(function() {
+'use strict';
/**
* Version of this script. If the server returns a version larger than
* @type {Number}
* @const
* @private */
-var SCRIPT_VERSION = 2016032201;
+let SCRIPT_VERSION = 2021021300;
/**
* The current backend URL.
* @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
*
* @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,
* @type {?Object}
* @private
*/
-var displayed_analysis_data = null;
+let displayed_analysis_data = null;
/**
* Games currently in progress, if any.
* @type {?Array.<{
* name: string,
* url: string,
+ * hashurl: string,
* id: string,
- * score: =Object,
- * result: =string,
+ * score: Object=,
+ * result: string=,
* }>}
* @private
*/
-var current_games = null;
+let current_games = null;
/** @type {Array.<{
* from_col: number,
* }>}
* @private
*/
-var arrows = [];
+let arrows = [];
/** @type {Array.<Array.<boolean>>} */
-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.
*/
-var refutation_lines = [];
+let refutation_lines = [];
/** 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.
*/
-var hash_refutation_lines = null;
+let hash_refutation_lines = null;
/** @type {!number} @private */
-var move_num = 1;
+let move_num = 1;
/** @type {!string} @private */
-var toplay = 'W';
+let toplay = 'W';
/** @type {number} @private */
-var ims = 0;
+let ims = 0;
/** @type {boolean} @private */
-var sort_refutation_lines_by_score = true;
-
-/** @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 {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
* @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,
- * pretty_pv: Array.<string>,
+ * pv: Array.<string>,
* move_num: number,
* toplay: string,
* scores: Array<{first_move: number, score: Object}>,
* @type {Array.<DisplayLine>}
* @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;
+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),
* @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
* @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) {
// 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);
+ };
+
+ current_analysis_xhr = new AbortController();
+ const signal = current_analysis_xhr.signal;
+ fetch(backend_url + "?ims=" + ims + "&unique=" + unique, { signal })
+ .then((response) => response.json().then(data => ({ok: response.ok, headers: response.headers, json: data}))) // ick
+ .then((obj) => {
+ if (!obj.ok) {
+ handle_err();
+ return;
+ }
+
+ if (delay_ms === 0) {
+ process_update_response(obj.json, obj.headers);
+ } else {
+ setTimeout(function() { process_update_response(obj.json, obj.headers); }, delay_ms);
+ }
+
+ // Next update.
+ if (!backend_url.match(/history/)) {
+ 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;
+ })
+
+}
+
+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);
+ }
- var minimum_version = xhr.getResponseHeader('X-RGMV');
- if (minimum_version && minimum_version > SCRIPT_VERSION) {
- // Upgrade to latest version with a force-reload.
- location.reload(true);
+ // Verify that the PV makes sense.
+ 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);
-
- // Next update.
- current_analysis_request_timer = setTimeout(function() { request_update(); }, 100);
- }).fail(function(jqXHR, textStatus, errorThrown) {
- if (textStatus === "abort") {
- // Aborted because we are switching backends. Abandon and don't retry,
- // because another one is already started for us.
- } else {
- // Backend error or similar. Wait ten seconds, then try again.
- current_analysis_request_timer = setTimeout(function() { request_update(); }, 10000);
- }
- });
+ } else {
+ console.log("Received invalid update, waiting five seconds and trying again.");
+ setTimeout(function() { location.reload(true); }, 5000);
+ }
}
-var possibly_play_sound = function(old_data, new_data) {
+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'] &&
/**
* @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
}
}
-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 {!number} x
* @return {!number}
*/
-var sign = function(x) {
+function sign(x) {
if (x > 0) {
return 1;
} else if (x < 0) {
* @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;
}
// 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;
* @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;
}
* @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);
return;
}
- var pos = $(".square-a8").position();
-
- var zoom_factor = $("#board").width() / 400.0;
- var line_width = arrow.line_width * zoom_factor;
- var arrow_size = arrow.arrow_size * zoom_factor;
-
- var square_width = $(".square-a8").width();
- var from_y = (7 - arrow.from_row + 0.5)*square_width;
- var to_y = (7 - arrow.to_row + 0.5)*square_width;
- var from_x = (arrow.from_col + 0.5)*square_width;
- var to_x = (arrow.to_col + 0.5)*square_width;
+ // We always draw as if the board is 400x400, the viewBox will adjust that for us
+ let line_width = arrow.line_width;
+ let arrow_size = arrow.arrow_size;
- var SVG_NS = "http://www.w3.org/2000/svg";
- var XHTML_NS = "http://www.w3.org/1999/xhtml";
- var svg = document.createElementNS(SVG_NS, "svg");
- svg.setAttribute("width", /** @type{number} */ ($("#board").width()));
- svg.setAttribute("height", /** @type{number} */ ($("#board").height()));
- svg.setAttribute("style", "position: absolute");
- svg.setAttribute("position", "absolute");
+ let square_width = 400 / 8;
+ let from_y, to_y, from_x, to_x;
+ if (board.orientation() === 'black') {
+ from_y = (arrow.from_row + 0.5)*square_width;
+ to_y = (arrow.to_row + 0.5)*square_width;
+ from_x = (7 - arrow.from_col + 0.5)*square_width;
+ to_x = (7 - arrow.to_col + 0.5)*square_width;
+ } else {
+ from_y = (7 - arrow.from_row + 0.5)*square_width;
+ to_y = (7 - arrow.to_row + 0.5)*square_width;
+ from_x = (arrow.from_col + 0.5)*square_width;
+ to_x = (arrow.to_col + 0.5)*square_width;
+ }
+
+ 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");
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);
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) +
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;
}
* @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,
arrows.push(arrow);
}
-// Note: invert is ignored.
-var compare_by_sort_key = function(refutation_lines, invert, a, b) {
- var ska = refutation_lines[a]['sort_key'];
- var skb = refutation_lines[b]['sort_key'];
- if (ska < skb) return -1;
- if (ska > skb) return 1;
- return 0;
-};
-
-var compare_by_score = function(refutation_lines, invert, a, b) {
- var sa = compute_score_sort_key(refutation_lines[b]['score'], invert);
- var sb = compute_score_sort_key(refutation_lines[a]['score'], invert);
+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;
}
* @param {!Object} data
* @param {number} margin The maximum number of centipawns worse than the
* best move can be and still be included.
- * @param {boolean} margin Whether black is to play.
- * @return {Array.<string>} The UCI representation (e.g. e1g1) of all
+ * @param {boolean} invert Whether black is to play.
