X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=www%2Fjs%2Fremoteglot.js;h=c6595e413356a9531855e9af7b6f71d56f2ecd61;hb=04a09990050cf6f330a15ec2016059e535ef4988;hp=c9b6772cf776952814b80bedf173ca5323965aa2;hpb=a13ff357bb0ecd37f889690e4e019d474b3c0c5c;p=remoteglot diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js index c9b6772..c6595e4 100644 --- a/www/js/remoteglot.js +++ b/www/js/remoteglot.js @@ -7,7 +7,7 @@ * @type {Number} * @const * @private */ -var SCRIPT_VERSION = 2016032201; +var SCRIPT_VERSION = 2021021300; /** * The current backend URL. @@ -47,9 +47,10 @@ var displayed_analysis_data = null; * @type {?Array.<{ * name: string, * url: string, + * hashurl: string, * id: string, - * score: =Object, - * result: =string, + * score: Object=, + * result: string=, * }>} * @private */ @@ -93,9 +94,6 @@ var toplay = 'W'; /** @type {number} @private */ var ims = 0; -/** @type {boolean} @private */ -var sort_refutation_lines_by_score = true; - /** @type {boolean} @private */ var truncate_display_history = true; @@ -106,7 +104,7 @@ var highlight_from = undefined; var highlight_to = undefined; /** The HTML object of the move currently being highlighted (in red). - * @type {?jQuery} + * @type {?Element} * @private */ var highlighted_move = null; @@ -129,6 +127,9 @@ var unique = null; /** @type {boolean} @private */ var enable_sound = false; +/** @type {!number} @private */ +var delay_ms = 0; + /** * Our best estimate of how many milliseconds we need to add to * new Date() to get the true UTC time. Calibrated against the @@ -157,7 +158,7 @@ var display_fen = null; /** @typedef {{ * start_fen: string, - * pretty_pv: Array., + * pv: Array., * move_num: number, * toplay: string, * scores: Array<{first_move: number, score: Object}>, @@ -192,7 +193,7 @@ var current_display_move = null; * The current backend request to get main analysis (not history), if any, * so that we can abort it. * - * @type {?jqXHR} + * @type {?AbortController} * @private */ var current_analysis_xhr = null; @@ -209,7 +210,7 @@ var current_analysis_request_timer = null; /** * The current backend request to get historic data, if any. * - * @type {?jqXHR} + * @type {?AbortController} * @private */ var current_historic_xhr = null; @@ -217,7 +218,7 @@ var current_historic_xhr = null; /** * The current backend request to get hash probes, if any, so that we can abort it. * - * @type {?jqXHR} + * @type {?AbortController} * @private */ var current_hash_xhr = null; @@ -243,12 +244,12 @@ var supports_html5_storage = function() { // Of course, you can never fully protect against people deliberately wanting to spam. var get_unique = function() { var use_local_storage = supports_html5_storage(); - if (use_local_storage && localStorage['unique']) { - return localStorage['unique']; + if (use_local_storage && window['localStorage']['unique']) { + return window['localStorage']['unique']; } var unique = Math.random(); if (use_local_storage) { - localStorage['unique'] = unique; + window['localStorage']['unique'] = unique; } return unique; } @@ -256,42 +257,88 @@ var get_unique = function() { var request_update = function() { current_analysis_request_timer = null; - current_analysis_xhr = $.ajax({ - url: backend_url + "?ims=" + ims + "&unique=" + unique - }).done(function(data, textstatus, xhr) { - sync_server_clock(xhr.getResponseHeader('Date')); - ims = xhr.getResponseHeader('X-RGLM'); - var num_viewers = xhr.getResponseHeader('X-RGNV'); - var new_data; - if (Array.isArray(data)) { - new_data = JSON.parse(JSON.stringify(current_analysis_data)); - JSON_delta.patch(new_data, data); - } else { - new_data = data; - } + let handle_err = () => { + // Backend error or similar. Wait ten seconds, then try again. + current_analysis_request_timer = setTimeout(function() { request_update(); }, 10000); + }; + + current_analysis_xhr = new AbortController(); + const signal = current_analysis_xhr.signal; + fetch(backend_url + "?ims=" + ims + "&unique=" + unique, { signal }) + .then((response) => response.json().then(data => ({ok: response.ok, headers: response.headers, json: data}))) // ick + .then((obj) => { + if (!obj.ok) { + handle_err(); + return; + } + + if (delay_ms === 0) { + process_update_response(obj.json, obj.headers); + } else { + setTimeout(function() { process_update_response(obj.json, obj.headers); }, delay_ms); + } + + // Next update. + if (!backend_url.match(/history/)) { + var timeout = 100; + current_analysis_request_timer = setTimeout(function() { request_update(); }, timeout); + } + }) + .catch((err) => { + if (err.name === 'AbortError') { + // Aborted because we are switching backends. Abandon and don't retry, + // because another one is already started for us. + } else { + console.log(err); + handle_err(err); + } + }) + .finally(() => { + // Display. + document.body.style.opacity = null; + }) + +} + +var process_update_response = function(data, headers) { + sync_server_clock(headers.get('Date')); + ims = headers.get('X-RGLM'); + var num_viewers = headers.get('X-RGNV'); + var new_data; + if (Array.isArray(data)) { + new_data = JSON.parse(JSON.stringify(current_analysis_data)); + JSON_delta.patch(new_data, data); + } else { + new_data = data; + } - var minimum_version = xhr.getResponseHeader('X-RGMV'); - if (minimum_version && minimum_version > SCRIPT_VERSION) { - // Upgrade to latest version with a force-reload. - location.reload(true); + var minimum_version = headers.get('X-RGMV'); + if (minimum_version && minimum_version > SCRIPT_VERSION) { + // Upgrade to latest version with a force-reload. + location.reload(true); + } + + // Verify that the PV makes sense. + var valid = true; + if (new_data['pv']) { + var hiddenboard = new Chess(new_data['position']['fen']); + for (var i = 0; i < new_data['pv'].length; ++i) { + if (hiddenboard.move(new_data['pv'][i]) === null) { + valid = false; + break; + } } + } + if (valid) { possibly_play_sound(current_analysis_data, new_data); current_analysis_data = new_data; update_board(); update_num_viewers(num_viewers); - - // Next update. - current_analysis_request_timer = setTimeout(function() { request_update(); }, 100); - }).fail(function(jqXHR, textStatus, errorThrown) { - if (textStatus === "abort") { - // Aborted because we are switching backends. Abandon and don't retry, - // because another one is already started for us. - } else { - // Backend error or similar. Wait ten seconds, then try again. - current_analysis_request_timer = setTimeout(function() { request_update(); }, 10000); - } - }); + } else { + console.log("Received invalid update, waiting five seconds and trying again."); + setTimeout(function() { location.reload(true); }, 5000); + } } var possibly_play_sound = function(old_data, new_data) { @@ -458,23 +505,29 @@ var position_arrow = function(arrow) { return; } - var pos = $(".square-a8").position(); - - var zoom_factor = $("#board").width() / 400.0; + var zoom_factor = document.getElementById("board").getBoundingClientRect().width / 400.0; var line_width = arrow.line_width * zoom_factor; var arrow_size = arrow.arrow_size * zoom_factor; - var square_width = $(".square-a8").width(); - var from_y = (7 - arrow.from_row + 0.5)*square_width; - var to_y = (7 - arrow.to_row + 0.5)*square_width; - var from_x = (arrow.from_col + 0.5)*square_width; - var to_x = (arrow.to_col + 0.5)*square_width; + var square_width = document.querySelector(".square-a8").getBoundingClientRect().width; + var from_y, to_y, from_x, to_x; + if (board.orientation() === 'black') { + from_y = (arrow.from_row + 0.5)*square_width; + to_y = (arrow.to_row + 0.5)*square_width; + from_x = (7 - arrow.from_col + 0.5)*square_width; + to_x = (7 - arrow.to_col + 0.5)*square_width; + } else { + from_y = (7 - arrow.from_row + 0.5)*square_width; + to_y = (7 - arrow.to_row + 0.5)*square_width; + from_x = (arrow.from_col + 0.5)*square_width; + to_x = (arrow.to_col + 0.5)*square_width; + } var SVG_NS = "http://www.w3.org/2000/svg"; var XHTML_NS = "http://www.w3.org/1999/xhtml"; var svg = document.createElementNS(SVG_NS, "svg"); - svg.setAttribute("width", /** @type{number} */ ($("#board").width())); - svg.setAttribute("height", /** @type{number} */ ($("#board").height())); + svg.setAttribute("width", /** @type{number} */ (document.getElementById("board").getBoundingClientRect().width)); + svg.setAttribute("height", /** @type{number} */ (document.getElementById("board").getBoundingClientRect().height)); svg.setAttribute("style", "position: absolute"); svg.setAttribute("position", "absolute"); svg.setAttribute("version", "1.1"); @@ -517,8 +570,10 @@ var position_arrow = function(arrow) { head.setAttribute("fill", arrow.fg_color); svg.appendChild(head); - $(svg).css({ top: pos.top, left: pos.left, 'pointer-events': 'none' }); - document.body.appendChild(svg); + svg.style.top = '2px'; /* Border for .board-b72b1. */ + svg.style.left = '2px'; + svg.style.pointerEvents = 'none'; + document.getElementById('board').appendChild(svg); arrow.svg = svg; } @@ -550,15 +605,6 @@ var create_arrow = function(from_square, to_square, fg_color, line_width, arrow_ arrows.push(arrow); } -// Note: invert is ignored. -var compare_by_sort_key = function(refutation_lines, invert, a, b) { - var ska = refutation_lines[a]['sort_key']; - var skb = refutation_lines[b]['sort_key']; - if (ska < skb) return -1; - if (ska > skb) return 1; - return 0; -}; - var compare_by_score = function(refutation_lines, invert, a, b) { var sa = compute_score_sort_key(refutation_lines[b]['score'], refutation_lines[b]['depth'], invert); var sb = compute_score_sort_key(refutation_lines[a]['score'], refutation_lines[a]['depth'], invert); @@ -572,8 +618,8 @@ var compare_by_score = function(refutation_lines, invert, a, b) { * @param {!Object} data * @param {number} margin The maximum number of centipawns worse than the * best move can be and still be included. - * @param {boolean} margin Whether black is to play. - * @return {Array.