Support promotion when displaying lines.

[remoteglot] / www / js / remoteglot.js

diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js
index b42aa8e4ce0eb139e18ff95be8d28dd5d58b9aa1..bf43403ef7a6b7a3420103320b95872a37770f02 100644 (file)
--- a/www/js/remoteglot.js
+++ b/www/js/remoteglot.js
@@ -603,7 +603,7 @@ var update_board = function(data, num_viewers) {
 
        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);
+               highlight_to = data['position']['last_move_uci'].substr(2, 2);
        } else {
                highlight_from = highlight_to = undefined;
        }
@@ -627,7 +627,7 @@ var update_board = function(data, num_viewers) {
                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)) ||
+                       if ((i >= 2 && from != data['pv_uci'][i - 2].substr(2, 2)) ||
                             interfering_arrow(from, to)) {
                                break;
                        }
@@ -637,7 +637,7 @@ var update_board = function(data, num_viewers) {
                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);
                }
        }
 
@@ -668,7 +668,7 @@ var update_board = function(data, num_viewers) {
 
                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);
                }
        }
 
@@ -763,9 +763,18 @@ var update_displayed_line = function() {
        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);
+               var promo = move.substr(4, 1);
+               move = move.substr(0, 2) + "-" + move.substr(2, 2);
                hiddenboard.move(move, false);
 
+               // Do promotion if needed.
+               if (promo != "") {
+                       var pos = hiddenboard.position();
+                       var target = move.substr(3, 2);
+                       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