X-Git-Url: https://git.sesse.net/?p=remoteglot;a=blobdiff_plain;f=www%2Fjs%2Fremoteglot.js;h=d6a08a875b8642332f76f6bf60222797eec36f6e;hp=97efaca26b1e3f47f6541710f8566a4a7c3214d6;hb=HEAD;hpb=6661ccefc420ce4c471b2072f2bb10a9e1bae867 diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js index 97efaca..d36bf9e 100644 --- a/www/js/remoteglot.js +++ b/www/js/remoteglot.js @@ -1,13 +1,14 @@ (function() { +'use strict'; /** * Version of this script. If the server returns a version larger than * this, it is a sign we should reload to upgrade ourselves. * - * @type {Number} + * @type {number} * @const * @private */ -var SCRIPT_VERSION = 2016113008; +let SCRIPT_VERSION = 2023122700; /** * The current backend URL. @@ -15,14 +16,14 @@ var SCRIPT_VERSION = 2016113008; * @type {!string} * @private */ -var backend_url = "/analysis.pl"; -var backend_hash_url = "/hash"; +let backend_url = "/analysis.pl"; +let backend_hash_url = "/hash"; /** @type {window.ChessBoard} @private */ -var board = null; +let board = null; /** @type {boolean} @private */ -var board_is_animating = false; +let board_is_animating = false; /** * The most recent analysis data we have from the server @@ -30,7 +31,7 @@ var board_is_animating = false; * * @type {?Object} * @private */ -var current_analysis_data = null; +let current_analysis_data = null; /** * If we are displaying previous analysis or from hash, this is non-null, @@ -39,7 +40,7 @@ var current_analysis_data = null; * @type {?Object} * @private */ -var displayed_analysis_data = null; +let displayed_analysis_data = null; /** * Games currently in progress, if any. @@ -54,7 +55,7 @@ var displayed_analysis_data = null; * }>} * @private */ -var current_games = null; +let current_games = null; /** @type {Array.<{ * from_col: number, @@ -67,65 +68,78 @@ var current_games = null; * }>} * @private */ -var arrows = []; +let arrows = []; /** @type {Array.>} */ -var occupied_by_arrows = []; +let occupied_by_arrows = []; /** Currently displayed refutation lines (on-screen). * Can either come from the current_analysis_data, displayed_analysis_data, - * or hash_refutation_lines. + * or hash_refutation_lines (choose_displayed_refutation_lines() chooses which one). + * + * @typedef {{ + * score: Array, + * depth: string, + * pv: Array., + * move: string + * }} + * @private */ -var refutation_lines = []; +var RefutationLine; /** Refutation lines from current hash probe. - * * If non-null, will override refutation lines from the base position. - * Note that these are relative to display_fen, not base_fen. + * + * @type {Array.} */ -var hash_refutation_lines = null; - -/** @type {!number} @private */ -var move_num = 1; +let hash_refutation_lines = null; -/** @type {!string} @private */ -var toplay = 'W'; +/** + * What FEN hash_refutation_lines is relative to. + */ +let hash_refutation_lines_base_fen = null; /** @type {number} @private */ -var ims = 0; +let ims = 0; /** @type {boolean} @private */ -var truncate_display_history = true; +let truncate_display_history = true; /** @type {!string|undefined} @private */ -var highlight_from = undefined; +let highlight_from = undefined; /** @type {!string|undefined} @private */ -var highlight_to = undefined; +let highlight_to = undefined; /** The HTML object of the move currently being highlighted (in red). - * @type {?jQuery} + * @type {?Element} * @private */ -var highlighted_move = null; +let highlighted_move = null; /** Currently suggested/recommended move when dragging. * @type {?{from: !string, to: !string}} * @private */ -var recommended_move = null; +let recommended_move = null; /** If reverse-dragging (dragging from the destination square to the * source square), the destination square. * @type {?string} * @private */ -var reverse_dragging_from = null; +let reverse_dragging_from = null; /** @type {?number} @private */ -var unique = null; +let unique = null; + +/** @type {?string} @private */ +let admin_password = null; /** @type {boolean} @private */ -var enable_sound = false; +let enable_sound = false; + +/** @type {!number} @private */ +let delay_ms = 0; /** * Our best estimate of how many milliseconds we need to add to @@ -135,36 +149,40 @@ var enable_sound = false; * @type {?number} * @private */ -var client_clock_offset_ms = null; +let client_clock_offset_ms = null; -var clock_timer = null; +let clock_timer = null; /** The current position being analyzed, represented as a FEN string. * Note that this is not necessarily the same as display_fen. * @type {?string} * @private */ -var base_fen = null; +let base_fen = null; /** The current position on the board, represented as a FEN string. * Note that board.fen() does not contain e.g. who is to play. * @type {?string} * @private */ -var display_fen = null; +let display_fen = null; /** @typedef {{ * start_fen: string, * pv: Array., - * move_num: number, - * toplay: string, * scores: Array<{first_move: number, score: Object}>, * start_display_move_num: number - * }} DisplayLine + * }} + * + * "start_display_move_num" is the (half-)move number to start displaying the PV at, + * i.e., the index into pv. * - * "start_display_move_num" is the (half-)move number to start displaying the PV at. - * "score" is also evaluated at this point. + * "score" is also evaluated at this point. scores can be empty and is frequently + * sparse; it's generally only really useful for history (we obviously don't know + * much about how the score will * move during e.g. a PV, except that a mate/TB + * counter might go down). */ +var DisplayLine; /** All PVs that we currently know of. * @@ -175,61 +193,65 @@ var display_fen = null; * @type {Array.} * @private */ -var display_lines = []; +let display_lines = []; /** @type {?DisplayLine} @private */ -var current_display_line = null; +let current_display_line = null; /** @type {boolean} @private */ -var current_display_line_is_history = false; +let current_display_line_is_history = false; -/** @type {?number} @private */ -var current_display_move = null; +/** @type {?number} @private + * + * The highlighted/used/shown move in current_display_line.pv, in terms of absolute index + * (not relative to e.g. the start FEN). + */ +let 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; +let current_analysis_xhr = null; /** * The current timer to fire off a request to get main analysis (not history), * if any, so that we can abort it. * - * @type {?Number} + * @type {?number} * @private */ -var current_analysis_request_timer = null; +let 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; +let 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; +let current_hash_xhr = null; /** * The current timer to display hash probe information (it could be waiting on the * board to stop animating), if any, so that we can abort it. * - * @type {?Number} + * @type {?number} * @private */ -var current_hash_display_timer = null; +let current_hash_display_timer = null; -var supports_html5_storage = function() { +function supports_html5_storage() { try { return 'localStorage' in window && window['localStorage'] !== null; } catch (e) { @@ -239,92 +261,117 @@ var supports_html5_storage = function() { // Make the unique token persistent so people refreshing the page won't count twice. // 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']; +function get_unique() { + let use_local_storage = supports_html5_storage(); + if (use_local_storage && window['localStorage']['unique']) { + return window['localStorage']['unique']; } - var unique = Math.random(); + let unique = Math.random(); if (use_local_storage) { - localStorage['unique'] = unique; + window['localStorage']['unique'] = unique; } return unique; } -var request_update = function() { +function request_update() { 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); + }; - 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); - } + 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; + } - // 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 (delay_ms === 0) { + process_update_response(obj.json, obj.headers); + } else { + setTimeout(function() { process_update_response(obj.json, obj.headers); }, delay_ms); } - } - var timeout = 100; - 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); - } + // Next update. + if (!backend_url.match(/history/)) { + let 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; + }) - // Next update. - if (!backend_url.match(/history/)) { - current_analysis_request_timer = setTimeout(function() { request_update(); }, timeout); - } - }).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); +} + +function process_update_response(data, headers) { + sync_server_clock(headers.get('Date')); + ims = headers.get('X-RGLM'); + let num_viewers = headers.get('X-RGNV'); + let 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 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. + let valid = true; + if (new_data['pv']) { + let hiddenboard = new Chess(new_data['position']['fen']); + for (let 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) { +function possibly_play_sound(old_data, new_data) { if (!enable_sound) { return; } if (old_data === null) { return; } - var ding = document.getElementById('ding'); + let ding = document.getElementById('ding'); if (ding && ding.play) { if (old_data['position'] && old_data['position']['fen'] && new_data['position'] && new_data['position']['fen'] && - (old_data['position']['fen'] !