} The UCI representation (e.g. e1g1) of all + * @param {boolean} invert Whether black is to play. + * @return {Array.} The FEN representation (e.g. Ne4) of all * moves, in score order. */ var find_nonstupid_moves = function(data, margin, invert) { @@ -584,8 +630,8 @@ var find_nonstupid_moves = function(data, margin, invert) { var pv_score = undefined; for (var move in data['refutation_lines']) { var line = data['refutation_lines'][move]; - var score = compute_score_sort_key(line['score'], line['depth'], invert); - if (move == data['pv_uci'][0]) { + var score = compute_score_sort_key(line['score'], line['depth'], invert, false); + if (move == data['pv'][0]) { pv_score = score; } if (best_score === undefined || score > best_score) { @@ -606,12 +652,12 @@ var find_nonstupid_moves = function(data, margin, invert) { for (var move in data['refutation_lines']) { var line = data['refutation_lines'][move]; var score = compute_score_sort_key(line['score'], line['depth'], invert); - if (move != data['pv_uci'][0] && best_score - score <= margin) { + if (move != data['pv'][0] && best_score - score <= margin) { moves.push(move); } } moves = moves.sort(function(a, b) { return compare_by_score(data['refutation_lines'], data['position']['toplay'] === 'B', a, b) }); - moves.unshift(data['pv_uci'][0]); + moves.unshift(data['pv'][0]); return moves; } @@ -626,7 +672,7 @@ var thousands = function(x) { /** * @param {!string} start_fen - * @param {Array.} pretty_pv + * @param {Array.} pv * @param {number} move_num * @param {!string} toplay * @param {Array<{ first_move: integer, score: Object }>} scores @@ -634,33 +680,42 @@ var thousands = function(x) { * @param {number=} opt_limit * @param {boolean=} opt_showlast */ -var add_pv = function(start_fen, pretty_pv, move_num, toplay, scores, start_display_move_num, opt_limit, opt_showlast) { +var add_pv = function(start_fen, pv, move_num, toplay, scores, start_display_move_num, opt_limit, opt_showlast) { display_lines.push({ start_fen: start_fen, - pretty_pv: pretty_pv, + pv: pv, move_num: parseInt(move_num), toplay: toplay, scores: scores, start_display_move_num: start_display_move_num }); - return print_pv(display_lines.length - 1, opt_limit, opt_showlast); + var splicepos = null; + if (scores !== null && scores.length >= 1 && + scores[scores.length - 1].score !== undefined && + scores[scores.length - 1].score !== null && + (scores[scores.length - 1].score[0] === 'T' || + scores[scores.length - 1].score[0] === 't')) { + splicepos = scores[scores.length - 1].score[1]; + } + return print_pv(display_lines.length - 1, splicepos, opt_limit, opt_showlast); } /** * @param {number} line_num + * @param {?number} splicepos If non-null, where the tablebase-spliced portion of the TB starts. * @param {number=} opt_limit If set, show at most this number of moves. * @param {boolean=} opt_showlast If limit is set, show the last moves instead of the first ones. */ -var print_pv = function(line_num, opt_limit, opt_showlast) { +var print_pv = function(line_num, splicepos, opt_limit, opt_showlast) { var display_line = display_lines[line_num]; - var pretty_pv = display_line.pretty_pv; + var pv = display_line.pv; var move_num = display_line.move_num; var toplay = display_line.toplay; // Truncate PV at the start if needed. var start_display_move_num = display_line.start_display_move_num; if (start_display_move_num > 0) { - pretty_pv = pretty_pv.slice(start_display_move_num); + pv = pv.slice(start_display_move_num); var to_add = start_display_move_num; if (toplay === 'B') { ++move_num; @@ -672,70 +727,89 @@ var print_pv = function(line_num, opt_limit, opt_showlast) { --to_add; } move_num += to_add / 2; + if (splicepos !== null && splicepos > 0) { + --splicepos; + } } - var pv = ''; + var ret = ''; var i = 0; - if (opt_limit && opt_showlast && pretty_pv.length > opt_limit) { + var in_tb = false; + if (opt_limit && opt_showlast && pv.length > opt_limit) { // Truncate the PV at the beginning (instead of at the end). // We assume here that toplay is 'W'. We also assume that if // opt_showlast is set, then it is the history, and thus, // the UI should be to expand the history. - pv = '(…) '; - i = pretty_pv.length - opt_limit; + ret = '(…) '; + i = pv.length - opt_limit; if (i % 2 == 1) { ++i; } move_num += i / 2; - } else if (toplay == 'B' && pretty_pv.length > 0) { - var move = "" + pretty_pv[0] + ""; - pv = move_num + '. … ' + move; + } else if (toplay == 'B' && pv.length > 0) { + var move = ""; + if (splicepos === 0) { + move += "(TB: "; + in_tb = true; + } + move += "" + pv[0] + ""; + ret = move_num + '. … ' + move; toplay = 'W'; ++i; ++move_num; } - for ( ; i < pretty_pv.length; ++i) { - var move = "" + pretty_pv[i] + ""; + for ( ; i < pv.length; ++i) { + var move = "" + pv[i] + ""; + if (splicepos === i) { + ret += " (TB: "; + in_tb = true; + } if (toplay == 'W') { if (i > opt_limit && !opt_showlast) { - return pv + ' (…)'; + if (in_tb) { + ret += ")"; + } + return ret + ' (…)'; } - if (pv != '') { - pv += ' '; + if (ret != '') { + ret += ' '; } - pv += move_num + '. ' + move; + ret += move_num + '. ' + move; ++move_num; toplay = 'B'; } else { - pv += ' ' + move; + ret += ' ' + move; toplay = 'W'; } } - return pv; + if (in_tb) { + ret += ")"; + } + return ret; } /** Update the highlighted to/from squares on the board. * Based on the global "highlight_from" and "highlight_to" variables. */ var update_board_highlight = function() { - $("#board").find('.square-55d63').removeClass('nonuglyhighlight'); + document.getElementById("board").querySelector('.square-55d63').classList.remove('nonuglyhighlight'); if ((current_display_line === null || current_display_line_is_history) && highlight_from !== undefined && highlight_to !== undefined) { - $("#board").find('.square-' + highlight_from).addClass('nonuglyhighlight'); - $("#board").find('.square-' + highlight_to).addClass('nonuglyhighlight'); + document.getElementById("board").querySelector('.square-' + highlight_from).classList.add('nonuglyhighlight'); + document.getElementById("board").querySelector('.square-' + highlight_to).classList.add('nonuglyhighlight'); } } var update_history = function() { - if (display_lines[0] === null || display_lines[0].pretty_pv.length == 0) { - $("#history").html("No history"); + if (display_lines[0] === null || display_lines[0].pv.length == 0) { + document.getElementById("history").innerHTML = "No history"; } else if (truncate_display_history) { - $("#history").html(print_pv(0, 8, true)); + document.getElementById("history").innerHTML = print_pv(0, null, 8, true); } else { - $("#history").html( + document.getElementById("history").innerHTML = '(collapse) ' + - print_pv(0)); + print_pv(0, null); } } @@ -760,15 +834,19 @@ var update_refutation_lines = function() { // Truncate so that only the history and PV is left. display_lines = [ display_lines[0], display_lines[1] ]; } - var tbl = $("#refutationlines"); - tbl.empty(); + var tbl = document.getElementById("refutationlines"); + tbl.replaceChildren(); + + if (display_lines.length < 2) { + return; + } // Find out where the lines start from. var base_line = []; - var base_scores = []; + var base_scores = display_lines[1].scores; var start_display_move_num = 0; if (hash_refutation_lines) { - base_line = current_display_line.pretty_pv.slice(0, current_display_move + 1); + base_line = current_display_line.pv.slice(0, current_display_move + 1); base_scores = current_display_line.scores; start_display_move_num = base_line.length; } @@ -779,11 +857,10 @@ var update_refutation_lines = function() { } var