Show 50-move counter also when observing ICS games

[xboard.git] / engineoutput.c

diff --git a/engineoutput.c b/engineoutput.c
index 46b34a3..0a45777 100644 (file)
--- a/engineoutput.c
+++ b/engineoutput.c
@@ -76,20 +76,24 @@ static char header[MSG_SIZ];
 #define MAX_VAR 400
 static int scores[MAX_VAR], textEnd[MAX_VAR], curDepth[2], nrVariations[2];
 
+extern int initialRulePlies;
+
 void MakeEngineOutputTitle()
 {
        static char buf[MSG_SIZ];
        static char oldTitle[MSG_SIZ];
        char *title = "Engine Output";
-      extern int initialRulePlies;
-       int count;
+       int count, rule = 2*appData.ruleMoves;
+
+       if(!EngineOutputIsUp()) return;
        // figure out value of 50-move counter
        count = currentMove;
        while( (signed char)boards[count][EP_STATUS] <= EP_NONE && count > backwardMostMove ) count--;
        if( count == backwardMostMove ) count -= initialRulePlies;
-       count += 2*appData.ruleMoves - currentMove;
-       snprintf(buf, MSG_SIZ, "%s (%d ply to draw)", title, count);
-       if(count <= 40) title = buf;
+       count = currentMove - count;
+       snprintf(buf, MSG_SIZ, "%s (%d reversible plies)", title, count);
+       if(!rule) rule = 100;
+       if(count >= rule - 40 && (!appData.icsActive || gameMode == IcsObserving)) title = buf;
        if(!strcmp(oldTitle, title)) return;
        safeStrCpy(oldTitle, title, MSG_SIZ);
        SetEngineOutputTitle(title);