better init for random number generator

[xboard.git] / backend.c

diff --git a/backend.c b/backend.c
index a23d95e..860a160 100755 (executable)
--- a/backend.c
+++ b/backend.c
@@ -607,7 +607,7 @@ InitBackEnd1()
     ShowThinkingEvent(); // [HGM] thinking: make sure post/nopost state is set according to options
 
     GetTimeMark(&programStartTime);
-    srandom(programStartTime.ms); // [HGM] book: makes sure random is unpredictabe to msec level
+    srandom((programStartTime.ms + 1000*programStartTime.sec)*0x1001001); // [HGM] book: makes sure random is unpredictabe to msec level
 
     ClearProgramStats();
     programStats.ok_to_send = 1;
@@ -1977,7 +1977,7 @@ VariantSwitch(Board board, VariantClass newVariant)
      case VariantSuper:
        newHoldingsWidth = 2;
        gameInfo.holdingsSize = 8;
-       return;
+       break;
      case VariantGothic:
      case VariantCapablanca:
      case VariantCapaRandom:
@@ -2011,10 +2011,8 @@ VariantSwitch(Board board, VariantClass newVariant)
      gameInfo.holdingsWidth = newHoldingsWidth;
      gameInfo.variant = newVariant;
      InitDrawingSizes(-2, 0);
-     InitPosition(FALSE);          /* this sets up board[0], but also other stuff        */
-   } else { gameInfo.variant = newVariant; InitPosition(FALSE); }
-   
-   DrawPosition(TRUE, boards[currentMove]);
+     InitPosition(TRUE);          /* this sets up board[0], but also other stuff        */
+   } else { gameInfo.variant = newVariant; InitPosition(TRUE); }
 }
 
 static int loggedOn = FALSE;
@@ -2731,7 +2729,7 @@ read_from_ics(isr, closure, data, count, error)
                           moves and soak them up so user can step
                           through them and/or save them.
                           */
-                       Reset(FALSE, TRUE);
+                       Reset(TRUE, TRUE);
                        gameMode = IcsObserving;
                        ModeHighlight();
                        ics_gamenum = -1;
@@ -3303,8 +3301,8 @@ read_from_ics(isr, closure, data, count, error)
                         white_holding[strlen(white_holding)-1] = NULLCHAR;
                         black_holding[strlen(black_holding)-1] = NULLCHAR;
                         /* [HGM] copy holdings to board holdings area */
-                        CopyHoldings(boards[currentMove], white_holding, WhitePawn);
-                        CopyHoldings(boards[currentMove], black_holding, BlackPawn);
+                        CopyHoldings(boards[forwardMostMove], white_holding, WhitePawn);
+                        CopyHoldings(boards[forwardMostMove], black_holding, BlackPawn);
 #if ZIPPY
                        if (appData.zippyPlay && first.initDone) {
                            ZippyHoldings(white_holding, black_holding,
@@ -3532,7 +3530,7 @@ ParseBoard12(string)
        
        /* Forget the old game and get the history (if any) of the new one */
        if (gameMode != BeginningOfGame) {
-         Reset(FALSE, TRUE);
+         Reset(TRUE, TRUE);
        }
        newGame = TRUE;
        if (appData.autoRaiseBoard) BoardToTop();
@@ -6424,7 +6422,7 @@ if(appData.debugMode) fprintf(debugFP, "nodes = %d, %lld\n", (int) programStats.
             DisplayError(_("Bad FEN received from engine"), 0);
             return ;
         } else {
-           Reset(FALSE, FALSE);
+           Reset(TRUE, FALSE);
            CopyBoard(boards[0], initial_position);
            initialRulePlies = FENrulePlies;
            epStatus[0] = FENepStatus;
@@ -7967,7 +7965,7 @@ TwoMachinesEventIfReady P((void))
 void
 NextMatchGame P((void))
 {
-    int index; /* [HGM] autoinc: step lod index during match */
+    int index; /* [HGM] autoinc: step load index during match */
     Reset(FALSE, TRUE);
     if (*appData.loadGameFile != NULLCHAR) {
        index = appData.loadGameIndex;