+(function() {
+
+/** @type {window.ChessBoard} @private */
var board = null;
+
+/** @type {window.ChessBoard} @private */
var hiddenboard = null;
+
+/** @type {Array.<{
+ * from_col: number,
+ * from_row: number,
+ * to_col: number,
+ * to_row: number,
+ * line_width: number,
+ * arrow_size: number,
+ * fg_color: string
+ * }>}
+ * @private
+ */
var arrows = [];
-var arrow_targets = [];
+
+/** @type {Array.<Array.<boolean>>} */
var occupied_by_arrows = [];
+
var refutation_lines = [];
+
+/** @type {!number} @private */
var move_num = 1;
+
+/** @type {!string} @private */
var toplay = 'W';
+
+/** @type {number} @private */
var ims = 0;
-var sort_refutation_lines_by_score = 0;
+
+/** @type {boolean} @private */
+var sort_refutation_lines_by_score = true;
+
+/** @type {boolean} @private */
+var truncate_display_history = true;
+
+/** @type {!string|undefined} @private */
var highlight_from = undefined;
+
+/** @type {!string|undefined} @private */
var highlight_to = undefined;
-var unique = Math.random();
+/** @type {?jQuery} @private */
+var highlighted_move = null;
+
+/** @type {?number} @private */
+var unique = null;
+
+/** The current position on the board, represented as a FEN string.
+ * @type {?string}
+ * @private
+ */
var fen = null;
+
+/** @typedef {{
+ * start_fen: string,
+ * uci_pv: Array.<string>,
+ * pretty_pv: Array.<string>,
+ * line_num: number
+ * }} DisplayLine
+ */
+
+/** @type {Array.<DisplayLine>}
+ * @private
+ */
var display_lines = [];
+
+/** @type {?DisplayLine} @private */
var current_display_line = null;
+
+/** @type {?number} @private */
var current_display_move = null;
-var request_update = function(board) {
+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
//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);
+ update_board(data, num_viewers);
}).fail(function() {
// Wait ten seconds, then try again.
- setTimeout(function() { request_update(board); }, 10000);
+ setTimeout(function() { request_update(); }, 10000);
});
}
var clear_arrows = function() {
for (var i = 0; i < arrows.length; ++i) {
- if (arrows[i].connection1) {
- jsPlumb.detach(arrows[i].connection1);
- }
- if (arrows[i].connection2) {
- jsPlumb.detach(arrows[i].connection2);
+ if (arrows[i].svg) {
+ arrows[i].svg.parentElement.removeChild(arrows[i].svg);
+ delete arrows[i].svg;
}
}
arrows = [];
- for (var i = 0; i < arrow_targets.length; ++i) {
- document.body.removeChild(arrow_targets[i]);
- }
- arrow_targets = [];
-
- occupied_by_arrows = [];
+ occupied_by_arrows = [];
for (var y = 0; y < 8; ++y) {
occupied_by_arrows.push([false, false, false, false, false, false, false, false]);
}
}
}
+/** @param {!number} x
+ * @return {!number}
+ */
var sign = function(x) {
if (x > 0) {
return 1;
}
}
-// See if drawing this arrow on the board would cause unduly amount of confusion.
+/** See if drawing this arrow on the board would cause unduly amount of confusion.
+ * @param {!string} from The square the arrow is from (e.g. e4).
+ * @param {!string} to The square the arrow is to (e.g. e4).
+ * @return {boolean}
+ */
var interfering_arrow = function(from, to) {
var from_col = from.charCodeAt(0) - "a1".charCodeAt(0);
var from_row = from.charCodeAt(1) - "a1".charCodeAt(1);
return false;
}
-var add_target = function() {
- var elem = document.createElement("div");
- $(elem).addClass("window");
- elem.id = "target" + arrow_targets.length;
- document.body.appendChild(elem);
- arrow_targets.push(elem);
- return elem.id;
+/** Find a point along the coordinate system given by the given line,
+ * <t> units forward from the start of the line, <u> units to the right of it.
+ * @param {!number} x1
+ * @param {!number} x2
+ * @param {!number} y1
+ * @param {!number} y2
+ * @param {!number} t
+ * @param {!number} u
+ * @return {!string} The point in "x y" form, suitable for SVG paths.
