166 lines
No EOL
5.3 KiB
HTML
166 lines
No EOL
5.3 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>Cellular Nebula</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: #000;
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font-family: 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: absolute;
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bottom: 10px;
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right: 10px;
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color: #fff;
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font-size: 10px;
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text-shadow: 0 0 5px rgba(0, 188, 212, 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 resize() {
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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', resize);
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resize();
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// Parameters derived from input
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const MOTION = 0.5;
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const DENSITY = 0.5;
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const COMPLEXITY = 0.5;
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const CONNECTEDNESS = 0.5;
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const LIFESPAN = 0.5;
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const PULSE_AVG = 1.11;
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const DRYNESS = 0.9;
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// Cellular automata grid
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const GRID_SIZE = 64;
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const CELL_SIZE = Math.min(canvas.width, canvas.height) / GRID_SIZE;
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const cols = Math.ceil(canvas.width / CELL_SIZE);
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const rows = Math.ceil(canvas.height / CELL_SIZE);
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// Initialize grid
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let grid = new Array(rows).fill().map(() =>
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new Array(cols).fill().map(() => Math.random() > 0.5 ? 1 : 0)
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);
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// Neighborhood types (Moore neighborhood with varying range)
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const NEIGHBORHOOD = Math.max(1, Math.floor(COMPLEXITY * 4));
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// Colors based on dryness (monochrome)
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const BASE_HUE = 0;
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const SATURATION = 0;
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const LIGHTNESS = DRYNESS > 0.8 ? 90 : 70;
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function drawCell(x, y, alive, age) {
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if (!alive) return;
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const hue = BASE_HUE;
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const saturation = SATURATION;
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const lightness = LIGHTNESS - (age * 5);
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const alpha = DRYNESS > 0.7 ? 0.3 + (age * 0.05) : 0.5;
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ctx.fillStyle = `hsla(${hue}, ${saturation}%, ${lightness}%, ${alpha})`;
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ctx.fillRect(x * CELL_SIZE, y * CELL_SIZE, CELL_SIZE, CELL_SIZE);
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}
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function countAliveNeighbors(x, y) {
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let count = 0;
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for (let i = -NEIGHBORHOOD; i <= NEIGHBORHOOD; i++) {
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for (let j = -NEIGHBORHOOD; j <= NEIGHBORHOOD; j++) {
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if (i === 0 && j === 0) continue;
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const nx = x + i;
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const ny = y + j;
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if (nx >= 0 && nx < cols && ny >= 0 && ny < rows) {
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count += grid[ny][nx];
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}
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}
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}
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return count;
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}
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const rules = [
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// Survival rules (B/S)
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{ births: [3], survive: [2, 3], complexity: 0.3 },
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// Apoptosis rules (more death)
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{ births: [4], survive: [2], complexity: 0.7 },
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// Aging rules (LIFESPAN affects decay)
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{ births: [3], survive: [2, 3], maxAge: 20, complexity: 0.5 }
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];
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// Select active rule based on parameters
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const activeRule = rules[Math.floor(COMPLEXITY * rules.length)];
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function updateGrid() {
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const newGrid = grid.map(arr => [...arr]);
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const ageGrid = grid.map(arr => [...arr].map(cell => cell * (Math.random() * 0.5 + 0.5)));
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for (let y = 0; y < rows; y++) {
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for (let x = 0; x < cols; x++) {
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const alive = grid[y][x];
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const neighbors = countAliveNeighbors(x, y);
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const isBirth = activeRule.births.includes(neighbors);
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const isSurvive = activeRule.survive.includes(neighbors);
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const maxAge = activeRule.maxAge || 10;
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if (!alive && isBirth) {
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newGrid[y][x] = 1;
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ageGrid[y][x] = 0;
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} else if (alive && !isSurvive) {
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newGrid[y][x] = 0;
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ageGrid[y][x] = 0;
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} else if (alive) {
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ageGrid[y][x] += 0.01 * MOTION * PULSE_AVG;
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if (ageGrid[y][x] > maxAge) {
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newGrid[y][x] = 0;
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}
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}
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}
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}
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grid = newGrid;
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}
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let age = 0;
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function animate() {
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ctx.fillStyle = 'rgba(0, 10, 20, 0.05)';
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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updateGrid();
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drawGrid();
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age++;
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requestAnimationFrame(animate);
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}
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function drawGrid() {
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for (let y = 0; y < rows; y++) {
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for (let x = 0; x < cols; x++) {
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drawCell(x, y, grid[y][x], ageGrid[y][x]);
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}
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}
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}
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// Initialize age grid
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const ageGrid = grid.map(arr => [...arr].map(cell => cell * (Math.random() * 0.5 + 0.5)));
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animate();
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</script>
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</body>
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</html>
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``` |