extern char installDir[MSG_SIZ];
VariantClass startVariant; /* [HGM] nicks: initial variant */
Boolean abortMatch;
-int deadRanks;
+int deadRanks, handSize;
extern int tinyLayout, smallLayout;
ChessProgramStats programStats;
if( (int)lowestPiece >= BlackPawn ) {
holdingsColumn = 0;
countsColumn = 1;
- holdingsStartRow = BOARD_HEIGHT-1;
+ holdingsStartRow = handSize-1;
direction = -1;
} else {
holdingsColumn = BOARD_WIDTH-1;
direction = 1;
}
- for(i=0; i<BOARD_HEIGHT; i++) { /* clear holdings */
+ for(i=0; i<BOARD_RANKS-1; i++) { /* clear holdings */
board[i][holdingsColumn] = EmptySquare;
board[i][countsColumn] = (ChessSquare) 0;
}
j = seed%4; seed /= 4;
p = board[0][BOARD_LEFT+j]; board[0][BOARD_LEFT+j] = EmptySquare; k = PieceToNumber(p);
board[k][BOARD_WIDTH-1] = p; board[k][BOARD_WIDTH-2]++;
- board[BOARD_HEIGHT-1-k][0] = WHITE_TO_BLACK p; board[BOARD_HEIGHT-1-k][1]++;
+ board[handSize-1-k][0] = WHITE_TO_BLACK p; board[handSize-1-k][1]++;
j = seed%3 + (seed%3 >= j); seed /= 3;
p = board[0][BOARD_LEFT+j]; board[0][BOARD_LEFT+j] = EmptySquare; k = PieceToNumber(p);
board[k][BOARD_WIDTH-1] = p; board[k][BOARD_WIDTH-2]++;
- board[BOARD_HEIGHT-1-k][0] = WHITE_TO_BLACK p; board[BOARD_HEIGHT-1-k][1]++;
+ board[handSize-1-k][0] = WHITE_TO_BLACK p; board[handSize-1-k][1]++;
j = seed%3; seed /= 3;
p = board[0][BOARD_LEFT+j+5]; board[0][BOARD_LEFT+j+5] = EmptySquare; k = PieceToNumber(p);
board[k][BOARD_WIDTH-1] = p; board[k][BOARD_WIDTH-2]++;
- board[BOARD_HEIGHT-1-k][0] = WHITE_TO_BLACK p; board[BOARD_HEIGHT-1-k][1]++;
+ board[handSize-1-k][0] = WHITE_TO_BLACK p; board[handSize-1-k][1]++;
j = seed%2 + (seed%2 >= j); seed /= 2;
p = board[0][BOARD_LEFT+j+5]; board[0][BOARD_LEFT+j+5] = EmptySquare; k = PieceToNumber(p);
board[k][BOARD_WIDTH-1] = p; board[k][BOARD_WIDTH-2]++;
- board[BOARD_HEIGHT-1-k][0] = WHITE_TO_BLACK p; board[BOARD_HEIGHT-1-k][1]++;
+ board[handSize-1-k][0] = WHITE_TO_BLACK p; board[handSize-1-k][1]++;
j = seed%4; seed /= 4; put(board, exoPieces[3], 0, j, ANY);
j = seed%3; seed /= 3; put(board, exoPieces[2], 0, j, ANY);
j = seed%2; seed /= 2; put(board, exoPieces[1], 0, j, ANY);
if(BOARD_HEIGHT > BOARD_RANKS || BOARD_WIDTH > BOARD_FILES)
DisplayFatalError(_("Recompile to support this BOARD_RANKS or BOARD_FILES!"), 0, 2);
+ handSize = BOARD_HEIGHT;
pawnRow = gameInfo.boardHeight - 7; /* seems to work in all common variants */
if(pawnRow < 1) pawnRow = 1;
if(gameInfo.variant == VariantMakruk || gameInfo.variant == VariantASEAN ||
if(gameInfo.variant == VariantGreat) { // promotion commoners
initialPosition[PieceToNumber(WhiteMan)][BOARD_WIDTH-1] = WhiteMan;
initialPosition[PieceToNumber(WhiteMan)][BOARD_WIDTH-2] = 9;
- initialPosition[BOARD_HEIGHT-1-PieceToNumber(WhiteMan)][0] = BlackMan;
- initialPosition[BOARD_HEIGHT-1-PieceToNumber(WhiteMan)][1] = 9;
+ initialPosition[handSize-1-PieceToNumber(WhiteMan)][0] = BlackMan;
+ initialPosition[handSize-1-PieceToNumber(WhiteMan)][1] = 9;
}
if( gameInfo.variant == VariantSChess ) {
initialPosition[1][0] = BlackMarshall;
piece = boards[currentMove][fromY][fromX];
if(gameInfo.variant == VariantChu) {
- promotionZoneSize = BOARD_HEIGHT/3;
+ promotionZoneSize = (BOARD_HEIGHT - deadRanks)/3;
if(legal[toY][toX] == 6) return FALSE; // no promotion if highlights deny it
