[wip] game of life, 1D to 2d
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parent
56566aa802
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98
index.html
98
index.html
@ -1,98 +0,0 @@
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<html>
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<head>
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<title>Cellular Automaton Explorer</title>
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<link rel="stylesheet" href="./style.css" >
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</head>
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<body>
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<sidebar>
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<h1>Cellular Automaton Explorer</h1>
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<div class="menu-row">
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<h2>Elementary Cellular Automata</h2>
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<div class="menu-row-content">
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<form name="rules">
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<div class="form-field">
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<label>Rules</label>
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</div>
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<div class="form-field">
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<label>111
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<input type="checkbox" name="111" checked>
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</label>
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</div>
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<div class="form-field">
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<label>110
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<input type="checkbox" name="110">
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</label>
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</div>
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<div class="form-field">
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<label>101
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<input type="checkbox" name="101" checked>
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</label>
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</div>
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<div class="form-field">
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<label>100
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<input type="checkbox" name="100">
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</label>
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</div>
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<div class="form-field">
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<label>011
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<input type="checkbox" name="011" checked>
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</label>
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</div>
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<div class="form-field">
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<label>010
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<input type="checkbox" name="010">
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</label>
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</div>
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<div class="form-field">
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<label>001
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<input type="checkbox" name="001">
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</label>
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</div>
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<div class="form-field">
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<label>000
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<input type="checkbox" name="000" checked>
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</label>
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</div>
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<div class="form-field">
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<input type="button" name="start" id="start" value="start"/>
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</div>
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<div class="form-field">
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<input type="button" name="stop" id="stop" value="stop"/>
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</div>
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<div class="form-field">
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<input type="button" name="reset" id="reset" value="reset"/>
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</div>
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</form>
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<form>
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<div class="form-field">
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<label for="live">Living cell color</label>
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<input name="live" type="color" id="live" value="#000000"/>
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</div>
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<div class="form-field">
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<label for="dead">Dead cell color</label>
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<input name="dead" type="color" id="dead" value="#99FF00"/>
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</div>
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<div class="form-field">
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<label>Cell size</label>
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<input name="cellSize" type="number" id="cellSize" value="5"/>
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</div>
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<div class="form-field">
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<label>Loop
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<input name="loop" type="checkbox" id="loop"/>
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</label>
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</div>
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</form>
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</div>
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</div>
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<!-- <div class="menu-row"> -->
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<!-- <h2>2D Cellular Automata</h2> -->
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<!-- <div class="menu-row-content"> -->
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<!-- </div> -->
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<!-- </div> -->
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</sidebar>
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<main id="main">
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<canvas width="500" height="500" id="canvas"></canvas>
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</main>
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<script src="main.js"></script>
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</body>
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</html>
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135
main.js
135
main.js
@ -1,135 +0,0 @@
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let drawing = 1;
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const form = Array.from(document.forms.rules.elements);
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const canvas = document.querySelector('#canvas');
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const ctx = canvas.getContext('2d');
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const main = document.querySelector('#main');
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const dead = document.querySelector('#dead');
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const live = document.querySelector('#live');
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const startBtn = document.querySelector('#start');
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const resetBtn = document.querySelector('#reset');
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const stopBtn = document.querySelector('#stop');
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const cellSize = document.querySelector('#cellSize');
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const loop = document.querySelector('#loop');
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const menuRow = document.querySelectorAll('.menu-row');
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canvas.width = main.offsetWidth * 0.9;
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canvas.height = main.offsetHeight * 0.9;
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// TODO: Hide iterator inside
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function evolve(state, acc, rules) {
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const [x, y, z, ...xs] = state;
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if (!xs.length) {
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return acc[acc.length - 1] + acc + acc[0];
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}
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const rule = x + y + z;
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const newAcc = acc.concat(rules[rule]);
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return evolve(y + z + xs.join(''), newAcc, rules);
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}
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function getRules() {
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const rules = {};
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form.reduce((_, i) => {
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if (i !== undefined
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&& i.type === 'checkbox') {
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if (i.checked) rules[i.name] = '1';
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else rules[i.name] = '0';
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}
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return rules;
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}, rules);
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return rules;
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}
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function getDrawingValues(state, acc) {
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const cellDim = cellSize.value;
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return Object.keys(state).map(
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(key) => {
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const fillStyle = state[key] === '1' ? live.value : dead.value;
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return {
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move: [key * cellDim, acc * cellDim],
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fill: [key * cellDim, acc * cellDim, cellDim, cellDim],
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fillStyle,
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};
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},
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);
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}
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function getRandomInt(min, max) {
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const minVal = Math.ceil(min);
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const maxVal = Math.floor(max);
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// The maximum is exclusive and the minimum is inclusive
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return Math.floor(Math.random() * (maxVal - minVal) + minVal);
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}
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async function sleep(ms) {
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await new Promise((resolve) => setTimeout(resolve, ms));
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}
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async function draw(state, acc) {
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if (drawing === 0) {
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return;
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}
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const position = acc * cellSize.value;
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if (position >= canvas.height && !loop.checked) return;
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const rules = getRules();
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const newState = evolve(state, '', rules);
