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tune.js
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tune.js
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var verbose = 0; // display each move
var moveTime = 50; // ms (+ random element)
///////////////////////////////
if (!window.Worker) {
document.write('<p><b>DUDE, YOUR BROWSER IS TOO OLD TO PLAY CHESS!<p>TRY <a href="http://www.google.co.uk/chrome/">GOOGLE CHROME</a></a><p>');
exit;
}
var args = lozGetURLArgs();
var board = null;
var chess = null;
var e1 = null;
var e2 = null;
var numOpenings = OPENINGS.length;
var numGames = 0;
var numMoves = 0;
var e1Wins = 0;
var e2Wins = 0;
var numDraws = 0;
var first = 1;
var id = 0;
var timeThen = Date.now();
var stopping = 0;
function randMoveTime () {
var r = moveTime + ((moveTime/5) * Math.random()) - (moveTime/10) | 0;
return r;
}
function randomise () {
var t = Date.now();
var m = t % 10000;
var r = 0;
for (var i=0; i<m; i++)
r = r + Math.random();
return r;
}
lozData.page = 'tune.htm';
lozData.idInfo = '#info';
lozData.idStats = '#stats';
function e1Message (e) {
eMessage(e,e1,e2,1);
}
function e2Message (e) {
eMessage(e,e2,e1,2);
}
function eMessage (e,me,tx,n) {
lozData.message = e.data;
lozData.message = lozData.message.trim();
lozData.message = lozData.message.replace(/\s+/g,' ');
lozData.tokens = lozData.message.split(' ');
if (lozData.tokens[0] == 'bestmove') {
var move = {};
lozData.bm = lozGetStr('bestmove','');
lozData.bmFr = lozData.bm[0] + lozData.bm[1];
lozData.bmTo = lozData.bm[2] + lozData.bm[3];
if (lozData.bm.length > 4) {
lozData.bmPr = lozData.bm[4];
move.promotion = lozData.bmPr;
}
else
lozData.bmPr = '';
move.from = lozData.bmFr;
move.to = lozData.bmTo;
if (!chess.move(move))
console.log('e',n,'invalid move',move,lozData.bm);
if (verbose)
board.position(chess.fen());
if (!chess.game_over()) {
tx.postMessage('position startpos moves ' + strMoves());
tx.postMessage('go movetime ' + randMoveTime());
}
else {
board.position(chess.fen());
showEnd(n);
}
}
else if (lozData.tokens[0] == 'info') {
var depth = lozGetInt('depth',0);
var seldepth = lozGetInt('seldepth',0);
if (depth && seldepth)
$(lozData.idStats).html('' + depth + '/' + seldepth + ' ' + numMoves);
}
else if (id < 2 && lozData.tokens[1] == 'name') {
$(lozData.idInfo).append(lozGetStr('Lozza','?')+'<br>');
id++;
}
}
function strMoves() {
var movesStr = '';
var moves = chess.history({verbose: true});
numMoves = moves.length / 2 | 0;
for (var i=0; i < moves.length; i++) {
if (i)
movesStr += ' ';
var move = moves[i];
movesStr += move.from + move.to;
if (move.promotion)
movesStr += move.promotion;
}
return movesStr;
}
function showEnd (n) {
if (n) {
e1.terminate();
e2.terminate();
if (chess.in_checkmate()) {
if (n == 1) {
e1Wins += 1;
}
else if (n == 2) {
e2Wins += 1;
}
else
console.log('showEnd bad n value',n);
}
else {
numDraws += 1;
}
numGames++;
if (numGames != numDraws + e1Wins + e2Wins)
console.log('scoring error',numGames,numDraws,e1Wins,e2Wins);
var e1Points = e1Wins + 0.5 * numDraws;
var e2Points = e2Wins + 0.5 * numDraws;
var e1Percent = 0.5 + e1Points / (e1Points+e2Points) * 100 | 0;
$(lozData.idInfo).html('' + numGames + ': ' + e1Wins + '-' + e2Wins + '-' + numDraws + ' ' + e1Percent + '%<br>');
var timeNow = Date.now();
if (numGames % 100 == 0)
console.log('games per hour',((numGames/(timeNow-timeThen))*1000*60*60)|0);
}
if (stopping)
return;
var choose = Math.random() * numOpenings | 0;
var opening = OPENINGS[choose];
var openMoves = opening.split(' ');
chess.reset();
for (var i=0; i < openMoves.length; i++) {
var move = openMoves[i];
if (!chess.move({from: move[0]+move[1], to: move[2]+move[3]}))
console.log('invalid opening move',i,move);
}
if (verbose)
board.position(chess.fen());
e1 = new Worker('lozza.js');
e1.onmessage = e1Message;
e2 = new Worker('lozza.js');
e2.onmessage = e2Message;
e1.postMessage('uci')
e1.postMessage('ucinewgame')
e1.postMessage('debug off')
e2.postMessage('uci')
e2.postMessage('ucinewgame')
e2.postMessage('debug off')
if (first == 1) {
e1.postMessage('position startpos moves ' + strMoves());
e1.postMessage('go movetime ' + randMoveTime());
first = 2;
}
else if (first == 2){
e2.postMessage('position startpos moves ' + strMoves());
e2.postMessage('go movetime ' + randMoveTime());
first = 1;
}
else
console.log('showEnd bad first value',first);
}
$(function() {
$('#stop').click(function() {
stopping = 1;
console.log('stopping after this game...');
return true;
});
$('#restart').click(function() {
stopping = 0;
showEnd(0);
return true;
});
randomise();
chess = new Chess();
board = new ChessBoard('board', {
showNotation : true,
draggable : false,
position : 'start'
});
showEnd(0);
});