-var board = [];
+var board = null;
+var hiddenboard = null;
var arrows = [];
var arrow_targets = [];
var occupied_by_arrows = [];
-
-var request_update = function(board, first) {
+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?first=" + first
- url: "http://analysis.sesse.net:5000/analysis.pl?first=" + first
- }).done(function(data) {
- update_board(board, data);
+ url: "http://analysis.sesse.net/analysis.pl?ims=" + ims + "&unique=" + unique
+ //url: "http://analysis.sesse.net:5000/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(board, data, num_viewers);
+ }).fail(function() {
+ // Wait ten seconds, then try again.
+ setTimeout(function() { request_update(board); }, 10000);
});
}
var clear_arrows = function() {
for (var i = 0; i < arrows.length; ++i) {
- jsPlumb.detach(arrows[i]);
+ if (arrows[i].connection1) {
+ jsPlumb.detach(arrows[i].connection1);
+ }
+ if (arrows[i].connection2) {
+ jsPlumb.detach(arrows[i].connection2);
+ }
}
arrows = [];
}
}
+var redraw_arrows = function() {
+ for (var i = 0; i < arrows.length; ++i) {
+ position_arrow(arrows[i]);
+ }
+}
+
var sign = function(x) {
if (x > 0) {
return 1;
arrow_targets.push(elem);
return elem.id;
}
-
-var create_arrow = function(from_square, to_square, fg_color, line_width, arrow_size) {
- var from_col = from_square.charCodeAt(0) - "a1".charCodeAt(0);
- var from_row = from_square.charCodeAt(1) - "a1".charCodeAt(1);
- var to_col = to_square.charCodeAt(0) - "a1".charCodeAt(0);
- var to_row = to_square.charCodeAt(1) - "a1".charCodeAt(1);
-
+
+var position_arrow = function(arrow) {
var zoom_factor = $("#board").width() / 400.0;
- line_width *= zoom_factor;
- arrow_size *= zoom_factor;
+ var line_width = arrow.line_width * zoom_factor;
+ var arrow_size = arrow.arrow_size * zoom_factor;
- var square_width = Math.floor(($("#board").width() - 1) / 8);
- var from_y = (7 - from_row + 0.5)*square_width + 1;
- var to_y = (7 - to_row + 0.5)*square_width + 1;
- var from_x = (from_col + 0.5)*square_width + 1;
- var to_x = (to_col + 0.5)*square_width + 1;
+ 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 dx = to_x - from_x;
var dy = to_y - from_y;
var len = Math.sqrt(dx * dx + dy * dy);
dx /= len;
dy /= len;
-
- // Create arrow.
- var s1 = add_target();
- var d1 = add_target();
- var s1v = add_target();
- var d1v = add_target();
- var pos = $("#board").position();
- $("#" + s1).css({ top: pos.top + from_y + (0.5 * arrow_size) * dy, left: pos.left + from_x + (0.5 * arrow_size) * dx });
- $("#" + d1).css({ top: pos.top + to_y - (0.5 * arrow_size) * dy, left: pos.left + to_x - (0.5 * arrow_size) * dx });
- $("#" + s1v).css({ top: pos.top + from_y - 0 * dy, left: pos.left + from_x - 0 * dx });
- $("#" + d1v).css({ top: pos.top + to_y + 0 * dy, left: pos.left + to_x + 0 * dx });
- var connection1 = jsPlumb.connect({
- source: s1,
- target: d1,
+ var pos = $(".square-a8").position();
+ $("#" + arrow.s1).css({ top: pos.top + from_y + (0.5 * arrow_size) * dy, left: pos.left + from_x + (0.5 * arrow_size) * dx });
+ $("#" + arrow.d1).css({ top: pos.top + to_y - (0.5 * arrow_size) * dy, left: pos.left + to_x - (0.5 * arrow_size) * dx });
+ $("#" + arrow.s1v).css({ top: pos.top + from_y - 0 * dy, left: pos.left + from_x - 0 * dx });
+ $("#" + arrow.d1v).css({ top: pos.top + to_y + 0 * dy, left: pos.left + to_x + 0 * dx });
+
+ if (arrow.connection1) {
+ jsPlumb.detach(arrow.connection1);
+ }
+ 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,
connector:["Straight"],
cssClass:"c1",
endpoint:"Blank",
anchor:"Continuous",
paintStyle:{
lineWidth:line_width,
- strokeStyle:fg_color,
+ strokeStyle:arrow.fg_color,
outlineWidth:1,
outlineColor:"#666",
opacity:"60%"
}
- });
- var connection2 = jsPlumb.connect({
- source: s1v,
- target: d1v,
+ });
+ arrow.connection2 = jsPlumb.connect({
+ source: arrow.s1v,
+ target: arrow.d1v,
connector:["Straight"],
cssClass:"vir",
endpoint:"Blank",
anchor:"Continuous",
paintStyle:{
lineWidth:0,
- strokeStyle:fg_color,
+ strokeStyle:arrow.fg_color,
outlineWidth:0,
- outlineColor:"#666",
+ outlineColor:"#666"
},
overlays : [
["Arrow", {
location:1.0,
width: arrow_size,
length: arrow_size,
- paintStyle:{
+ paintStyle: {
lineWidth:line_width,
- strokeStyle:"#000",
- },
+ strokeStyle:"#000"
+ }
}]
]
});
- arrows.push(connection1);
- arrows.push(connection2);
+}
+
+var create_arrow = function(from_square, to_square, fg_color, line_width, arrow_size) {
+ var from_col = from_square.charCodeAt(0) - "a1".charCodeAt(0);
+ var from_row = from_square.charCodeAt(1) - "a1".charCodeAt(1);
+ var to_col = to_square.charCodeAt(0) - "a1".charCodeAt(0);
+ var to_row = to_square.charCodeAt(1) - "a1".charCodeAt(1);
+
+ // Create arrow.