+ */
+var point_from_start = function(x1, y1, x2, y2, t, u) {
+ var dx = x2 - x1;
+ var dy = y2 - y1;
+
+ var norm = 1.0 / Math.sqrt(dx * dx + dy * dy);
+ dx *= norm;
+ dy *= norm;
+
+ var x = x1 + dx * t + dy * u;
+ var y = y1 + dy * t - dx * u;
+ return x + " " + y;
+}
+
+/** Find a point along the coordinate system given by the given line,
+ * <t> units forward from the end of the line, <u> units to the right of it.
+ * @param {!number} x1
+ * @param {!number} x2
+ * @param {!number} y1
+ * @param {!number} y2
+ * @param {!number} t
+ * @param {!number} u
+ * @return {!string} The point in "x y" form, suitable for SVG paths.
+ */
+var point_from_end = function(x1, y1, x2, y2, t, u) {
+ var dx = x2 - x1;
+ var dy = y2 - y1;
+
+ var norm = 1.0 / Math.sqrt(dx * dx + dy * dy);
+ dx *= norm;
+ dy *= norm;
+
+ var x = x2 + dx * t + dy * u;
+ var y = y2 + dy * t - dx * u;
+ return x + " " + y;
}
-
+
var position_arrow = function(arrow) {
+ if (arrow.svg) {
+ arrow.svg.parentElement.removeChild(arrow.svg);
+ delete arrow.svg;
+ }
+ if (current_display_line !== null) {
+ 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 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;
- 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 });
- $("#" + arrow.d1v).css({ top: pos.top + to_y + 0 * dy, left: pos.left + to_x + 0 * dx });
-
- if (arrow.connection1) {
- jsPlumb.detach(arrow.connection1);
- }
- if (arrow.connection2) {
- jsPlumb.detach(arrow.connection2);
- }
- if (current_display_line !== null) {
- delete arrow.connection1;
- delete arrow.connection2;
- return;
- }
- arrow.connection1 = jsPlumb.connect({
- source: arrow.s1,
- target: arrow.d1,
- connector:["Straight"],
- cssClass:"c1",
- endpoint:"Blank",
- endpointClass:"c1Endpoint",
- anchor:"Continuous",
- paintStyle:{
- lineWidth:line_width,
- strokeStyle:arrow.fg_color,
- outlineWidth:1,
- outlineColor:"#666",
- opacity:"60%"
- }
- });
- arrow.connection2 = jsPlumb.connect({
- source: arrow.s1v,
- target: arrow.d1v,
- connector:["Straight"],
- cssClass:"vir",
- endpoint:"Blank",
- endpointClass:"c1Endpoint",
- anchor:"Continuous",
- paintStyle:{
- lineWidth:0,
- strokeStyle:arrow.fg_color,
- outlineWidth:0,
- outlineColor:"#666",
- },
- overlays : [
- ["Arrow", {
- cssClass:"l1arrow",
- location:1.0,
- width: arrow_size,
- length: arrow_size,
- paintStyle: {
- lineWidth:line_width,
- strokeStyle:"#000",
- },
- }]
- ]
- });
+ var SVG_NS = "http://www.w3.org/2000/svg";
+ var XHTML_NS = "http://www.w3.org/1999/xhtml";
+ var svg = document.createElementNS(SVG_NS, "svg");
+ svg.setAttribute("width", /** @type{number} */ ($("#board").width()));
+ svg.setAttribute("height", /** @type{number} */ ($("#board").height()));
+ svg.setAttribute("style", "position: absolute");
+ svg.setAttribute("position", "absolute");
+ svg.setAttribute("version", "1.1");
+ svg.setAttribute("class", "c1");
+ svg.setAttribute("xmlns", XHTML_NS);
+
+ var x1 = from_x;
+ var y1 = from_y;
+ var x2 = to_x;
+ var y2 = to_y;
+
+ // Draw the line.
+ var outline = document.createElementNS(SVG_NS, "path");
+ outline.setAttribute("d", "M " + point_from_start(x1, y1, x2, y2, arrow_size / 2, 0) + " L " + point_from_end(x1, y1, x2, y2, -arrow_size / 2, 0));
+ outline.setAttribute("xmlns", XHTML_NS);
+ outline.setAttribute("stroke", "#666");
+ outline.setAttribute("stroke-width", line_width + 2);
+ outline.setAttribute("fill", "none");
+ svg.appendChild(outline);
+
+ var path = document.createElementNS(SVG_NS, "path");
+ path.setAttribute("d", "M " + point_from_start(x1, y1, x2, y2, arrow_size / 2, 0) + " L " + point_from_end(x1, y1, x2, y2, -arrow_size / 2, 0));
+ path.setAttribute("xmlns", XHTML_NS);
+ path.setAttribute("stroke", arrow.fg_color);
+ path.setAttribute("stroke-width", line_width);
+ path.setAttribute("fill", "none");
+ svg.appendChild(path);
+
+ // Then the arrow head.