== new_data['position']['fen'] || - old_data['position']['move_num'] !== new_data['position']['move_num'])) { + old_data['position']['fen'] !== new_data['position']['fen']) { ding.play(); } } @@ -333,10 +380,10 @@ var possibly_play_sound = function(old_data, new_data) { /** * @type {!string} server_date_string */ -var sync_server_clock = function(server_date_string) { - var server_time_ms = new Date(server_date_string).getTime(); - var client_time_ms = new Date().getTime(); - var estimated_offset_ms = server_time_ms - client_time_ms; +function sync_server_clock(server_date_string) { + let server_time_ms = new Date(server_date_string).getTime(); + let client_time_ms = new Date().getTime(); + let estimated_offset_ms = server_time_ms - client_time_ms; // In order not to let the noise move us too much back and forth // (the server only has one-second resolution anyway), we only @@ -347,33 +394,60 @@ var sync_server_clock = function(server_date_string) { } } -var clear_arrows = function() { - for (var i = 0; i < arrows.length; ++i) { +function clear_arrows() { + for (let i = 0; i < arrows.length; ++i) { if (arrows[i].svg) { - if (arrows[i].svg.parentElement) { - arrows[i].svg.parentElement.removeChild(arrows[i].svg); - } + arrows[i].svg.remove(); delete arrows[i].svg; } } arrows = []; occupied_by_arrows = []; - for (var y = 0; y < 8; ++y) { + for (let y = 0; y < 8; ++y) { occupied_by_arrows.push([false, false, false, false, false, false, false, false]); } } -var redraw_arrows = function() { - for (var i = 0; i < arrows.length; ++i) { +function redraw_arrows() { + for (let i = 0; i < arrows.length; ++i) { position_arrow(arrows[i]); } } +/** @param {!string} fen + * @return {!string} + * + * Return whose side it is to play (w or b), given a FEN. + */ +function find_toplay(fen) { + return fen.split(' ')[1]; +} + +/** @param {!string} fen + * @return {!number} + * + * Return the move clock, starting from 1. See also find_toplay(). + */ +function find_move_num(fen) { + return parseInt(fen.split(' ')[5]); +} + +/** @param {!string} fen + * @return {!number} + * + * Return the half-move clock, starting from 0 (and never resetting). + */ +function find_halfmove_num(fen) { + let move_num = find_move_num(fen); + let toplay = find_toplay(fen); + return (move_num - 1) * 2 + (toplay === 'w' ? 0 : 1); +} + /** @param {!number} x * @return {!number} */ -var sign = function(x) { +function sign(x) { if (x > 0) { return 1; } else if (x < 0) { @@ -388,11 +462,11 @@ var sign = function(x) { * @param {!string} to The square the arrow is to (e.g. e4). * @return {boolean} */ -var interfering_arrow = function(from, to) { - var from_col = from.charCodeAt(0) - "a1".charCodeAt(0); - var from_row = from.charCodeAt(1) - "a1".charCodeAt(1); - var to_col = to.charCodeAt(0) - "a1".charCodeAt(0); - var to_row = to.charCodeAt(1) - "a1".charCodeAt(1); +function interfering_arrow(from, to) { + let from_col = from.charCodeAt(0) - "a1".charCodeAt(0); + let from_row = from.charCodeAt(1) - "a1".charCodeAt(1); + let to_col = to.charCodeAt(0) - "a1".charCodeAt(0); + let to_row = to.charCodeAt(1) - "a1".charCodeAt(1); occupied_by_arrows[from_row][from_col] = true; @@ -403,10 +477,10 @@ var interfering_arrow = function(from, to) { } // Sliding piece: Check if anything except the from-square is seen before. - var dx = sign(to_col - from_col); - var dy = sign(to_row - from_row); - var x = from_col; - var y = from_row; + let dx = sign(to_col - from_col); + let dy = sign(to_row - from_row); + let x = from_col; + let y = from_row; do { x += dx; y += dy; @@ -429,16 +503,16 @@ var interfering_arrow = function(from, to) { * @param {!number} u * @return {!string} The point in "x y" form, suitable for SVG paths. */ -var point_from_start = function(x1, y1, x2, y2, t, u) { - var dx = x2 - x1; - var dy = y2 - y1; +function point_from_start(x1, y1, x2, y2, t, u) { + let dx = x2 - x1; + let dy = y2 - y1; - var norm = 1.0 / Math.sqrt(dx * dx + dy * dy); + let norm = 1.0 / Math.sqrt(dx * dx + dy * dy); dx *= norm; dy *= norm; - var x = x1 + dx * t + dy * u; - var y = y1 + dy * t - dx * u; + let x = x1 + dx * t + dy * u; + let y = y1 + dy * t - dx * u; return x + " " + y; } @@ -452,20 +526,20 @@ var point_from_start = function(x1, y1, x2, y2, t, u) { * @param {!number} u * @return {!string} The point in "x y" form, suitable for SVG paths. */ -var point_from_end = function(x1, y1, x2, y2, t, u) { - var dx = x2 - x1; - var dy = y2 - y1; +function point_from_end(x1, y1, x2, y2, t, u) { + let dx = x2 - x1; + let dy = y2 - y1; - var norm = 1.0 / Math.sqrt(dx * dx + dy * dy); + let norm = 1.0 / Math.sqrt(dx * dx + dy * dy); dx *= norm; dy *= norm; - var x = x2 + dx * t + dy * u; - var y = y2 + dy * t - dx * u; + let x = x2 + dx * t + dy * u; + let y = y2 + dy * t - dx * u; return x + " " + y; } -var position_arrow = function(arrow) { +function position_arrow(arrow) { if (arrow.svg) { if (arrow.svg.parentElement) { arrow.svg.parentElement.removeChild(arrow.svg); @@ -476,44 +550,41 @@ var position_arrow = function(arrow) { return; } - var zoom_factor = $("#board").width() / 400.0; - var line_width = arrow.line_width * zoom_factor; - var arrow_size = arrow.arrow_size * zoom_factor; + // We always draw as if the board is 400x400, the viewBox will adjust that for us + let line_width = arrow.line_width; + let arrow_size = arrow.arrow_size; - var square_width = $(".square-a8").width(); - var pos, from_y, to_y, from_x, to_x; + let square_width = 400 / 8; + let 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 = $(".square-a8").position(); from_y = (7 - arrow.from_row + 0.5)*square_width; to_y = (7 - arrow.to_row + 0.5)*square_width; from_x = (arrow.from_col + 0.5)*square_width; to_x = (arrow.to_col + 0.5)*square_width; } - var SVG_NS = "http://www.w3.org/2000/svg"; - var XHTML_NS = "http://www.w3.org/1999/xhtml"; - var svg = document.createElementNS(SVG_NS, "svg"); - svg.setAttribute("width", /** @type{number} */ ($("#board").width())); - svg.setAttribute("height", /** @type{number} */ ($("#board").height())); - svg.setAttribute("style", "position: absolute"); - svg.setAttribute("position", "absolute"); + let SVG_NS = "http://www.w3.org/2000/svg"; + let XHTML_NS = "http://www.w3.org/1999/xhtml"; + let svg = document.createElementNS(SVG_NS, "svg"); + svg.setAttribute("width", "100%"); + svg.setAttribute("height", "100%"); + svg.setAttribute("viewBox", "0 0 400 400"); svg.setAttribute("version", "1.1"); svg.setAttribute("class", "c1"); svg.setAttribute("xmlns", XHTML_NS); - var x1 = from_x; - var y1 = from_y; - var x2 = to_x; - var y2 = to_y; + let x1 = from_x; + let y1 = from_y; + let x2 = to_x; + let y2 = to_y; // Draw the line. - var outline = document.createElementNS(SVG_NS, "path"); + let outline = document.createElementNS(SVG_NS, "path"); outline.setAttribute("d", "M " + point_from_start(x1, y1, x2, y2, arrow_size / 2, 0) + " L " + point_from_end(x1, y1, x2, y2, -arrow_size / 2, 0)); outline.setAttribute("xmlns", XHTML_NS); outline.setAttribute("stroke", "#666"); @@ -521,7 +592,7 @@ var position_arrow = function(arrow) { outline.setAttribute("fill", "none"); svg.appendChild(outline); - var path = document.createElementNS(SVG_NS, "path"); + let path = document.createElementNS(SVG_NS, "path"); path.setAttribute("d", "M " + point_from_start(x1, y1, x2, y2, arrow_size / 2, 0) + " L " + point_from_end(x1, y1, x2, y2, -arrow_size / 2, 0)); path.setAttribute("xmlns", XHTML_NS); path.setAttribute("stroke", arrow.fg_color); @@ -530,7 +601,7 @@ var position_arrow = function(arrow) { svg.appendChild(path); // Then the arrow head. - var head = document.createElementNS(SVG_NS, "path"); + let head = document.createElementNS(SVG_NS, "path"); head.setAttribute("d", "M " + point_from_end(x1, y1, x2, y2, 0, 0) + " L " + point_from_end(x1, y1, x2, y2, -arrow_size, -arrow_size / 2) + @@ -543,8 +614,11 @@ 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.position = 'absolute'; + svg.style.top = '0px'; /* Border for .board-b72b1. */ + svg.style.left = '0px'; + svg.style.pointerEvents = 'none'; + document.getElementById('board').appendChild(svg); arrow.svg = svg; } @@ -555,14 +629,14 @@ var position_arrow = function(arrow) { * @param {number} line_width * @param {number} arrow_size */ -var create_arrow = function(from_square, to_square, fg_color, line_width, arrow_size) { - var from_col = from_square.charCodeAt(0) - "a1".charCodeAt(0); - var from_row = from_square.charCodeAt(1) - "a1".charCodeAt(1); - var to_col = to_square.charCodeAt(0) - "a1".charCodeAt(0); - var to_row = to_square.charCodeAt(1) - "a1".charCodeAt(1); +function create_arrow(from_square, to_square, fg_color, line_width, arrow_size) { + let from_col = from_square.charCodeAt(0) - "a1".charCodeAt(0); + let from_row = from_square.charCodeAt(1) - "a1".charCodeAt(1); + let to_col = to_square.charCodeAt(0) - "a1".charCodeAt(0); + let to_row = to_square.charCodeAt(1) - "a1".charCodeAt(1); // Create arrow. - var arrow = { + let arrow = { from_col: from_col, from_row: from_row, to_col: to_col, @@ -576,9 +650,9 @@ var create_arrow = function(from_square, to_square, fg_color, line_width, arrow_ arrows.push(arrow); } -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); +function compare_by_score(refutation_lines, invert, a, b) { + let sa = compute_score_sort_key(refutation_lines[b]['score'], refutation_lines[b]['depth'], invert); + let sb = compute_score_sort_key(refutation_lines[a]['score'], refutation_lines[a]['depth'], invert); return sa - sb; } @@ -593,15 +667,15 @@ var compare_by_score = function(refutation_lines, invert, a, b) { * @return {Array.