X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=moves.c;h=e560d34cd220328a637ce78dc6c027d4868ebad7;hb=ba12e63149a003b88b8525d6eb50d48539c660b6;hp=b276ded466025f3a7310d417303e99a3c1c578ae;hpb=dd94bfa89dd6dd1238c3f7063e532ab3ed2d0858;p=xboard.git diff --git a/moves.c b/moves.c index b276ded..e560d34 100644 --- a/moves.c +++ b/moves.c @@ -114,19 +114,32 @@ SameColor (ChessSquare piece1, ChessSquare piece2) #define SameColor(piece1, piece2) (piece1 < EmptySquare && piece2 < EmptySquare && (piece1 < BlackPawn) == (piece2 < BlackPawn) || piece1 == DarkSquare || piece2 == DarkSquare) #endif -char pieceToChar[] = { +unsigned char pieceToChar[EmptySquare+1] = { 'P', 'N', 'B', 'R', 'Q', 'F', 'E', 'A', 'C', 'W', 'M', 'O', 'H', 'I', 'J', 'G', 'D', 'V', 'L', 'S', 'U', 'K', 'p', 'n', 'b', 'r', 'q', 'f', 'e', 'a', 'c', 'w', 'm', 'o', 'h', 'i', 'j', 'g', 'd', 'v', 'l', 's', 'u', 'k', 'x' }; -char pieceNickName[EmptySquare]; +unsigned char pieceNickName[EmptySquare]; char PieceToChar (ChessSquare p) { + int c; if((int)p < 0 || (int)p >= (int)EmptySquare) return('x'); /* [HGM] for safety */ - return pieceToChar[(int) p]; + c = pieceToChar[(int) p]; + if(c & 128) c = c & 63 | 64; + return c; +} + +char +PieceSuffix (ChessSquare p) +{ + int c; + if((int)p < 0 || (int)p >= (int)EmptySquare) return 0; /* [HGM] for safety */ + c = pieceToChar[(int) p]; + if(c < 128) return 0; + return SUFFIXES[c - 128 >> 6]; } int @@ -265,8 +278,9 @@ void MovesFromString (Board board, int flags, int f, int r, int tx, int ty, int angle, char *desc, MoveCallback cb, VOIDSTAR cl) { char buf[80], *p = desc, *atom = NULL; - int mine, his, dir, bit, occup, i, promoRank = -1; + int mine, his, dir, bit, occup, i, ep, promoRank = -1; ChessMove promo= NormalMove; ChessSquare pc = board[r][f]; + if(pc == DarkSquare) return; // this is not a piece, but a 'hole' in the board if(flags & F_WHITE_ON_MOVE) his = 2, mine = 1; else his = 1, mine = 2; if(pc == WhitePawn || pc == WhiteLance) promo = WhitePromotion, promoRank = BOARD_HEIGHT-1; else if(pc == BlackPawn || pc == BlackLance) promo = BlackPromotion, promoRank = 0; @@ -384,7 +398,7 @@ MovesFromString (Board board, int flags, int f, int r, int tx, int ty, int angle for(dir=0, bit=1; dir<8; dir++, bit += bit) { // loop over directions int i = expo, j = skip, hop = mode, vx, vy, loop = 0; if(!(bit & dirSet)) continue; // does not move in this direction - if(dy != 1) j = 0; // + if(dy != 1 || mode & 1024) j = 0; // vx = dx*rot[dir][0] + dy*rot[dir][1]; // rotate step vector vy = dx*rot[dir][2] + dy*rot[dir][3]; if(tx < 0) x = f, y = r; // start square @@ -394,6 +408,7 @@ MovesFromString (Board board, int flags, int f, int r, int tx, int ty, int angle if(y < 0 || y >= BOARD_HEIGHT) break; // vertically off-board: always done if(x < BOARD_LEFT) { if(mode & 128) x += BOARD_RGHT - BOARD_LEFT, loop++; else break; } if(x >= BOARD_RGHT) { if(mode & 128) x -= BOARD_RGHT - BOARD_LEFT, loop++; else break; } + if(board[y][x] == DarkSquare) break; // black squares are supposed to be off board if(j) { j--; continue; } // skip irrespective of occupation if(!jump && board[y - vy + vy/2][x - vx + vx/2] != EmptySquare) break; // blocked if(jump > 1 && board[y - vy + vy/2][x - vx + vx/2] == EmptySquare) break; // no hop @@ -424,16 +439,29 @@ MovesFromString (Board board, int flags, int f, int r, int tx, int ty, int angle continue; } if(hop & 32+64) { if(occup != 4) { if(hop & 64 && i != 1) i = 2; hop &= 31; } continue; } // hopper - if(mode & 8 && y == board[EP_RANK] && occup == 4 && board[EP_FILE] == x) { // to e.p. square + ep = board[EP_RANK]; + if(mode & 8 && occup == 4 && board[EP_FILE] == x && (y == (ep & 127) || y - vy == ep - 128)) { // to e.p. square (or 2nd e.p. square) cb(board, flags, mine == 1 ? WhiteCapturesEnPassant : BlackCapturesEnPassant, r, f, y, x, cl); } if(mode & 1024) { // castling i = 2; // kludge to elongate move indefinitely if(occup == 4) continue; // skip empty squares - if(x == BOARD_LEFT && board[y][x] == initialPosition[y][x]) // reached initial corner piece + if((x == BOARD_LEFT + skip || x > BOARD_LEFT + skip && vx < 0 && board[y][x-1-skip] == DarkSquare) + && board[y][x] == initialPosition[y][x]) { // reached initial corner piece + if(pc != WhiteKing && pc != BlackKing) { // non-royal castling (to be entered as two-leg move via 'Rook') + if(killX < 0) cb(board, flags, FirstLeg, r, f, y, x, cl); if(killX < f) + legNr <<= 1, cb(board, flags, NormalMove, r, f, y, f - expo, cl), legNr >>= 1; + } else cb(board, flags, mine == 1 ? WhiteQueenSideCastle : BlackQueenSideCastle, r, f, y, f - expo, cl); - if(x == BOARD_RGHT-1 && board[y][x] == initialPosition[y][x]) + } + if((x == BOARD_RGHT-1-skip || x < BOARD_RGHT-1-skip && vx > 0 && board[y][x+1+skip] == DarkSquare) + && board[y][x] == initialPosition[y][x]) { + if(pc != WhiteKing && pc != BlackKing) { + if(killX < 0) cb(board, flags, FirstLeg, r, f, y, x, cl); if(killX > f) + legNr <<= 1, cb(board, flags, NormalMove, r, f, y, f + expo, cl), legNr >>= 1; + } else cb(board, flags, mine == 1 ? WhiteKingSideCastle : BlackKingSideCastle, r, f, y, f + expo, cl); + } break; } if(mode & 16 && (board[y][x] == WhiteKing || board[y][x] == BlackKing)) break; // tame piece, cannot capture royal @@ -1801,13 +1829,17 @@ LegalityTest (Board board, int flags, int rf, int ff, int rt, int ft, int promoC if(cl.kind != NormalMove || promoChar == NULLCHAR || promoChar == '=') return cl.kind; if(promoChar != '+') return CharToPiece(promoChar) == EmptySquare ? ImpossibleMove : IllegalMove; - if(PieceToChar(CHUPROMOTED board[rf][ff]) != '+') return ImpossibleMove; + if(PieceToChar(CHUPROMOTED board[rf][ff]) != '+') { + if(PieceToChar(CHUPROMOTED (board[rf][ff] < BlackPawn ? WhitePawn : BlackPawn)) != '.') + return ImpossibleMove; + } return flags & F_WHITE_ON_MOVE ? WhitePromotion : BlackPromotion; } else if(gameInfo.variant == VariantShogi) { /* [HGM] Shogi promotions. '=' means defer */ if(rf != DROP_RANK && cl.kind == NormalMove) { ChessSquare piece = board[rf][ff]; + int zone = BOARD_HEIGHT/3 + (BOARD_HEIGHT == 8); if(promoChar == PieceToChar(BlackQueen)) promoChar = NULLCHAR; /* [HGM] Kludge */ if(promoChar == 'd' && (piece == WhiteRook || piece == BlackRook) || @@ -1819,7 +1851,7 @@ if(appData.debugMode)fprintf(debugFP,"SHOGI promoChar = %c\n", promoChar ? promo return CharToPiece(promoChar) == EmptySquare ? ImpossibleMove : IllegalMove; else if(flags & F_WHITE_ON_MOVE) { if( (int) piece < (int) WhiteWazir && - (rf >= BOARD_HEIGHT - BOARD_HEIGHT/3 || rt >= BOARD_HEIGHT - BOARD_HEIGHT/3) ) { + (rf >= BOARD_HEIGHT - zone || rt >= BOARD_HEIGHT - zone) ) { if( (piece == WhitePawn || piece == WhiteQueen) && rt > BOARD_HEIGHT-2 || piece == WhiteKnight && rt > BOARD_HEIGHT-3) /* promotion mandatory */ cl.kind = promoChar == '=' ? IllegalMove : WhitePromotion; @@ -1827,7 +1859,7 @@ if(appData.debugMode)fprintf(debugFP,"SHOGI promoChar = %c\n", promoChar ? promo cl.kind = promoChar == '+' ? WhitePromotion : WhiteNonPromotion; } else cl.kind = promoChar == '+' ? IllegalMove : NormalMove; } else { - if( (int) piece < (int) BlackWazir && (rf < BOARD_HEIGHT/3 || rt < BOARD_HEIGHT/3) ) { + if( (int) piece < (int) BlackWazir && (rf < zone || rt < zone) ) { if( (piece == BlackPawn || piece == BlackQueen) && rt < 1 || piece == BlackKnight && rt < 2 ) /* promotion obligatory */ cl.kind = promoChar == '=' ? IllegalMove : BlackPromotion; @@ -1957,6 +1989,7 @@ DisambiguateCallback (Board board, int flags, ChessMove kind, int rf, int ff, in { register DisambiguateClosure *cl = (DisambiguateClosure *) closure; int wildCard = FALSE; ChessSquare piece = board[rf][ff]; + extern int kifu; // in parser.c // [HGM] wild: for wild-card pieces rt and rf are dummies if(piece == WhiteFalcon || piece == BlackFalcon || @@ -1974,6 +2007,18 @@ DisambiguateCallback (Board board, int flags, ChessMove kind, int rf, int ff, in if(cl->count && rf == cl->rf && ff == cl->ff) return; // duplicate move + if(cl->count == 1 && kifu & 0x7E && cl->rfIn == -1 && cl->ffIn == -1) { // traditional Shogi disambiguation required + int this = 1, other = 1; + if(kifu & 2) this &= (flags & 1 ? rt > rf : rt < rf), other &= (flags & 1 ? cl->rt > cl->rf : cl->rt < cl->rf); + if(kifu & 4) this &= (flags & 1 ? rt < rf : rt > rf), other &= (flags & 1 ? cl->rt < cl->rf : cl->rt > cl->rf); + if(kifu & 8) this &= (rf == rt), other &= (cl->rt == cl->rf); + if(kifu & 0x10) this &= (flags & 1 ? ft <= ff : ft >= ff), other &= (flags & 1 ? cl->ft <= cl->ff : cl->ft >= cl->ff); + if(kifu & 0x20) this &= (flags & 1 ? ft >= ff : ft <= ff), other &= (flags & 1 ? cl->ft >= cl->ff : cl->ft <= cl->ff); + if(kifu & 0x40) this &= (ft == ff), other &= (cl->ft == cl->ff); // should never be used + if(!other) cl->count--; // the old move did not satisfy the requested relative position, erase it + if(!this) return; // the current move does not satisfy the requested relative position, ignore it + } + cl->count++; if(cl->count == 1 || board[rt][ft] != EmptySquare) { // [HGM] oneclick: if multiple moves, be sure we remember capture @@ -2015,7 +2060,7 @@ Disambiguate (Board board, int flags, DisambiguateClosure *closure) GenLegal(board, flags|F_IGNORE_CHECK, DisambiguateCallback, (VOIDSTAR) closure, closure->pieceIn); if (closure->count == 0) { /* No, it's not even that */ - if(!appData.testLegality && closure->pieceIn != EmptySquare) { + if(!appData.testLegality && !pieceDefs && closure->pieceIn != EmptySquare) { int f, r; // if there is only a single piece of the requested type on the board, use that closure->rt = closure->rtIn, closure->ft = closure->ftIn; for(r=0; rrfIn != DROP_RANK && closure->kind == NormalMove) { ChessSquare piece = closure->piece; + int zone = BOARD_HEIGHT/3 + (BOARD_HEIGHT == 8); if (c == 'd' && (piece == WhiteRook || piece == BlackRook) || c == 'h' && (piece == WhiteBishop || piece == BlackBishop) || c == 'g' && (piece <= WhiteFerz || piece <= BlackFerz && piece >= BlackPawn) ) @@ -2071,7 +2117,7 @@ Disambiguate (Board board, int flags, DisambiguateClosure *closure) if(c != NULLCHAR && c != '+' && c != '=') closure->kind = IllegalMove; // otherwise specifying a piece is illegal else if(flags & F_WHITE_ON_MOVE) { if( (int) piece < (int) WhiteWazir && - (closure->rf >= BOARD_HEIGHT-(BOARD_HEIGHT/3) || closure->rt >= BOARD_HEIGHT-(BOARD_HEIGHT/3)) ) { + (closure->rf >= BOARD_HEIGHT-zone || closure->rt >= BOARD_HEIGHT-zone) ) { if( (piece == WhitePawn || piece == WhiteQueen) && closure->rt > BOARD_HEIGHT-2 || piece == WhiteKnight && closure->rt > BOARD_HEIGHT-3) /* promotion mandatory */ closure->kind = c == '=' ? IllegalMove : WhitePromotion; @@ -2079,7 +2125,7 @@ Disambiguate (Board board, int flags, DisambiguateClosure *closure) closure->kind = c == '+' ? WhitePromotion : WhiteNonPromotion; } else closure->kind = c == '+' ? IllegalMove : NormalMove; } else { - if( (int) piece < (int) BlackWazir && (closure->rf < BOARD_HEIGHT/3 || closure->rt < BOARD_HEIGHT/3) ) { + if( (int) piece < (int) BlackWazir && (closure->rf < zone || closure->rt < zone) ) { if( (piece == BlackPawn || piece == BlackQueen) && closure->rt < 1 || piece == BlackKnight && closure->rt < 2 ) /* promotion obligatory */ closure->kind = c == '=' ? IllegalMove : BlackPromotion; @@ -2311,6 +2357,7 @@ CoordsToAlgebraic (Board board, int flags, int rf, int ff, int rt, int ft, int p } if(c=='+') *outp++ = c; *outp++ = ToUpper(PieceToChar(piece)); + if(*outp = PieceSuffix(piece)) outp++; if (cl.file || (cl.either && !cl.rank)) { *outp++ = ff + AAA;