X-Git-Url: https://git.sesse.net/?p=remoteglot;a=blobdiff_plain;f=www%2Fjs%2Fremoteglot.js;h=43b2e1ddbb7c304b2450349fbaef79e23e355d92;hp=52e4c4a72f528827ee4b9c1018060bb8fedc5642;hb=ab94a7c05a495c1d8f9ea30e2268bbc72f17b303;hpb=739a5a75ca7f10bb9759578acea288d97aa4a0a9 diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js index 52e4c4a..43b2e1d 100644 --- a/www/js/remoteglot.js +++ b/www/js/remoteglot.js @@ -3,6 +3,23 @@ /** @type {window.ChessBoard} @private */ var board = null; +/** + * The most recent analysis data we have from the server + * (about the most recent position). + * + * @type {?Object} + * @private */ +var current_analysis_data = null; + +/** + * If we are displaying previous analysis, this is non-null, + * and will override most of current_analysis_data. + * + * @type {?Object} + * @private + */ +var displayed_analysis_data = null; + /** @type {Array.<{ * from_col: number, * from_row: number, @@ -48,6 +65,21 @@ var highlighted_move = null; /** @type {?number} @private */ var unique = null; +/** @type {boolean} @private */ +var enable_sound = false; + +/** + * Our best estimate of how many milliseconds we need to add to + * new Date() to get the true UTC time. Calibrated against the + * server clock. + * + * @type {?number} + * @private + */ +var client_clock_offset_ms = null; + +var clock_timer = null; + /** The current position on the board, represented as a FEN string. * @type {?string} * @private @@ -70,6 +102,9 @@ var display_lines = []; /** @type {?DisplayLine} @private */ var current_display_line = null; +/** @type {boolean} @private */ +var current_display_line_is_history = false; + /** @type {?number} @private */ var current_display_move = null; @@ -99,9 +134,19 @@ var request_update = function() { $.ajax({ url: "/analysis.pl?ims=" + ims + "&unique=" + unique }).done(function(data, textstatus, xhr) { - ims = xhr.getResponseHeader('X-Remoteglot-Last-Modified'); - var num_viewers = xhr.getResponseHeader('X-Remoteglot-Num-Viewers'); - update_board(data); + 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; + } + possibly_play_sound(current_analysis_data, new_data); + current_analysis_data = new_data; + update_board(current_analysis_data, displayed_analysis_data); update_num_viewers(num_viewers); // Next update. @@ -112,6 +157,41 @@ var request_update = function() { }); } +var possibly_play_sound = function(old_data, new_data) { + if (!enable_sound) { + return; + } + if (old_data === null) { + return; + } + var ding = document.getElementById('ding'); + if (ding && ding.play) { + if (old_data['position'] && old_data['position']['fen'] && + new_data['position'] && new_data['position']['fen'] && + (old_data['position']['fen'] !== new_data['position']['fen'] || + old_data['position']['move_num'] !== new_data['position']['move_num'])) { + ding.play(); + } + } +} + +/** + * @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; + + // In order not to let the noise move us too much back and forth + // (the server only has one-second resolution anyway), we only + // change an existing skew if we are at least five seconds off. + if (client_clock_offset_ms === null || + Math.abs(estimated_offset_ms - client_clock_offset_ms) > 5000) { + client_clock_offset_ms = estimated_offset_ms; + } +} + var clear_arrows = function() { for (var i = 0; i < arrows.length; ++i) { if (arrows[i].svg) { @@ -233,7 +313,7 @@ var position_arrow = function(arrow) { arrow.svg.parentElement.removeChild(arrow.svg); delete arrow.svg; } - if (current_display_line !== null) { + if (current_display_line !== null && !current_display_line_is_history) { return; } @@ -401,23 +481,15 @@ var thousands = function(x) { /** * @param {!string} fen - * @param {Array.} uci_pv + * @param {Array.} pretty_pv * @param {number} move_num * @param {!string} toplay * @param {number=} opt_limit * @param {boolean=} opt_showlast */ -var add_pv = function(fen, uci_pv, move_num, toplay, opt_limit, opt_showlast) { - var hiddenboard = new Chess(); - hiddenboard.load(fen); - for (var i = 0; i < uci_pv.length; ++i) { - hiddenboard.move(ucimove_to_chessjs_move(uci_pv[i])); - } - var pretty_pv = hiddenboard.history(); - +var add_pv = function(fen, pretty_pv, move_num, toplay, opt_limit, opt_showlast) { display_lines.push({ start_fen: fen, - uci_pv: uci_pv, pretty_pv: pretty_pv, line_number: display_lines.length }); @@ -476,7 +548,8 @@ var print_pv = function(line_num, pretty_pv, move_num, toplay, opt_limit, opt_sh var update_highlight = function() { $("#board").find('.square-55d63').removeClass('nonuglyhighlight'); - if (current_display_line === null && highlight_from !