invert = (toplay === 'B'); - if (current_display_line && current_display_move % 2 == 0) { + if (current_display_line && current_display_move % 2 == 0 && !current_display_line_is_history) { invert = !invert; } - var compare = sort_refutation_lines_by_score ? compare_by_score : compare_by_sort_key; - moves = moves.sort(function(a, b) { return compare(refutation_lines, invert, a, b) }); + moves = moves.sort(function(a, b) { return compare_by_score(refutation_lines, invert, a, b) }); for (var i = 0; i < moves.length; ++i) { var line = refutation_lines[moves[i]]; @@ -791,68 +868,59 @@ var update_refutation_lines = function() { var move_td = document.createElement("td"); tr.appendChild(move_td); - $(move_td).addClass("move"); + move_td.classList.add("move"); var scores = base_scores.concat([{ first_move: start_display_move_num, score: line['score'] }]); - if (line['pv_pretty'].length == 0) { + if (line['pv'].length == 0) { // Not found, so just make a one-move PV. - var move = "" + line['pretty_move'] + ""; - $(move_td).html(move); + var move = "" + line['move'] + ""; + move_td.innerHTML = move; var score_td = document.createElement("td"); - $(score_td).addClass("score"); - $(score_td).text("—"); + score_td.classList.add("score"); + score_td.textContent = "—"; tr.appendChild(score_td); var depth_td = document.createElement("td"); tr.appendChild(depth_td); - $(depth_td).addClass("depth"); - $(depth_td).text("—"); + depth_td.classList.add("depth"); + depth_td.textContent = "—"; var pv_td = document.createElement("td"); tr.appendChild(pv_td); - $(pv_td).addClass("pv"); - $(pv_td).html(add_pv(base_fen, base_line.concat([ line['pretty_move'] ]), move_num, toplay, scores, start_display_move_num)); + pv_td.classList.add("pv"); + pv_td.innerHTML = add_pv(base_fen, base_line.concat([ line['move'] ]), move_num, toplay, scores, start_display_move_num); tbl.append(tr); continue; } - var move = "" + line['pretty_move'] + ""; - $(move_td).html(move); + var move = "" + line['move'] + ""; + move_td.innerHTML = move; var score_td = document.createElement("td"); tr.appendChild(score_td); - $(score_td).addClass("score"); - $(score_td).text(format_short_score(line['score'])); + score_td.classList.add("score"); + score_td.textContent = format_short_score(line['score']); var depth_td = document.createElement("td"); tr.appendChild(depth_td); - $(depth_td).addClass("depth"); + depth_td.classList.add("depth"); if (line['depth'] && line['depth'] >= 0) { - $(depth_td).text("d" + line['depth']); + depth_td.textContent = "d" + line['depth']; } else { - $(depth_td).text("—"); + depth_td.textContent = "—"; } var pv_td = document.createElement("td"); tr.appendChild(pv_td); - $(pv_td).addClass("pv"); - $(pv_td).html(add_pv(base_fen, base_line.concat(line['pv_pretty']), move_num, toplay, scores, start_display_move_num, 10)); + pv_td.classList.add("pv"); + pv_td.innerHTML = add_pv(base_fen, base_line.concat(line['pv']), move_num, toplay, scores, start_display_move_num, 10); tbl.append(tr); } - // Make one of the links clickable and the other nonclickable. - if (sort_refutation_lines_by_score) { - $("#sortbyscore0").html("Move"); - $("#sortbyscore1").html("Score"); - } else { - $("#sortbyscore0").html("Move"); - $("#sortbyscore1").html("Score"); - } - // Update the move highlight, as we've rewritten all the HTML. update_move_highlight(); } @@ -867,7 +935,7 @@ var update_refutation_lines = function() { */ var chess_from = function(fen, moves, last_move) { var hiddenboard = new Chess(); - if (fen !== null) { + if (fen !== null && fen !== undefined) { hiddenboard.load(fen); } for (var i = 0; i <= last_move; ++i) { @@ -883,7 +951,7 @@ var chess_from = function(fen, moves, last_move) { } var update_game_list = function(games) { - $("#games").text(""); + document.getElementById("games").textContent = ""; if (games === null) { return; } @@ -899,13 +967,15 @@ var update_game_list = function(games) { // This game. game_span.appendChild(game_name); - var score; - if (current_analysis_data['position']['result']) { - score = " (" + current_analysis_data['position']['result'] + ")"; - } else { - score = " (" + format_short_score(current_analysis_data['score']) + ")"; + if (current_analysis_data && current_analysis_data['position']) { + var score; + if (current_analysis_data['position']['result']) { + score = " (" + current_analysis_data['position']['result'] + ")"; + } else { + score = " (" + format_short_score(current_analysis_data['score']) + ")"; + } + game_span.appendChild(document.createTextNode(score)); } - game_span.appendChild(document.createTextNode(score)); } else { // Some other game. var game_a = document.createElement("a"); @@ -931,6 +1001,18 @@ var update_game_list = function(games) { * and switch to it if we're not already displaying it. */ var possibly_switch_game_from_hash = function() { + var history_match = window.location.hash.match(/^#history=([a-zA-Z0-9_-]+)/); + if (history_match !== null) { + var game_id = history_match[1]; + var fake_game = { + url: '/history/' + game_id + '.json', + hashurl: '', + id: 'history=' + game_id + }; + switch_backend(fake_game); + return; + } + if (current_games === null) { return; } @@ -939,16 +1021,44 @@ var possibly_switch_game_from_hash = function() { for (var i = 0; i < current_games.length; ++i) { if (current_games[i]['id'] === hash) { if (backend_url !== current_games[i]['url']) { - switch_backend(current_games[i]['url'], current_games[i]['hashurl']); + switch_backend(current_games[i]); } return; } } } +/** + * If this is a Chess960 castling which doesn't move the king, + * move the rook instead. +*/ +var patch_move = function(move) { + if (move === null) return null; + if (move.from !== move.to) return move; + + var f = move.rook_sq & 15; + var r = move.rook_sq >> 4; + var from = ('abcdefgh'.substring(f,f+1) + '87654321'.substring(r,r+1)); + var to = move.to; + + if (move.to === 'g1') { + to = 'f1'; + } else if (move.to === 'g8') { + to = 'f8'; + } else if (move.to === 'b1') { + to = 'c1'; + } else if (move.to === 'b8') { + to = 'c8'; + } + + return { from: from, to: to }; +} + /** Update all the HTML on the page, based on current global state. */ var update_board = function() { + document.body.style.opacity = null; + var data = displayed_analysis_data || current_analysis_data; var current_data = current_analysis_data; // Convenience alias. @@ -957,8 +1067,9 @@ var update_board = function() { // Print the history. This is pretty much the only thing that's // unconditionally taken from current_data (we're not interested in // historic history). - if (current_data['position']['pretty_history']) { - add_pv('start', current_data['position']['pretty_history'], 1, 'W', null, 0, 8, true); + if (current_data['position']['history']) { + var start = (current_data['position'] && current_data['position']['start_fen']) ? current_data['position']['start_fen'] : 'start'; + add_pv(start, current_data['position']['history'], 1, 'W', null, 0, 8, true); } else { display_lines.push(null); } @@ -988,33 +1099,33 @@ var update_board = function() { // when e.g. viewing history, so if any of these changed during the game, // use the current one still. if (current_data['using_lomonosov']) { - $("#lomonosov").show(); + document.getElementById("lomonosov").style.display = null; } else { - $("#lomonosov").hide(); + document.getElementById("lomonosov").style.display = 'none'; } // Credits: The engine name/version. if (current_data['engine'] && current_data['engine']['name'] !== null) { - $("#engineid").text(current_data['engine']['name']); + document.getElementById("engineid").textContent = current_data['engine']['name']; } // Credits: The engine URL. if (current_data['engine'] && current_data['engine']['url']) { - $("#engineid").attr("href", current_data['engine']['url']); + document.getElementById("engineid").setAttribute("href", current_data['engine']['url']); } else { - $("#engineid").removeAttr("href"); + document.getElementById("engineid").removeAttribute("href"); } // Credits: Engine details. if (current_data['engine'] && current_data['engine']['details']) { - $("#enginedetails").text(" (" + current_data['engine']['details'] + ")"); + document.getElementById("enginedetails").textContent = " (" + current_data['engine']['details'] + ")"; } else { - $("#enginedetails").text(""); + document.getElementById("enginedetails").textContent = ""; } // Credits: Move source, possibly with URL. if (current_data['move_source'] && current_data['move_source_url']) { - $("#movesource").text("Moves provided by "); + document.getElementById("movesource").textContent = "Moves provided by "; var movesource_a = document.createElement("a"); movesource_a.setAttribute("href", current_data['move_source_url']); var movesource_text = document.createTextNode(current_data['move_source']); @@ -1023,29 +1134,41 @@ var update_board = function() { document.getElementById("movesource").appendChild(movesource_a); document.getElementById("movesource").appendChild(movesource_period); } else if (current_data['move_source']) { - $("#movesource").text("Moves provided by " + current_data['move_source'] + "."); + document.getElementById("movesource").textContent = "Moves provided by " + current_data['move_source'] + "."; } else { - $("#movesource").text(""); + document.getElementById("movesource").textContent = ""; } var last_move; if (displayed_analysis_data) { // Displaying some non-current position, pick out the last move // from the history. This will work even if the fetch failed. - last_move = format_halfmove_with_number( - current_display_line.pretty_pv[current_display_move], - current_display_move + 1); - headline += ' after ' + last_move; + if (current_display_move !