} The FEN representation (e.g. Ne4) of all * moves, in score order. */ -var find_nonstupid_moves = function(data, margin, invert) { +function find_nonstupid_moves(data, margin, invert) { // First of all, if there are any moves that are more than 0.5 ahead of // the primary move, the refutation lines are probably bunk, so just // kill them all. - var best_score = undefined; - 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, false); + let best_score = undefined; + let pv_score = undefined; + for (let move in data['refutation_lines']) { + let line = data['refutation_lines'][move]; + let score = compute_score_sort_key(line['score'], line['depth'], invert); if (move == data['pv'][0]) { pv_score = score; } @@ -619,15 +693,16 @@ var find_nonstupid_moves = function(data, margin, invert) { // Now find all moves that are within “margin” of the best score. // The PV move will always be first. - var moves = []; - for (var move in data['refutation_lines']) { - var line = data['refutation_lines'][move]; - var score = compute_score_sort_key(line['score'], line['depth'], invert); + let moves = []; + for (let move in data['refutation_lines']) { + let line = data['refutation_lines'][move]; + let 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) }); + let toplay = find_toplay(data['position']['fen']); + moves = moves.sort(function(a, b) { return compare_by_score(data['refutation_lines'], toplay, a, b) }); moves.unshift(data['pv'][0]); return moves; @@ -637,230 +712,271 @@ var find_nonstupid_moves = function(data, margin, invert) { * @param {number} x * @return {!string} */ -var thousands = function(x) { +function thousands(x) { return String(x).split('').reverse().join('').replace(/(\d{3}\B)/g, '$1,').split('').reverse().join(''); } /** * @param {!string} start_fen * @param {Array.} pv - * @param {number} move_num - * @param {!string} toplay - * @param {Array<{ first_move: integer, score: Object }>} scores + * @param {Array<{ first_move: number, score: Object }>} scores * @param {number} start_display_move_num * @param {number=} opt_limit * @param {boolean=} opt_showlast */ -var add_pv = function(start_fen, pv, move_num, toplay, scores, start_display_move_num, opt_limit, opt_showlast) { +function add_pv(start_fen, pv, scores, start_display_move_num, opt_limit, opt_showlast) { display_lines.push({ start_fen: start_fen, 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); + let 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 display_line = display_lines[line_num]; - var pv = display_line.pv; - var move_num = display_line.move_num; - var toplay = display_line.toplay; +function print_pv(line_num, splicepos, opt_limit, opt_showlast) { + let display_line = display_lines[line_num]; + let pv = display_line.pv; + let halfmove_num = find_halfmove_num(display_line.start_fen) + 2; // From two, for simplicity. + let start_halfmove_num = halfmove_num; + + let ret = document.createDocumentFragment(); // Truncate PV at the start if needed. - var start_display_move_num = display_line.start_display_move_num; - if (start_display_move_num > 0) { - pv = pv.slice(start_display_move_num); - var to_add = start_display_move_num; - if (toplay === 'B') { - ++move_num; - toplay = 'W'; - --to_add; - } - if (to_add % 2 == 1) { - toplay = 'B'; - --to_add; - } - move_num += to_add / 2; - } - - var ret = ''; - var i = 0; - 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. - ret = '(…) '; - i = pv.length - opt_limit; - if (i % 2 == 1) { - ++i; - } - move_num += i / 2; - } else if (toplay == 'B' && pv.length > 0) { - var move = "" + pv[0] + ""; - ret = move_num + '. … ' + move; - toplay = 'W'; - ++i; - ++move_num; - } - for ( ; i < pv.length; ++i) { - var move = "" + pv[i] + ""; - - if (toplay == 'W') { - if (i > opt_limit && !opt_showlast) { - return ret + ' (…)'; + let to_skip = display_line.start_display_move_num; + if (opt_limit && opt_showlast && pv.length - to_skip > opt_limit) { + // Explicit (UI-visible) truncation from the start, for the history. + ret.appendChild(document.createTextNode('(')); + let link = document.createElement('a'); + link.className = 'move'; + link.href = 'javascript:collapse_history(false)'; + link.textContent = '…'; + ret.appendChild(link); + ret.appendChild(document.createTextNode(') ')); + to_skip = pv.length - opt_limit; + to_skip += to_skip % 2; // Make sure it starts on a white move. + } + if (to_skip > 0) { + pv = pv.slice(to_skip); + halfmove_num += to_skip; + if (splicepos !== null) { + splicepos -= to_skip; + if (splicepos < 0) { + splicepos = 0; } - if (ret != '') { - ret += ' '; + } + } + + // The initial move number needs to go before any (TB: …) marker. + if (halfmove_num % 2 == 1) { + // Black move. + ret.appendChild(document.createTextNode((halfmove_num - 1) / 2 + '. … ')); + } else { + // White move. + ret.appendChild(document.createTextNode(halfmove_num / 2 + '. ')); + } + let in_tb = false; + for (let i = 0; i < pv.length; ++i, ++halfmove_num) { + let prefix = ''; + if (splicepos === i) { + prefix = '(TB:'; + in_tb = true; + } + + if (halfmove_num % 2 == 0 && i != 0) { + if (i > opt_limit && !opt_showlast) { + if (in_tb) { + prefix += ')'; + } + ret.appendChild(document.createTextNode(prefix + ' (…)')); + return ret; } - ret += move_num + '. ' + move; - ++move_num; - toplay = 'B'; + prefix += ' ' + (halfmove_num / 2) + '. '; } else { - ret += ' ' + move; - toplay = 'W'; + prefix += ' '; } + ret.appendChild(document.createTextNode(prefix)); + + let link = document.createElement('a'); + link.className = 'move'; + link.setAttribute('id', 'automove' + line_num + '-' + (halfmove_num - start_halfmove_num)); + link.textContent = pv[i]; + link.href = 'javascript:show_line(' + line_num + ', ' + (halfmove_num - start_halfmove_num) + ');'; + ret.appendChild(link); + } + if (in_tb) { + ret.appendChild(document.createTextNode(')')); } return ret; } /** Update the highlighted to/from squares on the board. - * Based on the global "highlight_from" and "highlight_to" variables. + * Based on the global "highlight_from" and "highlight_to" letiables. */ -var update_board_highlight = function() { - $("#board").find('.square-55d63').removeClass('nonuglyhighlight'); +function update_board_highlight() { + document.getElementById("board").querySelectorAll('.square-55d63').forEach((square) => square.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() { +function update_history() { + let history = document.getElementById('history'); if (display_lines[0] === null || display_lines[0].pv.length == 0) { - $("#history").html("No history"); + history.textContent = 'No history'; } else if (truncate_display_history) { - $("#history").html(print_pv(0, 8, true)); + history.replaceChildren(print_pv(0, null, 8, true)); } else { - $("#history").html( - '(collapse) ' + - print_pv(0)); + history.textContent = '('; + let link = document.createElement('a'); + link.className = 'move'; + link.href = 'javascript:collapse_history(true)'; + link.textContent = 'collapse'; + history.appendChild(link); + history.appendChild(document.createTextNode(') ')); + history.append(print_pv(0, null)); } - update_move_highlight(); } /** * @param {!boolean} truncate_history */ -var collapse_history = function(truncate_history) { +function collapse_history(truncate_history) { truncate_display_history = truncate_history; update_history(); } window['collapse_history'] = collapse_history; -/** Update the HTML display of multi-PV from the global "refutation_lines". +function choose_displayed_refutation_lines() { + if (hash_refutation_lines) { + // If we're in hash exploration, that takes precedence. + return [hash_refutation_lines, hash_refutation_lines_base_fen]; + } else { + let data = displayed_analysis_data || current_analysis_data; + return [data['refutation_lines'], data['position']['fen']]; + } +} + +/** Update the HTML display of multi-PV. * * Also recreates the global "display_lines". */ -var update_refutation_lines = function() { - if (base_fen === null) { +function update_refutation_lines() { + const [refutation_lines, refutation_lines_base_fen] = choose_displayed_refutation_lines(); + if (!refutation_lines) { return; } if (display_lines.length > 2) { // Truncate so that only the history and PV is left. display_lines = [ display_lines[0], display_lines[1] ]; } - var tbl = $("#refutationlines"); - tbl.empty(); + let tbl = document.getElementById("refutationlines"); + tbl.replaceChildren(); if (display_lines.length < 2) { + // Update the move highlight, as we've rewritten all the HTML. + update_move_highlight(); return; } // Find out where the lines start from. - var base_line = []; - var base_scores = display_lines[1].scores; - var start_display_move_num = 0; + let base_line = []; + let base_scores = display_lines[1].scores; + let start_display_move_num = 0; if (hash_refutation_lines) { 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; } - var moves = []; - for (var move in refutation_lines) { + let moves = []; + for (let move in refutation_lines) { moves.push(move); } - var