Reactivate Falcon Chess

[xboard.git] / backend.c

diff --git a/backend.c b/backend.c
index cb36909..db03aad 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -618,10 +618,10 @@ ChessSquare GothicArray[2][BOARD_FILES] = {
 
 #ifdef FALCON
 ChessSquare FalconArray[2][BOARD_FILES] = {
-    { WhiteRook, WhiteKnight, WhiteBishop, WhiteLance, WhiteQueen,
-        WhiteKing, WhiteLance, WhiteBishop, WhiteKnight, WhiteRook },
-    { BlackRook, BlackKnight, BlackBishop, BlackLance, BlackQueen,
-        BlackKing, BlackLance, BlackBishop, BlackKnight, BlackRook }
+    { WhiteRook, WhiteKnight, WhiteBishop, WhiteFalcon, WhiteQueen,
+        WhiteKing, WhiteFalcon, WhiteBishop, WhiteKnight, WhiteRook },
+    { BlackRook, BlackKnight, BlackBishop, BlackFalcon, BlackQueen,
+        BlackKing, BlackFalcon, BlackBishop, BlackKnight, BlackRook }
 };
 #else // !FALCON
 #define FalconArray CapablancaArray
@@ -888,7 +888,7 @@ Load(ChessProgramState *cps, int i)
     if(engineLine && engineLine[0]) { // an engine was selected from the combo box
        snprintf(buf, MSG_SIZ, "-fcp %s", engineLine);
        SwapEngines(i); // kludge to parse -f* / -first* like it is -s* / -second*
-       ParseArgsFromString(resetOptions); appData.fenOverride[0] = NULL;
+       ParseArgsFromString(resetOptions); appData.fenOverride[0] = NULL; appData.pvSAN[0] = FALSE;
        ParseArgsFromString(buf);
        SwapEngines(i);
        ReplaceEngine(cps, i);
@@ -1662,6 +1662,18 @@ InitBackEnd3 P((void))
     }
 }
 
+void
+HistorySet( char movelist[][2*MOVE_LEN], int first, int last, int current )
+{
+    DisplayBook(current+1);
+
+    MoveHistorySet( movelist, first, last, current, pvInfoList );
+
+    EvalGraphSet( first, last, current, pvInfoList );
+
+    MakeEngineOutputTitle();
+}
+
 /*
  * Establish will establish a contact to a remote host.port.
  * Sets icsPR to a ProcRef for a process (or pseudo-process)
@@ -9410,9 +9422,8 @@ MakeMove(fromX, fromY, toX, toY, promoChar)
         fflush(serverMoves);
     }
 
-    if (forwardMostMove+1 > framePtr) { // [HGM] vari: do not run into saved variations
-      DisplayFatalError(_("Game too long; increase MAX_MOVES and recompile"),
-                       0, 1);
+    if (forwardMostMove+1 > framePtr) { // [HGM] vari: do not run into saved variations..
+       GameEnds(GameUnfinished, _("Game too long; increase MAX_MOVES and recompile"), GE_XBOARD);
       return;
     }
     UnLoadPV(); // [HGM] pv: if we are looking at a PV, abort this
@@ -9479,7 +9490,6 @@ ShowMove(fromX, fromY, toX, toY)
     DrawPosition(FALSE, boards[currentMove]);
     DisplayBothClocks();
     HistorySet(parseList,backwardMostMove,forwardMostMove,currentMove-1);
-    DisplayBook(currentMove);
 }
 
