
+                Math.random() < RULES.density ? 1 : 0
+            )
+        );
+
+        let nextGrid = JSON.parse(JSON.stringify(grid));
+        let frameCount = 0;
+        let pulseTimer = 0;
+
+        // Cellular automaton rules
+        function updateGrid() {
+            pulseTimer += (Math.random() * 0.1 - 0.05) * RULES.pulse.max;
+            if (pulseTimer > RULES.pulse.max) pulseTimer = RULES.pulse.max;
+            if (pulseTimer < RULES.pulse.min) pulseTimer = RULES.pulse.min;
+            pulseTimer += RULES.pulse.avg * 0.1;
+
+            for (let y = 0; y < GRID_HEIGHT; y++) {
+                for (let x = 0; x < GRID_WIDTH; x++) {
+                    const neighbors = countNeighbors(x, y);
+
+                    if (grid[y][x] === 1) {
+                        nextGrid[y][x] = RULES.survival.includes(neighbors) ? 1 : 0;
+                    } else {
+                        nextGrid[y][x] = RULES.birth.includes(neighbors) ? 1 : 0;
+                    }
+                }
+            }
+
+            // Apply complexity variation
+            if (Math.random() < RULES.complexity * 0.1) {
+                if (Math.random() < 0.5) {
+                    flipRandomCell();
+                } else {
+                    bubbleSortGrid();
+                }
+            }
+
+            // Apply connectedness variation
+            if (Math.random() < RULES.connectedness * 0.05) {
+                connectComponents();
+            }
+
+            // Swap grids
+            [grid, nextGrid] = [nextGrid, grid];
+
+            // Apply lifespan effect
+            if (RULES.lifespan > 0.5) {
+                fadeTrails();
+            } else {
+                evaporateCells();
+            }
+
+            frameCount++;
+        }
+
+        function countNeighbors(x, y) {
+            let count = 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 + GRID_WIDTH) % GRID_WIDTH;
+                    const ny = (y + dy + GRID_HEIGHT) % GRID_HEIGHT;
+                    count += grid[ny][nx];
+                }
+            }
+            return count;
+        }
+
+        function flipRandomCell() {
+            const x = Math.floor(Math.random() * GRID_WIDTH);
+            const y = Math.floor(Math.random() * GRID_HEIGHT);
+            nextGrid[y][x] = 1 - nextGrid[y][x];
+        }
+
+        function bubbleSortGrid() {
+            for (let i = 0; i < 10; i++) {
+                const x1 = Math.floor(Math.random() * GRID_WIDTH);
+                const y1 = Math.floor(Math.random() * GRID_HEIGHT);
+                const x2 = Math.floor(Math.random() * GRID_WIDTH);
+                const y2 = Math.floor(Math.random() * GRID_HEIGHT);
+
+                [nextGrid[y1][x1], nextGrid[y2][x2]] = [nextGrid[y2][x2], nextGrid[y1][x1]];
+            }
+        }
+
+        function connectComponents() {
+            for (let i = 0; i < 5; i++) {
+                const x = Math.floor(Math.random() * GRID_WIDTH);
+                const y = Math.floor(Math.random() * GRID_HEIGHT);
+                if (nextGrid[y][x] === 1) {
+                    growConnection(x, y);
+                }
+            }
+        }
+
+        function growConnection(x, y) {
+            const steps = Math.floor(Math.random() * 5) + 1;
+            for (let i = 0; i < steps; i++) {
+                const nx = (x + Math.floor(Math.random() * 3) - 1 + GRID_WIDTH) % GRID_WIDTH;
+                const ny = (y + Math.floor(Math.random() * 3) - 1 + GRID_HEIGHT) % GRID_HEIGHT;
+                nextGrid[ny][nx] = 1;
+                x = nx;
+                y = ny;
+            }
+        }
+
+        function fadeTrails() {
+            for (let y = 0; y < GRID_HEIGHT; y++) {
+                for (let x = 0; x < GRID_WIDTH; x++) {
+                    if (nextGrid[y][x] === 1 && Math.random() > 0.8) {
+                        nextGrid[y][x] = 0;
+                    }
+                }
+            }
+        }
+
+        function evaporateCells() {
+            for (let y = 0; y < GRID_HEIGHT; y++) {
+                for (let x = 0; x < GRID_WIDTH; x++) {
+                    nextGrid[y][x] = Math.max(0, nextGrid[y][x] - 0.01);
+                }
+            }
+        }
+
+        // Drawing
+        function drawGrid() {
+            ctx.fillStyle = '#0a0a0a';
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            const cellPadding = 0.5 * CELL_SIZE * (1 - RULES.motion);
+            const gridAlpha = RULES.lifespan * 0.7 + 0.3;
+
+            for (let y = 0; y < GRID_HEIGHT; y++) {
+                for (let x = 0; x < GRID_WIDTH; x++) {
+                    if (grid[y][x] > 0) {
+                        const intensity = Math.min(1, grid[y][x] * 0.8 + pulseTimer * 0.2);
+                        const baseColor = palette[Math.floor(intensity * (palette.length - 1))];
+                        ctx.fillStyle = baseColor;
+
+                        const px = x * CELL_SIZE + cellPadding;
+                        const py = y * CELL_SIZE + cellPadding;
+                        const size = CELL_SIZE - cellPadding * 2;
+
+                        ctx.fillRect(px, py, size * intensity, size * intensity);
+
+                        if (Math.random() < 0.1 * RULES.complexity) {
+                            drawCellDetail(px, py, size, intensity);
+                        }
+                    }
+                }
+            }
+        }
+
+        function drawCellDetail(px, py, size, intensity) {
+            ctx.strokeStyle = palette[Math.floor(intensity * (palette.length - 1))] + '80';
+            ctx.lineWidth = 0.5;
+
+            switch (Math.floor(Math.random() * 3)) {
+                case 0:
+                    // Diagonal lines
+                    ctx.beginPath();
+                    ctx.moveTo(px, py);
+                    ctx.lineTo(px + size, py + size);
+                    ctx.stroke();
+                    break;
+                case 1:
+                    // Small dot
+                    ctx.beginPath();
+                    ctx.arc(
+                        px + size * 0.5,
+                        py + size * 0.5,
+                        size * 0.2 * Math.random(),
+                        0,
+                        Math.PI * 2
+                    );
+                    ctx.fill();
+                    break;
+                case 2:
+                    // Partial fill
+                    ctx.fillRect(
+                        px + size * 0.2 * Math.random(),
+                        py + size * 0.2 * Math.random(),
+                        size * 0.6 * Math.random(),
+                        size * 0.6 * Math.random()
+                    );
+                    break;
+            }
+        }
+
+        // Animation loop
+        function animate() {
+            updateGrid();
+            drawGrid();
+            requestAnimationFrame(animate);
+        }
+
+        animate();
+    </script>
+</body>
+</html>
\ No newline at end of file
