* @type {Number}
* @const
* @private */
-var SCRIPT_VERSION = 2016113002;
+var SCRIPT_VERSION = 2021021300;
/**
* The current backend URL.
update_num_viewers(num_viewers);
} else {
console.log("Received invalid update, waiting five seconds and trying again.");
- location.reload(true);
+ setTimeout(function() { location.reload(true); }, 5000);
}
// Next update.
- current_analysis_request_timer = setTimeout(function() { request_update(); }, timeout);
+ if (!backend_url.match(/history/)) {
+ current_analysis_request_timer = setTimeout(function() { request_update(); }, timeout);
+ }
}).fail(function(jqXHR, textStatus, errorThrown) {
if (textStatus === "abort") {
// Aborted because we are switching backends. Abandon and don't retry,
return;
}
- var pos = $(".square-a8").position();
-
var zoom_factor = $("#board").width() / 400.0;
var line_width = arrow.line_width * zoom_factor;
var arrow_size = arrow.arrow_size * zoom_factor;
var square_width = $(".square-a8").width();
- var from_y = (7 - arrow.from_row + 0.5)*square_width;
- var to_y = (7 - arrow.to_row + 0.5)*square_width;
- var from_x = (arrow.from_col + 0.5)*square_width;
- var to_x = (arrow.to_col + 0.5)*square_width;
+ var pos, from_y, to_y, from_x, to_x;
+ if (board.orientation() === 'black') {
+ pos = $(".square-h1").position();
+ from_y = (arrow.from_row + 0.5)*square_width;
+ to_y = (arrow.to_row + 0.5)*square_width;
+ from_x = (7 - arrow.from_col + 0.5)*square_width;
+ to_x = (7 - arrow.to_col + 0.5)*square_width;
+ } else {
+ pos = $(".square-a8").position();
+ from_y = (7 - arrow.from_row + 0.5)*square_width;
+ to_y = (7 - arrow.to_row + 0.5)*square_width;
+ from_x = (arrow.from_col + 0.5)*square_width;
+ to_x = (arrow.to_col + 0.5)*square_width;
+ }
var SVG_NS = "http://www.w3.org/2000/svg";
var XHTML_NS = "http://www.w3.org/1999/xhtml";
scores: scores,
start_display_move_num: start_display_move_num
});
- return print_pv(display_lines.length - 1, opt_limit, opt_showlast);
+ var splicepos = null;
+ if (scores !== null && scores.length >= 1 &&
+ scores[scores.length - 1].score !== undefined &&
+ scores[scores.length - 1].score !== null &&
+ (scores[scores.length - 1].score[0] === 'T' ||
+ scores[scores.length - 1].score[0] === 't')) {
+ splicepos = scores[scores.length - 1].score[1];
+ }
+ return print_pv(display_lines.length - 1, splicepos, opt_limit, opt_showlast);
}
/**
* @param {number} line_num
+ * @param {?number} splicepos If non-null, where the tablebase-spliced portion of the TB starts.
* @param {number=} opt_limit If set, show at most this number of moves.
* @param {boolean=} opt_showlast If limit is set, show the last moves instead of the first ones.
*/
-var print_pv = function(line_num, opt_limit, opt_showlast) {
+var print_pv = function(line_num, splicepos, opt_limit, opt_showlast) {
var display_line = display_lines[line_num];
var pv = display_line.pv;
var move_num = display_line.move_num;
--to_add;
}
move_num += to_add / 2;
+ if (splicepos !== null && splicepos > 0) {
+ --splicepos;
+ }
}
var ret = '';
var i = 0;
+ var in_tb = false;
if (opt_limit && opt_showlast && pv.length > opt_limit) {
// Truncate the PV at the beginning (instead of at the end).
