Published
Edited
Mar 17, 2020
Importers
md`# chessbox`
bestmove(stockfish, "go depth 10")
Chess = require('https://cdnjs.cloudflare.com/ajax/libs/chess.js/0.10.2/chess.js')
ChessBoard = {
$; // this tells Observable that this require statement depends on jQuery
const href = await require.resolve("https://chessboardjs.com/css/chessboard.css");
if (!document.getElementById('chessboardjs-css'))
document.head.appendChild(html`<link id='chessboardjs-css' href=${href} rel=stylesheet>`);
return await require('https://bundle.run/chessboardjs@0.0.1');
}
Tal = ({
pieces: {
wiki: 'https://chessboardjs.com/img/chesspieces/wikipedia/{piece}.png',
alpha: 'https://chessboardjs.com/img/chesspieces/alpha/{piece}.png'
},
send: send
});
// Tal.send('go depth 5')
stockfish = {
const workerScript = await require.resolve("stockfish@10/src/stockfish.asm.js")
.then(fetch)
.then(response => response.blob())
.then(blob => URL.createObjectURL(blob, {type: "text/javascript"}));
return new Worker(workerScript);
}
async function send(msg) {
let resolve;
const promise = new Promise(r => resolve = r);
const messages = [];
const messaged = e => {
messages.push(e.data);
if (/^bestmove /.test(e.data)) {
stockfish.onmessage = null;
resolve(messages);
}
};
if (stockfish.onmessage) throw new Error("already listening");
stockfish.onmessage = messaged;
stockfish.postMessage(msg);
return promise;
}
async function bestmove(stockfish, message) {
let resolve;
const promise = new Promise(r => resolve = r);
const messages = [];
const messaged = e => {
messages.push(e.data);
if (/^bestmove /.test(e.data)) {
stockfish.onmessage = null;
resolve(messages);
}
};
if (stockfish.onmessage) throw new Error("already listening");
stockfish.onmessage = messaged;
stockfish.postMessage(message);
return promise;
}
import { windowSize, inNotebookView } from '@trebor/viewable-notebook-template'
import { soFetch } from '@alecglassford/so-fetch'
import { log } from "@trebor/debug-tool"
$ = require('jquery')
windowSize
Tal.pieces
One platform to build and deploy the best data apps
Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
Use Observable Framework to build data apps locally. Use data loaders to build in any language or library, including Python, SQL, and R.
Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.