var fens = [];
var move_override = 0;
var includetransp = true;
+var stockfish = new Worker('/js/stockfish.js');
+var engine_running = false;
+var engine_replacement_callback = null;
+var recommended_dest = null;
var entity_map = {
"&": "&",
board.position(current_display_fen());
}
+ $("#board").find('.square-55d63').removeClass('nonuglyhighlight');
if (move_override > 0) {
var last_move = history[move_override - 1];
var highlight_from = last_move.from;
var highlight_to = last_move.to;
- $("#board").find('.square-55d63').removeClass('nonuglyhighlight');
$("#board").find('.square-' + highlight_from).addClass('nonuglyhighlight');
$("#board").find('.square-' + highlight_to).addClass('nonuglyhighlight');
}
[ "Move", TYPE_MOVE ],
[ "Games", TYPE_INTEGER ],
[ "%", TYPE_RATIO ],
+ [ "CGames", TYPE_INTEGER ],
+ [ "Hum", TYPE_RATIO ],
[ "Win%", TYPE_RATIO ],
[ "WWin", TYPE_INTEGER ],
[ "%WW", TYPE_RATIO ],
var white = parseInt(move['white']);
var draw = parseInt(move['draw']);
var black = parseInt(move['black']);
+ var computer = parseInt(move['computer']);
line.push(move['move']); // Move.
transpose_only.push(move['transpose_only']);
var num = white + draw + black;
line.push(num); // N.
line.push(num / total_num); // %.
+ line.push(computer); // CGames.
+
+ // Adjust so that the human index is 50% overall.
+ var exp = Math.log(0.5) / Math.log(data['computer_games'] / data['total_games']);
+ line.push(1.0 - Math.pow(computer / num, exp)); // Hum.
// Win%.
var white_win_ratio = (white + 0.5 * draw) / num;
(pseudogame.turn() === 'b' && piece.search(/^w/) !== -1)) {
return false;
}
+
+ recommended_dest = null;
+ get_best_dest(pseudogame, source, function(dest) {
+ $("#board").find('.square-55d63').removeClass('nonuglyhighlight');
+ if (dest !== null) {
+ var squareEl = $('#board .square-' + dest);
+ squareEl.addClass('highlight1-32417');
+ }
+ recommended_dest = dest;
+ });
+}
+
+var get_best_dest = function(game, source, cb) {
+ var moves = game.moves({ square: source, verbose: true });
+ if (moves.length == 0) {
+ cb(null);
+ return;
+ }
+ if (moves.length == 1) {
+ cb(moves[0].to);
+ return;
+ }
+
+ // More than one move. Ask the engine to disambiguate.
+ var uci_moves = moves.map(function(m) { return m.from + m.to; });
+ var when_engine_is_ready = function() {
+ engine_running = true;
+ stockfish.onmessage = function(event) {
+ var res = event.data.match(/^bestmove \S\S(\S\S)/);
+ if (res !== null) {
+ engine_running = false;
+ if (engine_replacement_callback !== null) {
+ // We are no longer interested in this query,
+ // so just discard it and call this other callback.
+ engine_replacement_callback();
+ engine_replacement_callback = null;
+ } else {
+ cb(res[1]);
+ }
+ }
+ };
+ stockfish.postMessage("position fen " + game.fen());
+ stockfish.postMessage("go depth 6 searchmoves " + uci_moves.join(" "));
+ };
+ if (engine_running) {
+ engine_replacement_callback = when_engine_is_ready;
+ } else {
+ when_engine_is_ready();
+ }
}
var onDrop = function(source, target) {
+ if (engine_running) {
+ // Snap end before the engine came back.
+ // Discard the result when it does.
+ engine_replacement_callback = function() {};
+ }
+ if (source == target) {
+ if (recommended_dest === null) {
+ return 'snapback';
+ } else {
+ // Accept the move. It will be changed in onSnapEnd.
+ return;
+ }
+ } else {
+ // Suggestion not asked for.
+ recommended_dest = null;
+ }
+
// see if the move is legal
var pseudogame = new Chess(current_display_fen());
var move = pseudogame.move({
}
var onSnapEnd = function(source, target) {
+ if (source == target && recommended_dest !== null) {
+ target = recommended_dest;
+ }
+ recommended_dest = null;
var pseudogame = new Chess(current_display_fen());
var move = pseudogame.move({
from: source,