From: H.G. Muller <h.g.muller@hccnet.nl>
Date: Sun, 24 Jan 2010 17:51:38 +0000 (+0100)
Subject: Send FICS atomic claim to ICS if move creates draw after offer
X-Git-Tag: master-20100206~25
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=993c315fcddbf1717850eb3a4fa3748f69050c4b;p=xboard.git

Send FICS atomic claim to ICS if move creates draw after offer

The FICS format "draw MOVE" is used to send the move to the ICS  when
the user enters a move that adjudicates as a claimable draw, and he
offered a draw before the move. For the benefit of ICS that do not
understand this format, the plain move is sent afterwards.
---

diff --git a/backend.c b/backend.c
index 3fc68f2..d8c5410 100644
--- a/backend.c
+++ b/backend.c
@@ -5473,8 +5473,6 @@ UserMoveTest(fromX, fromY, toX, toY, promoChar, captureOwn)
 	}
     }
 
-    userOfferedDraw = FALSE; // [HGM] drawclaim: only if we do a legal move!
-	
     return moveType;
     /* [HGM] <popupFix> in stead of calling FinishMove directly, this
        function is made into one that returns an OK move type if FinishMove
@@ -5604,6 +5602,12 @@ FinishMove(moveType, fromX, fromY, toX, toY, promoChar)
   if (appData.icsActive) {
     if (gameMode == IcsPlayingWhite || gameMode == IcsPlayingBlack ||
 	gameMode == IcsExamining) {
+      if(userOfferedDraw && (signed char)boards[forwardMostMove][EP_STATUS] <= EP_DRAWS) {
+        SendToICS(ics_prefix); // [HGM] drawclaim: send caim and move on one line for FICS
+	SendToICS("draw ");
+        SendMoveToICS(moveType, fromX, fromY, toX, toY);
+      }
+      // also send plain move, in case ICS does not understand atomic claims
       SendMoveToICS(moveType, fromX, fromY, toX, toY);
       ics_user_moved = 1;
     }
@@ -5655,6 +5659,8 @@ FinishMove(moveType, fromX, fromY, toX, toY, promoChar)
     break;
   }
 
+  userOfferedDraw = FALSE; // [HGM] drawclaim: after move made, and tested for claimable draw
+	
   if(bookHit) { // [HGM] book: simulate book reply
 	static char bookMove[MSG_SIZ]; // a bit generous?