X-Git-Url: https://git.sesse.net/?p=remoteglot;a=blobdiff_plain;f=www%2Fjs%2Fremoteglot.js;h=43b2e1ddbb7c304b2450349fbaef79e23e355d92;hp=5d12c43709dcda3da8f56d5de9774fd40054bf5c;hb=ab94a7c05a495c1d8f9ea30e2268bbc72f17b303;hpb=35725006988891aae7234a39c4f7c603c8b17bd9

diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js
index 5d12c43..43b2e1d 100644
--- a/www/js/remoteglot.js
+++ b/www/js/remoteglot.js
@@ -137,12 +137,15 @@ var request_update = function() {
 		sync_server_clock(xhr.getResponseHeader('Date'));
 		ims = xhr.getResponseHeader('X-RGLM');
 		var num_viewers = xhr.getResponseHeader('X-RGNV');
-		possibly_play_sound(current_analysis_data, data);
+		var new_data;
 		if (Array.isArray(data)) {
-			current_analysis_data = JSON_delta.patch(current_analysis_data, data);
+			new_data = JSON.parse(JSON.stringify(current_analysis_data));
+			JSON_delta.patch(new_data, data);
 		} else {
-			current_analysis_data = data;
+			new_data = data;
 		}
+		possibly_play_sound(current_analysis_data, new_data);
+		current_analysis_data = new_data;
 		update_board(current_analysis_data, displayed_analysis_data);
 		update_num_viewers(num_viewers);
 
@@ -1099,6 +1102,41 @@ var update_historic_analysis = function() {
 	});
 }
 
+/**
+ * @param {string} fen
+ */
+var update_imbalance = function(fen) {
+	var hiddenboard = new Chess(fen);
+	var imbalance = {'k': 0, 'q': 0, 'r': 0, 'b': 0, 'n': 0, 'p': 0};
+	for (var row = 0; row < 8; ++row) {
+		for (var col = 0; col < 8; ++col) {
+			var col_text = String.fromCharCode('a1'.charCodeAt(0) + col);
+			var row_text = String.fromCharCode('a1'.charCodeAt(1) + row);
+			var square = col_text + row_text;
+			var contents = hiddenboard.get(square);
+			if (contents !== null) {
+				if (contents.color === 'w') {
+					++imbalance[contents.type];
+				} else {
+					--imbalance[contents.type];
+				}
+			}
+		}
+	}
+	var white_imbalance = '';
+	var black_imbalance = '';
+	for (var piece in imbalance) {
+		for (var i = 0; i < imbalance[piece]; ++i) {
+			white_imbalance += '<img src="img/chesspieces/wikipedia/w' + piece.toUpperCase() + '.png" alt="" style="width: 15px;height: 15px;">';
+		}
+		for (var i = 0; i < -imbalance[piece]; ++i) {
+			black_imbalance += '<img src="img/chesspieces/wikipedia/b' + piece.toUpperCase() + '.png" alt="" style="width: 15px;height: 15px;">';
+		}
+	}
+	$('#whiteimbalance').html(white_imbalance);
+	$('#blackimbalance').html(black_imbalance);
+}
+
 var update_displayed_line = function() {
 	if (highlighted_move !== null) {
 		highlighted_move.removeClass('highlight'); 
@@ -1107,6 +1145,7 @@ var update_displayed_line = function() {
 		$("#linenav").hide();
 		$("#linemsg").show();
 		board.position(fen);
+		update_imbalance(fen);
 		return;
 	}
 
@@ -1129,6 +1168,7 @@ var update_displayed_line = function() {
 
 	var hiddenboard = chess_from(current_display_line.start_fen, current_display_line.pretty_pv, current_display_move);
 	board.position(hiddenboard.fen());
+	update_imbalance(hiddenboard.fen());
 }
 
 /**