X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=www%2Fjs%2Fremoteglot.js;h=d98c90210d7c3e216a0f4d7dad813bc45f96ffb7;hb=63f481e1e113ddd0a7deb36c658c83fa05d686d2;hp=7ad1ff02565d904c2080e662a1ad7731b5a5f3e7;hpb=fa63488e30a81f4370aa1e9a565b3d2331f553a6;p=remoteglot diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js index 7ad1ff0..d98c902 100644 --- a/www/js/remoteglot.js +++ b/www/js/remoteglot.js @@ -7,7 +7,7 @@ * @type {Number} * @const * @private */ -var SCRIPT_VERSION = 2016032000; +var SCRIPT_VERSION = 2021021300; /** * The current backend URL. @@ -47,7 +47,10 @@ var displayed_analysis_data = null; * @type {?Array.<{ * name: string, * url: string, + * hashurl: string, * id: string, + * score: Object=, + * result: string=, * }>} * @private */ @@ -91,9 +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; @@ -127,6 +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 @@ -155,10 +158,10 @@ var display_fen = null; /** @typedef {{ * start_fen: string, - * pretty_pv: Array., + * pv: Array., * move_num: number, * toplay: string, - * score: string, + * scores: Array<{first_move: number, score: Object}>, * start_display_move_num: number * }} DisplayLine * @@ -257,31 +260,19 @@ var request_update = function() { 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); + if (delay_ms === 0) { + process_update_response(data, textstatus, xhr); } 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); + setTimeout(function() { process_update_response(data, textstatus, xhr); }, delay_ms); } - 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); + if (!backend_url.match(/history/)) { + var timeout = 100; + current_analysis_request_timer = setTimeout(function() { request_update(); }, timeout); + } }).fail(function(jqXHR, textStatus, errorThrown) { + document.body.style.opacity = null; if (textStatus === "abort") { // Aborted because we are switching backends. Abandon and don't retry, // because another one is already started for us. @@ -292,6 +283,47 @@ var request_update = function() { }); } +var process_update_response = 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; + } + + 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); + } + + // 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); + } 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) { if (!enable_sound) { return; @@ -456,17 +488,25 @@ var position_arrow = function(arrow) { return; } - var pos = $(".square-a8").position(); - var zoom_factor = $("#board").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 pos, from_y, to_y, from_x, to_x; + if (board.orientation() === 'black') { + pos = $(".square-h1").position(); + 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 { + pos = $(".square-a8").position(); + 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"; @@ -548,18 +588,9 @@ 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'], invert); - var sb = compute_score_sort_key(refutation_lines[a]['score'], invert); + 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); return sa - sb; } @@ -570,8 +601,8 @@ 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) { @@ -581,14 +612,15 @@ var find_nonstupid_moves = function(data, margin, invert) { var best_score = undefined; var pv_score = undefined; for (var move in data['refutation_lines']) { - var score = compute_score_sort_key(data['refutation_lines'][move]['score'], invert); - if (move == data['pv_uci'][0]) { + var line = data['refutation_lines'][move]; + 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) { best_score = score; } - if (!(data['refutation_lines'][move]['depth'] >= 8)) { + if (line['depth'] < 8) { return []; } } @@ -601,13 +633,14 @@ var find_nonstupid_moves = function(data, margin, invert) { // The PV move will always be first. var moves = []; for (var move in data['refutation_lines']) { - var score = compute_score_sort_key(data['refutation_lines'][move]['score'], invert); - if (move != data['pv_uci'][0] && best_score - score <= margin) { + var line = data['refutation_lines'][move]; + var score = compute_score_sort_key(line['score'], line['depth'], invert); + 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; } @@ -622,41 +655,50 @@ var thousands = function(x) { /** * @param {!string} start_fen - * @param {Array.} pretty_pv + * @param {Array.} pv * @param {number} move_num * @param {!string} toplay - * @param {!string} score + * @param {Array<{ first_move: integer, score: Object }>} scores * @param {number} start_display_move_num * @param {number=} opt_limit * @param {boolean=} opt_showlast */ -var add_pv = function(start_fen, pretty_pv, move_num, toplay, score, 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, - score: score, + 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=} opt_limit - * @param {boolean=} opt_showlast + * @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; @@ -668,47 +710,66 @@ 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. @@ -724,14 +785,14 @@ var update_board_highlight = function() { } var update_history = function() { - if (display_lines[0] === null || display_lines[0].pretty_pv.length == 0) { + if (display_lines[0] === null || display_lines[0].pv.length == 0) { $("#history").html("No history"); } else if (truncate_display_history) { - $("#history").html(print_pv(0, 8, true)); + $("#history").html(print_pv(0, null, 8, true)); } else { $("#history").html( '(collapse) ' + - print_pv(0, 1, 'W')); + print_pv(0, null)); } } @@ -759,11 +820,17 @@ var