+ * @return {Array.<string>} 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 score = compute_score_sort_key(data['refutation_lines'][move]['score'], invert);
- if (move == data['pv_uci'][0]) {
+ 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;
}
if (best_score === undefined || score > best_score) {
best_score = score;
}
- if (!(data['refutation_lines'][move]['depth'] >= 8)) {
+ if (line['depth'] < 8) {
return [];
}
}
// 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 score = compute_score_sort_key(data['refutation_lines'][move]['score'], invert);
- if (move != data['pv_uci'][0] && best_score - score <= margin) {
+ 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) });
- moves.unshift(data['pv_uci'][0]);
+ moves.unshift(data['pv'][0]);
return moves;
}
* @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.<string>} pretty_pv
+ * @param {Array.<string>} pv
* @param {number} move_num
* @param {!string} toplay
* @param {Array<{ first_move: integer, score: Object }>} scores
* @param {number=} opt_limit
* @param {boolean=} opt_showlast
*/
-var add_pv = function(start_fen, pretty_pv, move_num, toplay, scores, start_display_move_num, opt_limit, opt_showlast) {
+function add_pv(start_fen, pv, move_num, toplay, scores, start_display_move_num, opt_limit, opt_showlast) {
display_lines.push({
start_fen: start_fen,
- pretty_pv: pretty_pv,
+ pv: pv,
move_num: parseInt(move_num),
toplay: toplay,
scores: scores,
start_display_move_num: start_display_move_num
});
- return print_pv(display_lines.length - 1, opt_limit, opt_showlast);
+ 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 pretty_pv = display_line.pretty_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 move_num = display_line.move_num;
+ let toplay = display_line.toplay;
// Truncate PV at the start if needed.
- var start_display_move_num = display_line.start_display_move_num;
+ let start_display_move_num = display_line.start_display_move_num;
if (start_display_move_num > 0) {
- pretty_pv = pretty_pv.slice(start_display_move_num);
- var to_add = start_display_move_num;
+ pv = pv.slice(start_display_move_num);
+ let to_add = start_display_move_num;
if (toplay === 'B') {
++move_num;
toplay = 'W';
--to_add;
}
move_num += to_add / 2;
+ if (splicepos !== null && splicepos > 0) {
+ --splicepos;
+ }
}
- var pv = '';
- var i = 0;
- if (opt_limit && opt_showlast && pretty_pv.length > opt_limit) {
+ let ret = document.createDocumentFragment();
+ let in_tb = false;
+ let 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.
- pv = '(<a class="move" href="javascript:collapse_history(false)">…</a>) ';
- i = pretty_pv.length - opt_limit;
+ 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(') '));
+ i = pv.length - opt_limit;
if (i % 2 == 1) {
++i;
}
move_num += i / 2;
- } else if (toplay == 'B' && pretty_pv.length > 0) {
- var move = "<a class=\"move\" id=\"automove" + line_num + "-0\" href=\"javascript:show_line(" + line_num + ", " + 0 + ");\">" + pretty_pv[0] + "</a>";
- pv = move_num + '. … ' + move;
- toplay = 'W';
- ++i;
- ++move_num;
- }
- for ( ; i < pretty_pv.length; ++i) {
- var move = "<a class=\"move\" id=\"automove" + line_num + "-" + i + "\" href=\"javascript:show_line(" + line_num + ", " + i + ");\">" + pretty_pv[i] + "</a>";
+ } else if (toplay == 'B' && pv.length > 0) {
+ ret.appendChild(document.createTextNode(move_num + '. … '));
+ }
+ for (; i < pv.length; ++i) {
+ let prefix = '';
+ if (splicepos === i) {
+ prefix = '(TB: ';
+ in_tb = true;
+ }
- if (toplay == 'W') {
+ if (toplay == 'B' && i == 0) {
+ ++move_num;
+ toplay = 'W';
+ } else if (toplay == 'W') {
if (i > opt_limit && !opt_showlast) {
- return pv + ' (…)';
- }
- if (pv != '') {
- pv += ' ';
+ if (in_tb) {
+ prefix += ')';
+ }
+ ret.appendChild(document.createTextNode(prefix + ' (…)'));
+ return ret;
}
- pv += move_num + '. ' + move;
+ prefix += ' ' + move_num + '. ';
++move_num;
toplay = 'B';
} else {
- pv += ' ' + move;
+ prefix += ' ';
toplay = 'W';
}
+ ret.appendChild(document.createTextNode(prefix));
+
+ let link = document.createElement('a');
+ link.className = 'move';
+ link.setAttribute('id', 'automove' + line_num + '-' + i);
+ link.textContent = pv[i];
+ link.href = 'javascript:show_line(' + line_num + ', ' + i + ');';
+ ret.appendChild(link);
+ }
+ if (in_tb) {
+ ret.appendChild(document.createTextNode(')'));
}
- return pv;
+ 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() {
- if (display_lines[0] === null || display_lines[0].pretty_pv.length == 0) {
- $("#history").html("No history");
+function update_history() {
+ let history = document.getElementById('history');
+ if (display_lines[0] === null || display_lines[0].pv.length == 0) {
+ 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(
- '(<a class="move" href="javascript:collapse_history(true)">collapse</a>) ' +
- 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));
}
}
/**
* @param {!boolean} truncate_history
*/
-var collapse_history = function(truncate_history) {
+function collapse_history(truncate_history) {
truncate_display_history = truncate_history;
update_history();
}
*
* Also recreates the global "display_lines".
*/
-var update_refutation_lines = function() {
+function update_refutation_lines() {
if (base_fen === null) {
return;
}
// 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 = [];
- 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.pretty_pv.slice(0, current_display_move + 1);
+ base_line = current_display_line.pv.slice(0, current_display_move + 1);
base_scores = current_display_line.scores;
start_display_move_num = base_line.length;
}
- var moves = [];
- for (var move in refutation_lines) {
+ let moves = [];
+ for (let move in refutation_lines) {
moves.push(move);
}
- var invert = (toplay === 'B');
- if (current_display_line && current_display_move % 2 == 0) {
+ let invert = (toplay === 'B');
+ if (current_display_line && current_display_move % 2 == 0 && !current_display_line_is_history) {
invert = !invert;
}
- var compare = sort_refutation_lines_by_score ? compare_by_score : compare_by_sort_key;
- moves = moves.sort(function(a, b) { return compare(refutation_lines, invert, a, b) });
- for (var i = 0; i < moves.length; ++i) {
- var line = refutation_lines[moves[i]];
+ moves = moves.sort(function(a, b) { return compare_by_score(refutation_lines, invert, a, b) });
+ 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_pretty'].length == 0) {
+ if (line['pv'].length == 0) {
// Not found, so just make a one-move PV.