invert = (toplay === 'B'); + let invert = (find_toplay(refutation_lines_base_fen) === 'b'); if (current_display_line && current_display_move % 2 == 0 && !current_display_line_is_history) { invert = !invert; } 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]]; + for (let i = 0; i < moves.length; ++i) { + let line = refutation_lines[moves[i]]; - var tr = document.createElement("tr"); + let tr = document.createElement("tr"); - var move_td = document.createElement("td"); + let 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'] }]); + let 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['move'] + ""; - $(move_td).html(move); - var score_td = document.createElement("td"); - - $(score_td).addClass("score"); - $(score_td).text("—"); + let link = document.createElement('a'); + link.className = 'move'; + link.href = 'javascript:show_line(' + display_lines.length + ', ' + 0 + ')'; + link.textContent = line['move']; + move_td.replaceChildren(link); + + let score_td = document.createElement("td"); + score_td.classList.add("score"); + score_td.textContent = "—"; tr.appendChild(score_td); - var depth_td = document.createElement("td"); + let 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"); + let pv_td = document.createElement("td"); tr.appendChild(pv_td); - $(pv_td).addClass("pv"); - $(pv_td).html(add_pv(base_fen, base_line.concat([ line['move'] ]), move_num, toplay, scores, start_display_move_num)); + pv_td.classList.add("pv"); + pv_td.append(add_pv(refutation_lines_base_fen, base_line.concat([ line['move'] ]), scores, start_display_move_num)); tbl.append(tr); continue; } - var move = "" + line['move'] + ""; - $(move_td).html(move); + let move_link = document.createElement("a"); + move_link.classList.add("move"); + move_link.setAttribute("href", "javascript:show_line(" + display_lines.length + ", 0)"); + move_link.textContent = line['move']; + move_td.appendChild(move_link); - var score_td = document.createElement("td"); + let 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"); + let 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"); + let 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']), move_num, toplay, scores, start_display_move_num, 10)); + pv_td.classList.add("pv"); + pv_td.append(add_pv(refutation_lines_base_fen, base_line.concat(line['pv']), scores, start_display_move_num, 10)); tbl.append(tr); } @@ -877,12 +993,12 @@ var update_refutation_lines = function() { * @param {Array.} moves * @param {number} last_move */ -var chess_from = function(fen, moves, last_move) { - var hiddenboard = new Chess(); +function chess_from(fen, moves, last_move) { + let hiddenboard = new Chess(); if (fen !== null && fen !== undefined) { hiddenboard.load(fen); } - for (var i = 0; i <= last_move; ++i) { + for (let i = 0; i <= last_move; ++i) { if (moves[i] === '0-0') { hiddenboard.move('O-O'); } else if (moves[i] === '0-0-0') { @@ -894,25 +1010,25 @@ var chess_from = function(fen, moves, last_move) { return hiddenboard; } -var update_game_list = function(games) { - $("#games").text(""); +function update_game_list(games) { + document.getElementById("games").textContent = ""; if (games === null) { return; } - var games_div = document.getElementById('games'); - for (var game_num = 0; game_num < games.length; ++game_num) { - var game = games[game_num]; - var game_span = document.createElement("span"); + let games_div = document.getElementById('games'); + for (let game_num = 0; game_num < games.length; ++game_num) { + let game = games[game_num]; + let game_span = document.createElement("span"); game_span.setAttribute("class", "game"); - var game_name = document.createTextNode(game['name']); + let 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; + let score; if (current_analysis_data['position']['result']) { score = " (" + current_analysis_data['position']['result'] + ")"; } else { @@ -922,12 +1038,12 @@ var update_game_list = function(games) { } } else { // Some other game. - var game_a = document.createElement("a"); + let game_a = document.createElement("a"); game_a.setAttribute("href", "#" + game['id']); game_a.appendChild(game_name); game_span.appendChild(game_a); - var score; + let score; if (game['result']) { score = " (" + game['result'] + ")"; } else { @@ -944,11 +1060,11 @@ var update_game_list = function(games) { * Try to find a running game that matches with the current hash, * 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_-]+)/); +function possibly_switch_game_from_hash() { + let history_match = window.location.hash.match(/^#history=([a-zA-Z0-9_-]+)/); if (history_match !== null) { - var game_id = history_match[1]; - var fake_game = { + let game_id = history_match[1]; + let fake_game = { url: '/history/' + game_id + '.json', hashurl: '', id: 'history=' + game_id @@ -961,8 +1077,8 @@ var possibly_switch_game_from_hash = function() { return; } - var hash = window.location.hash.replace(/^#/,''); - for (var i = 0; i < current_games.length; ++i) { + let hash = window.location.hash.replace(/^#/,''); + for (let 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]); @@ -976,14 +1092,14 @@ var possibly_switch_game_from_hash = function() { * If this is a Chess960 castling which doesn't move the king, * move the rook instead. */ -var patch_move = function(move) { +function patch_move(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; + let f = move.rook_sq & 15; + let r = move.rook_sq >> 4; + let from = ('abcdefgh'.substring(f,f+1) + '87654321'.substring(r,r+1)); + let to = move.to; if (move.to === 'g1') { to = 'f1'; @@ -1000,9 +1116,11 @@ var patch_move = function(move) { /** Update all the HTML on the page, based on current global state. */ -var update_board = function() { - var data = displayed_analysis_data || current_analysis_data; - var current_data = current_analysis_data; // Convenience alias. +function update_board() { + document.body.style.opacity = null; + + let data = displayed_analysis_data || current_analysis_data; + let current_data = current_analysis_data; // Convenience alias. display_lines = []; @@ -1010,8 +1128,8 @@ var update_board = function() { // unconditionally taken from current_data (we're not interested in // historic history). 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); + let start = (current_data['position'] && current_data['position']['start_fen']) ? current_data['position']['start_fen'] : 'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1'; + add_pv(start, current_data['position']['history'], null, 0, 8, true); } else { display_lines.push(null); } @@ -1028,7 +1146,7 @@ var update_board = function() { // The headline. Names are always fetched from current_data; // the rest can depend a bit. - var headline; + let headline; if (current_data && current_data['position']['player_w'] && current_data['position']['player_b']) { headline = current_data['position']['player_w'] + '–' + @@ -1037,51 +1155,42 @@ var update_board = function() { headline = 'Analysis'; } - // Credits, where applicable. Note that we don't want the footer to change a lot - // 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(); - } else { - $("#lomonosov").hide(); - } - // 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 "); - var movesource_a = document.createElement("a"); + document.getElementById("movesource").textContent = "Moves provided by "; + let movesource_a = document.createElement("a"); movesource_a.setAttribute("href", current_data['move_source_url']); - var movesource_text = document.createTextNode(current_data['move_source']); + let movesource_text = document.createTextNode(current_data['move_source']); movesource_a.appendChild(movesource_text); - var movesource_period = document.createTextNode("."); + let movesource_period = document.createTextNode("."); 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; + let 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. @@ -1093,27 +1202,28 @@ var update_board = function() { } } 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'; + let previous_move_num, previous_toplay; + let fen = data['position']['fen']; + if (find_toplay(fen) === 'b') { + previous_move_num = find_move_num(fen); + previous_toplay = 'w'; } else { - previous_move_num = data['position']['move_num'] - 1; - previous_toplay = 'B'; + previous_move_num = find_move_num(fen) - 1; + previous_toplay = 'b'; } last_move = format_move_with_number( data['position']['last_move'], previous_move_num, - previous_toplay == 'W'); + 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 = []; + let title_elems = []; if (data['position'] && data['position']['result']) { title_elems.push(data['position']['result']); } else if (data['score']) { @@ -1137,9 +1247,9 @@ var update_board = function() { // 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 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 }); + let position = (data['position'] && data['position']['start_fen']) ? data['position']['start_fen'] : null; + let hiddenboard = chess_from(position, current_display_line.pv, current_display_move); + let moves = hiddenboard.history({ verbose: true }); last_move = moves.pop(); highlight_from = last_move.from; highlight_to = last_move.to; @@ -1149,14 +1259,13 @@ 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(); - refutation_lines = []; + 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(); update_refutation_lines(); clear_arrows(); update_displayed_line(); @@ -1164,13 +1273,16 @@ var update_board = function() { return; } + if (clock_timer !