X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=backend.c;h=c3a68e72b03232424323358a132a81e75e42178d;hb=e30a78284219ac19697175114c16740c7aab850b;hp=b288d6bd5bd9b7c03cb14d2796130117b33f9acf;hpb=5297eb5a91178cf9a403da89709a4661efde0210;p=xboard.git diff --git a/backend.c b/backend.c index b288d6b..c3a68e7 100644 --- a/backend.c +++ b/backend.c @@ -1600,6 +1600,7 @@ InitBackEnd3 P((void)) char buf[MSG_SIZ]; int err, len; + ParseFeatures(appData.features[0], &first); if(!appData.icsActive && !appData.noChessProgram && !appData.matchMode && // mode involves only first engine !strcmp(appData.variant, "normal") && // no explicit variant request appData.NrRanks == -1 && appData.NrFiles == -1 && appData.holdingsSize == -1 && // no size overrides requested @@ -4301,7 +4302,7 @@ read_from_ics (InputSourceRef isr, VOIDSTAR closure, char *data, int count, int } else if (count == 0) { RemoveInputSource(isr); - DisplayFatalError(_("Connection closed by ICS"), 0, 0); + DisplayFatalError(_("Connection closed by ICS"), 0, 6666); } else { DisplayFatalError(_("Error reading from ICS"), error, 1); } @@ -10212,16 +10213,16 @@ ParseGameHistory (char *game) void ApplyMove (int fromX, int fromY, int toX, int toY, int promoChar, Board board) { - ChessSquare captured = board[toY][toX], piece, pawn, king, killed, killed2; int p, rookX, oldEP, epRank, berolina = 0; + ChessSquare captured = board[toY][toX], piece, pawn, king, killed, killed2; int p, rookX, oldEP, epRank, epFile, lastFile, lastRank, berolina = 0; int promoRank = gameInfo.variant == VariantMakruk || gameInfo.variant == VariantGrand || gameInfo.variant == VariantChuChess ? 3 : 1; /* [HGM] compute & store e.p. status and castling rights for new position */ /* we can always do that 'in place', now pointers to these rights are passed to ApplyMove */ if(gameInfo.variant == VariantBerolina) berolina = EP_BEROLIN_A; - oldEP = (signed char)board[EP_FILE]; epRank = board[EP_RANK]; + oldEP = (signed char)board[EP_STATUS]; epRank = board[EP_RANK]; epFile = board[EP_FILE]; lastFile = board[LAST_FILE],lastRank = board[LAST_RANK]; board[EP_STATUS] = EP_NONE; - board[EP_FILE] = board[EP_RANK] = 100; + board[EP_FILE] = board[EP_RANK] = board[LAST_FILE] = board[LAST_RANK] = 100; if (fromY == DROP_RANK) { /* must be first */ @@ -10253,6 +10254,13 @@ ApplyMove (int fromX, int fromY, int toX, int toY, int promoChar, Board board) } pawn = board[fromY][fromX]; + if(pieceDesc[pawn] && strchr(pieceDesc[pawn], 'e')) { // piece with user-defined e.p. capture + if(captured == EmptySquare && toX == epFile && (toY == (epRank & 127) || toY + (pawn < BlackPawn ? -1 : 1) == epRank - 128)) { + captured = board[lastRank][lastFile]; // remove victim + board[lastRank][lastFile] = EmptySquare; + pawn = EmptySquare; // kludge to suppress old e.p. code + } + } if( pawn == WhiteLance || pawn == BlackLance ) { if( gameInfo.variant != VariantSuper && gameInfo.variant != VariantChu ) { if(gameInfo.variant == VariantSpartan) board[EP_STATUS] = EP_PAWN_MOVE; // in Spartan no e.p. rights must be set @@ -10270,6 +10278,7 @@ ApplyMove (int fromX, int fromY, int toX, int toY, int promoChar, Board board) if(toX fromX) board[EP_STATUS] = toX; + board[LAST_FILE] = toX; board[LAST_RANK] = toY; } } else if( pawn == BlackPawn ) { @@ -10283,6 +10292,7 @@ ApplyMove (int fromX, int fromY, int toX, int toY, int promoChar, Board board) if(toX fromX) board[EP_STATUS] = toX; + board[LAST_FILE] = toX; board[LAST_RANK] = toY; } } @@ -10377,18 +10387,16 @@ ApplyMove (int fromX, int fromY, int toX, int toY, int promoChar, Board board) board[toY][toX] = (ChessSquare) (PROMOTED(board[toY][toX])); board[fromY][fromX] = EmptySquare; } else if ((fromY >= BOARD_HEIGHT>>1) - && (oldEP == toX || oldEP == EP_UNKNOWN || appData.testLegality || abs(toX - fromX) > 4) + && (epFile == toX || oldEP == EP_UNKNOWN || appData.testLegality || abs(toX - fromX) > 4) && (toX != fromX) && gameInfo.variant != VariantXiangqi && gameInfo.variant != VariantBerolina && (pawn == WhitePawn) && (board[toY][toX] == EmptySquare)) { + if(lastFile == 100) lastFile = (board[fromY][toX] == BlackPawn ? toX : fromX), lastRank = fromY; // assume FIDE e.p. if victim present board[fromY][fromX] = EmptySquare; board[toY][toX] = piece; - if(toY == epRank - 128 + 1) - captured = board[toY - 2][toX], board[toY - 2][toX] = EmptySquare; - else - captured = board[toY - 1][toX], board[toY - 1][toX] = EmptySquare; + captured = board[lastRank][lastFile], board[lastRank][lastFile] = EmptySquare; } else if ((fromY == BOARD_HEIGHT-4) && (toX == fromX) && gameInfo.variant == VariantBerolina @@ -10444,18 +10452,16 @@ ApplyMove (int fromX, int fromY, int toX, int toY, int promoChar, Board board) board[toY][toX] = (ChessSquare) (PROMOTED(board[toY][toX])); board[fromY][fromX] = EmptySquare; } else if ((fromY < BOARD_HEIGHT>>1) - && (oldEP == toX || oldEP == EP_UNKNOWN || appData.testLegality || abs(toX - fromX) > 4) + && (epFile == toX && epRank == toY || oldEP == EP_UNKNOWN || appData.testLegality || abs(toX - fromX) > 4) && (toX != fromX) && gameInfo.variant != VariantXiangqi && gameInfo.variant != VariantBerolina && (pawn == BlackPawn) && (board[toY][toX] == EmptySquare)) { + if(lastFile == 100) lastFile = (board[fromY][toX] == WhitePawn ? toX : fromX), lastRank = fromY; board[fromY][fromX] = EmptySquare; board[toY][toX] = piece; - if(toY == epRank - 128 - 1) - captured = board[toY + 2][toX], board[toY + 2][toX] = EmptySquare; - else - captured = board[toY + 1][toX], board[toY + 1][toX] = EmptySquare; + captured = board[lastRank][lastFile], board[lastRank][lastFile] = EmptySquare; } else if ((fromY == 3) && (toX == fromX) && gameInfo.variant == VariantBerolina