- var move = "<a class=\"move\" href=\"javascript:show_line(" + display_lines.length + ", " + 0 + ");\">" + line['pretty_move'] + "</a>";
- $(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['pretty_move'] ]), move_num, toplay, scores, start_display_move_num));
+ pv_td.classList.add("pv");
+ pv_td.append(add_pv(base_fen, base_line.concat([ line['move'] ]), move_num, toplay, scores, start_display_move_num));
tbl.append(tr);
continue;
}
- var move = "<a class=\"move\" href=\"javascript:show_line(" + display_lines.length + ", " + 0 + ");\">" + line['pretty_move'] + "</a>";
- $(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_pretty']), move_num, toplay, scores, start_display_move_num, 10));
+ pv_td.classList.add("pv");
+ pv_td.append(add_pv(base_fen, base_line.concat(line['pv']), move_num, toplay, scores, start_display_move_num, 10));
tbl.append(tr);
}
- // Make one of the links clickable and the other nonclickable.
- if (sort_refutation_lines_by_score) {
- $("#sortbyscore0").html("<a href=\"javascript:resort_refutation_lines(false)\">Move</a>");
- $("#sortbyscore1").html("<strong>Score</strong>");
- } else {
- $("#sortbyscore0").html("<strong>Move</strong>");
- $("#sortbyscore1").html("<a href=\"javascript:resort_refutation_lines(true)\">Score</a>");
- }
-
// Update the move highlight, as we've rewritten all the HTML.
update_move_highlight();
}
* @param {Array.<string>} moves
* @param {number} last_move
*/
-var chess_from = function(fen, moves, last_move) {
- var hiddenboard = new Chess();
- if (fen !== null) {
+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') {
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);
- var score;
- if (current_analysis_data['position']['result']) {
- score = " (" + current_analysis_data['position']['result'] + ")";
- } else {
- score = " (" + format_short_score(current_analysis_data['score']) + ")";
+ if (current_analysis_data && current_analysis_data['position']) {
+ let score;
+ if (current_analysis_data['position']['result']) {
+ score = " (" + current_analysis_data['position']['result'] + ")";
+ } else {
+ score = " (" + format_short_score(current_analysis_data['score']) + ")";
+ }
+ game_span.appendChild(document.createTextNode(score));
}
- game_span.appendChild(document.createTextNode(score));
} else {
// Some other game.
- var game_a = document.createElement("a");
+ 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 {
* 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() {
+function possibly_switch_game_from_hash() {
+ let history_match = window.location.hash.match(/^#history=([a-zA-Z0-9_-]+)/);
+ if (history_match !== null) {
+ let game_id = history_match[1];
+ let fake_game = {
+ url: '/history/' + game_id + '.json',
+ hashurl: '',
+ id: 'history=' + game_id
+ };
+ switch_backend(fake_game);
+ return;
+ }
+
if (current_games === null) {
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]['url'], current_games[i]['hashurl']);
+ switch_backend(current_games[i]);
}
return;
}
}
}
+/**
+ * If this is a Chess960 castling which doesn't move the king,
+ * move the rook instead.
+*/
+function patch_move(move) {
+ if (move === null) return null;
+ if (move.from !== move.to) return move;
+
+ 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';
+ } else if (move.to === 'g8') {
+ to = 'f8';
+ } else if (move.to === 'b1') {
+ to = 'c1';
+ } else if (move.to === 'b8') {
+ to = 'c8';
+ }
+
+ return { from: from, to: to };
+}
+
/** Update all the HTML on the page, based on current global state.
*/
-var update_board = function() {
- 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 = [];
// Print the history. This is pretty much the only thing that's
// unconditionally taken from current_data (we're not interested in
// historic history).
- if (current_data['position']['pretty_history']) {
- add_pv('start', current_data['position']['pretty_history'], 1, 'W', null, 0, 8, true);
+ if (current_data['position']['history']) {
+ let start = (current_data['position'] && current_data['position']['start_fen']) ? current_data['position']['start_fen'] : 'start';
+ add_pv(start, current_data['position']['history'], 1, 'W', null, 0, 8, true);
} else {
display_lines.push(null);
}
// 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'] + '–' +
// when e.g. viewing history, so if any of these changed during the game,
// use the current one still.
if (current_data['using_lomonosov']) {
- $("#lomonosov").show();
+ document.getElementById("lomonosov").style.display = null;
} else {
- $("#lomonosov").hide();
+ document.getElementById("lomonosov").style.display = 'none';
}
// Credits: The engine name/version.
if (current_data['engine'] && current_data['engine']['name'] !== null) {
- $("#engineid").text(current_data['engine']['name']);
+ document.getElementById("engineid").textContent = current_data['engine']['name'];
}
// Credits: The engine URL.
if (current_data['engine'] && current_data['engine']['url']) {
- $("#engineid").attr("href", current_data['engine']['url']);
+ document.getElementById("engineid").setAttribute("href", current_data['engine']['url']);
} else {
- $("#engineid").removeAttr("href");
+ document.getElementById("engineid").removeAttribute("href");
}
// Credits: Engine details.
if (current_data['engine'] && current_data['engine']['details']) {
- $("#enginedetails").text(" (" + current_data['engine']['details'] + ")");
+ document.getElementById("enginedetails").textContent = " (" + current_data['engine']['details'] + ")";
} else {
- $("#enginedetails").text("");
+ document.getElementById("enginedetails").textContent = "";
}
// Credits: Move source, possibly with URL.
if (current_data['move_source'] && current_data['move_source_url']) {
- $("#movesource").text("Moves provided by ");
- 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.
- last_move = format_halfmove_with_number(
- current_display_line.pretty_pv[current_display_move],
- current_display_move + 1);
- headline += ' after ' + last_move;
+ if (current_display_move !== -1) {
+ last_move = format_halfmove_with_number(
+ current_display_line.pv[current_display_move],
+ current_display_move);
+ headline += ' after ' + last_move;
+ }
} else if (data['position']['last_move'] !== 'none') {
+ // Find the previous move.