// We assume here that toplay is 'W'. We also assume that if
}
move_num += i / 2;
} else if (toplay == 'B' && pv.length > 0) {
- var move = "<a class=\"move\" id=\"automove" + line_num + "-0\" href=\"javascript:show_line(" + line_num + ", " + 0 + ");\">" + pv[0] + "</a>";
+ var move = "";
+ if (splicepos === 0) {
+ move += "(TB: ";
+ in_tb = true;
+ }
+ move += "<a class=\"move\" id=\"automove" + line_num + "-0\" href=\"javascript:show_line(" + line_num + ", " + 0 + ");\">" + pv[0] + "</a>";
ret = move_num + '. … ' + move;
toplay = 'W';
++i;
}
for ( ; i < pv.length; ++i) {
var move = "<a class=\"move\" id=\"automove" + line_num + "-" + i + "\" href=\"javascript:show_line(" + line_num + ", " + i + ");\">" + pv[i] + "</a>";
+ if (splicepos === i) {
+ ret += " (TB: ";
+ in_tb = true;
+ }
if (toplay == 'W') {
if (i > opt_limit && !opt_showlast) {
+ if (in_tb) {
+ ret += ")";
+ }
return ret + ' (…)';
}
if (ret != '') {
toplay = 'W';
}
}
+ if (in_tb) {
+ ret += ")";
+ }
return ret;
}
if (display_lines[0] === null || display_lines[0].pv.length == 0) {
$("#history").html("No history");
} else if (truncate_display_history) {
- $("#history").html(print_pv(0, 8, true));
+ $("#history").html(print_pv(0, null, 8, true));
} else {
$("#history").html(
'(<a class="move" href="javascript:collapse_history(true)">collapse</a>) ' +
- print_pv(0));
+ print_pv(0, null));
}
}
var tbl = $("#refutationlines");
tbl.empty();
+ if (display_lines.length < 2) {
+ return;
+ }
+
// Find out where the lines start from.
var base_line = [];
var base_scores = display_lines[1].scores;
}
var invert = (toplay === 'B');
- if (current_display_line && current_display_move % 2 == 0) {
+ if (current_display_line && current_display_move % 2 == 0 && !current_display_line_is_history) {
invert = !invert;
}
moves = moves.sort(function(a, b) { return compare_by_score(refutation_lines, invert, a, b) });
*/
var chess_from = function(fen, moves, last_move) {
var hiddenboard = new Chess();
- if (fen !== null) {
+ if (fen !== null && fen !== undefined) {
hiddenboard.load(fen);
}
for (var i = 0; i <= last_move; ++i) {
* and switch to it if we're not already displaying it.
*/
var possibly_switch_game_from_hash = function() {
+ var history_match = window.location.hash.match(/^#history=([a-zA-Z0-9_-]+)/);
+ if (history_match !== null) {
+ var game_id = history_match[1];
+ var fake_game = {
+ url: '/history/' + game_id + '.json',
+ hashurl: '',
+ id: 'history=' + game_id
+ };
+ switch_backend(fake_game);
+ return;
+ }
+
if (current_games === null) {
return;
}
}
}
+/**
+ * If this is a Chess960 castling which doesn't move the king,
+ * move the rook instead.
+*/
+var patch_move = function(move) {
+ if (move === null) return null;
+ if (move.from !== move.to) return move;
+
+ var f = move.rook_sq & 15;
+ var r = move.rook_sq >> 4;
+ var from = ('abcdefgh'.substring(f,f+1) + '87654321'.substring(r,r+1));
+ var to = move.to;
+
+ if (move.to === 'g1') {
+ to = 'f1';
+ } else if (move.to === 'g8') {
+ to = 'f8';
+ } else if (move.to === 'b1') {
+ to = 'c1';
+ } else if (move.to === 'b8') {
+ to = 'c8';
+ }
+
+ return { from: from, to: to };
+}
+
/** Update all the HTML on the page, based on current global state.