+ var head = document.createElementNS(SVG_NS, "path");
+ head.setAttribute("d",
+ "M " + point_from_end(x1, y1, x2, y2, 0, 0) +
+ " L " + point_from_end(x1, y1, x2, y2, -arrow_size, -arrow_size / 2) +
+ " L " + point_from_end(x1, y1, x2, y2, -arrow_size * .623, 0.0) +
+ " L " + point_from_end(x1, y1, x2, y2, -arrow_size, arrow_size / 2) +
+ " L " + point_from_end(x1, y1, x2, y2, 0, 0));
+ head.setAttribute("xmlns", XHTML_NS);
+ head.setAttribute("stroke", "#000");
+ head.setAttribute("stroke-width", "1");
+ head.setAttribute("fill", arrow.fg_color);
+ svg.appendChild(head);
+
+ $(svg).css({ top: pos.top, left: pos.left });
+ document.body.appendChild(svg);
+ arrow.svg = svg;
}
+/**
+ * @param {!string} from_square
+ * @param {!string} to_square
+ * @param {!string} fg_color
+ * @param {number} line_width
+ * @param {number} arrow_size
+ */
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);
// 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,
+ arrow_size: arrow_size,
fg_color: fg_color
};
}
var compare_by_sort_key = function(refutation_lines, a, b) {
- var ska = refutation_lines[a].sort_key;
- var skb = refutation_lines[b].sort_key;
+ 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);
+ var sa = parseInt(refutation_lines[b]['score_sort_key'], 10);
+ var sb = parseInt(refutation_lines[a]['score_sort_key'], 10);
return sa - sb;
}
-// Fake multi-PV using the refutation lines. Find all “relevant” moves,
-// sorted by quality, descending.
+/**
+ * Fake multi-PV using the refutation lines. Find all “relevant” moves,
+ * sorted by quality, descending.
+ *
+ * @param {!Object} data
+ * @param {number} margin The maximum number of centipawns worse than the
+ * best move can be and still be included.
+ * @return {Array.<string>} The UCI representation (e.g. e1g1) of all
+ * moves, in score order.
+ */
var find_nonstupid_moves = function(data, margin) {
// First of all, if there are any moves that are more than 0.5 ahead of
// the primary move, the refutation lines are probably bunk, so just
// kill them all.
var best_score = undefined;
var pv_score = undefined;
- for (var move in data.refutation_lines) {
- var score = parseInt(data.refutation_lines[move].score_sort_key);
- if (move == data.pv_uci[0]) {
+ for (var move in data['refutation_lines']) {
+ var score = parseInt(data['refutation_lines'][move]['score_sort_key'], 10);
+ if (move == data['pv_uci'][0]) {
pv_score = score;
}
if (best_score === undefined || score > best_score) {
best_score = score;
}
- if (!(data.refutation_lines[move].depth >= 8)) {
+ if (!(data['refutation_lines'][move]['depth'] >= 8)) {
return [];
}
}
// Now find all moves that are within “margin” of the best score.
// The PV move will always be first.
var moves = [];
- for (var move in data.refutation_lines) {
- var score = parseInt(data.refutation_lines[move].score_sort_key);
- if (move != data.pv_uci[0] && best_score - score <= margin) {
+ for (var move in data['refutation_lines']) {
+ var score = parseInt(data['refutation_lines'][move]['score_sort_key'], 10);
+ if (move != data['pv_uci'][0] && best_score - score <= margin) {
moves.push(move);
}
}
- moves = moves.sort(function(a, b) { return compare_by_score(data.refutation_lines, a, b) });
- moves.unshift(data.pv_uci[0]);
+ moves = moves.sort(function(a, b) { return compare_by_score(data['refutation_lines'], a, b) });
+ moves.unshift(data['pv_uci'][0]);
return moves;
}
+/**
+ * @param {number} x
+ * @return {!string}
+ */
var thousands = function(x) {
return String(x).split('').reverse().join('').replace(/(\d{3}\B)/g, '$1,').split('').reverse().join('');
}
-var print_pv = function(fen, uci_pv, pretty_pv, move_num, toplay, limit) {
+/**
+ * @param {!string} fen
+ * @param {Array.<string>} uci_pv
+ * @param {Array.<string>} pretty_pv
+ * @param {number} move_num
+ * @param {!string} toplay
+ * @param {number=} opt_limit
+ * @param {boolean=} opt_showlast
+ */
+var add_pv = function(fen, uci_pv, pretty_pv, move_num, toplay, opt_limit, opt_showlast) {
display_lines.push({
start_fen: fen,
uci_pv: uci_pv,
- pretty_pv: pretty_pv
+ pretty_pv: pretty_pv,
+ line_number: display_lines.length
});
+ return print_pv(display_lines.length - 1, pretty_pv, move_num, toplay, opt_limit, opt_showlast);
+}
+/**
+ * @param {number} line_num
+ * @param {Array.<string>} pretty_pv
+ * @param {number} move_num
+ * @param {!string} toplay
+ * @param {number=} opt_limit
+ * @param {boolean=} opt_showlast
+ */
+var print_pv = function(line_num, pretty_pv, move_num, toplay, opt_limit, opt_showlast) {
var pv = '';
var i = 0;
- if (toplay == 'B') {
- var move = "<a class=\"move\" href=\"javascript:show_line(" + (display_lines.length - 1) + ", " + 0 + ");\">" + pretty_pv[0] + "</a>";
+ 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,
+ // the UI should be to expand the history.