+ let previous_move_num, previous_toplay;
+ if (data['position']['toplay'] == 'B') {
+ previous_move_num = data['position']['move_num'];
+ previous_toplay = 'W';
+ } else {
+ previous_move_num = data['position']['move_num'] - 1;
+ previous_toplay = 'B';
+ }
+
last_move = format_move_with_number(
data['position']['last_move'],
- data['position']['move_num'],
- data['position']['toplay'] == 'W');
+ previous_move_num,
+ previous_toplay == 'W');
headline += ' after ' + last_move;
} else {
last_move = null;
}
- $("#headline").text(headline);
+ document.getElementById("headline").textContent = headline;
// The <title> 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']) {
if (data['position'] && data['position']['last_move_uci']) {
highlight_from = data['position']['last_move_uci'].substr(0, 2);
highlight_to = data['position']['last_move_uci'].substr(2, 2);
- } else if (current_display_line_is_history && current_display_move >= 0) {
+ } else if (current_display_line_is_history && current_display_line && current_display_move >= 0) {
// We don't have historic analysis for this position, but we
// can reconstruct what the last move was by just replaying
// from the start.
- var hiddenboard = chess_from(null, current_display_line.pretty_pv, current_display_move);
- var moves = hiddenboard.history({ verbose: true });
- var last_move = moves.pop();
+ 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;
} else {
update_board_highlight();
if (data['failed']) {
- $("#score").text("No analysis for this move");
- $("#pvtitle").text("PV:");
- $("#pv").empty();
- $("#searchstats").html(" ");
- $("#refutationlines").empty();
- $("#whiteclock").empty();
- $("#blackclock").empty();
+ document.getElementById("score").textContent = "No analysis for this move";
+ document.getElementById("pvtitle").textContent = "PV:";
+ document.getElementById("pv").replaceChildren();
+ document.getElementById("searchstats").innerHTML = " ";
+ document.getElementById("refutationlines").replaceChildren();
+ document.getElementById("whiteclock").replaceChildren();
+ document.getElementById("blackclock").replaceChildren();
refutation_lines = [];
update_refutation_lines();
clear_arrows();
return;
}
+ if (clock_timer !== null) {
+ clearTimeout(clock_timer);
+ }
update_clock();
// The score.
if (current_display_line && !current_display_line_is_history) {
+ let score;
if (current_display_line.scores && current_display_line.scores.length > 0) {
- var score;
- for (var i = 0; i < current_display_line.scores.length; ++i) {
+ for (let i = 0; i < current_display_line.scores.length; ++i) {
if (current_display_move < current_display_line.scores[i].first_move) {
break;
}
score = current_display_line.scores[i].score;
}
- $("#score").text(format_long_score(score));
+ }
+ if (score) {
+ document.getElementById("score").textContent = format_long_score(score);
} else {
- $("#score").text("No score for this move");
+ document.getElementById("score").textContent = "No score for this line";
}
} else if (data['score']) {
- $("#score").text(format_long_score(data['score']));
+ document.getElementById("score").textContent = format_long_score(data['score']);
}
// The search stats.
if (data['searchstats']) {
- $("#searchstats").html(data['searchstats']);
+ document.getElementById("searchstats").textContent = data['searchstats'];
} else if (data['tablebase'] == 1) {
- $("#searchstats").text("Tablebase result");
+ document.getElementById("searchstats").textContent = "Tablebase result";
} else if (data['nodes'] && data['nps'] && data['depth']) {
- var stats = thousands(data['nodes']) + ' nodes, ' + thousands(data['nps']) + ' nodes/sec, depth ' + data['depth'] + ' ply';
+ let stats = thousands(data['nodes']) + ' nodes, ' + thousands(data['nps']) + ' nodes/sec, depth ' + data['depth'] + ' ply';
if (data['seldepth']) {
stats += ' (' + data['seldepth'] + ' selective)';
}
}
}
- $("#searchstats").text(stats);
+ document.getElementById("searchstats").textContent = stats;
} else {
- $("#searchstats").text("");
+ document.getElementById("searchstats").textContent = "";
}
// Update the board itself.
update_displayed_line();
// Print the PV.
- $("#pvtitle").text("PV:");
+ document.getElementById("pvtitle").textContent = "PV:";
- var scores = [{ first_move: 0, score: data['score'] }];
- $("#pv").html(add_pv(data['position']['fen'], data['pv_pretty'], data['position']['move_num'], data['position']['toplay'], scores, 0));
+ let scores = [{ first_move: -1, score: data['score'] }];
+ document.getElementById("pv").replaceChildren(add_pv(data['position']['fen'], data['pv'], data['position']['move_num'], data['position']['toplay'], scores, 0));
// Update the PV arrow.
clear_arrows();
- if (data['pv_uci'].length >= 1) {
+ if (data['pv'].length >= 1) {
+ let hiddenboard = new Chess(base_fen);
+
// draw a continuation arrow as long as it's the same piece
- for (var i = 0; i < data['pv_uci'].length; i += 2) {
- var from = data['pv_uci'][i].substr(0, 2);
- var to = data['pv_uci'][i].substr(2,4);
- if ((i >= 2 && from != data['pv_uci'][i - 2].substr(2, 2)) ||
- interfering_arrow(from, to)) {
+ 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)) {
break;
}
- create_arrow(from, to, '#f66', 6, 20);
+ create_arrow(move.from, move.to, '#f66', 6, 20);
+ last_to = move.to;
+ hiddenboard.move(data['pv'][i + 1]); // To keep continuity.
}
- var alt_moves = find_nonstupid_moves(data, 30, data['position']['toplay'] === 'B');
- for (var i = 1; i < alt_moves.length && i < 3; ++i) {
- create_arrow(alt_moves[i].substr(0, 2),
- alt_moves[i].substr(2, 2), '#f66', 1, 10);
+ let alt_moves = find_nonstupid_moves(data, 30, data['position']['toplay'] === 'B');
+ for (let i = 1; i < alt_moves.length && i < 3; ++i) {
+ hiddenboard = new Chess(base_fen);
+ let move = patch_move(hiddenboard.move(alt_moves[i]));
+ if (move !== null) {
+ create_arrow(move.from, move.to, '#f66', 1, 10);
+ }
}
}
// See if all semi-reasonable moves have only one possible response.