update_refutation_lines = function() { var tbl = $("#refutationlines"); tbl.empty(); + if (display_lines.length < 2) { + return; + } + // Find out where the lines start from. var base_line = []; + 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; } @@ -773,11 +840,10 @@ 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]]; @@ -787,9 +853,11 @@ var update_refutation_lines = function() { tr.appendChild(move_td); $(move_td).addClass("move"); - if (line['pv_pretty'].length == 0) { + var scores = base_scores.concat([{ first_move: start_display_move_num, score: line['score'] }]); + + if (line['pv'].length == 0) { // Not found, so just make a one-move PV. - var move = "" + line['pretty_move'] + ""; + var move = "" + line['move'] + ""; $(move_td).html(move); var score_td = document.createElement("td"); @@ -805,13 +873,13 @@ var update_refutation_lines = function() { 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, line['score'], start_display_move_num)); + $(pv_td).html(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'] + ""; + var move = "" + line['move'] + ""; $(move_td).html(move); var score_td = document.createElement("td"); @@ -831,20 +899,11 @@ var update_refutation_lines = function() { 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, line['score'], start_display_move_num, 10)); + $(pv_td).html(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(); } @@ -859,7 +918,7 @@ 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) { @@ -888,13 +947,34 @@ var update_game_list = function(games) { var game_name = document.createTextNode(game['name']); if (game['url'] === backend_url) { + // This game. game_span.appendChild(game_name); + + 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)); + } } else { + // Some other game. var game_a = document.createElement("a"); game_a.setAttribute("href", "#" + game['id']); game_a.appendChild(game_name); game_span.appendChild(game_a); + + var score; + if (game['result']) { + score = " (" + game['result'] + ")"; + } else { + score = " (" + format_short_score(game['score']) + ")"; + } + game_span.appendChild(document.createTextNode(score)); } + games_div.appendChild(game_span); } } @@ -904,6 +984,18 @@ 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; } @@ -912,16 +1004,44 @@ 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']); + 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. @@ -930,8 +1050,9 @@ 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); } @@ -941,11 +1062,10 @@ var update_board = function() { if (current_data['games']) { current_games = current_data['games']; possibly_switch_game_from_hash(); - update_game_list(current_data['games']); } else { current_games = null; - update_game_list(null); } + update_game_list(current_games); // The headline. Names are always fetched from current_data; // the rest can depend a bit. @@ -1006,15 +1126,27 @@ var update_board = function() { 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; @@ -1023,8 +1155,10 @@ var update_board = function() { // The contains a very brief headline. var title_elems = []; - if (data['score']) { - title_elems.push(format_short_score(data['score']).replace(/^ /, "")); + if (data['position'] && data['position']['result']) { + title_elems.push(data['position']['result']); + } else if (data['score']) { + title_elems.push(format_short_score(data['score'])); } if (last_move !== null) { title_elems.push(last_move); @@ -1040,13 +1174,14 @@ 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 { @@ -1073,11 +1208,20 @@ var update_board = function() { update_clock(); // The score. - if (current_display_line) { - if (current_display_line.score) { - $("#score").text(format_long_score(current_display_line.score)); + if (current_display_line && !current_display_line_is_history) { + var score; + if (current_display_line.scores && current_display_line.scores.length > 0) { + 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; + } + } + if (score) { + $("#score").text(format_long_score(score)); } else { - $("#score").text("No score for this move"); + $("#score").text("No score for this line"); } } else if (data['score']) { $("#score").text(format_long_score(data['score'])); @@ -1112,48 +1256,71 @@ var update_board = function() { // Print the PV. $("#pvtitle").text("PV:"); - $("#pv").html(add_pv(data['position']['fen'], data['pv_pretty'], data['position']['move_num'], data['position']['toplay'], data['score'], 0)); + + var scores = [{ first_move: -1, score: data['score'] }]; + $("#pv").html(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; @@ -1161,8 +1328,7 @@ 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); } } @@ -1220,13 +1386,24 @@ var update_sparkline = function(data) { } // FIXME: at some widths, calling sparkline() seems to push // #scorecontainer under the board. + $('#scorespark').unbind('sparklineClick'); $("#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); + // score_history contains the Nth _position_, but format_tooltip + // wants to format the Nth _move_; thus the -1. + return format_tooltip(data, fields[0].offset + first_move_num - 1); + } + }); + $('#scorespark').unbind('sparklineClick'); + $('#scorespark').bind('sparklineClick', function(event) { + var sparkline = event.sparklines[0]; + var region = sparkline.getCurrentRegionFields(); + if (region[0].offset !