+ pv = '(<a class="move" href="javascript:collapse_history(false)">…</a>) ';
+ i = pretty_pv.length - opt_limit;
+ if (i % 2 == 1) {
+ ++i;
+ }
+ move_num += i / 2;
+ } else if (toplay == 'B') {
+ var move = "<a class=\"move\" id=\"automove" + line_num + "-0\" href=\"javascript:show_line(" + line_num + ", " + 0 + ");\">" + pretty_pv[0] + "</a>";
pv = move_num + '. … ' + move;
toplay = 'W';
- ++i;
+ ++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>";
+ var move = "<a class=\"move\" id=\"automove" + line_num + "-" + i + "\" href=\"javascript:show_line(" + line_num + ", " + i + ");\">" + pretty_pv[i] + "</a>";
if (toplay == 'W') {
- if (i > limit) {
+ if (i > opt_limit && !opt_showlast) {
return pv + ' (…)';
}
if (pv != '') {
return pv;
}
-var update_highlight = function() {
+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');
}
}
-var update_refutation_lines = function(board) {
- if (display_lines.length > 1) {
- display_lines = [ display_lines[0] ];
+var update_history = function() {
+ 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));
+ } else {
+ $("#history").html(
+ '(<a class="move" href="javascript:collapse_history(true)">collapse</a>) ' +
+ print_pv(0, display_lines[0].pretty_pv, 1, 'W'));
+ }
+}
+
+/**
+ * @param {!boolean} truncate_history
+ */
+var collapse_history = function(truncate_history) {
+ truncate_display_history = truncate_history;
+ update_history();
+}
+window['collapse_history'] = collapse_history;
+
+var update_refutation_lines = function() {
+ if (fen === null) {
+ return;
+ }
+ if (display_lines.length > 2) {
+ display_lines = [ display_lines[0], display_lines[1] ];
}
var tbl = $("#refutationlines");
tbl.empty();
- moves = [];
+ var moves = [];
for (var move in refutation_lines) {
moves.push(move);
}
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);
+ 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>";
+ 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);
+ $(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);
+ $(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));
+ $(pv_td).html(add_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>");
+ $("#sortbyscore0").html("<a href=\"javascript:resort_refutation_lines(false)\">Move</a>");
$("#sortbyscore1").html("<strong>Score</strong>");
} else {
$("#sortbyscore0").html("<strong>Move</strong>");
- $("#sortbyscore1").html("<a href=\"javascript:resort_refutation_lines(1)\">Score</a>");
+ $("#sortbyscore1").html("<a href=\"javascript:resort_refutation_lines(true)\">Score</a>");
}
}
-var update_board = function(board, data, num_viewers) {
+/**
+ * @param {Object} data
+ * @param {number} num_viewers
+ */
+var update_board = function(data, num_viewers) {
display_lines = [];
// The headline.
- var headline = 'Analysis';
- if (data.position.last_move !== 'none') {
- headline += ' after ' + data.position.move_num + '. ';
- if (data.position.toplay == 'W') {
- headline += '… ';
+ var headline;
+ if (data['position']['player_w'] && data['position']['player_b']) {
+ headline = data['position']['player_w'] + '–' +
+ data['position']['player_b'] + ', analysis';
+ } else {
+ headline = 'Analysis';
+ }
+ if (data['position']['last_move'] !== 'none') {
+ headline += ' after '
+ if (data['position']['toplay'] == 'W') {
+ headline += (data['position']['move_num']-1) + '… ';
+ } else {
+ headline += data['position']['move_num'] + '. ';
}
- headline += data.position.last_move;
+ headline += data['position']['last_move'];
}
$("#headline").text(headline);
$("#numviewers").text(num_viewers + " current viewers");
}
+ // The engine id.
