From: H.G. Muller <h.g.muller@hccnet.nl>
Date: Sun, 7 Feb 2010 20:26:39 +0000 (+0100)
Subject: Observe a game in the background while playing
X-Git-Tag: master-20100221~33
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=3018a62f2d049e7295b703ce7780a9bd2c547ada;p=xboard.git

Observe a game in the background while playing

A new (persistent) option -backgroundObserve true|false is added. When
set, observed boards received while playing a game will not trigger a
game switch, but will be ignored except for storing in a dedicated board
buffer. Pressing the right mouse button will cause the board to be
displayed, until we release it. Time, strength and stm are always
displayed in the message window.
---

diff --git a/args.h b/args.h
index 079e3c9..615b3ff 100644
--- a/args.h
+++ b/args.h
@@ -559,6 +559,7 @@ ArgDescriptor argDescriptors[] = {
   { "trivialDraws", ArgBoolean, (void *) &appData.trivialDraws, TRUE, (ArgIniType) FALSE },
   { "ruleMoves", ArgInt, (void *) &appData.ruleMoves, TRUE, (ArgIniType) 51 },
   { "repeatsToDraw", ArgInt, (void *) &appData.drawRepeats, TRUE, (ArgIniType) 6 },
+  { "backgroundObserve", ArgBoolean, (void *) &appData.bgObserve, TRUE, (ArgIniType) FALSE },
   { "autoKibitz", ArgTrue, (void *) &appData.autoKibitz, FALSE, INVALID },
   { "engineDebugOutput", ArgInt, (void *) &appData.engineComments, FALSE, (ArgIniType) 1 },
   { "userName", ArgString, (void *) &appData.userName, FALSE, INVALID },
diff --git a/backend.c b/backend.c
index 8f77f6b..4ac6084 100644
--- a/backend.c
+++ b/backend.c
@@ -242,6 +242,8 @@ int endPV = -1;
 static int exiting = 0; /* [HGM] moved to top */
 static int setboardSpoiledMachineBlack = 0 /*, errorExitFlag = 0*/;
 int startedFromPositionFile = FALSE; Board filePosition;       /* [HGM] loadPos */
+Board partnerBoard;     /* [HGM] bughouse: for peeking at partner game          */
+Boolean partnerUp;
 char endingGame = 0;    /* [HGM] crash: flag to prevent recursion of GameEnds() */
 int whiteNPS, blackNPS; /* [HGM] nps: for easily making clocks aware of NPS     */
 VariantClass currentlyInitializedVariant; /* [HGM] variantswitch */
@@ -3766,6 +3768,26 @@ ParseBoard12(string)
 	break;
     }
     
+    if((gameMode == IcsPlayingWhite || gameMode == IcsPlayingBlack)
+	 && newGameMode == IcsObserving && appData.bgObserve) {
+      // [HGM] bughouse: don't act on alien boards while we play. Just parse the board and save it */
+      char buf[MSG_SIZ];
+      for (k = 0; k < ranks; k++) {
+        for (j = 0; j < files; j++)
+          board[k][j+gameInfo.holdingsWidth] = CharToPiece(board_chars[(ranks-1-k)*(files+1) + j]);
+        if(gameInfo.holdingsWidth > 1) {
+             board[k][0] = board[k][BOARD_WIDTH-1] = EmptySquare;
+             board[k][1] = board[k][BOARD_WIDTH-2] = (ChessSquare) 0;;
+        }
+      }
+      CopyBoard(partnerBoard, board);
+      if(partnerUp) DrawPosition(FALSE, partnerBoard);
+      sprintf(buf, "W: %d:%d B: %d:%d (%d-%d) %c", white_time/60000, (white_time%60000)/1000,
+		 (black_time/60000), (black_time%60000)/1000, white_stren, black_stren, to_play);
+      DisplayMessage(buf, "");
+      return;
+    }
+
     /* Modify behavior for initial board display on move listing
        of wild games.
        */
@@ -6274,6 +6296,13 @@ int RightClick(ClickType action, int x, int y, int *fromX, int *fromY)
 	return -2;
     }
 
+    if((gameMode == IcsPlayingWhite || gameMode == IcsPlayingBlack)
+	 && !appData.zippyPlay && appData.bgObserve) { // [HGM] bughouse: show background game
+	if(action == Press)   { flipView = !flipView; DrawPosition(TRUE, partnerBoard); partnerUp = TRUE; } else
+	if(action == Release) { flipView = !flipView; DrawPosition(TRUE, boards[currentMove]); partnerUp = FALSE; }
+	return -2;
+    }
+
     xSqr = EventToSquare(x, BOARD_WIDTH);
     ySqr = EventToSquare(y, BOARD_HEIGHT);
     if (action == Release) UnLoadPV(); // [HGM] pv
diff --git a/common.h b/common.h
index 4ef81fa..745ceac 100644
--- a/common.h
+++ b/common.h
@@ -555,6 +555,7 @@ typedef struct {
     Boolean highlightMoveWithArrow;
     int highlightArrowColor;
     Boolean useStickyWindows;
+    Boolean bgObserve;   /* [HGM] bughouse */
     int adjudicateDrawMoves;
     Boolean autoDisplayComment;
     Boolean autoDisplayTags;