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const line = getDrawingValues(newState, acc);
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line.map((cell) => {
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ctx.moveTo(...cell.move);
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ctx.fillRect(...cell.fill);
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ctx.fillStyle = cell.fillStyle;
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return cell;
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});
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await sleep(40);
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const newAcc = () => {
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if (position >= canvas.height && loop.checked) return 0;
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return acc;
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};
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await draw(newState, newAcc() + 1);
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}
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function reset() {
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drawing = 0;
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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}
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startBtn.addEventListener('click', async () => {
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reset();
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await sleep(60);
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drawing = 1;
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const initialState = [...Array(canvas.width)].map(
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() => getRandomInt(0, 2).toString(),
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).join('');
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draw(initialState, 1);
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});
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resetBtn.addEventListener('click', async () => {
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reset();
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});
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stopBtn.addEventListener('click', async () => {
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drawing = 0;
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});
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menuRow.forEach((elem) => {
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elem.querySelector('h2').addEventListener('click', async (e) => {
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// ugly
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const menuDisplay = e.currentTarget.parentNode.querySelector('.menu-row-content').style;
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if (menuDisplay.display !== 'none') menuDisplay.setProperty('display', 'none');
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else menuDisplay.setProperty('display', 'block');
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});
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});
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@ -1,13 +1,59 @@
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// TODO: Hide accumulator inside
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function evolve(state, acc, rules) {
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const [x, y, z, ...xs] = state;
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// get the next evolution of a 1D CA
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function evolve(state, rules) {
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function evolveAcc(s, acc) {
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const [x, y, z, ...xs] = s;
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if (!xs.length) {
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return acc[acc.length - 1] + acc + acc[0];
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}
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const rule = x + y + z;
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const newAcc = acc.concat(rules[rule]);
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return evolve(y + z + xs.join(''), newAcc, rules);
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return evolveAcc(y + z + xs.join(''), newAcc);
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}
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return evolveAcc(state, '');
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}
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// create a 2D board from a 1D initial state
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function createBoard(state, rules, height) {
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function createBoardAcc(s, h, acc) {
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if (h === 0) return acc;
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const newState = evolve(state, rules);
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const newAcc = acc.concat(state);
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return createBoardAcc(newState, h - 1, newAcc);
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}
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return createBoardAcc(state, height, []).map(
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(row) => row.split(''))
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}
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function getCellNeighbors(board, cellCoordinates) {
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const [x, y] = cellCoordinates;
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const rowLength = board[0].length; // caca?
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// handles board edges where the cell is missing neighbors
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function getCell(xx, yy) {
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// handles negative index and index bigger than its array length
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function guard(index, array) {
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if (index > array.length - 1) return 0;
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if (index < 0) return array.length - 1;
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return index;
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}
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const safeX = guard(xx, board);
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const safeY = guard(yy, rowLength);
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return board[safeX][safeY];
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}
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// the current cell is not included in the result
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return [
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getCell(x - 1, y - 1), getCell(x, y - 1),
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getCell(x + 1, y - 1), getCell(x - 1, y),
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getCell(x + 1, y), getCell(x - 1, y + 1),
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getCell(x, y + 1), getCell(x + 1, y - 1),
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];
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}
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function getNeighborsSum(cells) {
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return cells.reduce((cell, acc) => cell + acc, 0);
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}
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function conwayRules(cell, neighbors) {
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@ -21,11 +67,23 @@ function conwayRules(cell, neighbors) {
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return cell;
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}
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function evolve2d(board, rulesFn) {
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return board.map((row, x) => row.map((cell, y) => {
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const neighbors = getCellNeighbors(board, [x, y]);
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const sum = getNeighborsSum(neighbors);
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return rulesFn(cell, sum);
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}));
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}
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function getDrawingValues(state, acc, cell) {
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const d = cell.dimension;
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return Object.keys(state).map(
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(key) => {
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const fillStyle = state[key] === '1' ? cell.liveColor : cell.deadColor;
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const fillStyle = (() => {
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if (state[key] === '1') return cell.liveColor;
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return cell.deadColor;
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})();
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return {
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move: [key * d, acc * d],
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fill: [key * d, acc * d, d, d],
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@ -35,18 +93,18 @@ function getDrawingValues(state, acc, cell) {
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);
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}
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function initialState1D(width, initFn, args) {
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function initialState1d(width, initFn, args) {
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return [...Array(width)].map(
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() => initFn(...args).toString(),
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).join('');
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}
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function initialState2D(width, height, initFn, args) {
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function initialState2d(width, height, initFn, args) {
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return [...Array(height)].map(
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() => [...Array(width)].map(() => initFn(...args)),
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);
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}
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export {
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evolve, getDrawingValues, initialState1D, initialState2D,
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getDrawingValues, initialState1d, initialState2d, evolve, evolve2d, conwayRules, createBoard,
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};
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@ -1,5 +1,7 @@
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import { getRandomInt, sleep } from './common.js';
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import { evolve, getDrawingValues, initialState1D } from './automata.js';
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import { getRandomInt, sleep, hexToRgb } from './common.js';
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import {
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evolve, evolve2d, getDrawingValues, initialState1d, conwayRules, createBoard,
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} from './automata.js';
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let drawing = 1;
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@ -10,6 +12,7 @@ const main = document.querySelector('#main');
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const dead = document.querySelector('#dead');
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const live = document.querySelector('#live');
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const startBtn = document.querySelector('#start');
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const startBtn2d = document.querySelector('#start2d');
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const resetBtn = document.querySelector('#reset');
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const stopBtn = document.querySelector('#stop');
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const cellSize = document.querySelector('#cellSize');
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@ -39,41 +42,70 @@ function reset() {
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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}
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// TODO: Hide accumulator inside maybe?
