139 lines
No EOL
4.1 KiB
HTML
139 lines
No EOL
4.1 KiB
HTML
```html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Static Fields</title>
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<style>
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body {
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margin: 0;
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overflow: hidden;
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background: #0a0a0a;
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color: #f0f0f0;
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font-family: 'Courier New', monospace;
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}
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canvas {
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display: block;
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}
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#attribution {
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position: fixed;
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bottom: 20px;
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right: 20px;
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font-size: 10px;
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opacity: 0.5;
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}
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</style>
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</head>
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<body>
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<canvas id="canvas"></canvas>
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<div id="attribution">neurameba · motd.social</div>
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<script>
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const canvas = document.getElementById('canvas');
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const ctx = canvas.getContext('2d');
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function resizeCanvas() {
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canvas.width = window.innerWidth;
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canvas.height = window.innerHeight;
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}
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window.addEventListener('resize', resizeCanvas);
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resizeCanvas();
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// Cellular automata parameters
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const cols = Math.floor(canvas.width * 0.02);
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const rows = Math.floor(canvas.height * 0.02);
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const cellSize = Math.min(canvas.width / cols, canvas.height / rows);
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// CA grid and state
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let grid = new Array(cols).fill().map(() => new Array(rows).fill(0));
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let nextGrid = new Array(cols).fill().map(() => new Array(rows).fill(0));
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// Initialize with pattern based on parameters
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function initGrid() {
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for (let i = 0; i < cols; i++) {
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for (let j = 0; j < rows; j++) {
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// Density parameter affects initial state
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grid[i][j] = Math.random() < 0.3 ? 1 : 0;
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}
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}
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}
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// CA rules with variation based on parameters
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function computeCell(i, j) {
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let sum = 0;
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for (let di = -1; di <= 1; di++) {
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for (let dj = -1; dj <= 1; dj++) {
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if (di === 0 && dj === 0) continue;
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const ni = (i + di + cols) % cols;
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const nj = (j + dj + rows) % rows;
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sum += grid[ni][nj];
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}
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}
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// Conway's Game of Life with mutation based on complexity
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if (grid[i][j] === 1) {
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nextGrid[i][j] = (sum === 2 || sum === 3) ? 1 : 0;
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} else {
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nextGrid[i][j] = (sum === 3) ? 1 : 0;
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}
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// Add some random mutation based on complexity
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if (Math.random() < 0.01 * 0.5) {
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nextGrid[i][j] = 1 - nextGrid[i][j];
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}
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}
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// Drawing with dryness parameter
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function drawCell(i, j) {
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if (grid[i][j] === 0) return;
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const x = i * cellSize;
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const y = j * cellSize;
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const size = cellSize * 0.8;
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// Dryness makes everything monochrome
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ctx.fillStyle = `hsl(0, 0%, ${Math.random() * 30 + 10}%)`;
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ctx.fillRect(x + cellSize * 0.1, y + cellSize * 0.1, size, size);
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}
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// Animation with pulse
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let pulse = 1.05;
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let pulseDir = -0.01;
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function animate() {
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// Update pulse
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pulse += pulseDir;
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if (pulse > 1.10) pulseDir = -0.01;
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if (pulse < 1.00) pulseDir = 0.01;
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// Clear with dark background
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ctx.fillStyle = '#0a0a0a';
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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// Update cellular automata
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for (let i = 0; i < cols; i++) {
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for (let j = 0; j < rows; j++) {
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computeCell(i, j);
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}
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}
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// Swap grids
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[grid, nextGrid] = [nextGrid, grid];
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// Draw cells
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for (let i = 0; i < cols; i++) {
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for (let j = 0; j < rows; j++) {
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drawCell(i, j);
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}
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}
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requestAnimationFrame(animate);
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}
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initGrid();
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animate();
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</script>
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</body>
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</html>
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``` |