== undefined && highlight_to !== undefined) { + 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'); } @@ -528,7 +601,7 @@ var update_refutation_lines = function() { var move_td = document.createElement("td"); tr.appendChild(move_td); $(move_td).addClass("move"); - if (line['pv_uci'].length == 0) { + if (line['pv_pretty'].length == 0) { $(move_td).text(line['pretty_move']); } else { var move = "" + line['pretty_move'] + ""; @@ -548,7 +621,7 @@ var update_refutation_lines = function() { var pv_td = document.createElement("td"); tr.appendChild(pv_td); $(pv_td).addClass("pv"); - $(pv_td).html(add_pv(fen, line['pv_uci'], move_num, toplay, 10)); + $(pv_td).html(add_pv(fen, line['pv_pretty'], move_num, toplay, 10)); tbl.append(tr); } @@ -563,49 +636,82 @@ var update_refutation_lines = function() { } } +/** + * @param {?string} fen + * @param {Array.} moves + * @param {number} last_move + */ +var chess_from = function(fen, moves, last_move) { + var hiddenboard = new Chess(); + if (fen !== null) { + hiddenboard.load(fen); + } + for (var i = 0; i <= last_move; ++i) { + if (moves[i] === '0-0') { + hiddenboard.move('O-O'); + } else if (moves[i] === '0-0-0') { + hiddenboard.move('O-O-O'); + } else { + hiddenboard.move(moves[i]); + } + } + return hiddenboard; +} + /** * @param {Object} data + * @param {?Object} display_data */ -var update_board = function(data) { +var update_board = function(current_data, display_data) { + var data = display_data || current_data; + display_lines = []; - // The headline. + // 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', 8, true); + } else { + display_lines.push(null); + } + update_history(); + + // The headline. Names are always fetched from current_data; + // the rest can depend a bit. var headline; - if (data['position']['player_w'] && data['position']['player_b']) { - headline = data['position']['player_w'] + '–' + - data['position']['player_b'] + ', analysis'; + if (current_data && + current_data['position']['player_w'] && current_data['position']['player_b']) { + headline = current_data['position']['player_w'] + '–' + + current_data['position']['player_b'] + ', analysis'; } else { headline = 'Analysis'; } - var last_move; - if (data['position']['last_move'] !== 'none') { - if (data['position']['toplay'] == 'W') { - last_move = (data['position']['move_num']-1) + '… '; - } else { - last_move = data['position']['move_num'] + '. '; - } - last_move += data['position']['last_move']; + var last_move; + if (display_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_move_with_number( + current_display_line.pretty_pv[current_display_move], + Math.floor((current_display_move + 1) / 2) + 1, + (current_display_move % 2 == 1)); + headline += ' after ' + last_move; + } else if (data['position']['last_move'] !== 'none') { + last_move = format_move_with_number( + data['position']['last_move'], + data['position']['move_num'], + data['position']['toplay'] == 'W'); headline += ' after ' + last_move; } else { last_move = null; } - $("#headline").text(headline); - // The engine id. - if (data['id'] && data['id']['name'] !== null) { - $("#engineid").text(data['id']['name']); - } - - // The score. - if (data['score'] !== null) { - $("#score").text(data['score']); - } - + // The contains a very brief headline. var title_elems = []; if (data['short_score'] !== undefined && data['short_score'] !== null) { - title_elems.push(data['short_score']); + title_elems.push(data['short_score'].replace(/^ /, "")); } if (last_move !== null) { title_elems.push(last_move); @@ -617,6 +723,50 @@ var update_board = function(data) { document.title = 'analysis.sesse.net'; } + // The last move (shown by highlighting the from and to squares). + 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) { + // 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(); + highlight_from = last_move.from; + highlight_to = last_move.to; + } else { + highlight_from = highlight_to = undefined; + } + update_highlight(); + + if (data['failed']) { + $("#score").text("No analysis for this move"); + $("#pv").empty(); + $("#searchstats").html(" "); + $("#refutationlines").empty(); + $("#whiteclock").empty(); + $("#blackclock").empty(); + refutation_lines = []; + update_refutation_lines(); + clear_arrows(); + update_displayed_line(); + return; + } + + update_clock(); + + // The engine id. + if (data['id'] && data['id']['name'] !== null) { + $("#engineid").text(data['id']['name']); + } + + // The score. + if (data['score'] !