- if (data['pv_uci'].length >= 2) {
- var nonstupid_moves = find_nonstupid_moves(data, 300, data['position']['toplay'] === 'B');
- var response = data['pv_uci'][1];
- for (var i = 0; i < nonstupid_moves.length; ++i) {
- if (nonstupid_moves[i] == data['pv_uci'][0]) {
+ if (data['pv'].length >= 2) {
+ let nonstupid_moves = find_nonstupid_moves(data, 300, data['position']['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;
}
if (!data['refutation_lines'] ||
!data['refutation_lines'][nonstupid_moves[i]] ||
- !data['refutation_lines'][nonstupid_moves[i]]['pv_uci'] ||
- data['refutation_lines'][nonstupid_moves[i]]['pv_uci'].length < 1) {
+ !data['refutation_lines'][nonstupid_moves[i]]['pv'] ||
+ data['refutation_lines'][nonstupid_moves[i]]['pv'].length < 2) {
// Incomplete PV, abort.
response = undefined;
break;
}
- var this_response = data['refutation_lines'][nonstupid_moves[i]]['pv_uci'][1];
- if (response !== this_response) {
+ let line = data['refutation_lines'][nonstupid_moves[i]];
+ hiddenboard = new Chess(base_fen);
+ hiddenboard.move(line['pv'][0]);
+ 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;
break;
}
if (nonstupid_moves.length > 0 && response !== undefined) {
- create_arrow(response.substr(0, 2),
- response.substr(2, 2), '#66f', 6, 20);
+ create_arrow(response.from, response.to, '#66f', 6, 20);
}
}
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;
+ let last_move_num = data['position']['move_num'] * 2 - 3;
if (data['position']['toplay'] === '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;
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").sparkline(scores, {
- type: 'bar',
- zeroColor: 'gray',
- chartRangeMin: min_score,
- chartRangeMax: max_score,
- tooltipFormatter: function(sparkline, options, fields) {
- return format_tooltip(data, fields[0].offset + first_move_num);
+ 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;
}
- });
- } else {
- $("#scorespark").text("");
+ }
+
+ 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;
+ }
+
+ 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;
+
+ let data = displayed_analysis_data || current_analysis_data;
+ if (!data) return;
- var data = displayed_analysis_data || current_analysis_data;
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;
- var show_seconds = false;
+ let white_clock_ms = null;
+ let black_clock_ms = null;
// Static clocks.
if (data['position'] &&
}
// 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;
}
if (white_clock_ms === null || black_clock_ms === null) {
- $("#whiteclock").empty();
- $("#blackclock").empty();
+ document.getElementById("whiteclock").replaceChildren();
+ document.getElementById("blackclock").replaceChildren();
return;
}
- // If either player has ten minutes or less left, add the second counters.
- var show_seconds = (white_clock_ms < 60 * 10 * 1000 || black_clock_ms < 60 * 10 * 1000);
+ // If either player has twenty minutes or less left, add the second counters.
+ // This matches what DGT clocks do.
+ 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 {
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 {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";
}
}
- 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 {
/**
* @param {Number} x
*/
-var format_2d = function(x) {
+function format_2d(x) {
if (x >= 10) {
return x;
} else {
/**
* @param {string} move
- * @param {Number} move_num
- * @param {boolean} white_to_play
+ * @param {Number} move_num Move number of this move.
+ * @param {boolean} white_to_play Whether white is to play this move.
*/
-var format_move_with_number = function(move, move_num, white_to_play) {
- var ret;
+function format_move_with_number(move, move_num, white_to_play) {
+ let ret;
if (white_to_play) {
- ret = (move_num - 1) + '… ';
- } else {
ret = move_num + '. ';
+ } else {
+ ret = move_num + '… ';
}
ret += move;
return ret;
/**
* @param {string} move
- * @param {Number} halfmove_num
+ * @param {Number} halfmove_num Half-move number that is to be played,
+ * starting from 0.
*/
-var format_halfmove_with_number = function(move, halfmove_num) {
+function format_halfmove_with_number(move, halfmove_num) {
return format_move_with_number(
move,
Math.floor(halfmove_num / 2) + 1,
* @param {Object} data
* @param {Number} halfmove_num
*/
-var format_tooltip = function(data, halfmove_num) {
- if (data['score_history'][halfmove_num] ||
- halfmove_num === data['position']['pretty_history'].length) {
- var move;
- var short_score;
- if (halfmove_num === data['position']['pretty_history'].length) {
+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).
+ 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']);
} else {
- move = data['position']['pretty_history'][halfmove_num];
- short_score = format_short_score(data['score_history'][halfmove_num]);
+ move = data['position']['history'][halfmove_num];
+ short_score = format_short_score(data['score_history'][halfmove_num + 1]);
+ }
+ if (halfmove_num === -1) {
+ return "Start position: " + short_score;
+ } else {
+ let move_with_number = format_halfmove_with_number(move, halfmove_num);
+ return "After " + move_with_number + ": " + short_score;
}
- var move_with_number = format_halfmove_with_number(move, halfmove_num);
-
- return "After " + move_with_number + ": " + short_score;
} else {
- for (var i = halfmove_num; i --> 0; ) {
+ for (let i = halfmove_num; i --> -1; ) {
if (data['score_history'][i]) {
- var move = data['position']['pretty_history'][i];
- return "[Analysis kept from " + format_halfmove_with_number(move, i) + "]";
+ let move = data['position']['history'][i];
+ if (i === -1) {
+ return "[Analysis kept from start position]";
+ } else {
+ return "[Analysis kept from " + format_halfmove_with_number(move, i) + "]";
+ }
}
}
}
}
-/**
- * @param {boolean} sort_by_score
- */
-var resort_refutation_lines = function(sort_by_score) {
- sort_refutation_lines_by_score = sort_by_score;
- if (supports_html5_storage()) {
- localStorage['sort_refutation_lines_by_score'] = sort_by_score ? 1 : 0;
- }
- update_refutation_lines();
-}
-window['resort_refutation_lines'] = resort_refutation_lines;
-
/**
* @param {boolean} truncate_history
*/
-var set_truncate_history = function(truncate_history) {
+function set_truncate_history(truncate_history) {
truncate_display_history = truncate_history;
update_refutation_lines();
}
* @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;
update_board();
return;
} else {
- current_display_line = jQuery.extend({}, display_lines[line_num]); // Shallow clone.
+ current_display_line = {...display_lines[line_num]}; // Shallow clone.
current_display_move = move_num + current_display_line.start_display_move_num;
}
current_display_line_is_history = (line_num == 0);
}
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;
}
window['prev_move'] = prev_move;
-var next_move = function() {
+function next_move() {
if (current_display_line &&
- current_display_move < current_display_line.pretty_pv.length - 1) {
+ current_display_move < current_display_line.pv.length - 1) {
++current_display_move;
}
update_historic_analysis();
}
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;
- switch_backend(current_games[next_game_num]['url'], current_games[next_game_num]['hashurl']);
+ let next_game_num = (game_num + 1) % current_games.length;
+ switch_backend(current_games[next_game_num]);
return;
}
}
// Couldn't find it; give up.
