* Massachusetts.
*
* Enhancements Copyright 1992-2001, 2002, 2003, 2004, 2005, 2006,
- * 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
+ * 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
*
* Enhancements Copyright 2005 Alessandro Scotti
*
(int) piece2 < (int) EmptySquare);
}
#else
-#define SameColor(piece1, piece2) (piece1 < EmptySquare && piece2 < EmptySquare && (piece1 < BlackPawn) == (piece2 < BlackPawn))
+#define SameColor(piece1, piece2) (piece1 < EmptySquare && piece2 < EmptySquare && (piece1 < BlackPawn) == (piece2 < BlackPawn) || piece1 == DarkSquare || piece2 == DarkSquare)
#endif
char pieceToChar[] = {
for (i = 0; i < BOARD_HEIGHT; i++)
for (j = 0; j < BOARD_WIDTH; j++)
to[i][j] = from[i][j];
- for (j = 0; j < BOARD_FILES-1; j++) // [HGM] gamestate: copy castling rights and ep status
+ for (j = 0; j < BOARD_FILES; j++) // [HGM] gamestate: copy castling rights and ep status
+ to[VIRGIN][j] = from[VIRGIN][j],
to[CASTLING][j] = from[CASTLING][j];
to[HOLDINGS_SET] = 0; // flag used in ICS play
}
}
if(gameInfo.variant == VariantSpartan) rookRange = 2; // in Spartan Chess restrict range to modern Dababba
goto doRook;
-
+
/* Shogi Dragon King has to continue as Ferz after Rook moves */
case SHOGI WhiteDragon:
case SHOGI BlackDragon:
/* Shogi Pawn and Silver General: first the Pawn move, */
/* then the General continues like a Ferz */
case WhiteMan:
- if(gameInfo.variant != VariantMakruk) goto commoner;
+ if(gameInfo.variant != VariantMakruk && gameInfo.variant != VariantASEAN) goto commoner;
case SHOGI WhitePawn:
case SHOGI WhiteFerz:
if (rf < BOARD_HEIGHT-1 &&
break;
case BlackMan:
- if(gameInfo.variant != VariantMakruk) goto commoner;
+ if(gameInfo.variant != VariantMakruk && gameInfo.variant != VariantASEAN) goto commoner;
case SHOGI BlackPawn:
case SHOGI BlackFerz:
if (rf > 0 &&
rf, ff, rf + 1, ff, closure);
for (s = -1; s <= 1; s += 2) {
if (rf < BOARD_HEIGHT-1 && ff + s >= BOARD_LEFT && ff + s < BOARD_RGHT && board[rf + 1][ff + s] == EmptySquare)
- callback(board, flags,
+ callback(board, flags,
rf >= BOARD_HEIGHT-1-promoRank ? WhitePromotion : NormalMove,
rf, ff, rf + 1, ff + s, closure);
if (rf == 1 && ff + 2*s >= BOARD_LEFT && ff + 2*s < BOARD_RGHT && board[3][ff + 2*s] == EmptySquare )
callback(board, flags, NormalMove, rf, ff, 3, ff + 2*s, closure);
}
break;
-
+
case BlackLance:
if(gameInfo.variant == VariantSuper) goto Amazon;
if (rf > 0 && WhitePiece(board[rf - 1][ff]))
rf, ff, rf - 1, ff, closure);
for (s = -1; s <= 1; s += 2) {
if (rf > 0 && ff + s >= BOARD_LEFT && ff + s < BOARD_RGHT && board[rf - 1][ff + s] == EmptySquare)
- callback(board, flags,
+ callback(board, flags,
rf <= promoRank ? BlackPromotion : NormalMove,
rf, ff, rf - 1, ff + s, closure);
if (rf == BOARD_HEIGHT-2 && ff + 2*s >= BOARD_LEFT && ff + 2*s < BOARD_RGHT && board[rf-2][ff + 2*s] == EmptySquare )
int rf, int ff, int rt, int ft,
VOIDSTAR closure));
-void
+void
GenLegalCallback (Board board, int flags, ChessMove kind, int rf, int ff, int rt, int ft, VOIDSTAR closure)
{
register GenLegalClosure *cl = (GenLegalClosure *) closure;
if(quickFlag) flags = flags & ~1 | quickFlag & 1; // [HGM] speed: in quick mode quickFlag specifies side-to-move.
