-(function() {
-
-var board = [];
+var board = null;
+var hiddenboard = null;
var arrows = [];
var arrow_targets = [];
var occupied_by_arrows = [];
+var refutation_lines = [];
+var move_num = 1;
+var toplay = 'W';
var ims = 0;
+var sort_refutation_lines_by_score = 0;
var highlight_from = undefined;
var highlight_to = undefined;
var unique = Math.random();
+var fen = null;
+var display_lines = [];
+var current_display_line = null;
+var current_display_move = null;
+
var request_update = function(board) {
$.ajax({
url: "http://analysis.sesse.net/analysis.pl?ims=" + ims + "&unique=" + unique
ims = xhr.getResponseHeader('X-Remoteglot-Last-Modified');
var num_viewers = xhr.getResponseHeader('X-Remoteglot-Num-Viewers');
update_board(board, data, num_viewers);
+ }).fail(function() {
+ // Wait ten seconds, then try again.
+ setTimeout(function() { request_update(board); }, 10000);
});
}
if (arrow.connection2) {
jsPlumb.detach(arrow.connection2);
}
+ if (current_display_line !== null) {
+ delete arrow.connection1;
+ delete arrow.connection2;
+ return;
+ }
arrow.connection1 = jsPlumb.connect({
source: arrow.s1,
target: arrow.d1,
arrows.push(arrow);
}
+var compare_by_sort_key = function(refutation_lines, toplay, 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, toplay, a, b) {
+ var sa = parseInt(refutation_lines[b].score_sort_key);
+ var sb = parseInt(refutation_lines[a].score_sort_key);
+ if (toplay == 'B') {
+ return sb - sa;
+ } else {
+ return sa - sb;
+ }
+}
+
// Fake multi-PV using the refutation lines. Find all “relevant” moves,
// sorted by quality, descending.
var find_nonstupid_moves = function(data, margin) {
moves.push(move);
}
}
- moves = moves.sort(function(a, b) { return parseInt(data.refutation_lines[b].score_sort_key) - parseInt(data.refutation_lines[a].score_sort_key); });
+ moves = moves.sort(function(a, b) { return compare_by_score(data.refutation_lines, data.position.toplay, a, b) });
moves.unshift(data.pv_uci[0]);
return moves;
return String(x).split('').reverse().join('').replace(/(\d{3}\B)/g, '$1,').split('').reverse().join('');
}
-var print_pv = function(pretty_pv, move_num, toplay, limit) {
+var print_pv = function(fen, uci_pv, pretty_pv, move_num, toplay, limit) {
+ display_lines.push({
+ start_fen: fen,
+ uci_pv: uci_pv,
+ pretty_pv: pretty_pv
+ });
+
var pv = '';
var i = 0;
if (toplay == 'B') {
- pv = move_num + '. … ' + pretty_pv[0];
+ var move = "<a class=\"move\" href=\"javascript:show_line(" + (display_lines.length - 1) + ", " + 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\" href=\"javascript:show_line(" + (display_lines.length - 1) + ", " + i + ");\">" + pretty_pv[i] + "</a>";
+
if (toplay == 'W') {
if (i > limit) {
return pv + ' (…)';
if (pv != '') {
pv += ' ';
}
- pv += move_num + '. ' + pretty_pv[i];
+ pv += move_num + '. ' + move;
++move_num;
toplay = 'B';
} else {
- pv += ' ' + pretty_pv[i];
+ pv += ' ' + move;
toplay = 'W';
}
}
return pv;
}
-var compare_by_sort_key = function(data, a, b) {
- var ska = data.refutation_lines[a].sort_key;
- var skb = data.refutation_lines[b].sort_key;
- if (ska < skb) return -1;
- if (ska > skb) return 1;
- return 0;
-};
-
var update_highlight = function() {
$("#board").find('.square-55d63').removeClass('nonuglyhighlight');
- if (highlight_from !== undefined && highlight_to !== undefined) {
+ if (current_display_line === null && highlight_from !== undefined && highlight_to !== undefined) {
$("#board").find('.square-' + highlight_from).addClass('nonuglyhighlight');
$("#board").find('.square-' + highlight_to).addClass('nonuglyhighlight');
}
}
+var update_refutation_lines = function(board) {
+ if (display_lines.length > 1) {
+ display_lines = [ display_lines[0] ];
+ }
+
+ var tbl = $("#refutationlines");
+ tbl.empty();
+
+ moves = [];
+ for (var move in refutation_lines) {
+ moves.push(move);
+ }
+ var compare = sort_refutation_lines_by_score ? compare_by_score : compare_by_sort_key;
+ moves = moves.sort(function(a, b) { return compare(refutation_lines, toplay, a, b) });
+ for (var i = 0; i < moves.length; ++i) {
+ var line = refutation_lines[moves[i]];
+
+ var tr = document.createElement("tr");
+
+ var move_td = document.createElement("td");
+ tr.appendChild(move_td);
+ $(move_td).addClass("move");
+ if (line.pv_uci.length == 0) {
+ $(move_td).text(line.pretty_move);
+ } else {
+ 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");
+ tr.appendChild(score_td);
+ $(score_td).addClass("score");
+ $(score_td).text(line.pretty_score);
+
+ var depth_td = document.createElement("td");
+ tr.appendChild(depth_td);
+ $(depth_td).addClass("depth");
+ $(depth_td).text("d" + line.depth);
+
+ var pv_td = document.createElement("td");
+ tr.appendChild(pv_td);
+ $(pv_td).addClass("pv");
+ $(pv_td).html(print_pv(fen, line.pv_uci, line.pv_pretty, move_num, toplay, 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(0)\">Move</a>");
+ $("#sortbyscore1").html("<strong>Score</strong>");
+ } else {
+ $("#sortbyscore0").html("<strong>Move</strong>");
+ $("#sortbyscore1").html("<a href=\"javascript:resort_refutation_lines(1)\">Score</a>");
+ }
+}
+
var update_board = function(board, data, num_viewers) {
+ display_lines = [];
+
// The headline.