}
-var update_historic_analysis = function() {
+function update_historic_analysis() {
if (!current_display_line_is_history) {
return;
}
- if (current_display_move == current_display_line.pretty_pv.length - 1) {
+ if (current_display_move == current_display_line.pv.length - 1) {
displayed_analysis_data = null;
update_board();
}
// Fetch old analysis for this line if it exists.
- var hiddenboard = chess_from(null, current_display_line.pretty_pv, current_display_move);
- var 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()];
}
}
- 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;">';
+
+ 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 (var i = 0; i < -imbalance[piece]; ++i) {
- black_imbalance += '<img src="img/chesspieces/wikipedia/b' + piece.toUpperCase() + '.png" alt="" style="width: 15px;height: 15px;">';
+ 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);
}
}
- $('#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 - current_display_line.start_display_move_num));
+ if (highlighted_move !== null) {
+ highlighted_move.classList.add('highlight');
+ }
}
}
*
* @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.pretty_pv.length !== line.pretty_pv.length) continue;
- var ok = true;
- for (var j = 0; j < line.pretty_pv.length; ++j) {
- if (current_display_line.pretty_pv[j] !== line.pretty_pv[j]) {
+ if (current_display_line.pv.length !== line.pv.length) continue;
+ let ok = true;
+ for (let j = 0; j < line.pv.length; ++j) {
+ if (current_display_line.pv[j] !== line.pv[j]) {
ok = false;
break;
}
return null;
}
-var update_displayed_line = function() {
+/** Update the board based on the currently displayed line.
+ *
+ * TODO: This should really be called only whenever something changes,
+ * instead of all the time.
+ */
+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;
- board.position(base_fen);
+ set_board_position(base_fen);
update_imbalance(base_fen);
return;
}
- $("#linenav").show();
- $("#linemsg").hide();
+ document.getElementById("linenav").style.display = 'revert';
+ document.getElementById("linemsg").style.display = 'none';
if (current_display_move <= 0) {
- $("#prevmove").html("Previous");
+ document.getElementById("prevmove").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.pretty_pv.length - 1) {
- $("#nextmove").html("Next");
+ if (current_display_move == current_display_line.pv.length - 1) {
+ 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.pretty_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
+ // and it just changed.
+ explore_hash(hiddenboard.fen());
+ }
display_fen = hiddenboard.fen();
+ update_imbalance(hiddenboard.fen());
+}
+
+function set_board_position(new_fen) {
board_is_animating = true;
- var old_fen = board.fen();
- board.position(hiddenboard.fen());
+ let old_fen = board.fen();
+ board.position(new_fen);
if (board.fen() === old_fen) {
board_is_animating = false;
- } else if (!current_display_line_is_history) {
- // Fire off a hash request, since we're now off the main position
- // and it just changed.
- explore_hash(display_fen);
}
- update_imbalance(hiddenboard.fen());
}
/**
* @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;
/** 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();
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.
}
// 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)) {
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; });
}
// 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.pretty_pv.length - 1) {
- var first_move = current_display_line.pretty_pv[current_display_move + 1];
+ current_display_move < current_display_line.pv.length - 1) {
+ 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.pretty_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];
+ for (let move in refutation_lines) {
+ let line = refutation_lines[move];
if (!line['score']) {
continue;
}
- var first_move = line['pv_pretty'][0];
+ let first_move = line['pv'][0];
if (move_hash[first_move]) {
- var score = compute_score_sort_key(line['score'], 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;
return best_move;
}
-var onDrop = function(source, target) {
+function onDrop(source, target) {
if (source === target) {
if (recommended_move === null) {
return 'snapback';
}
// 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
if (move === null) return 'snapback';
}
-var onSnapEnd = function(source, target) {
+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
});
+ // 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.pretty_pv.length - 1 &&
- current_display_line.pretty_pv[current_display_move + 1] === move.san) {
+ current_display_move < current_display_line.pv.length - 1 &&
+ current_display_line.pv[current_display_move + 1] === move.san) {
next_move();
return;
}
// 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) {
- var line = display_lines[i];
- if (line.pretty_pv[line.start_display_move_num] === move.san) {
+ // 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;
+ }
+ let line = display_lines[i];
+ if (line.pv[line.start_display_move_num] === move.san) {
show_line(i, 0);
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) {
}
}
-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.
- return score[2] + "\u00a0M " + score[1];
+ 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 " + 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]);
return null;
}
-var format_long_score = function(score) {
- if (score[0] === 'm') {
- if (score[1] > 0) {
+function format_long_score(score) {
+ if (!score) {
+ return "???";
+ }
+ if (score[0] === 'T') {
+ if (score[1] == 0) {
+ return "Won for white (tablebase)";
+ } else {
+ return "White wins in " + Math.ceil(score[1] / 2);
+ }
+ } else if (score[0] === 't') {
+ if (score[1] == -1) {
+ return "Won for black (tablebase)";
+ } else {
+ return "Black wins in " + Math.ceil(score[1] / 2);
+ }
+ } else if (score[0] === 'M') {
+ if (score[1] == 0) {
+ return "White wins by checkmate";
+ } else {
return "White mates in " + score[1];
+ }
+ } else if (score[0] === 'm') {
+ if (score[1] == 0) {
+ return "Black wins by checkmate";
} else {
- return "Black mates in " + (-score[1]);
+ return "Black mates in " + score[1];
}
} else if (score[0] === 'd') {
return "Theoretical draw";
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') {
/**
* @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.
* @return {number}
*/
-var compute_score_sort_key = function(score, invert) {
- 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 (invert) s = -s;
- return s;
+ if (score[0] === 'T') {
+ // White reaches TB win.
+ s = 89999 - score[1];
+ } else if (score[0] === 't') {
+ // Black reaches TB win.
+ s = -(89999 - score[1]);
+ } else if (score[0] === 'M') {
+ // White mates.
+ s = 99999 - score[1];
+ } else if (score[0] === 'm') {
+ // Black mates.
+ s = -(99999 - score[1]);
} else if (score[0] === 'd') {
- return 0;
+ s = 0;
} else if (score[0] === 'cp') {
- return invert ? -score[1] : score[1];
+ s = score[1];
+ }
+ if (s) {
+ if (invert) s = -s;
+ return s;
+ } else {
+ return null;
}
- return null;
}
/**
- * @param {string} new_backend_url
+ * @param {Object} game
*/
-var switch_backend = function(new_backend_url, new_backend_hash_url) {
+function switch_backend(game) {
// Stop looking at historic data.
current_display_line = null;
current_display_move = null;
}
// Request an immediate fetch with the new backend.
