X-Git-Url: https://git.auder.net/?a=blobdiff_plain;ds=sidebyside;f=public%2Fjavascripts%2Fbase_rules.js;h=b604e7970ffc357c4b05b0217836756485bde3c6;hb=4b5fe3061829e184f9ad86a13d831eda22d95343;hp=9a4ef9120ca8463a9e4e36d4197aead688c94299;hpb=0cfb593616e766e5f5ed693f52452dc3f6efc8fd;p=vchess.git

diff --git a/public/javascripts/base_rules.js b/public/javascripts/base_rules.js
index 9a4ef912..b604e797 100644
--- a/public/javascripts/base_rules.js
+++ b/public/javascripts/base_rules.js
@@ -629,6 +629,7 @@ class ChessRules
 		return false;
 	}
 
+	// Is color c under check after move ?
 	underCheck(move, c)
 	{
 		this.play(move);
@@ -637,6 +638,17 @@ class ChessRules
 		return res;
 	}
 
+	// On which squares is color c under check (after move) ?
+	getCheckSquares(move, c)
+	{
+		this.play(move);
+		let res = this.isAttacked(this.kingPos[c], this.getOppCol(c))
+			? [ JSON.parse(JSON.stringify(this.kingPos[c])) ] //need to duplicate!
+			: [ ];
+		this.undo(move);
+		return res;
+	}
+
 	// Apply a move on board
 	static PlayOnBoard(board, move)
 	{