if(rf == DROP_RANK) return LegalDrop(board, flags, ff, rt, ft);
piece = filterPiece = board[rf][ff];
- if(PieceToChar(piece) == '~') filterPiece = DEMOTED piece;
+ if(PieceToChar(piece) == '~') filterPiece = DEMOTED piece;
/* [HGM] Cobra and Falcon are wildcard pieces; consider all their moves legal */
/* (perhaps we should disallow moves that obviously leave us in check?) */
if(gameInfo.variant == VariantSChess && promoChar && promoChar != '=' && board[rf][ff] != WhitePawn && board[rf][ff] != BlackPawn) {
if(board[rf][ff] < BlackPawn) { // white
if(rf != 0) return IllegalMove; // must be on back rank
+ if(!(board[VIRGIN][ff] & VIRGIN_W)) return IllegalMove; // non-virgin
if(board[PieceToNumber(CharToPiece(ToUpper(promoChar)))][BOARD_WIDTH-2] == 0) return ImpossibleMove;// must be in stock
} else {
if(rf != BOARD_HEIGHT-1) return IllegalMove;
+ if(!(board[VIRGIN][ff] & VIRGIN_B)) return IllegalMove; // non-virgin
if(board[BOARD_HEIGHT-1-PieceToNumber(CharToPiece(ToLower(promoChar)))][1] == 0) return ImpossibleMove;
}
} else
return CharToPiece(promoChar) == EmptySquare ? ImpossibleMove : IllegalMove;
else if(flags & F_WHITE_ON_MOVE) {
if( (int) piece < (int) WhiteWazir &&
- (rf >= BOARD_HEIGHT*2/3 || rt >= BOARD_HEIGHT*2/3) ) {
+ (rf >= BOARD_HEIGHT - BOARD_HEIGHT/3 || rt >= BOARD_HEIGHT - BOARD_HEIGHT/3) ) {
if( (piece == WhitePawn || piece == WhiteQueen) && rt > BOARD_HEIGHT-2 ||
piece == WhiteKnight && rt > BOARD_HEIGHT-3) /* promotion mandatory */
cl.kind = promoChar == '=' ? IllegalMove : WhitePromotion;
else if(gameInfo.variant == VariantGiveaway) return MT_STEALMATE; // no check exists, stalemated = win
return inCheck ? MT_CHECKMATE
- : (gameInfo.variant == VariantXiangqi || gameInfo.variant == VariantShatranj) ?
+ : (gameInfo.variant == VariantXiangqi || gameInfo.variant == VariantShatranj || gameInfo.variant == VariantShogi) ?
MT_STAINMATE : MT_STALEMATE;
}
}
if(gameInfo.variant == VariantSChess && c && c != '=' && closure->piece != WhitePawn && closure->piece != BlackPawn) {
if(closure->piece < BlackPawn) { // white
if(closure->rf != 0) closure->kind = IllegalMove; // must be on back rank
+ if(!(board[VIRGIN][closure->ff] & VIRGIN_W)) closure->kind = IllegalMove; // non-virgin
if(board[PieceToNumber(CharToPiece(ToUpper(c)))][BOARD_WIDTH-2] == 0) closure->kind = ImpossibleMove;// must be in stock
} else {
if(closure->rf != BOARD_HEIGHT-1) closure->kind = IllegalMove;
+ if(!(board[VIRGIN][closure->ff] & VIRGIN_B)) closure->kind = IllegalMove; // non-virgin
if(board[BOARD_HEIGHT-1-PieceToNumber(CharToPiece(ToLower(c)))][1] == 0) closure->kind = ImpossibleMove;
}
} else
piece == WhiteKnight && closure->rt > BOARD_HEIGHT-3) /* promotion mandatory */
closure->kind = c == '=' ? IllegalMove : WhitePromotion;
else /* promotion optional, default is defer */
- closure->kind = c == '+' ? WhitePromotion : WhiteNonPromotion;
+ 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) ) {
} else
if (closure->kind == WhitePromotion || closure->kind == BlackPromotion) {
if(c == NULLCHAR) { // missing promoChar on mandatory promotion; use default for variant
- if(gameInfo.variant == VariantShatranj || gameInfo.variant == VariantCourier || gameInfo.variant == VariantMakruk)
+ if(gameInfo.variant == VariantShatranj || gameInfo.variant == VariantCourier ||
+ gameInfo.variant == VariantMakruk || gameInfo.variant == VariantASEAN)
c = PieceToChar(BlackFerz);
else if(gameInfo.variant == VariantGreat)
c = PieceToChar(BlackMan);
/* [HGM] in Shogi non-pawns can promote */
*outp++ = promoChar; // Don't bother to correct move type, return value is never used!
}
- else if (gameInfo.variant != VariantSuper && promoChar &&
+ else if (gameInfo.variant != VariantSuper && promoChar &&
(piece == WhiteLance || piece == BlackLance) ) { // Lance sometimes represents Pawn
*outp++ = '=';
*outp++ = ToUpper(promoChar);
}
*outp = NULLCHAR;
return cl.kind;
-
+
case EmptySquare:
/* Moving a nonexistent piece */
break;
projects / xboard.git / blobdiff