*/
var update_board = function() {
// unconditionally taken from current_data (we're not interested in
// historic history).
if (current_data['position']['history']) {
- add_pv('start', current_data['position']['history'], 1, 'W', null, 0, 8, true);
+ var start = (current_data['position'] && current_data['position']['start_fen']) ? current_data['position']['start_fen'] : 'start';
+ add_pv(start, current_data['position']['history'], 1, 'W', null, 0, 8, true);
} else {
display_lines.push(null);
}
// 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.pv, current_display_move);
+ var position = (data['position'] && data['position']['start_fen']) ? data['position']['start_fen'] : null;
+ var hiddenboard = chess_from(position, current_display_line.pv, current_display_move);
var moves = hiddenboard.history({ verbose: true });
last_move = moves.pop();
highlight_from = last_move.from;
// draw a continuation arrow as long as it's the same piece
var last_to;
for (var i = 0; i < data['pv'].length; i += 2) {
- var move = hiddenboard.move(data['pv'][i]);
+ var move = patch_move(hiddenboard.move(data['pv'][i]));
+
if ((i >= 2 && move.from != last_to) ||
interfering_arrow(move.from, move.to)) {
break;
}
create_arrow(move.from, move.to, '#f66', 6, 20);
- last_to = move.from;
+ 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) {
hiddenboard = new Chess(base_fen);
- var move = hiddenboard.move(alt_moves[i]);
+ var move = patch_move(hiddenboard.move(alt_moves[i]));
if (move !== null) {
create_arrow(move.from, move.to, '#f66', 1, 10);
}
if (!data['refutation_lines'] ||
!data['refutation_lines'][nonstupid_moves[i]] ||
!data['refutation_lines'][nonstupid_moves[i]]['pv'] ||
- data['refutation_lines'][nonstupid_moves[i]]['pv'].length < 1) {
+ data['refutation_lines'][nonstupid_moves[i]]['pv'].length < 2) {
// Incomplete PV, abort.
response = undefined;
break;
hiddenboard = new Chess(base_fen);
hiddenboard.move(line['pv'][0]);
var this_response = hiddenboard.move(line['pv'][1]);
+ if (this_response === null) {
+ console.log("BUG: ", i);
+ console.log(data);
+ console.log(line['pv']);
+ }
if (response.from !== this_response.from || response.to !== this_response.to) {
// Different response depending on lines, abort.
response = undefined;
}
// FIXME: at some widths, calling sparkline() seems to push
// #scorecontainer under the board.
+ $('#scorespark').unbind('sparklineClick');
$("#scorespark").sparkline(scores, {
type: 'bar',
zeroColor: 'gray',
return format_tooltip(data, fields[0].offset + first_move_num - 1);
}
});
+ $('#scorespark').unbind('sparklineClick');
$('#scorespark').bind('sparklineClick', function(event) {
var sparkline = event.sparklines[0];
var region = sparkline.getCurrentRegionFields();
* @param {number} num_viewers
*/
var update_num_viewers = function(num_viewers) {
+ var text = "";
if (num_viewers === null) {
- $("#numviewers").text("");
+ text = "";
} else if (num_viewers == 1) {
- $("#numviewers").text("You are the only current viewer");
+ text = "You are the only current viewer";
} else {
- $("#numviewers").text(num_viewers + " current viewers");
+ text = num_viewers + " current viewers";
}
+ if (display_fen !== null) {
+ var counter = Math.floor(display_fen.split(" ")[4] / 2);
+ if (counter >= 20) {
+ text = text.replace("current ", "");
+ text += " | 50-move rule: " + counter;
+ }
+ }
+ $("#numviewers").text(text);
}
var update_clock = function() {
}
// Fetch old analysis for this line if it exists.