+ var arrow = {
+ s1: add_target(),
+ d1: add_target(),
+ s1v: add_target(),
+ d1v: add_target(),
+ from_col: from_col,
+ from_row: from_row,
+ to_col: to_col,
+ to_row: to_row,
+ line_width: line_width,
+ arrow_size: arrow_size,
+ fg_color: fg_color
+ };
+
+ position_arrow(arrow);
+ arrows.push(arrow);
+}
+
+var compare_by_sort_key = function(refutation_lines, 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, a, b) {
+ var sa = parseInt(refutation_lines[b].score_sort_key);
+ var sb = parseInt(refutation_lines[a].score_sort_key);
+ return sa - sb;
}
// Fake multi-PV using the refutation lines. Find all “relevant” moves,
var best_score = undefined;
var pv_score = undefined;
for (var move in data.refutation_lines) {
- var score = data.refutation_lines[move].score_sort_key;
+ var score = parseInt(data.refutation_lines[move].score_sort_key);
if (move == data.pv_uci[0]) {
pv_score = score;
}
// The PV move will always be first.
var moves = [];
for (var move in data.refutation_lines) {
- var score = data.refutation_lines[move].score_sort_key;
+ var score = parseInt(data.refutation_lines[move].score_sort_key);
if (move != data.pv_uci[0] && best_score - score <= margin) {
moves.push(move);
}
}
- moves = moves.sort(function(a, b) { return data.refutation_lines[b].score_sort_key - data.refutation_lines[a].score_sort_key; });
+ moves = moves.sort(function(a, b) { return compare_by_score(data.refutation_lines, 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;
}
- ++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 (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();
+
+ var 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, 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 = [];
-var update_board = function(board, data) {
// The headline.
var headline = 'Analysis';
if (data.position.last_move !== 'none') {
- headline += ' after ' + data.position.move_num + '. ';
+ headline += ' after '
if (data.position.toplay == 'W') {
- headline += '… ';
+ headline += (data.position.move_num-1) + '… ';
+ } else {
+ headline += data.position.move_num + '. ';
}
headline += data.position.last_move;
}
$("#headline").text(headline);
+ if (num_viewers === null) {
+ $("#numviewers").text("");
+ } else if (num_viewers == 1) {
+ $("#numviewers").text("You are the only current viewer");
+ } else {
+ $("#numviewers").text(num_viewers + " current viewers");
+ }
+
// The score.
if (data.score !== null) {
$("#score").text(data.score);
}
// Update the board itself.
- board.position(data.position.fen);
+ fen = data.position.fen;
+ update_displayed_line();
- $("#board").find('.square-55d63').removeClass('nonuglyhighlight');
if (data.position.last_move_uci) {
- var from = data.position.last_move_uci.substr(0, 2);
- var to = data.position.last_move_uci.substr(2, 4);
- $("#board").find('.square-' + from).addClass('nonuglyhighlight');
- $("#board").find('.square-' + to).addClass('nonuglyhighlight');
+ highlight_from = data.position.last_move_uci.substr(0, 2);
+ highlight_to = data.position.last_move_uci.substr(2, 4);
+ } else {
+ highlight_from = highlight_to = undefined;
}
+ 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, 0); }, 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, 1);
-
+ request_update(board);
+ $(window).resize(function() {
+ board.resize();
+ update_highlight();
+ redraw_arrows();
+ });
};
$(document).ready(init);