-var board = [];
+var board = null;
+var hiddenboard = null;
var arrows = [];
var arrow_targets = [];
var occupied_by_arrows = [];
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
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,
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';
}
}
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 move_td = document.createElement("td");
tr.appendChild(move_td);
$(move_td).addClass("move");
- $(move_td).text(line.pretty_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);
var pv_td = document.createElement("td");
tr.appendChild(pv_td);
$(pv_td).addClass("pv");
- $(pv_td).text(print_pv(line.pv_pretty, move_num, toplay, 10));
+ $(pv_td).html(print_pv(fen, line.pv_uci, line.pv_pretty, move_num, toplay, 10));
tbl.append(tr);
}
}
// 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();
}
// 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);
}
+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 prev_move = function() {
+ --current_display_move;
+ update_displayed_line();
+}
+
+var next_move = function() {
+ ++current_display_move;
+ update_displayed_line();
+}
+
+var update_displayed_line = function() {
+ if (current_display_line === null) {
+ $("#linenav").hide();
+ $("#linemsg").show();
+ board.position(fen);
+ return;
+ }
+
+ $("#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>");
+ }
+
+ 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() {