highestPromotingPiece = (PieceToChar(piece) == '+' || PieceToChar(CHUPROMOTED(piece)) != '+') ? WhitePawn : WhiteKing;
} else if(gameInfo.variant == VariantShogi) {
- promotionZoneSize = BOARD_HEIGHT/3 +(BOARD_HEIGHT == 8);
+ promotionZoneSize = (BOARD_HEIGHT- deadRanks)/3 +(BOARD_HEIGHT == 8);
highestPromotingPiece = (int)WhiteAlfil;
+ if(PieceToChar(piece) != '+' || PieceToChar(CHUPROMOTED(piece)) == '+') highestPromotingPiece = piece;
} else if(gameInfo.variant == VariantMakruk || gameInfo.variant == VariantGrand || gameInfo.variant == VariantChuChess) {
promotionZoneSize = 3;
}
if(fromY < promotionZoneSize && gameInfo.variant == VariantChuChess) return FALSE;
highestPromotingPiece = WHITE_TO_BLACK highestPromotingPiece;
} else {
- if( toY < BOARD_HEIGHT - promotionZoneSize &&
- fromY < BOARD_HEIGHT - promotionZoneSize) return FALSE;
- if(fromY >= BOARD_HEIGHT - promotionZoneSize && gameInfo.variant == VariantChuChess)
+ if( toY < BOARD_HEIGHT - deadRanks - promotionZoneSize &&
+ fromY < BOARD_HEIGHT - deadRanks - promotionZoneSize) return FALSE;
+ if(fromY >= BOARD_HEIGHT - deadRanks - promotionZoneSize && gameInfo.variant == VariantChuChess)
return FALSE;
}
return FALSE;
}
} else {
- if(toY == BOARD_HEIGHT-1 && piece == WhitePawn ||
- toY == BOARD_HEIGHT-1 && piece == WhiteQueen ||
- toY >= BOARD_HEIGHT-2 && piece == WhiteKnight) {
+ if(toY == BOARD_HEIGHT-deadRanks-1 && piece == WhitePawn ||
+ toY == BOARD_HEIGHT-deadRanks-1 && piece == WhiteQueen ||
+ toY >= BOARD_HEIGHT-deadRanks-2 && piece == WhiteKnight) {
*promoChoice = '+';
return FALSE;
}
if(appData.debugMode) fprintf(debugFP, "Drop move %d, curr=%d, x=%d,y=%d, p=%d\n",
moveType, currentMove, fromX, fromY, boards[currentMove][fromY][fromX]);
// holdings might not be sent yet in ICS play; we have to figure out which piece belongs here
- if(fromX == 0) fromY = BOARD_HEIGHT-1 - fromY; // black holdings upside-down
+ if(fromX == 0) fromY = handSize-1 - fromY; // black holdings upside-down
fromX = fromX ? WhitePawn : BlackPawn; // first piece type in selected holdings
while(PieceToChar(fromX) == '.' || PieceToChar(fromX) == '+' || PieceToNumber(fromX) != fromY && fromX != (int) EmptySquare) fromX++;
fromY = DROP_RANK;
if(WhiteOnMove(currentMove)) {
if(!boards[currentMove][k][BOARD_WIDTH-2]) return 0;
} else {
- if(!boards[currentMove][BOARD_HEIGHT-1-k][1]) return 0;
+ if(!boards[currentMove][handSize-1-k][1]) return 0;
}
}
(gameInfo.variant == VariantShatranj || gameInfo.variant == VariantCourier ||
gameInfo.variant == VariantMakruk) && !*engineVariant) return FALSE;
return (piece == BlackPawn && y <= zone ||
- piece == WhitePawn && y >= BOARD_HEIGHT-1-zone ||
+ piece == WhitePawn && y >= BOARD_HEIGHT-1-deadRanks-zone ||
piece == BlackLance && y <= zone ||
- piece == WhiteLance && y >= BOARD_HEIGHT-1-zone );
+ piece == WhiteLance && y >= BOARD_HEIGHT-1-deadRanks-zone );
}
void
if(x == BOARD_LEFT-2 && piece >= BlackPawn) {
n = PieceToNumber(piece - (int)BlackPawn);
if(n >= gameInfo.holdingsSize) { n = 0; piece = BlackPawn; }
- boards[currentMove][BOARD_HEIGHT-1 - n][0] = piece;
- boards[currentMove][BOARD_HEIGHT-1 - n][1]++;
+ boards[currentMove][handSize-1 - n][0] = piece;
+ boards[currentMove][handSize-1 - n][1]++;
} else
if(x == BOARD_RGHT+1 && piece < BlackPawn) {
n = PieceToNumber(piece);
p -= (int)BlackPawn;
p = PieceToNumber((ChessSquare)p);