== null) { + clearTimeout(clock_timer); + } update_clock(); // The score. if (current_display_line && !current_display_line_is_history) { - var score; + let score; if (current_display_line.scores && current_display_line.scores.length > 0) { - for (var i = 0; i < current_display_line.scores.length; ++i) { + for (let i = 0; i < current_display_line.scores.length; ++i) { if (current_display_move < current_display_line.scores[i].first_move) { break; } @@ -1178,21 +1290,19 @@ var update_board = function() { } } if (score) { - $("#score").text(format_long_score(score)); + document.getElementById("score").textContent = format_long_score(score); } else { - $("#score").text("No score for this line"); + 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']); - } else if (data['tablebase'] == 1) { - $("#searchstats").text("Tablebase result"); + document.getElementById("searchstats").textContent = data['searchstats']; } else if (data['nodes'] && data['nps'] && data['depth']) { - var stats = thousands(data['nodes']) + ' nodes, ' + thousands(data['nps']) + ' nodes/sec, depth ' + data['depth'] + ' ply'; + let stats = thousands(data['nodes']) + ' nodes, ' + thousands(data['nps']) + ' nodes/sec, depth ' + data['depth'] + ' ply'; if (data['seldepth']) { stats += ' (' + data['seldepth'] + ' selective)'; } @@ -1204,9 +1314,12 @@ var update_board = function() { } } - $("#searchstats").text(stats); + document.getElementById("searchstats").textContent = stats; } else { - $("#searchstats").text(""); + document.getElementById("searchstats").textContent = ""; + } + if (admin_password !== null) { + document.getElementById("searchstats").innerHTML += " | <span style=\"color: red;\">ADMIN MODE (if password is right) | <a href=\"javascript:undo_move()\">Undo move</a></span>"; } // Update the board itself. @@ -1214,20 +1327,21 @@ var update_board = function() { update_displayed_line(); // Print the PV. - $("#pvtitle").text("PV:"); + document.getElementById("pvtitle").textContent = "PV:"; - 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)); + let scores = [{ first_move: -1, score: data['score'] }]; + document.getElementById("pv").replaceChildren(add_pv(data['position']['fen'], data['pv'], scores, 0)); // Update the PV arrow. clear_arrows(); + let toplay = find_toplay(data['position']['fen']); if (data['pv'].length >= 1) { - var hiddenboard = new Chess(base_fen); + let hiddenboard = new Chess(base_fen); // draw a continuation arrow as long as it's the same piece - var last_to; - for (var i = 0; i < data['pv'].length; i += 2) { - var move = patch_move(hiddenboard.move(data['pv'][i])); + let last_to; + for (let i = 0; i < data['pv'].length; i += 2) { + let move = patch_move(hiddenboard.move(data['pv'][i])); if ((i >= 2 && move.from != last_to) || interfering_arrow(move.from, move.to)) { @@ -1238,10 +1352,10 @@ var update_board = function() { 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) { + let alt_moves = find_nonstupid_moves(data, 30, toplay === 'b'); + for (let i = 1; i < alt_moves.length && i < 3; ++i) { hiddenboard = new Chess(base_fen); - var move = patch_move(hiddenboard.move(alt_moves[i])); + let move = patch_move(hiddenboard.move(alt_moves[i])); if (move !== null) { create_arrow(move.from, move.to, '#f66', 1, 10); } @@ -1250,14 +1364,11 @@ var update_board = function() { // See if all semi-reasonable moves have only one possible response. if (data['pv'].length >= 2) { - var nonstupid_moves = find_nonstupid_moves(data, 300, data['position']['toplay'] === 'B'); - 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) { + let nonstupid_moves = find_nonstupid_moves(data, 300, toplay === 'b'); + let hiddenboard = new Chess(base_fen); + hiddenboard.move(data['pv'][0]); + let response = hiddenboard.move(data['pv'][1]); + for (let i = 0; i < nonstupid_moves.length; ++i) { if (nonstupid_moves[i] == data['pv'][0]) { // ignore the PV move for refutation lines. continue; @@ -1270,10 +1381,15 @@ var update_board = function() { response = undefined; break; } - var line = data['refutation_lines'][nonstupid_moves[i]]; + let 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]); + let 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; @@ -1286,49 +1402,44 @@ var update_board = function() { } } - // Update the refutation lines. base_fen = data['position']['fen']; - move_num = parseInt(data['position']['move_num']); - toplay = data['position']['toplay']; - refutation_lines = hash_refutation_lines || data['refutation_lines']; update_refutation_lines(); // Update the sparkline last, since its size depends on how everything else reflowed. update_sparkline(data); } -var update_sparkline = function(data) { +function update_sparkline(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']) { + let first_move_num = undefined; + for (let halfmove_num in data['score_history']) { halfmove_num = parseInt(halfmove_num); if (first_move_num === undefined || halfmove_num < first_move_num) { first_move_num = halfmove_num; } } if (first_move_num !== undefined) { - var last_move_num = data['position']['move_num'] * 2 - 3; - if (data['position']['toplay'] === 'B') { + let fen = data['position']['fen']; + let last_move_num = find_move_num(fen) * 2 - 3; + if (find_toplay(fen) === 'b') { ++last_move_num; } // 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; + let 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 last_score = null; - var scores = []; - for (var halfmove_num = first_move_num; halfmove_num <= last_move_num; ++halfmove_num) { + let min_score = -1; + let max_score = 1; + let last_score = null; + let scores = []; + for (let halfmove_num = first_move_num; halfmove_num <= last_move_num; ++halfmove_num) { if (data['score_history'][halfmove_num]) { - var score = compute_plot_score(data['score_history'][halfmove_num]); + let score = compute_plot_score(data['score_history'][halfmove_num]); last_score = score; if (score < min_score) min_score = score; if (score > max_score) max_score = score; @@ -1336,84 +1447,144 @@ var update_sparkline = function(data) { scores.push(last_score); } if (data['score']) { - scores.push(compute_plot_score(data['score'])); + let score = compute_plot_score(data['score']); + scores.push(score); + if (score < min_score) min_score = score; + if (score > max_score) max_score = score; } - // 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) { - // 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); + if (max_score - min_score < 100) { + if (Math.abs(max_score) >= Math.abs(min_score)) { + max_score = min_score + 100; + } else { + min_score = max_score - 100; } - }); - $('#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); + } + + 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); + 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 + 1); + } else { + color = [1.0, 0.267, 0.267]; + rect.setAttributeNS(null, 'y', base_y); + rect.setAttributeNS(null, 'height', -extent + 1); + } + 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) => { hide_hover(e, color); show_line(0, i + first_move_num - 1) }); + scorespark.appendChild(rect); + } } - } else { - $("#scorespark").text(""); } } +function draw_hover(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'; + +} +function hide_hover(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) { +function update_num_viewers(num_viewers) { + let 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) { + let 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); +function update_clock() { + clock_timer = null; - var data = displayed_analysis_data || current_analysis_data; + let data = displayed_analysis_data || current_analysis_data; if (!data) return; if (data['position']) { - var result = data['position']['result']; + let 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; + let white_clock_ms = null; + let black_clock_ms = null; // Static clocks. if (data['position'] && @@ -1424,22 +1595,22 @@ var update_clock = function() { } // Dynamic clock (only one, obviously). - var color; + let 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; + let remaining_ms; if (color) { - var now = new Date().getTime() + client_clock_offset_ms; + let now = new Date().getTime() + client_clock_offset_ms; remaining_ms = data['position'][color + '_clock_target'] * 1000 - now; if (color === "white") { white_clock_ms = remaining_ms; @@ -1449,18 +1620,18 @@ 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 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); + let show_seconds = (white_clock_ms < 60 * 20 * 1000 || black_clock_ms < 60 * 20 * 1000); - if (color) { + if (color && remaining_ms > 0) { // See when the clock will change next, and update right after that. - var next_update_ms; + let next_update_ms; if (show_seconds) { next_update_ms = remaining_ms % 1000 + 100; } else { @@ -1469,15 +1640,15 @@ 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); } /** - * @param {Number} remaining_ms + * @param {number} remaining_ms * @param {boolean} show_seconds */ -var format_clock = function(remaining_ms, show_seconds) { +function format_clock(remaining_ms, show_seconds) { if (remaining_ms <= 0) { if (show_seconds) { return "00:00:00"; @@ -1486,12 +1657,12 @@ var