- var hiddenboard = chess_from(null, current_display_line.pv, current_display_move);
+ var hiddenboard = chess_from(current_display_line.start_fen, current_display_line.pv, current_display_move);
var filename = "/history/move" + (current_display_move + 1) + "-" +
hiddenboard.fen().replace(/ /g, '_').replace(/\//g, '-') + ".json";
$("#pvtitle").text("Exploring:");
current_display_line.start_display_move_num = 0;
display_lines.push(current_display_line);
- $("#pv").html(print_pv(display_lines.length - 1));
+ $("#pv").html(print_pv(display_lines.length - 1, null)); // FIXME
display_line_num = display_lines.length - 1;
// Clear out the PV, so it's not selected by anything later.
if (!score) {
return "???";
}
- if (score[0] === 'm') {
+ if (score[0] === 'T' || score[0] === 't') {
+ var ret = "TB\u00a0";
+ if (score[2]) { // Is a bound.
+ ret = score[2] + "\u00a0TB\u00a0";
+ }
+ if (score[0] === 'T') {
+ return ret + Math.ceil(score[1] / 2);
+ } else {
+ return ret + "-" + Math.ceil(score[1] / 2);
+ }
+ } else if (score[0] === 'M' || score[0] === 'm') {
+ var sign = (score[0] === 'm') ? '-' : '';
if (score[2]) { // Is a bound.
- return score[2] + "\u00a0M " + score[1];
+ return score[2] + "\u00a0M " + sign + score[1];
} else {
- return "M " + score[1];
+ return "M " + sign + score[1];
}
} else if (score[0] === 'd') {
- return "TB draw";
+ return "TB =0";
} else if (score[0] === 'cp') {
if (score[2]) { // Is a bound.
return score[2] + "\u00a0" + fmt_cp(score[1]);
if (!score) {
return "???";
}
- if (score[0] === 'm') {
- if (score[1] > 0) {
+ if (score[0] === 'T') {
+ if (score[1] == 0) {
+ return "Won for white (tablebase)";
+ } else {
+ return "White wins in " + Math.ceil(score[1] / 2);
+ }
+ } else if (score[0] === 't') {
+ if (score[1] == -1) {
+ return "Won for black (tablebase)";
+ } else {
+ return "Black wins in " + Math.ceil(score[1] / 2);
+ }
+ } else if (score[0] === 'M') {
+ if (score[1] == 0) {
+ return "White wins by checkmate";
+ } else {
return "White mates in " + score[1];
+ }
+ } else if (score[0] === 'm') {
+ if (score[1] == 0) {
+ return "Black wins by checkmate";
} else {
- return "Black mates in " + (-score[1]);
+ return "Black mates in " + score[1];
}
} else if (score[0] === 'd') {
return "Theoretical draw";
}
var compute_plot_score = function(score) {
- if (score[0] === 'm') {
- if (score[1] > 0) {
- return 500;
- } else {
- return -500;
- }
+ if (score[0] === 'M' || score[0] === 'T') {
+ return 500;
+ } else if (score[0] === 'm' || score[0] === 't') {
+ return -500;
} else if (score[0] === 'd') {
return 0;
} else if (score[0] === 'cp') {
if (!score) {
return -10000000;
}
- if (score[0] === 'm') {
- if (score[1] > 0) {
- // White mates.
- s = 99999 - score[1];
- } else {
- // Black mates (note the double negative for score[1]).
- s = -99999 - score[1];
- }
+ if (score[0] === 'T') {
+ // White reaches TB win.
+ s = 89999 - score[1];
+ } else if (score[0] === 't') {
+ // Black reaches TB win.
+ s = -(89999 - score[1]);
+ } else if (score[0] === 'M') {
+ // White mates.
+ s = 99999 - score[1];
+ } else if (score[0] === 'm') {
+ // Black mates.
+ s = -(99999 - score[1]);
} else if (score[0] === 'd') {
s = 0;
} else if (score[0] === 'cp') {
}
window['switch_backend'] = switch_backend;
+window['flip'] = function() { board.flip(); redraw_arrows(); };
+
var init = function() {
unique = get_unique();
}
});
window.addEventListener('hashchange', possibly_switch_game_from_hash, false);
+ possibly_switch_game_from_hash();
};
$(document).ready(init);
projects / remoteglot / blobdiff