== -1) { + last_move = format_halfmove_with_number( + current_display_line.pv[current_display_move], + current_display_move); + headline += ' after ' + last_move; + } } else if (data['position']['last_move'] !== 'none') { + // Find the previous move. + var previous_move_num, previous_toplay; + if (data['position']['toplay'] == 'B') { + previous_move_num = data['position']['move_num']; + previous_toplay = 'W'; + } else { + previous_move_num = data['position']['move_num'] - 1; + previous_toplay = 'B'; + } + last_move = format_move_with_number( data['position']['last_move'], - data['position']['move_num'], - data['position']['toplay'] == 'W'); + previous_move_num, + previous_toplay == 'W'); headline += ' after ' + last_move; } else { last_move = null; } - $("#headline").text(headline); + document.getElementById("headline").textContent = headline; // The contains a very brief headline. var title_elems = []; @@ -1068,13 +1191,14 @@ var update_board = function() { if (data['position'] && data['position']['last_move_uci']) { highlight_from = data['position']['last_move_uci'].substr(0, 2); highlight_to = data['position']['last_move_uci'].substr(2, 2); - } else if (current_display_line_is_history && current_display_move >= 0) { + } else if (current_display_line_is_history && current_display_line && current_display_move >= 0) { // We don't have historic analysis for this position, but we // can reconstruct what the last move was by just replaying // from the start. - var hiddenboard = chess_from(null, current_display_line.pretty_pv, current_display_move); + var position = (data['position'] && data['position']['start_fen']) ? data['position']['start_fen'] : null; + var hiddenboard = chess_from(position, current_display_line.pv, current_display_move); var moves = hiddenboard.history({ verbose: true }); - var last_move = moves.pop(); + last_move = moves.pop(); highlight_from = last_move.from; highlight_to = last_move.to; } else { @@ -1083,13 +1207,13 @@ var update_board = function() { update_board_highlight(); if (data['failed']) { - $("#score").text("No analysis for this move"); - $("#pvtitle").text("PV:"); - $("#pv").empty(); - $("#searchstats").html(" "); - $("#refutationlines").empty(); - $("#whiteclock").empty(); - $("#blackclock").empty(); + document.getElementById("score").textContent = "No analysis for this move"; + document.getElementById("pvtitle").textContent = "PV:"; + document.getElementById("pv").replaceChildren(); + document.getElementById("searchstats").innerHTML = " "; + document.getElementById("refutationlines").replaceChildren(); + document.getElementById("whiteclock").replaceChildren(); + document.getElementById("blackclock").replaceChildren(); refutation_lines = []; update_refutation_lines(); clear_arrows(); @@ -1102,27 +1226,29 @@ var update_board = function() { // The score. if (current_display_line && !current_display_line_is_history) { + var score; if (current_display_line.scores && current_display_line.scores.length > 0) { - var score; for (var i = 0; i < current_display_line.scores.length; ++i) { if (current_display_move < current_display_line.scores[i].first_move) { break; } score = current_display_line.scores[i].score; } - $("#score").text(format_long_score(score)); + } + if (score) { + document.getElementById("score").textContent = format_long_score(score); } else { - $("#score").text("No score for this move"); + document.getElementById("score").textContent = "No score for this line"; } } else if (data['score']) { - $("#score").text(format_long_score(data['score'])); + document.getElementById("score").textContent = format_long_score(data['score']); } // The search stats. if (data['searchstats']) { - $("#searchstats").html(data['searchstats']); + document.getElementById("searchstats").innerHTML = data['searchstats']; } else if (data['tablebase'] == 1) { - $("#searchstats").text("Tablebase result"); + document.getElementById("searchstats").textContent = "Tablebase result"; } else if (data['nodes'] && data['nps'] && data['depth']) { var stats = thousands(data['nodes']) + ' nodes, ' + thousands(data['nps']) + ' nodes/sec, depth ' + data['depth'] + ' ply'; if (data['seldepth']) { @@ -1136,9 +1262,9 @@ var update_board = function() { } } - $("#searchstats").text(stats); + document.getElementById("searchstats").textContent = stats; } else { - $("#searchstats").text(""); + document.getElementById("searchstats").textContent = ""; } // Update the board itself. @@ -1146,51 +1272,72 @@ var update_board = function() { update_displayed_line(); // Print the PV. - $("#pvtitle").text("PV:"); + document.getElementById("pvtitle").textContent = "PV:"; - var scores = [{ first_move: 0, score: data['score'] }]; - $("#pv").html(add_pv(data['position']['fen'], data['pv_pretty'], data['position']['move_num'], data['position']['toplay'], scores, 0)); + var scores = [{ first_move: -1, score: data['score'] }]; + document.getElementById("pv").innerHTML = add_pv(data['position']['fen'], data['pv'], data['position']['move_num'], data['position']['toplay'], scores, 0); // Update the PV arrow. clear_arrows(); - if (data['pv_uci'].length >= 1) { + if (data['pv'].length >= 1) { + var hiddenboard = new Chess(base_fen); + // draw a continuation arrow as long as it's the same piece - for (var i = 0; i < data['pv_uci'].length; i += 2) { - var from = data['pv_uci'][i].substr(0, 2); - var to = data['pv_uci'][i].substr(2,4); - if ((i >= 2 && from != data['pv_uci'][i - 2].substr(2, 2)) || - interfering_arrow(from, to)) { + var last_to; + for (var i = 0; i < data['pv'].length; i += 2) { + var move = patch_move(hiddenboard.move(data['pv'][i])); + + if ((i >= 2 && move.from != last_to) || + interfering_arrow(move.from, move.to)) { break; } - create_arrow(from, to, '#f66', 6, 20); + create_arrow(move.from, move.to, '#f66', 6, 20); + last_to = move.to; + hiddenboard.move(data['pv'][i + 1]); // To keep continuity. } var alt_moves = find_nonstupid_moves(data, 30, data['position']['toplay'] === 'B'); for (var i = 1; i < alt_moves.length && i < 3; ++i) { - create_arrow(alt_moves[i].substr(0, 2), - alt_moves[i].substr(2, 2), '#f66', 1, 10); + hiddenboard = new Chess(base_fen); + var move = patch_move(hiddenboard.move(alt_moves[i])); + if (move !== null) { + create_arrow(move.from, move.to, '#f66', 1, 10); + } } } // See if all semi-reasonable moves have only one possible response. - if (data['pv_uci'].length >= 2) { + if (data['pv'].length >= 2) { var nonstupid_moves = find_nonstupid_moves(data, 300, data['position']['toplay'] === 'B'); - var response = data['pv_uci'][1]; + var response; + { + var hiddenboard = new Chess(base_fen); + hiddenboard.move(data['pv'][0]); + response = hiddenboard.move(data['pv'][1]); + } for (var i = 0; i < nonstupid_moves.length; ++i) { - if (nonstupid_moves[i] == data['pv_uci'][0]) { + if (nonstupid_moves[i] == data['pv'][0]) { // ignore the PV move for refutation lines. continue; } if (!data['refutation_lines'] || !data['refutation_lines'][nonstupid_moves[i]] || - !data['refutation_lines'][nonstupid_moves[i]]['pv_uci'] || - data['refutation_lines'][nonstupid_moves[i]]['pv_uci'].length < 1) { + !data['refutation_lines'][nonstupid_moves[i]]['pv'] || + data['refutation_lines'][nonstupid_moves[i]]['pv'].length < 2) { // Incomplete PV, abort. response = undefined; break; } - var this_response = data['refutation_lines'][nonstupid_moves[i]]['pv_uci'][1]; - if (response !== this_response) { + var line = data['refutation_lines'][nonstupid_moves[i]]; + hiddenboard = new Chess(base_fen); + hiddenboard.move(line['pv'][0]); + var this_response = hiddenboard.move(line['pv'][1]); + if (this_response === null) { + console.log("BUG: ", i); + console.log(data); + console.log(line['pv']); + } + if (response.from !== this_response.from || response.to !