From 9f5ce0bec04ed17191a5b5a39f1e4db5ab278d1c Mon Sep 17 00:00:00 2001
From: motd_admin <admin@motd.social>
Date: Thu, 26 Mar 2026 21:47:14 +0000
Subject: [PATCH] birth: Diffusive Pulse Field

---
 index.html | 121 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 index.html
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..27b89f3
--- /dev/null
+++ b/index.html
@@ -0,0 +1,121 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Diffusive Pulse</title>
+    <style>
+        body { margin: 0; overflow: hidden; background: #0a0a0a; }
+        canvas { display: block; }
+        #info { position: absolute; bottom: 10px; right: 10px; color: #fff; font-family: monospace; font-size: 10px; }
+    </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');
+
+        function resizeCanvas() {
+            canvas.width = window.innerWidth;
+            canvas.height = window.innerHeight;
+        }
+        window.addEventListener('resize', resizeCanvas);
+        resizeCanvas();
+
+        const params = {
+            motion: 0.5,
+            density: 0.5,
+            complexity: 0.5,
+            connectedness: 0.5,
+            lifespan: 0.5,
+            pulse: { avg: 0.91, min: 0.3, max: 1.4 },
+            tone: { dryness: 0.9, curiosity: 0.1 }
+        };
+
+        const gridSize = 60;
+        const cols = Math.floor(canvas.width / gridSize) + 2;
+        const rows = Math.floor(canvas.height / gridSize) + 2;
+        const cells = new Array(cols * rows).fill(0);
+
+        // Initialize with sparse random cells
+        for (let i = 0; i < cells.length * 0.1; i++) {
+            const idx = Math.floor(Math.random() * cells.length);
+            cells[idx] = Math.random() > 0.5 ? 1 : 0.5;
+        }
+
+        const kernel = () => [
+            [0.05, 0.2, 0.05],
+            [0.2, -1, 0.2],
+            [0.05, 0.2, 0.05]
+        ];
+
+        function updateCells() {
+            const newCells = new Array(cols * rows).fill(0);
+            const k = kernel();
+
+            for (let y = 0; y < rows; y++) {
+                for (let x = 0; x < cols; x++) {
+                    let sum = 0;
+                    for (let ky = -1; ky <= 1; ky++) {
+                        for (let kx = -1; kx <= 1; kx++) {
+                            const nx = (x + kx + cols) % cols;
+                            const ny = (y + ky + rows) % rows;
+                            const idx = ny * cols + nx;
+                            const weight = k[ky + 1][kx + 1];
+                            sum += cells[idx] * weight;
+                        }
+                    }
+
+                    const idx = y * cols + x;
+                    newCells[idx] = Math.min(Math.max(sum, 0), 1);
+                }
+            }
+
+            // Apply pulse variation
+            const pulseFactor = params.pulse.avg * (1 + 0.2 * Math.sin(performance.now() * 0.0005));
+            for (let i = 0; i < newCells.length; i++) {
+                newCells[i] *= pulseFactor;
+            }
+
+            cells.splice(0, cells.length, ...newCells);
+        }
+
+        function draw() {
+            ctx.fillStyle = '#0a0a0a';
+            ctx.fillRect(0, 0, canvas.width, canvas.height);
+
+            ctx.strokeStyle = `rgba(255, 255, 255, 0.3)`;
+            ctx.lineWidth = 1;
+
+            for (let y = 0; y < rows; y++) {
+                for (let x = 0; x < cols; x++) {
+                    const idx = y * cols + x;
+                    const val = cells[idx];
+
+                    if (val > 0.01) {
+                        const alpha = val * 0.7;
+                        const size = gridSize * 0.8;
+                        const px = x * gridSize + gridSize/2;
+                        const py = y * gridSize + gridSize/2;
+
+                        ctx.fillStyle = `rgba(255, 255, 255, ${alpha})`;
+                        ctx.beginPath();
+                        ctx.arc(px, py, size * val, 0, Math.PI * 2);
+                        ctx.fill();
+                    }
+                }
+            }
+        }
+
+        function animate() {
+            updateCells();
+            draw();
+            requestAnimationFrame(animate);
+        }
+
+        animate();
+    </script>
+</body>
+</html>
\ No newline at end of file