== undefined) { + show_line(0, first_move_num + region[0].offset - 1); } }); } else { @@ -1241,19 +1418,30 @@ var update_sparkline = function(data) { * @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; + } } + $("#numviewers").text(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') { @@ -1281,7 +1469,6 @@ var update_clock = function() { var white_clock_ms = null; var black_clock_ms = null; - var show_seconds = false; // Static clocks. if (data['position'] && @@ -1322,8 +1509,9 @@ var update_clock = function() { 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. @@ -1379,15 +1567,15 @@ 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; @@ -1395,7 +1583,8 @@ 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( @@ -1409,42 +1598,39 @@ 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 */ @@ -1497,7 +1683,7 @@ 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(); @@ -1506,17 +1692,35 @@ var next_move = function() { } window['next_move'] = next_move; +var next_game = function() { + if (current_games === null) { + return; + } + + // Try to find the game we are currently looking at. + for (var game_num = 0; game_num < current_games.length; ++game_num) { + 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]); + return; + } + } + + // Couldn't find it; give up. +} + 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"; @@ -1561,10 +1765,12 @@ 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); @@ -1586,8 +1792,11 @@ var update_move_highlight = function() { $("#pvtitle").text("Exploring:"); current_display_line.start_display_move_num = 0; display_lines.push(current_display_line); - $("#pv").html(print_pv(display_lines.length - 1)); + $("#pv").html(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)); @@ -1607,10 +1816,10 @@ 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; } @@ -1622,12 +1831,17 @@ 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(); display_fen = base_fen; - board.position(base_fen); + set_board_position(base_fen); update_imbalance(base_fen); return; } @@ -1640,25 +1854,30 @@ var update_displayed_line = function() { } else { $("#prevmove").html("<a href=\"javascript:prev_move();\">Previous</a></span>"); } - if (current_display_move == current_display_line.pretty_pv.length - 1) { + if (current_display_move == current_display_line.pv.length - 1) { $("#nextmove").html("Next"); } else { $("#nextmove").html("<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()); } /** @@ -1801,10 +2020,19 @@ var get_best_move = function(game, source, target, invert) { move_hash[moves[i].san] = moves[i]; } + // See if we're already exploring some line. + if (current_display_line && + 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]; + } + } + // 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]; } @@ -1818,9 +2046,9 @@ 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'], invert); + var score = compute_score_sort_key(line['score'], line['depth'], invert); if (best_move_score === null || score > best_move_score) { best_move = move_hash[first_move]; best_move_score = score; @@ -1869,8 +2097,8 @@ 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; } @@ -1879,8 +2107,12 @@ 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; } @@ -1891,14 +2123,6 @@ var onSnapEnd = function(source, target) { } // End of dragging-related code. -var pad = function(val, num_digits) { - var s = val.toString(); - while (s.length < num_digits) { - s = " " + s; - } - return s; -} - var fmt_cp = function(v) { if (v === 0) { return "0.00"; @@ -1914,30 +2138,62 @@ 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" + pad(score[1], 3); + return score[2] + "\u00a0M " + sign + score[1]; } else { - return "M" + pad(score[1], 3); + 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]); } else { - return pad(fmt_cp(score[1]), 5); + return fmt_cp(score[1]); } } return null; } 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"; @@ -1948,12 +2204,10 @@ 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') { @@ -1970,36 +2224,49 @@ 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, 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 (invert) s = -s; - return s; + 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') { - return 0; + s = 0; } else if (score[0] === 'cp') { - return invert ? -score[1] : score[1]; + s = score[1]; + } + if (s) { + if (invert) s = -s; + if (depth_secondary_key) { + return s * 200 + (depth || 0); + } else { + return s; + } + } else { + return null; } - return null; } /** - * @param {string} new_backend_url + * @param {Object} game */ -var switch_backend = function(new_backend_url) { +var switch_backend = function(game) { // Stop looking at historic data. current_display_line = null; current_display_move = null; @@ -2028,13 +2295,41 @@ var switch_backend = function(new_backend_url) { } // Request an immediate fetch with the new backend. - backend_url = new_backend_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': 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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(); @@ -2044,17 +2339,13 @@ var init = function() { } 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 @@ -2070,13 +2361,21 @@ var init = function() { redraw_arrows(); }); $(window).keyup(function(event) { - if (event.which == 39) { + if (event.which == 39) { // Left arrow. next_move(); - } else if (event.which == 37) { + } else if (event.which == 37) { // Right arrow. prev_move(); + } 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]); + } + } 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);