- backend_url = new_backend_url;
- backend_hash_url = new_backend_hash_url;
+ backend_url = game['url'];
+ backend_hash_url = game['hashurl'];
+ window.location.hash = '#' + game['id'];
current_analysis_data = null;
ims = 0;
request_update();
}
window['switch_backend'] = switch_backend;
-var init = function() {
+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 23,18%22 style=%22fill:%23ffffff;stroke:%23000000%22/><path d=%22M 24,18 C 24.38,20.91 18.45,25.37 16,27 C 13,29 13.18,31.34 11,31 C 9.958,30.06 12.41,27.96 11,28 C 10,28 11.19,29.23 10,30 C 9,30 5.997,31 6,26 C 6,24 12,14 12,14 C 12,14 13.89,12.1 14,10.5 C 13.27,9.506 13.5,8.5 13.5,7.5 C 14.5,6.5 16.5,10 16.5,10 L 18.5,10 C 18.5,10 19.28,8.008 21,7 C 22,7 22,10 22,10%22 style=%22fill:%23ffffff;stroke:%23000000%22/><path d=%22M 9.5 25.5 A 0.5 0.5 0 1 1 8.5,25.5 A 0.5 0.5 0 1 1 9.5 25.5 z%22 style=%22fill:%23000000;stroke:%23000000%22/><path d=%22M 15 15.5 A 0.5 1.5 0 1 1 14,15.5 A 0.5 1.5 0 1 1 15 15.5 z%22 transform=%22matrix(0.866,0.5,-0.5,0.866,9.693,-5.173)%22 style=%22fill:%23000000;stroke:%23000000%22/></g></svg>',
+ 'wP': '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><path d=%22m 22.5,9 c -2.21,0 -4,1.79 -4,4 0,0.89 0.29,1.71 0.78,2.38 C 17.33,16.5 16,18.59 16,21 c 0,2.03 0.94,3.84 2.41,5.03 C 15.41,27.09 11,31.58 11,39.5 H 34 C 34,31.58 29.59,27.09 26.59,26.03 28.06,24.84 29,23.03 29,21 29,18.59 27.67,16.5 25.72,15.38 26.21,14.71 26.5,13.89 26.5,13 c 0,-2.21 -1.79,-4 -4,-4 z%22 style=%22opacity:1;fill:%23ffffff;fill-opacity:1;fill-rule:nonzero;stroke:%23000000;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1%22/></svg>',
+ 'bK': '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 id=%22path6570%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:%23000000;fill-opacity:1;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:%23000000;stroke:%23000000%22/><path d=%22M 20,8 L 25,8%22 style=%22fill:none;stroke:%23000000;stroke-linejoin:miter%22/><path d=%22M 32,29.5 C 32,29.5 40.5,25.5 38.03,19.85 C 34.15,14 25,18 22.5,24.5 L 22.51,26.6 L 22.5,24.5 C 20,18 9.906,14 6.997,19.85 C 4.5,25.5 11.85,28.85 11.85,28.85%22 style=%22fill:none;stroke:%23ffffff%22/><path d=%22M 11.5,30 C 17,27 27,27 32.5,30 M 11.5,33.5 C 17,30.5 27,30.5 32.5,33.5 M 11.5,37 C 17,34 27,34 32.5,37%22 style=%22fill:none;stroke:%23ffffff%22/></g></svg>',
+ 'bQ': '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:svg=%22http://www.w3.org/2000/svg%22 xmlns=%22http://www.w3.org/2000/svg%22 version=%221.1%22 width=%2245%22 height=%2245%22 id=%22svg3128%22><defs/><g id=%22layer1%22><path d=%22M 8 12 A 2 2 0 1 1 4,12 A 2 2 0 1 1 8 12 z%22 style=%22opacity:1;fill:%23000000;fill-opacity:1;stroke:%23000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1%22 id=%22path5571%22/><path d=%22M 9 13 A 2 2 0 1 1 5,13 A 2 2 0 1 1 9 13 z%22 transform=%22translate(15.5,-5.5)%22 style=%22opacity:1;fill:%23000000;fill-opacity:1;stroke:%23000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1%22 id=%22path5573%22/><path d=%22M 9 13 A 2 2 0 1 1 5,13 A 2 2 0 1 1 9 13 z%22 transform=%22translate(32,-1)%22 style=%22opacity:1;fill:%23000000;fill-opacity:1;stroke:%23000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1%22 id=%22path5575%22/><path d=%22M 9 13 A 2 2 0 1 1 5,13 A 2 2 0 1 1 9 13 z%22 transform=%22translate(7,-4.5)%22 style=%22opacity:1;fill:%23000000;fill-opacity:1;stroke:%23000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1%22 id=%22path5577%22/><path d=%22M 9 13 A 2 2 0 1 1 5,13 A 2 2 0 1 1 9 13 z%22 transform=%22translate(24,-4)%22 style=%22opacity:1;fill:%23000000;fill-opacity:1;stroke:%23000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1%22 id=%22path5579%22/><path d=%22M 9,26 C 17.5,24.5 30,24.5 36,26 L 38,14 L 31,25 L 31,11 L 25.5,24.5 L 22.5,9.5 L 19.5,24.5 L 14,10.5 L 14,25 L 7,14 L 9,26 z %22 style=%22fill:%23000000;fill-opacity:1;fill-rule:evenodd;stroke:%23000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:round;stroke-opacity:1%22 id=%22path5581%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 10.5,36 10.5,36 C 9,37.5 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 style=%22fill:%23000000;fill-opacity:1;fill-rule:evenodd;stroke:%23000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:round;stroke-opacity:1%22 id=%22path5583%22/><path d=%22M 11.5,30 C 15,29 30,29 33.5,30%22 style=%22fill:none;fill-opacity:0.75;fill-rule:evenodd;stroke:%23ffffff;stroke-width:1px;stroke-linecap:round;stroke-linejoin:round;stroke-opacity:1%22 id=%22path5585%22/><path d=%22M 12,33.5 C 18,32.5 27,32.5 33,33.5%22 style=%22fill:none;fill-opacity:0.75;fill-rule:evenodd;stroke:%23ffffff;stroke-width:1px;stroke-linecap:round;stroke-linejoin:round;stroke-opacity:1%22 id=%22path5587%22/><path d=%22M 10.5,36 C 15.5,35 29,35 34,36%22 style=%22fill:none;fill-opacity:0.75;fill-rule:evenodd;stroke:%23ffffff;stroke-width:1px;stroke-linecap:round;stroke-linejoin:round;stroke-opacity:1%22 id=%22path5589%22/></g></svg>',