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async function draw(state, acc) {
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if (drawing === 0) {
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return;
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}
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const cell = {
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dimension: cellSize.value,
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const cellProperties = {
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dimensions: cellSize.value,
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liveColor: live.value,
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deadColor: dead.value,
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};
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const position = acc * cell.dimension;
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if (position >= canvas.height && !loop.checked) return;
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// const position = acc * cell.dimension;
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// if (position >= canvas.height && !loop.checked) return;
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const rules = getRules();
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const newState = evolve(state, '', rules);
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const line = getDrawingValues(newState, acc, cell);
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const board = createBoard(state, rules, canvas.height);
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// const newState = evolve(state, rules);
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// const line = getDrawingValues(newState, acc, cell);
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line.map((c) => {
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ctx.moveTo(...c.move);
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ctx.fillRect(...c.fill);
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ctx.fillStyle = c.fillStyle;
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return c;
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board.reduce((row, prevRow, x) => {
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const d = cellProperties.dimensions;
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row.reduce((cell) => {
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ctx.moveTo(x * d, y * d);
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ctx.fillRect(x * d, x * d, d, d);
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ctx.fillStyle = (() => {
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if (cell === '1') return cellProperties.liveColor;
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return cellProperties.deadColor;
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})();
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})
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});
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await sleep(40);
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// await sleep(40);
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const newAcc = () => {
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if (position >= canvas.height && loop.checked) return 0;
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return acc;
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};
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// const newAcc = (() => {
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// if (position >= canvas.height && loop.checked) return 0;
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// return acc;
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// })();
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await draw(newState, newAcc() + 1);
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// await draw(newState, newAcc + 1);
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}
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async function draw2d(board, acc) {
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if (drawing === 0) {
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}
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}
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// Listeners
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startBtn2d.addEventListener('click', async () => {
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reset();
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await sleep(60);
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drawing = 1;
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const initialState = initialState2d(canvas.width, canvas.height, getRandomInt, [0, 2]);
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const nextState = evolve2d(initialState, conwayRules);
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draw2d(initialState, 0);
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});
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startBtn.addEventListener('click', async () => {
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reset();
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@ -81,9 +113,9 @@ startBtn.addEventListener('click', async () => {
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drawing = 1;
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const initialState = initialState1D(canvas.width, getRandomInt, [0, 2]);
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const initialState = initialState1d(canvas.width, getRandomInt, [0, 2]);
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draw(initialState, 1);
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draw(initialState, 0);
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});
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resetBtn.addEventListener('click', async () => {
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62
style.css
62
style.css
@ -1,62 +0,0 @@
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* {
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margin: 0;
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padding: 0;
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}
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body {
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background: black;
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color: white;
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display: flex;
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font-family: Courier New;
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}
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canvas {
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background: #110812;
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margin: 20px 0 0 0;
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}
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h1, h2 {
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font-weight: bold;
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}
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h1 {
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font-size: large;
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}
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.menu-row h2 {
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font-size: medium;
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margin-left: 10px;
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padding: 10px;
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cursor: pointer;
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border: 2px solid darkgrey;
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}
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sidebar {
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flex: auto;
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padding: 10px;
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}
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input[type="button"] {
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min-width: 60px;
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padding: 5px;
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font-weight: bold;
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}
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.form-field {
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display: flex;
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margin: 10px;
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}
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.menu-row {
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flex: 1;
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margin: 5px 0;
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}
|
||||
|
||||
label, .form-field label {
|
||||
margin-right: 10px;
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
#main {
|
||||
flex: 4;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user