var headline = 'Analysis';
if (data.position.last_move !== 'none') {
}
// Update the board itself.
- board.position(data.position.fen);
+ fen = data.position.fen;
+ update_displayed_line();
if (data.position.last_move_uci) {
highlight_from = data.position.last_move_uci.substr(0, 2);
update_highlight();
// Print the PV.
- var pv = print_pv(data.pv_pretty, data.position.move_num, data.position.toplay);
- $("#pv").text(pv);
+ $("#pv").html(print_pv(data.position.fen, data.pv_uci, data.pv_pretty, data.position.move_num, data.position.toplay));
// Update the PV arrow.
clear_arrows();
}
}
- // Show the refutation lines.
- var tbl = $("#refutationlines");
- tbl.empty();
+ // Update the refutation lines.
+ fen = data.position.fen;
+ move_num = data.position.move_num;
+ toplay = data.position.toplay;
+ refutation_lines = data.refutation_lines;
+ update_refutation_lines(board);
- moves = [];
- for (var move in data.refutation_lines) {
- moves.push(move);
- }
- moves = moves.sort(function(a, b) { return compare_by_sort_key(data, a, b) });
- for (var i = 0; i < moves.length; ++i) {
- var line = data.refutation_lines[moves[i]];
+ // Next update.
+ setTimeout(function() { request_update(board); }, 100);
+}
- var tr = document.createElement("tr");
+var resort_refutation_lines = function(sort_by_score) {
+ sort_refutation_lines_by_score = sort_by_score;
+ update_refutation_lines(board);
+}
- var move_td = document.createElement("td");
- tr.appendChild(move_td);
- $(move_td).addClass("move");
- $(move_td).text(line.pretty_move);
+var show_line = function(line_num, move_num) {
+ if (line_num == -1) {
+ current_display_line = null;
+ current_display_move = null;
+ } else {
+ current_display_line = display_lines[line_num];
+ current_display_move = move_num;
+ }
+ update_displayed_line();
+ update_highlight();
+ redraw_arrows();
+}
- var score_td = document.createElement("td");
- tr.appendChild(score_td);
- $(score_td).addClass("score");
- $(score_td).text(line.pretty_score);
+var prev_move = function() {
+ --current_display_move;
+ update_displayed_line();
+}
- var depth_td = document.createElement("td");
- tr.appendChild(depth_td);
- $(depth_td).addClass("depth");
- $(depth_td).text("d" + line.depth);
+var next_move = function() {
+ ++current_display_move;
+ update_displayed_line();
+}
- var pv_td = document.createElement("td");
- tr.appendChild(pv_td);
- $(pv_td).addClass("pv");
- $(pv_td).text(print_pv(line.pv_pretty, data.position.move_num, data.position.toplay, 10));
+var update_displayed_line = function() {
+ if (current_display_line === null) {
+ $("#linenav").hide();
+ $("#linemsg").show();
+ board.position(fen);
+ return;
+ }
- tbl.append(tr);
+ $("#linenav").show();
+ $("#linemsg").hide();
+
+ if (current_display_move == 0) {
+ $("#prevmove").html("Previous");
+ } else {
+ $("#prevmove").html("<a href=\"javascript:prev_move();\">Previous</a></span>");
+ }
+ if (current_display_move == current_display_line.uci_pv.length - 1) {
+ $("#nextmove").html("Next");
+ } else {
+ $("#nextmove").html("<a href=\"javascript:next_move();\">Next</a></span>");
}
- // Next update.
- setTimeout(function() { request_update(board); }, 100);
+ hiddenboard.position(current_display_line.start_fen, false);
+ for (var i = 0; i <= current_display_move; ++i) {
+ var move = current_display_line.uci_pv[i];
+ move = move.substr(0, 2) + "-" + move.substr(2, 4);
+ hiddenboard.move(move, false);
+ }
+ board.position(hiddenboard.position());
}
var init = function() {
// Create board.
board = new ChessBoard('board', 'start');
+ hiddenboard = new ChessBoard('hiddenboard', 'start');
request_update(board);
$(window).resize(function() {
});
};
$(document).ready(init);
-
-})();