From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Wed, 18 Feb 2015 21:47:30 +0000 (+0100)
Subject: Fix illegal drops
X-Git-Url: http://winboard.nl/cgi-bin?p=xboard.git;a=commitdiff_plain;h=abc22463364ee2865728feb89bced464a5ce6139

Fix illegal drops

Even white was dropping black pieces on those!
---

diff --git a/backend.c b/backend.c
index 71a795c..d8b85a1 100644
--- a/backend.c
+++ b/backend.c
@@ -5527,7 +5527,12 @@ ParseOneMove (char *move, int moveNum, ChessMove *moveType, int *fromX, int *fro
       case BlackASideCastleFR:
       /* End of code added by Tord */
       case IllegalMove:		/* bug or odd chess variant */
-	if(currentMoveString[1] == '@') goto drop; // illegal drop
+	if(currentMoveString[1] == '@') { // illegal drop
+	  *fromX = *moveType == WhiteOnMove(moveNum) ?
+	    (int) CharToPiece(ToUpper(currentMoveString[0])) :
+	    (int) CharToPiece(ToLower(currentMoveString[0]));
+	  goto drop;
+	}
         *fromX = currentMoveString[0] - AAA;
         *fromY = currentMoveString[1] - ONE;
         *toX = currentMoveString[2] - AAA;
@@ -5551,10 +5556,10 @@ ParseOneMove (char *move, int moveNum, ChessMove *moveType, int *fromX, int *fro
 
       case WhiteDrop:
       case BlackDrop:
-      drop:
 	*fromX = *moveType == WhiteDrop ?
 	  (int) CharToPiece(ToUpper(currentMoveString[0])) :
 	  (int) CharToPiece(ToLower(currentMoveString[0]));
+      drop:
 	*fromY = DROP_RANK;
         *toX = currentMoveString[2] - AAA;
         *toY = currentMoveString[3] - ONE;