* @type {Number}
* @const
* @private */
-var SCRIPT_VERSION = 2016032202;
+var SCRIPT_VERSION = 2016091401;
/**
* The current backend URL.
location.reload(true);
}
- possibly_play_sound(current_analysis_data, new_data);
- current_analysis_data = new_data;
- update_board();
- update_num_viewers(num_viewers);
+ // Verify that the PV makes sense.
+ var valid = true;
+ if (new_data['pv']) {
+ var hiddenboard = new Chess(new_data['position']['fen']);
+ for (var i = 0; i < new_data['pv'].length; ++i) {
+ if (hiddenboard.move(new_data['pv'][i]) === null) {
+ valid = false;
+ break;
+ }
+ }
+ }
+
+ var timeout = 100;
+ if (valid) {
+ possibly_play_sound(current_analysis_data, new_data);
+ current_analysis_data = new_data;
+ update_board();
+ update_num_viewers(num_viewers);
+ } else {
+ console.log("Received invalid update, waiting five seconds and trying again.");
+ location.reload(true);
+ }
// Next update.
- current_analysis_request_timer = setTimeout(function() { request_update(); }, 100);
+ current_analysis_request_timer = setTimeout(function() { request_update(); }, timeout);
}).fail(function(jqXHR, textStatus, errorThrown) {
if (textStatus === "abort") {
// Aborted because we are switching backends. Abandon and don't retry,
if (displayed_analysis_data) {
// Displaying some non-current position, pick out the last move
// from the history. This will work even if the fetch failed.
- last_move = format_halfmove_with_number(
- current_display_line.pv[current_display_move],
- current_display_move + 1);
- headline += ' after ' + last_move;
+ if (current_display_move !== -1) {
+ last_move = format_halfmove_with_number(
+ current_display_line.pv[current_display_move],
+ current_display_move);
+ headline += ' after ' + last_move;
+ }
} else if (data['position']['last_move'] !== 'none') {
+ // Find the previous move.
+ var previous_move_num, previous_toplay;
+ if (data['position']['toplay'] == 'B') {
+ previous_move_num = data['position']['move_num'];
+ previous_toplay = 'W';
+ } else {
+ previous_move_num = data['position']['move_num'] - 1;
+ previous_toplay = 'B';
+ }
+
last_move = format_move_with_number(
data['position']['last_move'],
- data['position']['move_num'],
- data['position']['toplay'] == 'W');
+ previous_move_num,
+ previous_toplay == 'W');
headline += ' after ' + last_move;
} else {
last_move = null;
if (data['position'] && 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 if (current_display_line_is_history && current_display_move >= 0) {
+ } else if (current_display_line_is_history && current_display_line && current_display_move >= 0) {
// We don't have historic analysis for this position, but we
// can reconstruct what the last move was by just replaying
// from the start.
for (var i = 1; i < alt_moves.length && i < 3; ++i) {
hiddenboard = new Chess(base_fen);
var move = hiddenboard.move(alt_moves[i]);
- create_arrow(move.from, move.to, '#f66', 1, 10);
+ if (move !== null) {
+ create_arrow(move.from, move.to, '#f66', 1, 10);
+ }
}
}
chartRangeMin: min_score,
chartRangeMax: max_score,
tooltipFormatter: function(sparkline, options, fields) {
- return format_tooltip(data, fields[0].offset + first_move_num);
+ // score_history contains the Nth _position_, but format_tooltip
+ // wants to format the Nth _move_; thus the -1.
+ return format_tooltip(data, fields[0].offset + first_move_num - 1);
}
});
} else {
/**
* @param {string} move
- * @param {Number} move_num
- * @param {boolean} white_to_play
+ * @param {Number} move_num Move number of this move.
+ * @param {boolean} white_to_play Whether white is to play this move.
*/
var format_move_with_number = function(move, move_num, white_to_play) {
var ret;
if (white_to_play) {
- ret = (move_num - 1) + '… ';
- } else {
ret = move_num + '. ';
+ } else {
+ ret = move_num + '… ';
}
ret += move;
return ret;
/**
* @param {string} move
- * @param {Number} halfmove_num
+ * @param {Number} halfmove_num Half-move number that is to be played,
+ * starting from 0.
*/
var format_halfmove_with_number = function(move, halfmove_num) {
return format_move_with_number(
* @param {Number} halfmove_num
*/
var format_tooltip = function(data, halfmove_num) {
- if (data['score_history'][halfmove_num] ||
- halfmove_num === data['position']['history'].length) {
+ if (data['score_history'][halfmove_num + 1] ||
+ (halfmove_num + 1) === data['position']['history'].length) {
+ // Position is in the history, or it is the current position
+ // (which is implicitly tacked onto the history).
var move;
var short_score;
- if (halfmove_num === data['position']['history'].length) {
+ if ((halfmove_num + 1) === data['position']['history'].length) {
move = data['position']['last_move'];
short_score = format_short_score(data['score']);
} else {
move = data['position']['history'][halfmove_num];
- short_score = format_short_score(data['score_history'][halfmove_num]);
+ short_score = format_short_score(data['score_history'][halfmove_num + 1]);
+ }
+ if (halfmove_num === -1) {
+ return "Start position: " + short_score;
+ } else {
+ var move_with_number = format_halfmove_with_number(move, halfmove_num);
+ return "After " + move_with_number + ": " + short_score;
}
- var move_with_number = format_halfmove_with_number(move, halfmove_num);
-
- return "After " + move_with_number + ": " + short_score;
} else {
- for (var i = halfmove_num; i --> 0; ) {
+ for (var i = halfmove_num; i --> -1; ) {
if (data['score_history'][i]) {
var move = data['position']['history'][i];
- return "[Analysis kept from " + format_halfmove_with_number(move, i) + "]";
+ if (i === -1) {
+ return "[Analysis kept from start position]";
+ } else {
+ return "[Analysis kept from " + format_halfmove_with_number(move, i) + "]";
+ }
}
}
}
projects / remoteglot / blobdiff