format_clock = function(remaining_ms, show_seconds) { } } - var remaining = Math.floor(remaining_ms / 1000); - var seconds = remaining % 60; + let remaining = Math.floor(remaining_ms / 1000); + let seconds = remaining % 60; remaining = (remaining - seconds) / 60; - var minutes = remaining % 60; + let minutes = remaining % 60; remaining = (remaining - minutes) / 60; - var hours = remaining; + let hours = remaining; if (show_seconds) { return format_2d(hours) + ":" + format_2d(minutes) + ":" + format_2d(seconds); } else { @@ -1500,9 +1671,9 @@ var format_clock = function(remaining_ms, show_seconds) { } /** - * @param {Number} x + * @param {number} x */ -var format_2d = function(x) { +function format_2d(x) { if (x >= 10) { return x; } else { @@ -1512,11 +1683,11 @@ var format_2d = function(x) { /** * @param {string} move - * @param {Number} move_num Move number of this move. + * @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; +function format_move_with_number(move, move_num, white_to_play) { + let ret; if (white_to_play) { ret = move_num + '. '; } else { @@ -1528,10 +1699,10 @@ var format_move_with_number = function(move, move_num, white_to_play) { /** * @param {string} move - * @param {Number} halfmove_num Half-move number that is to be played, + * @param {number} halfmove_num Half-move number that is to be played, * starting from 0. */ -var format_halfmove_with_number = function(move, halfmove_num) { +function format_halfmove_with_number(move, halfmove_num) { return format_move_with_number( move, Math.floor(halfmove_num / 2) + 1, @@ -1540,15 +1711,15 @@ var format_halfmove_with_number = function(move, halfmove_num) { /** * @param {Object} data - * @param {Number} halfmove_num + * @param {number} halfmove_num */ -var format_tooltip = function(data, halfmove_num) { +function format_tooltip(data, halfmove_num) { 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; + let move; + let short_score; if ((halfmove_num + 1) === data['position']['history'].length) { move = data['position']['last_move']; short_score = format_short_score(data['score']); @@ -1559,13 +1730,13 @@ var format_tooltip = function(data, halfmove_num) { if (halfmove_num === -1) { return "Start position: " + short_score; } else { - var move_with_number = format_halfmove_with_number(move, halfmove_num); + let move_with_number = format_halfmove_with_number(move, halfmove_num); return "After " + move_with_number + ": " + short_score; } } else { - for (var i = halfmove_num; i --> -1; ) { + for (let i = halfmove_num; i --> -1; ) { if (data['score_history'][i]) { - var move = data['position']['history'][i]; + let move = data['position']['history'][i]; if (i === -1) { return "[Analysis kept from start position]"; } else { @@ -1576,20 +1747,11 @@ var format_tooltip = function(data, halfmove_num) { } } -/** - * @param {boolean} truncate_history - */ -var set_truncate_history = function(truncate_history) { - truncate_display_history = truncate_history; - update_refutation_lines(); -} -window['set_truncate_history'] = set_truncate_history; - /** * @param {number} line_num * @param {number} move_num */ -var show_line = function(line_num, move_num) { +function show_line(line_num, move_num) { if (line_num == -1) { current_display_line = null; current_display_move = null; @@ -1602,8 +1764,8 @@ 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_move = move_num + current_display_line.start_display_move_num; + current_display_line = {...display_lines[line_num]}; // Shallow clone. + current_display_move = move_num; } current_display_line_is_history = (line_num == 0); @@ -1615,7 +1777,7 @@ var show_line = function(line_num, move_num) { } window['show_line'] = show_line; -var prev_move = function() { +function prev_move() { if (current_display_line && current_display_move >= current_display_line.start_display_move_num) { --current_display_move; @@ -1626,7 +1788,7 @@ var prev_move = function() { } window['prev_move'] = prev_move; -var next_move = function() { +function next_move() { if (current_display_line && current_display_move < current_display_line.pv.length - 1) { ++current_display_move; @@ -1637,16 +1799,16 @@ var next_move = function() { } window['next_move'] = next_move; -var next_game = function() { +function next_game() { 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]; + for (let game_num = 0; game_num < current_games.length; ++game_num) { + let game = current_games[game_num]; if (game['url'] === backend_url) { - var next_game_num = (game_num + 1) % current_games.length; + let next_game_num = (game_num + 1) % current_games.length; switch_backend(current_games[next_game_num]); return; } @@ -1655,7 +1817,7 @@ var next_game = function() { // Couldn't find it; give up. } -var update_historic_analysis = function() { +function update_historic_analysis() { if (!current_display_line_is_history) { return; } @@ -1665,85 +1827,115 @@ var update_historic_analysis = function() { } // Fetch old analysis for this line if it exists. - var hiddenboard = chess_from(current_display_line.start_fen, current_display_line.pv, current_display_move); - var filename = "/history/move" + (current_display_move + 1) + "-" + + let hiddenboard = chess_from(current_display_line.start_fen, current_display_line.pv, current_display_move); + let 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(); + } + }); } /** * @param {string} fen */ -var update_imbalance = function(fen) { - var hiddenboard = new Chess(fen); - var imbalance = {'k': 0, 'q': 0, 'r': 0, 'b': 0, 'n': 0, 'p': 0}; - for (var row = 0; row < 8; ++row) { - for (var col = 0; col < 8; ++col) { - var col_text = String.fromCharCode('a1'.charCodeAt(0) + col); - var row_text = String.fromCharCode('a1'.charCodeAt(1) + row); - var square = col_text + row_text; - var contents = hiddenboard.get(square); - if (contents !== null) { - if (contents.color === 'w') { - ++imbalance[contents.type]; - } else { - --imbalance[contents.type]; - } - } +function update_imbalance(fen) { + let imbalance = {'k': 0, 'q': 0, 'r': 0, 'b': 0, 'n': 0, 'p': 0}; + for (const c of fen) { + if (c === ' ') { + // End of board + break; + } + if (c != c.toUpperCase()) { + --imbalance[c]; + } else if (c != c.toLowerCase()) { + ++imbalance[c.toLowerCase()]; + } + } + + let white_imbalance = document.getElementById('whiteimbalance'); + let black_imbalance = document.getElementById('blackimbalance'); + white_imbalance.textContent = ''; + black_imbalance.textContent = ''; + for (let piece in imbalance) { + for (let i = 0; i < imbalance[piece]; ++i) { + let i1 = document.createElement('img'); + i1.src = svg_pieces['w' + piece.toUpperCase()]; + i1.setAttribute('alt', piece.toUpperCase()); + i1.classList.add('imbalance-piece'); + white_imbalance.appendChild(i1); + + let i2 = document.createElement('img'); + i2.src = svg_pieces['b' + piece.toUpperCase()]; + i2.setAttribute('alt', piece.toUpperCase()); + i2.classList.add('imbalance-inverted-piece'); + white_imbalance.appendChild(i2); + } + for (let i = 0; i < -imbalance[piece]; ++i) { + let i1 = document.createElement('img'); + i1.src = svg_pieces['b' + piece.toUpperCase()]; + i1.setAttribute('alt', piece.toUpperCase()); + i1.classList.add('imbalance-piece'); + black_imbalance.appendChild(i1); + + let i2 = document.createElement('img'); + i2.src = svg_pieces['w' + piece.toUpperCase()]; + i2.setAttribute('alt', piece.toUpperCase()); + i2.classList.add('imbalance-inverted-piece'); + black_imbalance.appendChild(i2); } } - var white_imbalance = ''; - 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;">'; - } - 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;">'; - } - } - $('#whiteimbalance').html(white_imbalance); - $('#blackimbalance').html(black_imbalance); } /** Mark the currently selected move in red. * Also replaces the PV with the current displayed line if it's not shown * anywhere else on the screen. */ -var update_move_highlight = function() { +function update_move_highlight() { 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(); + let 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").replaceChildren(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); + if (highlighted_move !== null) { + highlighted_move.classList.add('highlight'); + } } } @@ -1754,14 +1946,14 @@ var update_move_highlight = function() { * * @return {?number} */ -var find_display_line_matching_num = function() { - for (var i = 0; i < display_lines.length; ++i) { - var line = display_lines[i]; +function find_display_line_matching_num() { + for (let i = 0; i < display_lines.length; ++i) { + let 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.pv.length !== line.pv.length) continue; - var ok = true; - for (var j = 0; j < line.pv.length; ++j) { + let ok = true; + for (let j = 0; j < line.pv.length; ++j) { if (current_display_line.pv[j] !== line.pv[j]) { ok = false; break; @@ -1779,31 +1971,31 @@ var find_display_line_matching_num = function() { * TODO: This should really be called only whenever something changes, * instead of all the time. */ -var update_displayed_line = function() { +function update_displayed_line() { 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; 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").textContent = "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.pv.length - 1) { - $("#nextmove").html("Next"); + document.getElementById("nextmove").textContent = "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.pv, current_display_move); + let 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 @@ -1814,10 +2006,11 @@ var update_displayed_line = function() { update_imbalance(hiddenboard.fen()); } -var set_board_position = function(new_fen) { +function set_board_position(new_fen) { board_is_animating = true; - var old_fen = board.fen(); - board.position(new_fen); + let old_fen = board.fen(); + let animate = old_fen !