== this_response.to) { // Different response depending on lines, abort. response = undefined; break; @@ -1198,8 +1345,7 @@ var update_board = function() { } if (nonstupid_moves.length > 0 && response !== undefined) { - create_arrow(response.substr(0, 2), - response.substr(2, 2), '#66f', 6, 20); + create_arrow(response.from, response.to, '#66f', 6, 20); } } @@ -1215,6 +1361,8 @@ var update_board = function() { } var update_sparkline = function(data) { + let scorespark = document.getElementById('scoresparkcontainer'); + scorespark.textContent = ''; if (data && data['score_history']) { var first_move_num = undefined; for (var halfmove_num in data['score_history']) { @@ -1230,17 +1378,13 @@ var update_sparkline = function(data) { } // Possibly truncate some moves if we don't have enough width. - // FIXME: Sometimes width() for #scorecontainer (and by extent, - // #scoresparkcontainer) on Chrome for mobile seems to start off - // at something very small, and then suddenly snap back into place. - // Figure out why. - var max_moves = Math.floor($("#scoresparkcontainer").width() / 5) - 5; + var max_moves = Math.floor(scorespark.getBoundingClientRect().width / 5) - 3; if (last_move_num - first_move_num > max_moves) { first_move_num = last_move_num - max_moves; } - var min_score = -100; - var max_score = 100; + var min_score = -1; + var max_score = 1; var last_score = null; var scores = []; for (var halfmove_num = first_move_num; halfmove_num <= last_move_num; ++halfmove_num) { @@ -1255,70 +1399,132 @@ var update_sparkline = function(data) { if (data['score']) { scores.push(compute_plot_score(data['score'])); } - // FIXME: at some widths, calling sparkline() seems to push - // #scorecontainer under the board. - $("#scorespark").sparkline(scores, { - type: 'bar', - zeroColor: 'gray', - chartRangeMin: min_score, - chartRangeMax: max_score, - tooltipFormatter: function(sparkline, options, fields) { - return format_tooltip(data, fields[0].offset + first_move_num); + + const h = scorespark.getBoundingClientRect().height; + + let base_y = h - h * min_score / (min_score - max_score); + for (let i = 0; i < scores.length; ++i) { + let rect = document.createElementNS('http://www.w3.org/2000/svg', 'rect'); + //rect.setAttributeNS(null, 'stroke', "#000000"); + rect.setAttributeNS(null, 'x', i * 5) + rect.setAttributeNS(null, 'width', 4); + let extent = scores[i] * h / (max_score - min_score); + if (extent > 0 && extent < 1) { + extent = 1; + } else if (extent < 0 && extent > -1) { + extent = -1; } - }); - } else { - $("#scorespark").text(""); + + let color; + if (scores[i] === 0) { + color = [0.5, 0.5, 0.5]; + rect.setAttributeNS(null, 'y', base_y - 1); + rect.setAttributeNS(null, 'height', 1); + } else if (scores[i] > 0) { + color = [0.2, 0.4, 0.8]; + rect.setAttributeNS(null, 'y', base_y - extent); + rect.setAttributeNS(null, 'height', extent); + } else { + color = [1.0, 0.267, 0.267]; + rect.setAttributeNS(null, 'y', base_y); + rect.setAttributeNS(null, 'height', -extent); + } + let hlcolor = [color[0], color[1], color[2]]; + if (scores[i] !== 0) { + hlcolor[0] = Math.min(hlcolor[0] * 1.4, 1.0); + hlcolor[1] = Math.min(hlcolor[1] * 1.4, 1.0); + hlcolor[2] = Math.min(hlcolor[2] * 1.4, 1.0); + } + rect.style.fill = 'rgb(' + color[0]*100.0 + '%, ' + color[1]*100.0 + '%, ' + color[2]*100.0 + '%)'; + + // score_history contains the Nth _position_, but format_tooltip + // wants to format the Nth _move_; thus the -1. + const tooltip = format_tooltip(data, i + first_move_num - 1); + rect.addEventListener('mouseenter', (e) => draw_hover(e, hlcolor, tooltip)); + rect.addEventListener('mousemove', (e) => draw_hover(e, hlcolor, tooltip)); + rect.addEventListener('mouseleave', (e) => hide_hover(e, color)); + rect.addEventListener('click', (e) => show_line(0, i + first_move_num - 1)); + scorespark.appendChild(rect); + } } - } else { - $("#scorespark").text(""); } } +var draw_hover = function(e, color, tooltip) { + e.target.style.fill = 'rgb(' + color[0]*100.0 + '%, ' + color[1]*100.0 + '%, ' + color[2]*100.0 + '%)'; + + let hover = document.getElementById('sparklinehover'); + hover.textContent = tooltip; + hover.style.display = 'initial'; + + let left = Math.max(e.pageX + 10, window.pageXOffset); + let top = Math.max(e.pageY - hover.getBoundingClientRect().height, window.pageYOffset); + left = Math.min(left, window.pageXOffset + document.documentElement.clientWidth - hover.getBoundingClientRect().width); + + hover.style.left = left + 'px'; + hover.style.top = top + 'px'; + +} +var hide_hover = function(e, color) { + e.target.style.fill = 'rgb(' + color[0]*100.0 + '%, ' + color[1]*100.0 + '%, ' + color[2]*100.0 + '%)'; + document.getElementById('sparklinehover').style.display = 'none'; +} + /** * @param {number} num_viewers */ var update_num_viewers = function(num_viewers) { + var text = ""; if (num_viewers === null) { - $("#numviewers").text(""); + text = ""; } else if (num_viewers == 1) { - $("#numviewers").text("You are the only current viewer"); + text = "You are the only current viewer"; } else { - $("#numviewers").text(num_viewers + " current viewers"); + text = num_viewers + " current viewers"; + } + if (display_fen !== null) { + var counter = Math.floor(display_fen.split(" ")[4] / 2); + if (counter >= 20) { + text = text.replace("current ", ""); + text += " | 50-move rule: " + counter; + } } + document.getElementById("numviewers").textContent = text; } var update_clock = function() { clearTimeout(clock_timer); var data = displayed_analysis_data || current_analysis_data; + if (!data) return; + if (data['position']) { var result = data['position']['result']; if (result === '1-0') { - $("#whiteclock").text("1"); - $("#blackclock").text("0"); - $("#whiteclock").removeClass("running-clock"); - $("#blackclock").removeClass("running-clock"); + document.getElementById("whiteclock").textContent = "1"; + document.getElementById("blackclock").textContent = "0"; + document.getElementById("whiteclock").classList.remove("running-clock"); + document.getElementById("blackclock").classList.remove("running-clock"); return; } if (result === '1/2-1/2') { - $("#whiteclock").text("1/2"); - $("#blackclock").text("1/2"); - $("#whiteclock").removeClass("running-clock"); - $("#blackclock").removeClass("running-clock"); + document.getElementById("whiteclock").textContent = "1/2"; + document.getElementById("blackclock").textContent = "1/2"; + document.getElementById("whiteclock").classList.remove("running-clock"); + document.getElementById("blackclock").classList.remove("running-clock"); return; } if (result === '0-1') { - $("#whiteclock").text("0"); - $("#blackclock").text("1"); - $("#whiteclock").removeClass("running-clock"); - $("#blackclock").removeClass("running-clock"); + document.getElementById("whiteclock").textContent = "0"; + document.getElementById("blackclock").textContent = "1"; + document.getElementById("whiteclock").classList.remove("running-clock"); + document.getElementById("blackclock").classList.remove("running-clock"); return; } } var white_clock_ms = null; var black_clock_ms = null; - var show_seconds = false; // Static clocks. if (data['position'] && @@ -1332,15 +1538,15 @@ var update_clock = function() { var color; if (data['position']['white_clock_target']) { color = "white"; - $("#whiteclock").addClass("running-clock"); - $("#blackclock").removeClass("running-clock"); + document.getElementById("whiteclock").classList.add("running-clock"); + document.getElementById("blackclock").classList.remove("running-clock"); } else if (data['position']['black_clock_target']) { color = "black"; - $("#whiteclock").removeClass("running-clock"); - $("#blackclock").addClass("running-clock"); + document.getElementById("whiteclock").classList.remove("running-clock"); + document.getElementById("blackclock").classList.add("running-clock"); } else { - $("#whiteclock").removeClass("running-clock"); - $("#blackclock").removeClass("running-clock"); + document.getElementById("whiteclock").classList.remove("running-clock"); + document.getElementById("blackclock").classList.remove("running-clock"); } var remaining_ms; if (color) { @@ -1354,13 +1560,14 @@ var update_clock = function() { } if (white_clock_ms === null || black_clock_ms === null) { - $("#whiteclock").empty(); - $("#blackclock").empty(); + document.getElementById("whiteclock").replaceChildren(); + document.getElementById("blackclock").replaceChildren(); return; } - // If either player has ten minutes or less left, add the second counters. - var show_seconds = (white_clock_ms < 60 * 10 * 1000 || black_clock_ms < 60 * 10 * 1000); + // If either player has twenty minutes or less left, add the second counters. + // This matches what DGT clocks do. + var show_seconds = (white_clock_ms < 60 * 20 * 1000 || black_clock_ms < 60 * 20 * 1000); if (color) { // See when the clock will change next, and update right after that. @@ -1373,8 +1580,8 @@ var update_clock = function() { clock_timer = setTimeout(update_clock, next_update_ms); } - $("#whiteclock").text(format_clock(white_clock_ms, show_seconds)); - $("#blackclock").text(format_clock(black_clock_ms, show_seconds)); + document.getElementById("whiteclock").textContent = format_clock(white_clock_ms, show_seconds); + document.getElementById("blackclock").textContent = format_clock(black_clock_ms, show_seconds); } /** @@ -1416,15 +1623,15 @@ var format_2d = function(x) { /** * @param {string} move - * @param {Number} move_num - * @param {boolean} white_to_play + * @param {Number} move_num Move number of this move. + * @param {boolean} white_to_play Whether white is to play this move. */ var format_move_with_number = function(move, move_num, white_to_play) { var ret; if (white_to_play) { - ret = (move_num - 1) + '… '; - } else { ret = move_num + '. '; + } else { + ret = move_num + '… '; } ret += move; return ret; @@ -1432,7 +1639,8 @@ var format_move_with_number = function(move, move_num, white_to_play) { /** * @param {string} move - * @param {Number} halfmove_num + * @param {Number} halfmove_num Half-move number that is to be played, + * starting from 0. */ var format_halfmove_with_number = function(move, halfmove_num) { return format_move_with_number( @@ -1446,42 +1654,39 @@ var format_halfmove_with_number = function(move, halfmove_num) { * @param {Number} halfmove_num */ var format_tooltip = function(data, halfmove_num) { - if (data['score_history'][halfmove_num] || - halfmove_num === data['position']['pretty_history'].length) { + if (data['score_history'][halfmove_num + 1] || + (halfmove_num + 1) === data['position']['history'].length) { + // Position is in the history, or it is the current position + // (which is implicitly tacked onto the history). var move; var short_score; - if (halfmove_num === data['position']['pretty_history'].length) { + if ((halfmove_num + 1) === data['position']['history'].length) { move = data['position']['last_move']; short_score = format_short_score(data['score']); } else { - move = data['position']['pretty_history'][halfmove_num]; - short_score = format_short_score(data['score_history'][halfmove_num]); + move = data['position']['history'][halfmove_num]; + short_score = format_short_score(data['score_history'][halfmove_num + 1]); + } + if (halfmove_num === -1) { + return "Start position: " + short_score; + } else { + var move_with_number = format_halfmove_with_number(move, halfmove_num); + return "After " + move_with_number + ": " + short_score; } - var move_with_number = format_halfmove_with_number(move, halfmove_num); - - return "After " + move_with_number + ": " + short_score; } else { - for (var i = halfmove_num; i --> 0; ) { + for (var i = halfmove_num; i --> -1; ) { if (data['score_history'][i]) { - var move = data['position']['pretty_history'][i]; - return "[Analysis kept from " + format_halfmove_with_number(move, i) + "]"; + var move = data['position']['history'][i]; + if (i === -1) { + return "[Analysis kept from start position]"; + } else { + return "[Analysis kept from " + format_halfmove_with_number(move, i) + "]"; + } } } } } -/** - * @param {boolean} sort_by_score - */ -var resort_refutation_lines = function(sort_by_score) { - sort_refutation_lines_by_score = sort_by_score; - if (supports_html5_storage()) { - localStorage['sort_refutation_lines_by_score'] = sort_by_score ? 1 : 0; - } - update_refutation_lines(); -} -window['resort_refutation_lines'] = resort_refutation_lines; - /** * @param {boolean} truncate_history */ @@ -1508,7 +1713,7 @@ var show_line = function(line_num, move_num) { update_board(); return; } else { - current_display_line = jQuery.extend({}, display_lines[line_num]); // Shallow clone. + current_display_line = {...display_lines[line_num]}; // Shallow clone. current_display_move = move_num + current_display_line.start_display_move_num; } current_display_line_is_history = (line_num == 0); @@ -1534,7 +1739,7 @@ window['prev_move'] = prev_move; var next_move = function() { if (current_display_line && - current_display_move < current_display_line.pretty_pv.length - 1) { + current_display_move < current_display_line.pv.length - 1) { ++current_display_move; } update_historic_analysis(); @@ -1553,7 +1758,7 @@ var next_game = function() { var game = current_games[game_num]; if (game['url'] === backend_url) { var next_game_num = (game_num + 1) % current_games.length; - switch_backend(current_games[next_game_num]['url'], current_games[next_game_num]['hashurl']); + switch_backend(current_games[next_game_num]); return; } } @@ -1565,30 +1770,42 @@ var update_historic_analysis = function() { if (!current_display_line_is_history) { return; } - if (current_display_move == current_display_line.pretty_pv.length - 1) { + if (current_display_move == current_display_line.pv.length - 1) { displayed_analysis_data = null; update_board(); } // Fetch old analysis for this line if it exists. - var hiddenboard = chess_from(null, current_display_line.pretty_pv, current_display_move); + var hiddenboard = chess_from(current_display_line.start_fen, current_display_line.pv, current_display_move); var filename = "/history/move" + (current_display_move + 1) + "-" + hiddenboard.fen().replace(/ /g, '_').replace(/\//g, '-') + ".json"; - current_historic_xhr = $.ajax({ - url: filename - }).done(function(data, textstatus, xhr) { - displayed_analysis_data = data; + let handle_err = () => { + displayed_analysis_data = {'failed': true}; update_board(); - }).fail(function(jqXHR, textStatus, errorThrown) { - if (textStatus === "abort") { - // Aborted because we are switching backends. Don't do anything; - // we will already have been cleared. - } else { - displayed_analysis_data = {'failed': true}; + }; + + current_historic_xhr = new AbortController(); + const signal = current_analysis_xhr.signal; + fetch(filename, { signal }) + .then((response) => response.json().then(data => ({ok: response.ok, json: data}))) // ick + .then((obj) => { + if (!obj.ok) { + handle_err(); + return; + } + displayed_analysis_data = obj.json; update_board(); - } - }); + }) + .catch((err) => { + if (err.name === 'AbortError') { + // Aborted because we are switching backends. Abandon and don't retry, + // because another one is already started for us. + } else { + console.log(err); + handle_err(); + } + }); } /** @@ -1616,14 +1833,16 @@ var update_imbalance = function(fen) { var black_imbalance = ''; for (var piece in imbalance) { for (var i = 0; i < imbalance[piece]; ++i) { - white_imbalance += '<img src="img/chesspieces/wikipedia/w' + piece.toUpperCase() + '.png" alt="" style="width: 15px;height: 15px;">'; + white_imbalance += '<img src="' + svg_pieces['w' + piece.toUpperCase()] + '" alt="" style="width: 15px;height: 15px;" class="imbalance-piece">'; + white_imbalance += '<img src="' + svg_pieces['b' + piece.toUpperCase()] + '" alt="" style="width: 15px;height: 15px;" class="imbalance-inverted-piece">'; } for (var i = 0; i < -imbalance[piece]; ++i) { - black_imbalance += '<img src="img/chesspieces/wikipedia/b' + piece.toUpperCase() + '.png" alt="" style="width: 15px;height: 15px;">'; + black_imbalance += '<img src="' + svg_pieces['b' + piece.toUpperCase()] + '" alt="" style="width: 15px;height: 15px;" class="imbalance-piece">'; + black_imbalance += '<img src="' + svg_pieces['w' + piece.toUpperCase()] + '" alt="" style="width: 15px;height: 15px;" class="imbalance-inverted-piece">'; } } - $('#whiteimbalance').html(white_imbalance); - $('#blackimbalance').html(black_imbalance); + document.getElementById('whiteimbalance').innerHTML = white_imbalance; + document.getElementById('blackimbalance').innerHTML = black_imbalance; } /** Mark the currently selected move in red. @@ -1632,21 +1851,26 @@ var update_imbalance = function(fen) { */ var update_move_highlight = function() { if (highlighted_move !== null) { - highlighted_move.removeClass('highlight'); + highlighted_move.classList.remove('highlight'); } if (current_display_line) { var display_line_num = find_display_line_matching_num(); if (display_line_num === null) { // Replace the PV with the (complete) line. - $("#pvtitle").text("Exploring:"); + document.getElementById("pvtitle").textContent = "Exploring:"; current_display_line.start_display_move_num = 0; display_lines.push(current_display_line); - $("#pv").html(print_pv(display_lines.length - 1)); + document.getElementById("pv").innerHTML = print_pv(display_lines.length - 1, null); // FIXME display_line_num = display_lines.length - 1; + + // Clear out the PV, so it's not selected by anything later. + display_lines[1].pv = []; } - highlighted_move = $("#automove" + display_line_num + "-" + (current_display_move - current_display_line.start_display_move_num)); - highlighted_move.addClass('highlight'); + highlighted_move = document.getElementById("automove" + display_line_num + "-" + (current_display_move - current_display_line.start_display_move_num)); + if (highlighted_move !