 void SendEgtPath(ChessProgramState *cps)
@@ -9922,7 +9932,7 @@ SetPlayer(int player)
     for(i=1; command[i]; i++) if(!strcmp(mnemonic[i], engineName)) break;
     if(mnemonic[i]) {
        snprintf(buf, MSG_SIZ, "-fcp %s", command[i]);
-       ParseArgsFromString(resetOptions); appData.fenOverride[0] = NULL;
+       ParseArgsFromString(resetOptions); appData.fenOverride[0] = NULL; appData.pvSAN[0] = FALSE;
        ParseArgsFromString(buf);
     }
     free(engineName);
@@ -10043,7 +10053,7 @@ NextTourneyGame(int nr, int *swapColors)
 void
 NextMatchGame()
 {   // performs game initialization that does not invoke engines, and then tries to start the game
-    int firstWhite, swapColors = 0;
+    int res, firstWhite, swapColors = 0;
     if(!NextTourneyGame(nextGame, &swapColors)) return; // this sets matchGame, -fcp / -scp and other options for next game, if needed
     firstWhite = appData.firstPlaysBlack ^ (matchGame & 1 | appData.sameColorGames > 1); // non-incremental default
     firstWhite ^= swapColors; // reverses if NextTourneyGame says we are in an odd round
@@ -10052,8 +10062,9 @@ NextMatchGame()
     appData.noChessProgram = (first.pr == NoProc); // kludge to prevent Reset from starting up chess program
     if(appData.loadGameIndex == -2) srandom(appData.seedBase + 68163*(nextGame & ~1)); // deterministic seed to force same opening
     Reset(FALSE, first.pr != NoProc);
-    appData.noChessProgram = FALSE;
-    if(!LoadGameOrPosition(matchGame)) return; // setup game; abort when bad game/pos file
+    res = LoadGameOrPosition(matchGame); // setup game
+    appData.noChessProgram = FALSE; // LoadGameOrPosition might call Reset too!
+    if(!res) return; // abort when bad game/pos file
     TwoMachinesEvent();
 }
 
@@ -11794,7 +11805,7 @@ LoadPosition(f, positionNumber, title)
     lastLoadPositionFP = f;
     lastLoadPositionNumber = positionNumber;
     safeStrCpy(lastLoadPositionTitle, title, sizeof(lastLoadPositionTitle)/sizeof(lastLoadPositionTitle[0]));
-    if (first.pr == NoProc) {
+    if (first.pr == NoProc && !appData.noChessProgram) {
       StartChessProgram(&first);
       InitChessProgram(&first, FALSE);
     }
@@ -11866,7 +11877,6 @@ LoadPosition(f, positionNumber, title)
     }
     startedFromSetupPosition = TRUE;
 
-    SendToProgram("force\n", &first);
     CopyBoard(boards[0], initial_position);
     if (blackPlaysFirst) {
        currentMove = forwardMostMove = backwardMostMove = 1;
@@ -11879,7 +11889,10 @@ LoadPosition(f, positionNumber, title)
        DisplayMessage("", _("White to play"));
     }
     initialRulePlies = FENrulePlies; /* [HGM] copy FEN attributes as well */
-    SendBoard(&first, forwardMostMove);
+    if(first.pr != NoProc) { // [HGM] in tourney-mode a position can be loaded before the chess engine is installed
+       SendToProgram("force\n", &first);
+       SendBoard(&first, forwardMostMove);
+    }
     if (appData.debugMode) {
 int i, j;
   for(i=0;i<2;i++){for(j=0;j<6;j++)fprintf(debugFP, " %d", boards[i][CASTLING][j]);fprintf(debugFP,"\n");}
@@ -11945,12 +11958,18 @@ SaveGameToFile(filename, append)
 {
     FILE *f;
     char buf[MSG_SIZ];
-    int result;
+    int result, i, t,tot=0;
 
     if (strcmp(filename, "-") == 0) {
        return SaveGame(stdout, 0, NULL);
     } else {
-       f = fopen(filename, append ? "a" : "w");
+       for(i=0; i<10; i++) { // upto 10 tries
+            f = fopen(filename, append ? "a" : "w");
+            if(f && i) fprintf(f, "[Delay \"%d retries, %d msec\"]\n",i,tot);
+            if(f || errno != 13) break;
+            DoSleep(t = 5 + random()%11); // wait 5-15 msec
+            tot += t;
+       }
        if (f == NULL) {
            snprintf(buf, sizeof(buf), _("Can't open \"%s\""), filename);
            DisplayError(buf, errno);
@@ -14038,7 +14057,6 @@ ForwardInner(target)
     if ( !matchMode && gameMode != Training) { // [HGM] PV info: routine tests if empty
        DisplayComment(currentMove - 1, commentList[currentMove]);
     }
-    DisplayBook(currentMove);
 }
 
 
@@ -14151,7 +14169,6 @@ BackwardInner(target)
     HistorySet(parseList,backwardMostMove,forwardMostMove,currentMove-1);
     // [HGM] PV info: routine tests if comment empty
     DisplayComment(currentMove - 1, commentList[currentMove]);
-    DisplayBook(currentMove);
 }
 
 void