== '8/8/8/8/8/8/8/'; + board.position(new_fen, animate); if (board.fen() === old_fen) { board_is_animating = false; } @@ -1826,25 +2019,25 @@ var set_board_position = function(new_fen) { /** * @param {boolean} param_enable_sound */ -var set_sound = function(param_enable_sound) { +function set_sound(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. - var ding = document.getElementById('ding'); + let ding = document.getElementById('ding'); if (ding && ding.canPlayType && ding.canPlayType('audio/ogg; codecs="opus"') === 'probably') { ding.src = 'ding.opus'; 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; @@ -1852,7 +2045,7 @@ window['set_sound'] = set_sound; /** Send off a hash probe request to the backend. * @param {string} fen */ -var explore_hash = function(fen) { +function explore_hash(fen) { // If we already have a backend response going, abort it. if (current_hash_xhr) { current_hash_xhr.abort(); @@ -1861,19 +2054,25 @@ 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); }) + .catch((err) => { + // Truncate the lines, since we already cleared the display. + display_lines = [ display_lines[0], display_lines[1] ]; + update_move_highlight(); + }); } /** Process the JSON response from a hash probe request. * @param {!Object} data * @param {string} fen */ -var show_explore_hash_results = function(data, fen) { +function show_explore_hash_results(data, fen) { if (board_is_animating) { // Updating while the animation is still going causes // the animation to jerk. This is pretty crude, but it will do. @@ -1882,12 +2081,13 @@ var show_explore_hash_results = function(data, fen) { } current_hash_display_timer = null; hash_refutation_lines = data['lines']; + hash_refutation_lines_base_fen = fen; update_board(); } // almost all of this stuff comes from the chessboard.js example page -var onDragStart = function(source, piece, position, orientation) { - var pseudogame = new Chess(display_fen); +function onDragStart(source, piece, position, orientation) { + let pseudogame = new Chess(display_fen); if (pseudogame.game_over() === true || (pseudogame.turn() === 'w' && piece.search(/^b/) !== -1) || (pseudogame.turn() === 'b' && piece.search(/^w/) !== -1)) { @@ -1896,53 +2096,62 @@ 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'); + let squareEl = document.querySelector('#board .square-' + recommended_move.to); + squareEl.classList.add('highlight1-32417'); } return true; } -var mousedownSquare = function(e) { +function mousedownSquare(e) { + if (!e.target || !e.target.getAttribute('data-square')) { + return; + } + reverse_dragging_from = null; - var square = $(this).attr('data-square'); + let square = e.target.getAttribute('data-square'); - var pseudogame = new Chess(display_fen); + let pseudogame = new Chess(display_fen); if (pseudogame.game_over() === true) { return; } // If the square is empty, or has a piece of the side not to move, // we handle it. If not, normal piece dragging will take it. - var position = board.position(); + let position = board.position(); if (!position.hasOwnProperty(square) || (pseudogame.turn() === 'w' && position[square].search(/^b/) !== -1) || (pseudogame.turn() === 'b' && position[square].search(/^w/) !== -1)) { 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'); + let 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) { +function mouseupSquare(e) { + if (!e.target || !e.target.getAttribute('data-square')) { + return; + } if (reverse_dragging_from === null) { return; } - var source = $(this).attr('data-square'); - var target = reverse_dragging_from; + let source = e.target.getAttribute('data-square'); + let 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) { - var moves = game.moves({ verbose: true }); +function get_best_move(game, source, target, invert) { + let moves = game.moves({ verbose: true }); if (source !== null) { moves = moves.filter(function(move) { return move.from == source; }); } @@ -1958,40 +2167,41 @@ var get_best_move = function(game, source, target, invert) { // More than one move. Use the display lines (if we have them) // to disambiguate; otherwise, we have no information. - var move_hash = {}; - for (var i = 0; i < moves.length; ++i) { + let move_hash = {}; + for (let i = 0; i < moves.length; ++i) { 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]; + let 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.pv[line.start_display_move_num]; + for (let i = 0; i < 2; ++i) { + let line = display_lines[i]; + let first_move = line.pv[line.start_display_move_num]; if (move_hash[first_move]) { return move_hash[first_move]; } } - var best_move = null; - var best_move_score = null; + let best_move = null; + let best_move_score = null; - for (var move in refutation_lines) { - var line = refutation_lines[move]; + let refutation_lines = choose_displayed_refutation_lines()[0]; + for (let move in refutation_lines) { + let line = refutation_lines[move]; if (!line['score']) { continue; } - var first_move = line['pv'][0]; + let first_move = line['pv'][0]; if (move_hash[first_move]) { - var score = compute_score_sort_key(line['score'], line['depth'], invert); + let 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; @@ -2001,7 +2211,7 @@ var get_best_move = function(game, source, target, invert) { return best_move; } -var onDrop = function(source, target) { +function onDrop(source, target) { if (source === target) { if (recommended_move === null) { return 'snapback'; @@ -2015,8 +2225,8 @@ var onDrop = function(source, target) { } // see if the move is legal - var pseudogame = new Chess(display_fen); - var move = pseudogame.move({ + let pseudogame = new Chess(display_fen); + let move = pseudogame.move({ from: source, to: target, promotion: 'q' // NOTE: always promote to a queen for example simplicity @@ -2026,19 +2236,71 @@ var onDrop = function(source, target) { if (move === null) return 'snapback'; } -var onSnapEnd = function(source, target) { +/** + * If we are in admin mode, send this move to the backend. + * + * @param {string} fen + * @param {string} move + */ +function send_chosen_move(fen, move) { + if (admin_password !== null) { + let history = current_analysis_data['position']['history']; + let url = '/manual-override.pl'; + url += '?fen=' + encodeURIComponent(fen); + url += '&history=' + encodeURIComponent(JSON.stringify(history)); + url += '&move=' + encodeURIComponent(move); + url += '&player_w=' + encodeURIComponent(current_analysis_data['position']['player_w']); + url += '&player_b=' + encodeURIComponent(current_analysis_data['position']['player_b']); + url += '&password=' + encodeURIComponent(admin_password); + + console.log(fen, history); + fetch(url); // Ignore the result. + } +} + +function undo_move() { + if (admin_password !== null) { + let history = current_analysis_data['position']['history']; + history = history.slice(0, history.length - 1); + + let position = current_analysis_data['position']['start_fen']; + let hiddenboard = chess_from(position, history, history.length); + let fen = hiddenboard.fen(); + + let url = '/manual-override.pl'; + url += '?fen=' + encodeURIComponent(fen); + url += '&history=' + encodeURIComponent(JSON.stringify(history)); + url += '&move=null'; + url += '&player_w=' + encodeURIComponent(current_analysis_data['position']['player_w']); + url += '&player_b=' + encodeURIComponent(current_analysis_data['position']['player_b']); + url += '&password=' + encodeURIComponent(admin_password); + + console.log(fen, history); + fetch(url); // Ignore the result. + } +} +window['undo_move'] = undo_move; + +function onSnapEnd(source, target) { if (source === target && recommended_move !== null) { source = recommended_move.from; target = recommended_move.to; } recommended_move = null; - var pseudogame = new Chess(display_fen); - var move = pseudogame.move({ + let pseudogame = new Chess(display_fen); + let move = pseudogame.move({ from: source, to: target, promotion: 'q' // NOTE: always promote to a queen for example simplicity }); + if (admin_password !