if(p >= gameInfo.holdingsSize) p = 0;
- if(--board[BOARD_HEIGHT-1-p][1] <= 0)
- board[BOARD_HEIGHT-1-p][0] = EmptySquare;
- if((int)board[BOARD_HEIGHT-1-p][1] < 0)
- board[BOARD_HEIGHT-1-p][1] = 0;
+ if(--board[handSize-1-p][1] <= 0)
+ board[handSize-1-p][0] = EmptySquare;
+ if((int)board[handSize-1-p][1] < 0)
+ board[handSize-1-p][1] = 0;
}
}
if (captured != EmptySquare && gameInfo.holdingsSize > 0
}
p = PieceToNumber((ChessSquare)p);
if(p >= gameInfo.holdingsSize) { p = 0; captured = WhitePawn; }
- board[BOARD_HEIGHT-1-p][1]++;
- board[BOARD_HEIGHT-1-p][0] = WHITE_TO_BLACK captured;
+ board[handSize-1-p][1]++;
+ board[handSize-1-p][0] = WHITE_TO_BLACK captured;
}
}
} else if (gameInfo.variant == VariantAtomic) {
if(!--board[k][BOARD_WIDTH-2])
board[k][BOARD_WIDTH-1] = EmptySquare;
} else {
- if(!--board[BOARD_HEIGHT-1-k][1])
- board[BOARD_HEIGHT-1-k][0] = EmptySquare;
+ if(!--board[handSize-1-k][1])
+ board[handSize-1-k][0] = EmptySquare;
}
}
}
if(x == BOARD_LEFT-2 && selection >= BlackPawn) {
n = PieceToNumber(selection - BlackPawn);
if(n >= gameInfo.holdingsSize) { n = 0; selection = BlackPawn; }
- boards[0][BOARD_HEIGHT-1-n][0] = selection;
- boards[0][BOARD_HEIGHT-1-n][1]++;
+ boards[0][handSize-1-n][0] = selection;
+ boards[0][handSize-1-n][1]++;
} else
if(x == BOARD_RGHT+1 && selection < BlackPawn) {
n = PieceToNumber(selection);
fromY = moveList[move - 1][1] - ONE;
toX = moveList[move - 1][2] - AAA;
toY = moveList[move - 1][3] - ONE;
- if (fromY == (whiteToPlay ? BOARD_HEIGHT-2 : 1) &&
- toY == (whiteToPlay ? BOARD_HEIGHT-4 : 3) &&
- boards[move][toY][toX] == (whiteToPlay ? BlackPawn : WhitePawn) &&
- fromX == toX) {
+ if ((whiteToPlay ? toY < fromY - 1 : toY > fromY + 1) &&
+ boards[move][toY][toX] == (whiteToPlay ? BlackPawn : WhitePawn) ) {
/* 2-square pawn move just happened */
- *p++ = toX + AAA;
- *p++ = whiteToPlay ? '6'+BOARD_HEIGHT-8 : '3';
+ *p++ = (3*toX + 5*fromX + 4)/8 + AAA;
+ *p++ = (3*toY + 5*fromY + 4)/8 + ONE;
+ if(gameInfo.variant == VariantBerolina) {
+ *p++ = toX + AAA;
+ *p++ = toY + ONE;
+ }
} else {
*p++ = '-';
}
i = (int)piece - (int)BlackPawn;
i = PieceToNumber((ChessSquare)i);
if( i >= gameInfo.holdingsSize ) return FALSE;
- board[BOARD_HEIGHT-1-i][0] = piece; /* black holdings */
- board[BOARD_HEIGHT-1-i][1]++; /* black counts */
+ board[handSize-1-i][0] = piece; /* black holdings */
+ board[handSize-1-i][1]++; /* black counts */
bcnt++;
} else {
i = (int)piece - (int)WhitePawn;
if(*p=='-') {
p++; board[EP_STATUS] = EP_NONE;
} else {
- char c = *p++ - AAA;
-
- if(c < BOARD_LEFT || c >= BOARD_RGHT) return TRUE;
- if(*p >= '0' && *p <='9') p++;
- board[EP_STATUS] = c;
+ int d, r, c = *p - AAA;
+
+ if(c >= BOARD_LEFT && c < BOARD_RGHT) {
+ p++;
+ board[EP_STATUS] = board[EP_FILE] = c; r = 0;
+ if(*p >= '0' && *p <='9') r = board[EP_RANK] = *p++ - ONE;
+ d = (r < BOARD_HEIGHT << 1 ? 1 : -1); // assume double-push (P next to e.p. square nearer center)
+ if(board[r+d][c] == EmptySquare) d *= 2; // but if no Pawn there, triple push
+ board[LAST_TO] = 256*(r + d) + c;
+ c = *p++ - AAA;
+ if(c >= BOARD_LEFT && c < BOARD_RGHT) { // mover explicitly mentioned
+ if(*p >= '0' && *p <='9') r = board[EP_RANK] = *p++ - ONE;
+ board[LAST_TO] = 256*r + c;
+ if(!(board[EP_RANK]-r & 1)) board[EP_RANK] |= 128;
+ }
+ }
}
}