+ if (data['id'] && data['id']['name'] !== null) {
+ $("#engineid").text(data['id']['name']);
+ }
+
// The score.
- if (data.score !== null) {
- $("#score").text(data.score);
+ if (data['score'] !== null) {
+ $("#score").text(data['score']);
+ }
+ if (data['short_score'] !== undefined) {
+ document.title = '(' + data['short_score'] + ') analysis.sesse.net';
+ } else {
+ document.title = 'analysis.sesse.net';
}
// The search stats.
- 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)';
+ 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)';
}
- if (data.tbhits && data.tbhits > 0) {
- if (data.tbhits == 1) {
- stats += ', one Nalimov hit';
+ if (data['tbhits'] && data['tbhits'] > 0) {
+ if (data['tbhits'] == 1) {
+ stats += ', one Syzygy hit';
} else {
- stats += ', ' + data.tbhits + ' Nalimov hits';
+ stats += ', ' + thousands(data['tbhits']) + ' Syzygy hits';
}
}
-
$("#searchstats").text(stats);
+ } else {
+ $("#searchstats").text("");
}
// Update the board itself.
- fen = 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);
- highlight_to = data.position.last_move_uci.substr(2, 4);
+ if (data['position']['last_move_uci']) {
+ highlight_from = data['position']['last_move_uci'].substr(0, 2);
+ highlight_to = data['position']['last_move_uci'].substr(2, 2);
} else {
highlight_from = highlight_to = undefined;
}
update_highlight();
+ // Print the history.
+ if (data['position']['history']) {
+ add_pv('start', data['position']['history'], data['position']['pretty_history'], 1, 'W', 8, true);
+ } else {
+ display_lines.push(null);
+ }
+ update_history();
+
// Print the PV.
- $("#pv").html(print_pv(data.position.fen, data.pv_uci, data.pv_pretty, data.position.move_num, data.position.toplay));
+ $("#pv").html(add_pv(data['position']['fen'], data['pv_uci'], data['pv_pretty'], data['position']['move_num'], data['position']['toplay']));
// Update the PV arrow.
clear_arrows();
- if (data.pv_uci.length >= 1) {
+ if (data['pv_uci'].length >= 1) {
// draw a continuation arrow as long as it's the same piece
- for (var i = 0; i < data.pv_uci.length; i += 2) {
- var from = data.pv_uci[i].substr(0, 2);
- var to = data.pv_uci[i].substr(2,4);
- if ((i >= 2 && from != data.pv_uci[i - 2].substr(2, 4)) ||
+ for (var i = 0; i < data['pv_uci'].length; i += 2) {
+ var from = data['pv_uci'][i].substr(0, 2);
+ var to = data['pv_uci'][i].substr(2,4);
+ if ((i >= 2 && from != data['pv_uci'][i - 2].substr(2, 2)) ||
interfering_arrow(from, to)) {
break;
}
var alt_moves = find_nonstupid_moves(data, 30);
for (var i = 1; i < alt_moves.length && i < 3; ++i) {
create_arrow(alt_moves[i].substr(0, 2),
- alt_moves[i].substr(2, 4), '#f66', 1, 10);
+ alt_moves[i].substr(2, 2), '#f66', 1, 10);
}
}
// See if all semi-reasonable moves have only one possible response.
- if (data.pv_uci.length >= 2) {
+ if (data['pv_uci'].length >= 2) {
var nonstupid_moves = find_nonstupid_moves(data, 300);
- var response = data.pv_uci[1];
+ var response = data['pv_uci'][1];
for (var i = 0; i < nonstupid_moves.length; ++i) {
- if (nonstupid_moves[i] == data.pv_uci[0]) {
+ if (nonstupid_moves[i] == data['pv_uci'][0]) {
// ignore the PV move for refutation lines.