== null) { + highlighted_move.classList.add('highlight'); + } } } @@ -1662,10 +1886,10 @@ var find_display_line_matching_num = function() { var line = display_lines[i]; if (line.start_display_move_num > 0) continue; if (current_display_line.start_fen !== line.start_fen) continue; - if (current_display_line.pretty_pv.length !== line.pretty_pv.length) continue; + if (current_display_line.pv.length !== line.pv.length) continue; var ok = true; - for (var j = 0; j < line.pretty_pv.length; ++j) { - if (current_display_line.pretty_pv[j] !== line.pretty_pv[j]) { + for (var j = 0; j < line.pv.length; ++j) { + if (current_display_line.pv[j] !== line.pv[j]) { ok = false; break; } @@ -1677,43 +1901,53 @@ var find_display_line_matching_num = function() { return null; } +/** Update the board based on the currently displayed line. + * + * TODO: This should really be called only whenever something changes, + * instead of all the time. + */ var update_displayed_line = function() { if (current_display_line === null) { - $("#linenav").hide(); - $("#linemsg").show(); + document.getElementById("linenav").style.display = 'none'; + document.getElementById("linemsg").style.display = 'revert'; display_fen = base_fen; - board.position(base_fen); + set_board_position(base_fen); update_imbalance(base_fen); return; } - $("#linenav").show(); - $("#linemsg").hide(); + document.getElementById("linenav").style.display = 'revert'; + document.getElementById("linemsg").style.display = 'none'; if (current_display_move <= 0) { - $("#prevmove").html("Previous"); + document.getElementById("prevmove").innerHTML = "Previous"; } else { - $("#prevmove").html("<a href=\"javascript:prev_move();\">Previous</a></span>"); + document.getElementById("prevmove").innerHTML = "<a href=\"javascript:prev_move();\">Previous</a></span>"; } - if (current_display_move == current_display_line.pretty_pv.length - 1) { - $("#nextmove").html("Next"); + if (current_display_move == current_display_line.pv.length - 1) { + document.getElementById("nextmove").innerHTML = "Next"; } else { - $("#nextmove").html("<a href=\"javascript:next_move();\">Next</a></span>"); + document.getElementById("nextmove").innerHTML = "<a href=\"javascript:next_move();\">Next</a></span>"; } - var hiddenboard = chess_from(current_display_line.start_fen, current_display_line.pretty_pv, current_display_move); + var hiddenboard = chess_from(current_display_line.start_fen, current_display_line.pv, current_display_move); + set_board_position(hiddenboard.fen()); + if (display_fen !== hiddenboard.fen() && !current_display_line_is_history) { + // Fire off a hash request, since we're now off the main position + // and it just changed. + explore_hash(hiddenboard.fen()); + } display_fen = hiddenboard.fen(); + update_imbalance(hiddenboard.fen()); +} + +var set_board_position = function(new_fen) { board_is_animating = true; var old_fen = board.fen(); - board.position(hiddenboard.fen()); + board.position(new_fen); if (board.fen() === old_fen) { board_is_animating = false; - } else if (!current_display_line_is_history) { - // Fire off a hash request, since we're now off the main position - // and it just changed. - explore_hash(display_fen); } - update_imbalance(hiddenboard.fen()); } /** @@ -1722,8 +1956,8 @@ var update_displayed_line = function() { var set_sound = function(param_enable_sound) { enable_sound = param_enable_sound; if (enable_sound) { - $("#soundon").html("<strong>On</strong>"); - $("#soundoff").html("<a href=\"javascript:set_sound(false)\">Off</a>"); + document.getElementById("soundon").innerHTML = "<strong>On</strong>"; + document.getElementById("soundoff").innerHTML = "<a href=\"javascript:set_sound(false)\">Off</a>"; // Seemingly at least Firefox prefers MP3 over Opus; tell it otherwise, // and also preload the file since the user has selected audio. @@ -1733,11 +1967,11 @@ var set_sound = function(param_enable_sound) { ding.load(); } } else { - $("#soundon").html("<a href=\"javascript:set_sound(true)\">On</a>"); - $("#soundoff").html("<strong>Off</strong>"); + document.getElementById("soundon").innerHTML = "<a href=\"javascript:set_sound(true)\">On</a>"; + document.getElementById("soundoff").innerHTML = "<strong>Off</strong>"; } if (supports_html5_storage()) { - localStorage['enable_sound'] = enable_sound ? 1 : 0; + window['localStorage']['enable_sound'] = enable_sound ? 1 : 0; } } window['set_sound'] = set_sound; @@ -1754,12 +1988,13 @@ var explore_hash = function(fen) { clearTimeout(current_hash_display_timer); current_hash_display_timer = null; } - $("#refutationlines").empty(); - current_hash_xhr = $.ajax({ - url: backend_hash_url + "?fen=" + fen - }).done(function(data, textstatus, xhr) { - show_explore_hash_results(data, fen); - }); + document.getElementById("refutationlines").replaceChildren(); + + current_hash_xhr = new AbortController(); + const signal = current_analysis_xhr.signal; + fetch(backend_hash_url + "?fen=" + fen, { signal }) + .then((response) => response.json()) + .then((data) => { show_explore_hash_results(data, fen); }); } /** Process the JSON response from a hash probe request. @@ -1789,15 +2024,19 @@ var onDragStart = function(source, piece, position, orientation) { recommended_move = get_best_move(pseudogame, source, null, pseudogame.turn() === 'b'); if (recommended_move) { - var squareEl = $('#board .square-' + recommended_move.to); - squareEl.addClass('highlight1-32417'); + var squareEl = document.querySelector('#board .square-' + recommended_move.to); + squareEl.classList.add('highlight1-32417'); } return true; } var mousedownSquare = function(e) { + if (!e.target || !e.target.matches('.square-55d63')) { + return; + } + reverse_dragging_from = null; - var square = $(this).attr('data-square'); + var square = e.target.getAttribute('data-square'); var pseudogame = new Chess(display_fen); if (pseudogame.game_over() === true) { @@ -1813,25 +2052,30 @@ var mousedownSquare = function(e) { reverse_dragging_from = square; recommended_move = get_best_move(pseudogame, null, square, pseudogame.turn() === 'b'); if (recommended_move) { - var squareEl = $('#board .square-' + recommended_move.from); - squareEl.addClass('highlight1-32417'); - squareEl = $('#board .square-' + recommended_move.to); - squareEl.addClass('highlight1-32417'); + var squareEl = document.querySelector('#board .square-' + recommended_move.from); + squareEl.classList.add('highlight1-32417'); + squareEl = document.querySelector('#board .square-' + recommended_move.to); + squareEl.classList.add('highlight1-32417'); } } } var mouseupSquare = function(e) { + if (!e.target || !e.target.matches('.square-55d63')) { + return; + } if (reverse_dragging_from === null) { return; } - var source = $(this).attr('data-square'); + var source = e.target.getAttribute('data-square'); var target = reverse_dragging_from; reverse_dragging_from = null; if (onDrop(source, target) !== 'snapback') { onSnapEnd(source, target); } - $("#board").find('.square-55d63').removeClass('highlight1-32417'); + document.getElementById("board").querySelectorAll('.square-55d63.highlight1-32417').forEach((square) => { + square.classList.remove('highlight1-32417'); + }); } var get_best_move = function(game, source, target, invert) { @@ -1858,8 +2102,8 @@ var get_best_move = function(game, source, target, invert) { // See if we're already exploring some line. if (current_display_line && - current_display_move < current_display_line.pretty_pv.length - 1) { - var first_move = current_display_line.pretty_pv[current_display_move + 1]; + current_display_move < current_display_line.pv.length - 1) { + var first_move = current_display_line.pv[current_display_move + 1]; if (move_hash[first_move]) { return move_hash[first_move]; } @@ -1868,7 +2112,7 @@ var get_best_move = function(game, source, target, invert) { // History and PV take priority over the display lines. for (var i = 0; i < 2; ++i) { var line = display_lines[i]; - var first_move = line.pretty_pv[line.start_display_move_num]; + var first_move = line.pv[line.start_display_move_num]; if (move_hash[first_move]) { return move_hash[first_move]; } @@ -1882,7 +2126,7 @@ var get_best_move = function(game, source, target, invert) { if (!line['score']) { continue; } - var first_move = line['pv_pretty'][0]; + var first_move = line['pv'][0]; if (move_hash[first_move]) { var score = compute_score_sort_key(line['score'], line['depth'], invert); if (best_move_score === null || score > best_move_score) { @@ -1933,8 +2177,8 @@ var onSnapEnd = function(source, target) { }); if (current_display_line && - current_display_move < current_display_line.pretty_pv.length - 1 && - current_display_line.pretty_pv[current_display_move + 1] === move.san) { + current_display_move < current_display_line.pv.length - 1 && + current_display_line.pv[current_display_move + 1] === move.san) { next_move(); return; } @@ -1943,8 +2187,12 @@ var onSnapEnd = function(source, target) { // this move, then select that. Note that this gives us a good priority // order (history first, then PV, then multi-PV lines). for (var i = 0; i < display_lines.length; ++i) { + if (i == 1 && current_display_line) { + // Do not choose PV if not on it. + continue; + } var line = display_lines[i]; - if (line.pretty_pv[line.start_display_move_num] === move.san) { + if (line.pv[line.start_display_move_num] === move.san) { show_line(i, 0); return; } @@ -1970,14 +2218,25 @@ var format_short_score = function(score) { if (!score) { return "???"; } - if (score[0] === 'm') { + if (score[0] === 'T' || score[0] === 't') { + var ret = "TB\u00a0"; + if (score[2]) { // Is a bound. + ret = score[2] + "\u00a0TB\u00a0"; + } + if (score[0] === 'T') { + return ret + Math.ceil(score[1] / 2); + } else { + return ret + "-" + Math.ceil(score[1] / 2); + } + } else if (score[0] === 'M' || score[0] === 'm') { + var sign = (score[0] === 'm') ? '-' : ''; if (score[2]) { // Is a bound. - return score[2] + "\u00a0M " + score[1]; + return score[2] + "\u00a0M " + sign + score[1]; } else { - return "M " + score[1]; + return "M " + sign + score[1]; } } else if (score[0] === 'd') { - return "TB draw"; + return "TB =0"; } else if (score[0] === 'cp') { if (score[2]) { // Is a bound. return score[2] + "\u00a0" + fmt_cp(score[1]); @@ -1989,11 +2248,32 @@ var format_short_score = function(score) { } var format_long_score = function(score) { - if (score[0] === 'm') { - if (score[1] > 0) { + if (!score) { + return "???"; + } + if (score[0] === 'T') { + if (score[1] == 0) { + return "Won for white (tablebase)"; + } else { + return "White wins in " + Math.ceil(score[1] / 2); + } + } else if (score[0] === 't') { + if (score[1] == -1) { + return "Won for black (tablebase)"; + } else { + return "Black wins in " + Math.ceil(score[1] / 2); + } + } else if (score[0] === 'M') { + if (score[1] == 0) { + return "White wins by checkmate"; + } else { return "White mates in " + score[1]; + } + } else if (score[0] === 'm') { + if (score[1] == 0) { + return "Black wins by checkmate"; } else { - return "Black mates in " + (-score[1]); + return "Black mates in " + score[1]; } } else if (score[0] === 'd') { return "Theoretical draw"; @@ -2004,12 +2284,10 @@ var format_long_score = function(score) { } var compute_plot_score = function(score) { - if (score[0] === 'm') { - if (score[1] > 0) { - return 500; - } else { - return -500; - } + if (score[0] === 'M' || score[0] === 'T') { + return 500; + } else if (score[0] === 'm' || score[0] === 't') { + return -500; } else if (score[0] === 'd') { return 0; } else if (score[0] === 'cp') { @@ -2028,21 +2306,26 @@ var compute_plot_score = function(score) { * @param score The score digest tuple. * @param {?number} depth Depth the move has been computed to, or null. * @param {boolean} invert Whether black is to play. + * @param {boolean=} depth_secondary_key * @return {number} */ -var compute_score_sort_key = function(score, depth, invert) { +var compute_score_sort_key = function(score, depth, invert, depth_secondary_key) { var s; if (!score) { return -10000000; } - if (score[0] === 'm') { - if (score[1] > 0) { - // White mates. - s = 99999 - score[1]; - } else { - // Black mates (note the double negative for score[1]). - s = -99999 - score[1]; - } + if (score[0] === 'T') { + // White reaches TB win. + s = 89999 - score[1]; + } else if (score[0] === 't') { + // Black reaches TB win. + s = -(89999 - score[1]); + } else if (score[0] === 'M') { + // White mates. + s = 99999 - score[1]; + } else if (score[0] === 'm') { + // Black mates. + s = -(99999 - score[1]); } else if (score[0] === 'd') { s = 0; } else if (score[0] === 'cp') { @@ -2050,16 +2333,20 @@ var compute_score_sort_key = function(score, depth, invert) { } if (s) { if (invert) s = -s; - return s * 200 + (depth || 0); + if (depth_secondary_key) { + return s * 200 + (depth || 0); + } else { + return s; + } } else { return null; } } /** - * @param {string} new_backend_url + * @param {Object} game */ -var switch_backend = function(new_backend_url, new_backend_hash_url) { +var switch_backend = function(game) { // Stop looking at historic data. current_display_line = null; current_display_move = null; @@ -2088,49 +2375,72 @@ var switch_backend = function(new_backend_url, new_backend_hash_url) { } // Request an immediate fetch with the new backend. - backend_url = new_backend_url; - backend_hash_url = new_backend_hash_url; + backend_url = game['url']; + backend_hash_url = game['hashurl']; + window.location.hash = '#' + game['id']; current_analysis_data = null; ims = 0; request_update(); } window['switch_backend'] = switch_backend; +window['flip'] = function() { board.flip(); redraw_arrows(); }; +window['set_delay_ms'] = function(ms) { delay_ms = ms; console.log('Delay is now ' + ms + ' ms.'); }; + +// Mostly from Wikipedia's chess set as of October 2022, but some pieces are from +// the 2013 version, as I like those better (and it matches the 2014 PNGs; nobody +// really likes change, do they?). That is wK, bK, bQ. wQ is also slightly different, +// but not enough to notice. +const svg_pieces = { + 'wK': 'data:image/svg+xml;base64,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', + 'wQ': 'data:image/svg+xml;base64,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', + 'wR': 'data:image/svg+xml;base64,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', + 'wB': 'data:image/svg+xml;base64,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', + 'wN': 'data:image/svg+xml;base64,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', + 'wP': 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+ 'bK': 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+ 'bQ': 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+ 'bR': 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+ 'bB': 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+ 'bN': 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+ 'bP': 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+}; + +var svg_piece_theme = function(piece) { + return svg_pieces[piece]; +} + var init = function() { unique = get_unique(); // Load settings from HTML5 local storage if available. - if (supports_html5_storage() && localStorage['enable_sound']) { - set_sound(parseInt(localStorage['enable_sound'])); + if (supports_html5_storage() && window['localStorage']['enable_sound']) { + set_sound(parseInt(window['localStorage']['enable_sound'])); } else { set_sound(false); } - if (supports_html5_storage() && localStorage['sort_refutation_lines_by_score']) { - sort_refutation_lines_by_score = parseInt(localStorage['sort_refutation_lines_by_score']); - } else { - sort_refutation_lines_by_score = true; - } // Create board. board = new window.ChessBoard('board', { onMoveEnd: function() { board_is_animating = false; }, draggable: true, + pieceTheme: svg_piece_theme, onDragStart: onDragStart, onDrop: onDrop, onSnapEnd: onSnapEnd }); - $("#board").on('mousedown', '.square-55d63', mousedownSquare); - $("#board").on('mouseup', '.square-55d63', mouseupSquare); + document.getElementById("board").addEventListener('mousedown', mousedownSquare); + document.getElementById("board").addEventListener('mouseup', mouseupSquare); request_update(); - $(window).resize(function() { + window.addEventListener('resize', function() { board.resize(); update_sparkline(displayed_analysis_data || current_analysis_data); update_board_highlight(); redraw_arrows(); }); - $(window).keyup(function(event) { + window.addEventListener('keyup', function(event) { if (event.which == 39) { // Left arrow. next_move(); } else if (event.which == 37) { // Right arrow. @@ -2138,14 +2448,15 @@ var init = function() { } else if (event.which >= 49 && event.which <= 57) { // 1-9. var num = event.which - 49; if (current_games && current_games.length >= num) { - switch_backend(current_games[num]['url'], current_games[num]['hashurl']); + switch_backend(current_games[num]); } } else if (event.which == 78) { // N. next_game(); } }); window.addEventListener('hashchange', possibly_switch_game_from_hash, false); + possibly_switch_game_from_hash(); }; -$(document).ready(init); +document.addEventListener('DOMContentLoaded', init); })();