== null) { + $("#score").text(data['score']); + } + // The search stats. if (data['tablebase'] == 1) { $("#searchstats").text("Tablebase result"); @@ -642,24 +792,8 @@ var update_board = function(data) { fen = data['position']['fen']; update_displayed_line(); - if (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 { - highlight_from = highlight_to = undefined; - } - update_highlight(); - - // Print the history. - if (data['position']['history']) { - add_pv('start', data['position']['history'], 1, 'W', 8, true); - } else { - display_lines.push(null); - } - update_history(); - // Print the PV. - $("#pv").html(add_pv(data['position']['fen'], data['pv_uci'], data['position']['move_num'], data['position']['toplay'])); + $("#pv").html(add_pv(data['position']['fen'], data['pv_pretty'], data['position']['move_num'], data['position']['toplay'])); // Update the PV arrow. clear_arrows(); @@ -734,11 +868,157 @@ var update_num_viewers = function(num_viewers) { } } +var update_clock = function() { + clearTimeout(clock_timer); + + var data = displayed_analysis_data || current_analysis_data; + if (data['position']) { + var result = data['position']['result']; + if (result === '1-0') { + $("#whiteclock").text("1"); + $("#blackclock").text("0"); + $("#whiteclock").removeClass("running-clock"); + $("#blackclock").removeClass("running-clock"); + return; + } + if (result === '1/2-1/2') { + $("#whiteclock").text("1/2"); + $("#blackclock").text("1/2"); + $("#whiteclock").removeClass("running-clock"); + $("#blackclock").removeClass("running-clock"); + return; + } + if (result === '0-1') { + $("#whiteclock").text("0"); + $("#blackclock").text("1"); + $("#whiteclock").removeClass("running-clock"); + $("#blackclock").removeClass("running-clock"); + return; + } + } + + var white_clock_ms = null; + var black_clock_ms = null; + var show_seconds = false; + + // Static clocks. + if (data['position'] && + data['position']['white_clock'] && + data['position']['black_clock']) { + white_clock_ms = data['position']['white_clock'] * 1000; + black_clock_ms = data['position']['black_clock'] * 1000; + } + + // Dynamic clock (only one, obviously). + var color; + if (data['position']['white_clock_target']) { + color = "white"; + $("#whiteclock").addClass("running-clock"); + $("#blackclock").removeClass("running-clock"); + } else if (data['position']['black_clock_target']) { + color = "black"; + $("#whiteclock").removeClass("running-clock"); + $("#blackclock").addClass("running-clock"); + } else { + $("#whiteclock").removeClass("running-clock"); + $("#blackclock").removeClass("running-clock"); + } + var remaining_ms; + if (color) { + var 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; + } else { + black_clock_ms = remaining_ms; + } + } + + if (white_clock_ms === null || black_clock_ms === null) { + $("#whiteclock").empty(); + $("#blackclock").empty(); + 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 (color) { + // See when the clock will change next, and update right after that. + var next_update_ms; + if (show_seconds) { + next_update_ms = remaining_ms % 1000 + 100; + } else { + next_update_ms = remaining_ms % 60000 + 100; + } + 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)); +} + +/** + * @param {Number} remaining_ms + * @param {boolean} show_seconds + */ +var format_clock = function(remaining_ms, show_seconds) { + if (remaining_ms <= 0) { + if (show_seconds) { + return "00:00:00"; + } else { + return "00:00"; + } + } + + var remaining = Math.floor(remaining_ms / 1000); + var seconds = remaining % 60; + remaining = (remaining - seconds) / 60; + var minutes = remaining % 60; + remaining = (remaining - minutes) / 60; + var hours = remaining; + if (show_seconds) { + return format_2d(hours) + ":" + format_2d(minutes) + ":" + format_2d(seconds); + } else { + return format_2d(hours) + ":" + format_2d(minutes); + } +} + +/** + * @param {Number} x + */ +var format_2d = function(x) { + if (x >= 10) { + return x; + } else { + return "0" + x; + } +} + +/** + * @param {string} move + * @param {Number} move_num + * @param {boolean} white_to_play + */ +var format_move_with_number = function(move, move_num, white_to_play) { + var ret; + if (white_to_play) { + ret = (move_num - 1) + '… '; + } else { + ret = move_num + '. '; + } + ret += move; + return ret; +} + /** * @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; @@ -760,10 +1040,19 @@ var show_line = function(line_num, move_num) { if (line_num == -1) { current_display_line = null; current_display_move = null; + if (displayed_analysis_data) { + // TODO: Support exiting to history position if we are in an + // analysis line of a history position. + displayed_analysis_data = null; + update_board(current_analysis_data, displayed_analysis_data); + } } else { current_display_line = display_lines[line_num]; current_display_move = move_num; } + current_display_line_is_history = (line_num == 0); + + update_historic_analysis(); update_displayed_line(); update_highlight(); redraw_arrows(); @@ -774,6 +1063,7 @@ var prev_move = function() { if (current_display_move > -1) { --current_display_move; } + update_historic_analysis(); update_displayed_line(); } window['prev_move'] = prev_move; @@ -782,10 +1072,71 @@ var next_move = function() { if (current_display_line && current_display_move < current_display_line.pretty_pv.length - 1) { ++current_display_move; } + update_historic_analysis(); update_displayed_line(); } window['next_move'] = next_move; +var update_historic_analysis = function() { + if (!current_display_line_is_history) { + return; + } + if (current_display_move == current_display_line.pretty_pv.length - 1) { + displayed_analysis_data = null; + update_board(current_analysis_data, displayed_analysis_data); + } + + // 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) + "-" + + hiddenboard.fen().replace(/ /g, '_').replace(/\//g, '-') + ".json"; + + $.ajax({ + url: filename + }).done(function(data, textstatus, xhr) { + displayed_analysis_data = data; + update_board(current_analysis_data, displayed_analysis_data); + }).fail(function() { + displayed_analysis_data = {'failed': true}; + update_board(current_analysis_data, displayed_analysis_data); + }); +} + +/** + * @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]; + } + } + } + } + var white_imbalance = ''; + var black_imbalance = ''; + for (var piece in imbalance) { + for (var i = 0; i < imbalance[piece]; ++i) { + white_imbalance += '<img src="img/chesspieces/wikipedia/w' + piece.toUpperCase() + '.png" alt="" style="width: 15px;height: 15px;">'; + } + for (var i = 0; i < -imbalance[piece]; ++i) { + black_imbalance += '<img src="img/chesspieces/wikipedia/b' + piece.toUpperCase() + '.png" alt="" style="width: 15px;height: 15px;">'; + } + } + $('#whiteimbalance').html(white_imbalance); + $('#blackimbalance').html(black_imbalance); +} + var update_displayed_line = function() { if (highlighted_move !== null) { highlighted_move.removeClass('highlight'); @@ -794,6 +1145,7 @@ var update_displayed_line = function() { $("#linenav").hide(); $("#linemsg").show(); board.position(fen); + update_imbalance(fen); return; } @@ -805,39 +1157,61 @@ var update_displayed_line = function() { } else { $("#prevmove").html("<a href=\"javascript:prev_move();\">Previous</a></span>"); } - if (current_display_move == current_display_line.uci_pv.length - 1) { + if (current_display_move == current_display_line.pretty_pv.length - 1) { $("#nextmove").html("Next"); } else { $("#nextmove").html("<a href=\"javascript:next_move();\">Next</a></span>"); } - var hiddenboard = new Chess(); - hiddenboard.load(current_display_line.start_fen); - for (var i = 0; i <= current_display_move; ++i) { - hiddenboard.move(ucimove_to_chessjs_move(current_display_line.uci_pv[i])); - } - highlighted_move = $("#automove" + current_display_line.line_number + "-" + current_display_move); highlighted_move.addClass('highlight'); + var hiddenboard = chess_from(current_display_line.start_fen, current_display_line.pretty_pv, current_display_move); board.position(hiddenboard.fen()); + update_imbalance(hiddenboard.fen()); } -var ucimove_to_chessjs_move = function(move) { - var source = move.substr(0, 2); - var target = move.substr(2, 2); - var promo = move.substr(4, 1); - - if (promo === '') { - return { from: source, to: target }; +/** + * @param {boolean} param_enable_sound + */ +var set_sound = function(param_enable_sound) { + enable_sound = param_enable_sound; + if (enable_sound) { + $("#soundon").html("<strong>On</strong>"); + $("#soundoff").html("<a href=\"javascript:set_sound(false)\">Off</a>"); + + // 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'); + if (ding && ding.canPlayType && ding.canPlayType('audio/ogg; codecs="opus"') === 'probably') { + ding.src = 'ding.opus'; + ding.load(); + } } else { - return { from: source, to: target, promotion: promo }; + $("#soundon").html("<a href=\"javascript:set_sound(true)\">On</a>"); + $("#soundoff").html("<strong>Off</strong>"); + } + if (supports_html5_storage()) { + localStorage['enable_sound'] = enable_sound ? 1 : 0; } } +window['set_sound'] = set_sound; var init = function() { unique = get_unique(); + // Load settings from HTML5 local storage if available. + if (supports_html5_storage() && localStorage['enable_sound']) { + set_sound(parseInt(localStorage['enable_sound'])); + } 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', 'start');