== null) { + send_chosen_move(display_fen, move.san); + return; + } + + // Move ahead on the line we're on -- this includes history if we've + // gone backwards. if (current_display_line && current_display_move < current_display_line.pv.length - 1 && current_display_line.pv[current_display_move + 1] === move.san) { @@ -2048,25 +2310,29 @@ var onSnapEnd = function(source, target) { // Walk down the displayed lines until we find one that starts with // 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) { + // order (PV, then multi-PV lines; history was already dealt with above, + // as it's the only line that originates backwards). + for (let i = 1; 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]; + let line = display_lines[i]; if (line.pv[line.start_display_move_num] === move.san) { - show_line(i, 0); + show_line(i, line.start_display_move_num); return; } } // Shouldn't really be here if we have hash probes, but there's really // nothing we can do. + // FIXME: Just make a new line, probably (even if we don't have hash moves). + // As it is, we can actually drag (but not click) such a move in the UI, + // but it has no effect on what we're probing. } // End of dragging-related code. -var fmt_cp = function(v) { +function fmt_cp(v) { if (v === 0) { return "0.00"; } else if (v > 0) { @@ -2077,18 +2343,29 @@ var fmt_cp = function(v) { } } -var format_short_score = function(score) { +function format_short_score(score) { if (!score) { return "???"; } - if (score[0] === 'm') { + if (score[0] === 'T' || score[0] === 't') { + let 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') { + let 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]); @@ -2099,15 +2376,33 @@ var format_short_score = function(score) { return null; } -var format_long_score = function(score) { +function format_long_score(score) { if (!score) { return "???"; } - if (score[0] === 'm') { - if (score[1] > 0) { + 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"; @@ -2117,13 +2412,11 @@ var format_long_score = function(score) { return null; } -var compute_plot_score = function(score) { - if (score[0] === 'm') { - if (score[1] > 0) { - return 500; - } else { - return -500; - } +function compute_plot_score(score) { + 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') { @@ -2142,22 +2435,25 @@ 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, depth_secondary_key) { - var s; +function compute_score_sort_key(score, depth, invert) { + let 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') { @@ -2165,11 +2461,7 @@ var compute_score_sort_key = function(score, depth, invert, depth_secondary_key) } if (s) { if (invert) s = -s; - if (depth_secondary_key) { - return s * 200 + (depth || 0); - } else { - return s; - } + return s; } else { return null; } @@ -2178,7 +2470,7 @@ var compute_score_sort_key = function(score, depth, invert, depth_secondary_key) /** * @param {Object} game */ -var switch_backend = function(game) { +function switch_backend(game) { // Stop looking at historic data. current_display_line = null; current_display_move = null; @@ -2217,43 +2509,79 @@ var switch_backend = function(game) { 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,<?xml version=%221.0%22 encoding=%22UTF-8%22 standalone=%22no%22?>%0A<!DOCTYPE svg PUBLIC %22-//W3C//DTD SVG 1.1//EN%22 %22http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd%22>%0A<svg xmlns=%22http://www.w3.org/2000/svg%22 version=%221.1%22 width=%2245%22 height=%2245%22><g style=%22fill:none;fill-opacity:1;fill-rule:evenodd;stroke:%23000000;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1%22><path d=%22M 22.5,11.63 L 22.5,6%22 style=%22fill:none;stroke:%23000000;stroke-linejoin:miter%22/><path d=%22M 20,8 L 25,8%22 style=%22fill:none;stroke:%23000000;stroke-linejoin:miter%22/><path d=%22M 22.5,25 C 22.5,25 27,17.5 25.5,14.5 C 25.5,14.5 24.5,12 22.5,12 C 20.5,12 19.5,14.5 19.5,14.5 C 18,17.5 22.5,25 22.5,25%22 style=%22fill:%23ffffff;stroke:%23000000;stroke-linecap:butt;stroke-linejoin:miter%22/><path d=%22M 11.5,37 C 17,40.5 27,40.5 32.5,37 L 32.5,30 C 32.5,30 41.5,25.5 38.5,19.5 C 34.5,13 25,16 22.5,23.5 L 22.5,27 L 22.5,23.5 C 19,16 9.5,13 6.5,19.5 C 3.5,25.5 11.5,29.5 11.5,29.5 L 11.5,37 z %22 style=%22fill:%23ffffff;stroke:%23000000%22/><path d=%22M 11.5,30 C 17,27 27,27 32.5,30%22 style=%22fill:none;stroke:%23000000%22/><path d=%22M 11.5,33.5 C 17,30.5 27,30.5 32.5,33.5%22 style=%22fill:none;stroke:%23000000%22/><path d=%22M 11.5,37 C 17,34 27,34 32.5,37%22 style=%22fill:none;stroke:%23000000%22/></g></svg>', + 'wQ': 'data:image/svg+xml,<?xml version=%221.0%22 encoding=%22UTF-8%22 standalone=%22no%22?>%0A<!DOCTYPE svg PUBLIC %22-//W3C//DTD SVG 1.1//EN%22 %22http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd%22>%0A<svg xmlns=%22http://www.w3.org/2000/svg%22 version=%221.1%22 width=%2245%22 height=%2245%22><g style=%22fill:%23ffffff;stroke:%23000000;stroke-width:1.5;stroke-linejoin:round%22><path d=%22M 9,26 C 17.5,24.5 30,24.5 36,26 L 38.5,13.5 L 31,25 L 30.7,10.9 L 25.5,24.5 L 22.5,10 L 19.5,24.5 L 14.3,10.9 L 14,25 L 6.5,13.5 L 9,26 z%22/><path d=%22M 9,26 C 9,28 10.5,28 11.5,30 C 12.5,31.5 12.5,31 12,33.5 C 10.5,34.5 11,36 11,36 C 9.5,37.5 11,38.5 11,38.5 C 17.5,39.5 27.5,39.5 34,38.5 C 34,38.5 35.5,37.5 34,36 C 34,36 34.5,34.5 33,33.5 C 32.5,31 32.5,31.5 33.5,30 C 34.5,28 36,28 36,26 C 27.5,24.5 17.5,24.5 9,26 z%22/><path d=%22M 11.5,30 C 15,29 30,29 33.5,30%22 style=%22fill:none%22/><path d=%22M 12,33.5 C 18,32.5 27,32.5 33,33.5%22 style=%22fill:none%22/><circle cx=%226%22 cy=%2212%22 r=%222%22/><circle cx=%2214%22 cy=%229%22 r=%222%22/><circle cx=%2222.5%22 cy=%228%22 r=%222%22/><circle cx=%2231%22 cy=%229%22 r=%222%22/><circle cx=%2239%22 cy=%2212%22 r=%222%22/></g></svg>', + 'wR': 'data:image/svg+xml,<?xml version=%221.0%22 encoding=%22UTF-8%22 standalone=%22no%22?>%0A<!DOCTYPE svg PUBLIC %22-//W3C//DTD SVG 1.1//EN%22 %22http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd%22>%0A<svg xmlns=%22http://www.w3.org/2000/svg%22 version=%221.1%22 width=%2245%22 height=%2245%22><g style=%22opacity:1;fill:%23ffffff;fill-opacity:1;fill-rule:evenodd;stroke:%23000000;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1%22 transform=%22translate(0,0.3)%22><path d=%22M 9,39 L 36,39 L 36,36 L 9,36 L 9,39 z %22 style=%22stroke-linecap:butt%22/><path d=%22M 12,36 L 12,32 L 33,32 L 33,36 L 12,36 z %22 style=%22stroke-linecap:butt%22/><path d=%22M 11,14 L 11,9 L 15,9 L 15,11 L 20,11 L 20,9 L 25,9 L 25,11 L 30,11 L 30,9 L 34,9 L 34,14%22 style=%22stroke-linecap:butt%22/><path d=%22M 34,14 L 31,17 L 14,17 L 11,14%22/><path d=%22M 31,17 L 31,29.5 L 14,29.5 L 14,17%22 style=%22stroke-linecap:butt;stroke-linejoin:miter%22/><path d=%22M 31,29.5 L 32.5,32 L 12.5,32 L 14,29.5%22/><path d=%22M 11,14 L 34,14%22 style=%22fill:none;stroke:%23000000;stroke-linejoin:miter%22/></g></svg>', + 'wB': 'data:image/svg+xml,<?xml version=%221.0%22 encoding=%22UTF-8%22 standalone=%22no%22?>%0A<!DOCTYPE svg PUBLIC %22-//W3C//DTD SVG 1.1//EN%22 %22http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd%22>%0A<svg xmlns=%22http://www.w3.org/2000/svg%22 version=%221.1%22 width=%2245%22 height=%2245%22><g style=%22opacity:1;fill:none;fill-rule:evenodd;fill-opacity:1;stroke:%23000000;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1%22 transform=%22translate(0,0.6)%22><g style=%22fill:%23ffffff;stroke:%23000000;stroke-linecap:butt%22><path d=%22M 9,36 C 12.39,35.03 19.11,36.43 22.5,34 C 25.89,36.43 32.61,35.03 36,36 C 36,36 37.65,36.54 39,38 C 38.32,38.97 37.35,38.99 36,38.5 C 32.61,37.53 25.89,38.96 22.5,37.5 C 19.11,38.96 12.39,37.53 9,38.5 C 7.65,38.99 6.68,38.97 6,38 C 7.35,36.54 9,36 9,36 z%22/><path d=%22M 15,32 C 17.5,34.5 27.5,34.5 30,32 C 30.5,30.5 30,30 30,30 C 30,27.5 27.5,26 27.5,26 C 33,24.5 33.5,14.5 22.5,10.5 C 11.5,14.5 12,24.5 17.5,26 C 17.5,26 15,27.5 15,30 C 15,30 14.5,30.5 15,32 z%22/><path d=%22M 25 8 A 2.5 2.5 0 1 1 20,8 A 2.5 2.5 0 1 1 25 8 z%22/></g><path d=%22M 17.5,26 L 27.5,26 M 15,30 L 30,30 M 22.5,15.5 L 22.5,20.5 M 20,18 L 25,18%22 style=%22fill:none;stroke:%23000000;stroke-linejoin:miter%22/></g></svg>', + 'wN': 'data:image/svg+xml,<?xml version=%221.0%22 encoding=%22UTF-8%22 standalone=%22no%22?>%0A<!DOCTYPE svg PUBLIC %22-//W3C//DTD SVG 1.1//EN%22 %22http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd%22>%0A<svg xmlns=%22http://www.w3.org/2000/svg%22 version=%221.1%22 width=%2245%22 height=%2245%22><g style=%22opacity:1;fill:none;fill-opacity:1;fill-rule:evenodd;stroke:%23000000;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1%22 transform=%22translate(0,0.3)%22><path d=%22M 22,10 C 32.5,11 38.5,18 38,39 L 15,39 C 15,30 25,32.5 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set_sound(false); } + let admin_match = window.location.href.match(/\?password=([a-zA-Z0-9_-]+)/); + if (admin_match !== null) { + admin_password = admin_match[1]; + } + // 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); + if (window['inline_json']) { + let j = window['inline_json']; + process_update_response(j['data'], { 'get': (h) => j['headers'][h] }); + delete window['inline_json']; + } request_update(); - $(window).resize(function() { + window.addEventListener('resize', function() { board.resize(); update_sparkline(displayed_analysis_data || current_analysis_data); update_board_highlight(); redraw_arrows(); }); - $(window).keyup(function(event) { + new ResizeObserver(() => update_sparkline(displayed_analysis_data || current_analysis_data)).observe(document.getElementById('scoresparkcontainer')); + window.addEventListener('keyup', function(event) { if (event.which == 39) { // Left arrow. next_move(); } else if (event.which == 37) { // Right arrow. prev_move(); } else if (event.which >= 49 && event.which <= 57) { // 1-9. - var num = event.which - 49; + let num = event.which - 49; if (current_games && current_games.length >= num) { switch_backend(current_games[num]); } @@ -2264,6 +2592,6 @@ var init = function() { window.addEventListener('hashchange', possibly_switch_game_from_hash, false); possibly_switch_game_from_hash(); }; -$(document).ready(init); +document.addEventListener('DOMContentLoaded', init); })();