X-Git-Url: https://git.sesse.net/?p=remoteglot;a=blobdiff_plain;f=www%2Fjs%2Fremoteglot.js;h=d75b3fca18b980a9dec369699728747d1614699d;hp=078aba6cdf674cda3840e2f16d4714b5c1ef7001;hb=944e74aaa3c5b3038d16d8be1461be6f6f33a4b4;hpb=2d0b748876fdf5ab3216cda6e1d511a3c7d788c7
diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js
index 078aba6..d75b3fc 100644
--- a/www/js/remoteglot.js
+++ b/www/js/remoteglot.js
@@ -48,8 +48,8 @@ var highlight_to = undefined;
/** @type {?jQuery} @private */
var highlighted_move = null;
-/** @type {!number} @private */
-var unique = Math.random();
+/** @type {?number} @private */
+var unique = null;
/** The current position on the board, represented as a FEN string.
* @type {?string}
@@ -76,6 +76,28 @@ var current_display_line = null;
/** @type {?number} @private */
var current_display_move = null;
+var supports_html5_storage = function() {
+ try {
+ return 'localStorage' in window && window['localStorage'] !== null;
+ } catch (e) {
+ return false;
+ }
+}
+
+// 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'];
+ }
+ var unique = Math.random();
+ if (use_local_storage) {
+ localStorage['unique'] = unique;
+ }
+ return unique;
+}
+
var request_update = function() {
$.ajax({
url: "http://analysis.sesse.net/analysis.pl?ims=" + ims + "&unique=" + unique
@@ -407,7 +429,7 @@ var add_pv = function(fen, uci_pv, pretty_pv, move_num, toplay, opt_limit, opt_s
var print_pv = function(line_num, pretty_pv, move_num, toplay, opt_limit, opt_showlast) {
var pv = '';
var i = 0;
- if (opt_limit && opt_showlast) {
+ if (opt_limit && opt_showlast && pretty_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,
@@ -418,7 +440,7 @@ var print_pv = function(line_num, pretty_pv, move_num, toplay, opt_limit, opt_sh
++i;
}
move_num += i / 2;
- } else if (toplay == 'B') {
+ } else if (toplay == 'B' && pretty_pv.length > 0) {
var move = "" + pretty_pv[0] + "";
pv = move_num + '. ⦠' + move;
toplay = 'W';
@@ -455,7 +477,7 @@ var update_highlight = function() {
}
var update_history = function() {
- if (display_lines[0] === null) {
+ if (display_lines[0] === null || display_lines[0].pretty_pv.length == 0) {
$("#history").html("No history");
} else if (truncate_display_history) {
$("#history").html(print_pv(0, display_lines[0].pretty_pv, 1, 'W', 8, true));
@@ -550,14 +572,18 @@ var update_board = function(data, num_viewers) {
} else {
headline = 'Analysis';
}
+ var last_move;
if (data['position']['last_move'] !== 'none') {
- headline += ' after '
if (data['position']['toplay'] == 'W') {
- headline += (data['position']['move_num']-1) + '⦠';
+ last_move = (data['position']['move_num']-1) + '⦠';
} else {
- headline += data['position']['move_num'] + '. ';
+ last_move = data['position']['move_num'] + '. ';
}
- headline += data['position']['last_move'];
+ last_move += data['position']['last_move'];
+
+ headline += ' after ' + last_move;
+ } else {
+ last_move = null;
}
$("#headline").text(headline);
@@ -580,8 +606,24 @@ var update_board = function(data, num_viewers) {
$("#score").text(data['score']);
}
+ var title_elems = [];
+ if (data['short_score'] !== undefined && data['short_score'] !== null) {
+ title_elems.push(data['short_score']);
+ }
+ if (last_move !== null) {
+ title_elems.push(last_move);
+ }
+
+ if (title_elems.length != 0) {
+ document.title = '(' + title_elems.join(', ') + ') analysis.sesse.net';
+ } else {
+ document.title = 'analysis.sesse.net';
+ }
+
// The search stats.
- if (data['nodes'] && data['nps'] && data['depth']) {
+ if (data['tablebase'] == 1) {
+ $("#searchstats").text("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';
if (data['seldepth']) {
stats += ' (' + data['seldepth'] + ' selective)';
@@ -595,6 +637,8 @@ var update_board = function(data, num_viewers) {
}
$("#searchstats").text(stats);
+ } else {
+ $("#searchstats").text("");
}
// Update the board itself.
@@ -749,7 +793,7 @@ var update_displayed_line = function() {
$("#linenav").show();
$("#linemsg").hide();
- if (current_display_move == 0) {
+ if (current_display_move <= 0) {
$("#prevmove").html("Previous");
} else {
$("#prevmove").html("Previous");
@@ -762,9 +806,32 @@ var update_displayed_line = function() {
hiddenboard.position(current_display_line.start_fen, false);
for (var i = 0; i <= current_display_move; ++i) {
+ var pos = hiddenboard.position();
var move = current_display_line.uci_pv[i];
- move = move.substr(0, 2) + "-" + move.substr(2, 2);
+ var source = move.substr(0, 2);
+ var target = move.substr(2, 2);
+ var promo = move.substr(4, 1);
+
+ // Check if we need to do en passant.
+ var piece = pos[source];
+ if (piece == "wP" || piece == "bP") {
+ if (source.substr(0, 1) != target.substr(0, 1) &&
+ pos[target] === undefined) {
+ var ep_square = target.substr(0, 1) + source.substr(1, 1);
+ delete pos[ep_square];
+ hiddenboard.position(pos, false);
+ }
+ }
+
+ move = source + "-" + target;
hiddenboard.move(move, false);
+ pos = hiddenboard.position();
+
+ // Do promotion if needed.
+ if (promo != "") {
+ pos[target] = pos[target].substr(0, 1) + promo.toUpperCase();
+ hiddenboard.position(pos, false);
+ }
// chessboard.js does not automatically move the rook on castling
// (issue #51; marked as won't fix), so update it ourselves.
@@ -786,6 +853,8 @@ var update_displayed_line = function() {
}
var init = function() {
+ unique = get_unique();
+
// Create board.
board = new window.ChessBoard('board', 'start');
hiddenboard = new window.ChessBoard('hiddenboard', 'start');