removed install files from master

[xboard.git] / backend.c

diff --git a/backend.c b/backend.c
index 674b14a..b0d9351 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -242,6 +242,7 @@ int whiteNPS, blackNPS; /* [HGM] nps: for easily making clocks aware of NPS
 VariantClass currentlyInitializedVariant; /* [HGM] variantswitch */
 int lastIndex = 0;      /* [HGM] autoinc: last game/position used in match mode */
 int opponentKibitzes;
+int lastSavedGame; /* [HGM] save: ID of game */
 
 /* States for ics_getting_history */
 #define H_FALSE 0
@@ -2109,9 +2110,10 @@ read_from_ics(isr, closure, data, count, error)
            if (data[i] != NULLCHAR && data[i] != '\r')
              buf[buf_len++] = data[i];
            if(buf_len >= 5 && buf[buf_len-5]=='\n' && buf[buf_len-4]=='\\' && 
-                               buf[buf_len-3]==' '  && buf[buf_len-2]==' '  && buf[buf_len-1]==' ') 
+                               buf[buf_len-3]==' '  && buf[buf_len-2]==' '  && buf[buf_len-1]==' ') {
                buf_len -= 5; // [HGM] ICS: join continuation line of Lasker 2.2.3 server with previous
                buf[buf_len++] = ' '; // replace by space (assumes ICS does not break lines within word)
+           }
        }
 
        buf[buf_len] = NULLCHAR;
@@ -7718,6 +7720,28 @@ void UserAdjudicationEvent( int result )
 }
 
 
+// [HGM] save: calculate checksum of game to make games easily identifiable
+int StringCheckSum(char *s)
+{
+       int i = 0;
+       if(s==NULL) return 0;
+       while(*s) i = i*259 + *s++;
+       return i;
+}
+
+int GameCheckSum()
+{
+       int i, sum=0;
+       for(i=backwardMostMove; i<forwardMostMove; i++) {
+               sum += pvInfoList[i].depth;
+               sum += StringCheckSum(parseList[i]);
+               sum += StringCheckSum(commentList[i]);
+               sum *= 261;
+       }
+       if(i>1 && sum==0) sum++; // make sure never zero for non-empty game
+       return sum + StringCheckSum(commentList[i]);
+} // end of save patch
+
 void
 GameEnds(result, resultDetails, whosays)
      ChessMove result;
@@ -7867,7 +7891,9 @@ GameEnds(result, resultDetails, whosays)
                DisplayMove(currentMove - 1);
     
            if (forwardMostMove != 0) {
-               if (gameMode != PlayFromGameFile && gameMode != EditGame) {
+               if (gameMode != PlayFromGameFile && gameMode != EditGame
+                   && lastSavedGame != GameCheckSum() // [HGM] save: suppress duplicates
+                                                               ) {
                    if (*appData.saveGameFile != NULLCHAR) {
                        SaveGameToFile(appData.saveGameFile, TRUE);
                    } else if (appData.autoSaveGames) {
@@ -8211,6 +8237,7 @@ Reset(redraw, init)
     DisplayTitle("");
     DisplayMessage("", "");
     HistorySet(parseList, backwardMostMove, forwardMostMove, currentMove-1);
+    lastSavedGame = 0; // [HGM] save: make sure next game counts as unsaved
 }
 
 void
@@ -9701,6 +9728,7 @@ SaveGamePGN(f)
     }
 
     fclose(f);
+    lastSavedGame = GameCheckSum(); // [HGM] save: remember ID of last saved game to prevent double saving
     return TRUE;
 }
 
@@ -9777,6 +9805,7 @@ SaveGame(f, dummy, dummy2)
      char *dummy2;
 {
     if (gameMode == EditPosition) EditPositionDone();
+    lastSavedGame = GameCheckSum(); // [HGM] save: remember ID of last saved game to prevent double saving
     if (appData.oldSaveStyle)
       return SaveGameOldStyle(f);
     else
@@ -12520,7 +12549,11 @@ ParseFeatures(args, cps)
     if (BoolFeature(&p, "smp", &cps->maxCores, cps)) continue;
     if (StringFeature(&p, "egt", &cps->egtFormats, cps)) continue;
     if (StringFeature(&p, "option", &(cps->option[cps->nrOptions].name), cps)) {
-       ParseOption(&(cps->option[cps->nrOptions++]), cps); // [HGM] options: add option feature
+       if(!ParseOption(&(cps->option[cps->nrOptions++]), cps)) { // [HGM] options: add option feature
+           sprintf(buf, "rejected option %s\n", cps->option[--cps->nrOptions].name);
+           SendToProgram(buf, cps);
+           continue;
+       }
        if(cps->nrOptions >= MAX_OPTIONS) {
            cps->nrOptions--;
            sprintf(buf, "%s engine has too many options\n", cps->which);