X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=public%2Fjavascripts%2Fvariants%2FGrand.js;h=7f5fe422fb32c862a3aa70f27c86060d3cf1f42a;hb=6e62b1c7d177585003e923d423025dff280a7525;hp=4271a6936d5415d386e6ecf105c776275a085f1c;hpb=dc0d28e509798eede4f2ca969358400542cdfc7f;p=vchess.git

diff --git a/public/javascripts/variants/Grand.js b/public/javascripts/variants/Grand.js
index 4271a693..7f5fe422 100644
--- a/public/javascripts/variants/Grand.js
+++ b/public/javascripts/variants/Grand.js
@@ -18,6 +18,23 @@ class GrandRules extends ChessRules
 		return true;
 	}
 
+	static IsGoodEnpassant(enpassant)
+	{
+		if (enpassant != "-")
+		{
+			const squares = enpassant.split(",");
+			if (squares.length > 2)
+				return false;
+			for (let sq of squares)
+			{
+				const ep = V.SquareToCoords(sq);
+				if (isNaN(ep.x) || !V.OnBoard(ep))
+					return false;
+			}
+		}
+		return true;
+	}
+
 	static ParseFen(fen)
 	{
 		const fenParts = fen.split(" ");
@@ -218,13 +235,12 @@ class GrandRules extends ChessRules
 				// TODO: some redundant checks
 				if (epsq.x == x+shift && Math.abs(epsq.y - y) == 1)
 				{
-					let epStep = epsq.y - y;
-					var enpassantMove = this.getBasicMove([x,y], [x+shift,y+epStep]);
+					var enpassantMove = this.getBasicMove([x,y], [x+shift,epsq.y]);
 					enpassantMove.vanish.push({
 						x: x,
-						y: y+epStep,
+						y: epsq.y,
 						p: 'p',
-						c: this.getColor(x,y+epStep)
+						c: this.getColor(x,epsq.y)
 					});
 					moves.push(enpassantMove);
 				}