birth: Morphic Seas of Entropy

2026-07-29 05:47:20 +00:00 · 2026-07-29 05:47:20 +00:00 · 6ea7b5a79a
commit 6ea7b5a79a
parent 059d2e9f3e
1 changed files with 137 additions and 0 deletions
--- a/index.html
+++ b/index.html
@ -0,0 +1,137 @@
+```html
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Morphic Seas</title>
+    <style>
+        body {
+            margin: 0;
+            overflow: hidden;
+            background-color: #0a0a0a;
+            font-family: 'Courier New', monospace;
+        }
+        canvas {
+            display: block;
+        }
+        #info {
+            position: absolute;
+            bottom: 20px;
+            left: 20px;
+            color: rgba(255, 255, 255, 0.6);
+            font-size: 12px;
+        }
+    </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();
+
+        // Fallback for non-compliant browsers
+        if (!ctx) {
+            document.body.innerHTML = '<h1>Canvas not supported</h1><p>Please use a modern browser that supports HTML5 canvas.</p>';
+            throw new Error('Canvas not supported');
+        }
+
+        // Reaction-diffusion simulation
+        const size = 128;
+        let gridA = createRandomGrid(size, 0.5);
+        let gridB = createRandomGrid(size, 0.25);
+        const dA = 1.0;
+        const dB = 0.5;
+        const feed = 0.055;
+        const kill = 0.062;
+        const dt = 1.0;
+
+        function createRandomGrid(size, density) {
+            const grid = new Float64Array(size * size);
+            for (let i = 0; i < grid.length; i++) {
+                grid[i] = Math.random() < density ? 1 : 0;
+            }
+            return grid;
+        }
+
+        function laplacian(grid, index, size) {
+            const x = index % size;
+            const y = Math.floor(index / size);
+            let sum = 0;
+            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 + size) % size;
+                    const ny = (y + dy + size) % size;
+                    sum += grid[ny * size + nx];
+                    count++;
+                }
+            }
+
+            return sum / count - grid[index];
+        }
+
+        function update() {
+            const nextA = new Float64Array(gridA.length);
+            const nextB = new Float64Array(gridB.length);
+
+            for (let i = 0; i < gridA.length; i++) {
+                const a = gridA[i];
+                const b = gridB[i];
+                const la = laplacian(gridA, i, size);
+                const lb = laplacian(gridB, i, size);
+
+                nextA[i] = a + (dA * la - a * b * b + feed * (1 - a)) * dt;
+                nextB[i] = b + (dB * lb + a * b * b - (kill + feed) * b) * dt;
+
+                nextA[i] = Math.max(0, Math.min(1, nextA[i]));
+                nextB[i] = Math.max(0, Math.min(1, nextB[i]));
+            }
+
+            gridA = nextA;
+            gridB = nextB;
+        }
+
+        function draw() {
+            const imageData = ctx.createImageData(size, size);
+            const data = imageData.data;
+
+            for (let i = 0; i < size * size; i++) {
+                const idx = i * 4;
+                const a = gridA[i];
+                const b = gridB[i];
+
+                // Greyish teal palette (curiosity=0.7, dryness=0.9)
+                const value = (a - b) * 0.5 + 0.5;
+                const grey = Math.floor(value * 200);
+                data[idx] = data[idx + 1] = data[idx + 2] = grey;
+                data[idx + 3] = 255;
+            }
+
+            ctx.imageSmoothingEnabled = false;
+            ctx.scale(window.innerWidth / size, window.innerHeight / size);
+            ctx.putImageData(imageData, 0, 0);
+            ctx.setTransform(1, 0, 0, 1, 0, 0);
+        }
+
+        function animate() {
+            update();
+            draw();
+            requestAnimationFrame(animate);
+        }
+
+        animate();
+    </script>
+</body>
+</html>
+```