continue;
}
- if (!data.refutation_lines ||
- !data.refutation_lines[nonstupid_moves[i]] ||
- !data.refutation_lines[nonstupid_moves[i]].pv_uci ||
- data.refutation_lines[nonstupid_moves[i]].pv_uci.length < 1) {
+ if (!data['refutation_lines'] ||
+ !data['refutation_lines'][nonstupid_moves[i]] ||
+ !data['refutation_lines'][nonstupid_moves[i]]['pv_uci'] ||
+ data['refutation_lines'][nonstupid_moves[i]]['pv_uci'].length < 1) {
// Incomplete PV, abort.
response = undefined;
break;
}
- var this_response = data.refutation_lines[nonstupid_moves[i]].pv_uci[1];
+ var this_response = data['refutation_lines'][nonstupid_moves[i]]['pv_uci'][1];
if (response !== this_response) {
// Different response depending on lines, abort.
response = undefined;
if (nonstupid_moves.length > 0 && response !== undefined) {
create_arrow(response.substr(0, 2),
- response.substr(2, 4), '#66f', 6, 20);
+ response.substr(2, 2), '#66f', 6, 20);
}
}
// 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);
+ fen = data['position']['fen'];
+ move_num = data['position']['move_num'];
+ toplay = data['position']['toplay'];
+ refutation_lines = data['refutation_lines'];
+ update_refutation_lines();
// Next update.
- setTimeout(function() { request_update(board); }, 100);
+ setTimeout(function() { request_update(); }, 100);
}
+/**
+ * @param {boolean} sort_by_score
+ */
var resort_refutation_lines = function(sort_by_score) {
sort_refutation_lines_by_score = sort_by_score;
- update_refutation_lines(board);
+ update_refutation_lines();
+}
+window['resort_refutation_lines'] = resort_refutation_lines;
+
+/**
+ * @param {boolean} truncate_history
+ */
+var set_truncate_history = function(truncate_history) {
+ truncate_display_history = truncate_history;
+ update_refutation_lines();
}
+window['set_truncate_history'] = set_truncate_history;
+/**
+ * @param {number} line_num
+ * @param {number} move_num
+ */
var show_line = function(line_num, move_num) {
if (line_num == -1) {
current_display_line = null;
update_highlight();
redraw_arrows();
}
+window['show_line'] = show_line;
var prev_move = function() {
- --current_display_move;
+ if (current_display_move > -1) {
+ --current_display_move;
+ }
update_displayed_line();
}
+window['prev_move'] = prev_move;
var next_move = function() {
- ++current_display_move;
+ if (current_display_line && current_display_move < current_display_line.pretty_pv.length - 1) {
+ ++current_display_move;
+ }
update_displayed_line();
}
+window['next_move'] = next_move;
var update_displayed_line = function() {
+ if (highlighted_move !== null) {
+ highlighted_move.removeClass('highlight');
+ }
if (current_display_line === null) {
$("#linenav").hide();
$("#linemsg").show();
$("#linenav").show();
$("#linemsg").hide();
- if (current_display_move == 0) {
+ if (current_display_move <= 0) {
$("#prevmove").html("Previous");
} else {
$("#prevmove").html("<a href=\"javascript:prev_move();\">Previous</a></span>");
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, 4);
+ 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.
+ if (move == "e1-g1" && hiddenboard.position().g1 == "wK") { // white O-O
+ hiddenboard.move("h1-f1", false);
+ } else if (move == "e1-c1" && hiddenboard.position().c1 == "wK") { // white O-O-O
+ hiddenboard.move("a1-d1", false);
+ } else if (move == "e8-g8" && hiddenboard.position().g8 == "bK") { // black O-O
+ hiddenboard.move("h8-f8", false);
+ } else if (move == "e8-c8" && hiddenboard.position().c8 == "bK") { // black O-O-O
+ hiddenboard.move("a8-d8", false);
+ }
}
+
+ highlighted_move = $("#automove" + current_display_line.line_number + "-" + current_display_move);
+ highlighted_move.addClass('highlight');
+
board.position(hiddenboard.position());
}
var init = function() {
+ unique = get_unique();
+
// Create board.
- board = new ChessBoard('board', 'start');
- hiddenboard = new ChessBoard('hiddenboard', 'start');
+ board = new window.ChessBoard('board', 'start');
+ hiddenboard = new window.ChessBoard('hiddenboard', 'start');
- request_update(board);
+ request_update();
$(window).resize(function() {
board.resize();
update_highlight();
redraw_arrows();
});
+ $(window).keyup(function(event) {
+ if (event.which == 39) {
+ next_move();
+ } else if (event.which == 37) {
+ prev_move();
+ }
+ });
};
$(document).ready(init);
+
+})();
projects / remoteglot / blobdiff