+ 'bR': '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:%23000000;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 12.5,32 L 14,29.5 L 31,29.5 L 32.5,32 L 12.5,32 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 14,29.5 L 14,16.5 L 31,16.5 L 31,29.5 L 14,29.5 z %22 style=%22stroke-linecap:butt;stroke-linejoin:miter%22/><path d=%22M 14,16.5 L 11,14 L 34,14 L 31,16.5 L 14,16.5 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 L 11,14 z %22 style=%22stroke-linecap:butt%22/><path d=%22M 12,35.5 L 33,35.5 L 33,35.5%22 style=%22fill:none;stroke:%23ffffff;stroke-width:1;stroke-linejoin:miter%22/><path d=%22M 13,31.5 L 32,31.5%22 style=%22fill:none;stroke:%23ffffff;stroke-width:1;stroke-linejoin:miter%22/><path d=%22M 14,29.5 L 31,29.5%22 style=%22fill:none;stroke:%23ffffff;stroke-width:1;stroke-linejoin:miter%22/><path d=%22M 14,16.5 L 31,16.5%22 style=%22fill:none;stroke:%23ffffff;stroke-width:1;stroke-linejoin:miter%22/><path d=%22M 11,14 L 34,14%22 style=%22fill:none;stroke:%23ffffff;stroke-width:1;stroke-linejoin:miter%22/></g></svg>',
+ 'bB': '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:%23000000;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:%23ffffff;stroke-linejoin:miter%22/></g></svg>',
+ 'bN': '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 23,18%22 style=%22fill:%23000000;stroke:%23000000%22/><path d=%22M 24,18 C 24.38,20.91 18.45,25.37 16,27 C 13,29 13.18,31.34 11,31 C 9.958,30.06 12.41,27.96 11,28 C 10,28 11.19,29.23 10,30 C 9,30 5.997,31 6,26 C 6,24 12,14 12,14 C 12,14 13.89,12.1 14,10.5 C 13.27,9.506 13.5,8.5 13.5,7.5 C 14.5,6.5 16.5,10 16.5,10 L 18.5,10 C 18.5,10 19.28,8.008 21,7 C 22,7 22,10 22,10%22 style=%22fill:%23000000;stroke:%23000000%22/><path d=%22M 9.5 25.5 A 0.5 0.5 0 1 1 8.5,25.5 A 0.5 0.5 0 1 1 9.5 25.5 z%22 style=%22fill:%23ffffff;stroke:%23ffffff%22/><path d=%22M 15 15.5 A 0.5 1.5 0 1 1 14,15.5 A 0.5 1.5 0 1 1 15 15.5 z%22 transform=%22matrix(0.866,0.5,-0.5,0.866,9.693,-5.173)%22 style=%22fill:%23ffffff;stroke:%23ffffff%22/><path d=%22M 24.55,10.4 L 24.1,11.85 L 24.6,12 C 27.75,13 30.25,14.49 32.5,18.75 C 34.75,23.01 35.75,29.06 35.25,39 L 35.2,39.5 L 37.45,39.5 L 37.5,39 C 38,28.94 36.62,22.15 34.25,17.66 C 31.88,13.17 28.46,11.02 25.06,10.5 L 24.55,10.4 z %22 style=%22fill:%23ffffff;stroke:none%22/></g></svg>',
+ 'bP': '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><path d=%22m 22.5,9 c -2.21,0 -4,1.79 -4,4 0,0.89 0.29,1.71 0.78,2.38 C 17.33,16.5 16,18.59 16,21 c 0,2.03 0.94,3.84 2.41,5.03 C 15.41,27.09 11,31.58 11,39.5 H 34 C 34,31.58 29.59,27.09 26.59,26.03 28.06,24.84 29,23.03 29,21 29,18.59 27.67,16.5 25.72,15.38 26.21,14.71 26.5,13.89 26.5,13 c 0,-2.21 -1.79,-4 -4,-4 z%22 style=%22opacity:1;fill:%23000000;fill-opacity:1;fill-rule:nonzero;stroke:%23000000;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1%22/></svg>',
+};
+
+function svg_piece_theme(piece) {
+ return svg_pieces[piece];
+}
+
+function init() {
unique = get_unique();
// Load settings from HTML5 local storage if available.
- if (supports_html5_storage() && localStorage['enable_sound']) {
- set_sound(parseInt(localStorage['enable_sound']));
+ if (supports_html5_storage() && window['localStorage']['enable_sound']) {
+ set_sound(parseInt(window['localStorage']['enable_sound']));
} else {
set_sound(false);
}
- if (supports_html5_storage() && localStorage['sort_refutation_lines_by_score']) {
- sort_refutation_lines_by_score = parseInt(localStorage['sort_refutation_lines_by_score']);
- } else {
- sort_refutation_lines_by_score = true;
- }
// Create board.
board = new window.ChessBoard('board', {
onMoveEnd: function() { board_is_animating = false; },
draggable: true,
+ pieceTheme: svg_piece_theme,
onDragStart: onDragStart,
onDrop: onDrop,
onSnapEnd: onSnapEnd
});
- $("#board").on('mousedown', '.square-55d63', mousedownSquare);
- $("#board").on('mouseup', '.square-55d63', mouseupSquare);
+ document.getElementById("board").addEventListener('mousedown', mousedownSquare);
+ document.getElementById("board").addEventListener('mouseup', mouseupSquare);
request_update();
- $(window).resize(function() {
+ window.addEventListener('resize', function() {
board.resize();
update_sparkline(displayed_analysis_data || current_analysis_data);
update_board_highlight();
redraw_arrows();
});
- $(window).keyup(function(event) {
+ new ResizeObserver(() => update_sparkline(displayed_analysis_data || current_analysis_data)).observe(document.getElementById('scoresparkcontainer'));
+ window.addEventListener('keyup', function(event) {
if (event.which == 39) { // Left arrow.
next_move();
} else if (event.which == 37) { // Right arrow.
prev_move();
} else if (event.which >= 49 && event.which <= 57) { // 1-9.
- var num = event.which - 49;
+ let num = event.which - 49;
if (current_games && current_games.length >= num) {
- switch_backend(current_games[num]['url'], current_games[num]['hashurl']);
+ switch_backend(current_games[num]);
}
} else if (event.which == 78) { // N.
next_game();
}
});
window.addEventListener('hashchange', possibly_switch_game_from_hash, false);
+ possibly_switch_game_from_hash();
};
-$(document).ready(init);
+document.addEventListener('DOMContentLoaded', init);
})();
projects / remoteglot / blobdiff