static void AddCaptureMove(const CHESS_BOARD *pos, int move, MOVELIST *list) {
ASSERT(SqOnBoard(FROMSQ(move)));
ASSERT(SqOnBoard(TOSQ(move)));
ASSERT(PieceValid(CAPTURED(move)));
ASSERT(CheckBoard(pos));
list->moves[list->count].move = move;
list->moves[list->count].score = MvvLvaScores[CAPTURED(move)][pos->pieces[FROMSQ(move)]] + 1000000;
list->count++;
}
int MoveListOk(const S_MOVELIST *list, const S_BOARD *pos) {
if(list->count < 0 || list->count >= MAXPOSITIONMOVES) {
return FALSE;
}
int MoveNum;
int from = 0;
int to = 0;
for(MoveNum = 0; MoveNum < list->count; ++MoveNum) {
to = TOSQ(list->moves[MoveNum].move);
from = FROMSQ(list->moves[MoveNum].move);
if(!SqOnBoard(to) || !SqOnBoard(from)) {
return FALSE;
}
if(!PieceValid(pos->pieces[from])) {
PrintBoard(pos);
return FALSE;
}
}
return TRUE;
}
void GenerateAllCaps(const CHESS_BOARD *pos, MOVELIST *list) {
ASSERT(CheckBoard(pos));
list->count = 0;
int pce = EMPTY;
int side = pos->side;
int sq = 0; int t_sq = 0;
int pceNum = 0;
int dir = 0;
int index = 0;
int pceIndex = 0;
if (side == WHITE) {
for (pceNum = 0; pceNum < pos->pieceNum[wP]; ++pceNum) {
sq = pos->pList[wP][pceNum];
ASSERT(SqOnBoard(sq));
if (!SQOFFBOARD(sq + 9) && PieceCol[pos->pieces[sq + 9]] == BLACK) {
AddWhitePawnCapMove(pos, sq, sq + 9, pos->pieces[sq + 9], list);
}
if (!SQOFFBOARD(sq + 11) && PieceCol[pos->pieces[sq + 11]] == BLACK) {
AddWhitePawnCapMove(pos, sq, sq + 11, pos->pieces[sq + 11], list);
}
if (pos->enPas != NO_SQ) {
if (sq + 9 == pos->enPas) {
AddEnPassantMove(pos, MOVE(sq, sq + 9, EMPTY, EMPTY, MFLAGEP), list);
}
if (sq + 11 == pos->enPas) {
AddEnPassantMove(pos, MOVE(sq, sq + 11, EMPTY, EMPTY, MFLAGEP), list);
}
}
}
}
else {
for (pceNum = 0; pceNum < pos->pieceNum[bP]; ++pceNum) {
sq = pos->pList[bP][pceNum];
ASSERT(SqOnBoard(sq));
if (!SQOFFBOARD(sq - 9) && PieceCol[pos->pieces[sq - 9]] == WHITE) {
AddBlackPawnCapMove(pos, sq, sq - 9, pos->pieces[sq - 9], list);
}
if (!SQOFFBOARD(sq - 11) && PieceCol[pos->pieces[sq - 11]] == WHITE) {
AddBlackPawnCapMove(pos, sq, sq - 11, pos->pieces[sq - 11], list);
}
if (pos->enPas != NO_SQ) {
if (sq - 9 == pos->enPas) {
AddEnPassantMove(pos, MOVE(sq, sq - 9, EMPTY, EMPTY, MFLAGEP), list);
}
if (sq - 11 == pos->enPas) {
AddEnPassantMove(pos, MOVE(sq, sq - 11, EMPTY, EMPTY, MFLAGEP), list);
}
}
}
}
/* Loop for slide pieces */
pceIndex = LoopSlideIndex[side];
pce = LoopSlidePce[pceIndex++];
while (pce != 0) {
ASSERT(PieceValid(pce));
for (pceNum = 0; pceNum < pos->pieceNum[pce]; ++pceNum) {
sq = pos->pList[pce][pceNum];
ASSERT(SqOnBoard(sq));
for (index = 0; index < NumDir[pce]; ++index) {
dir = PceDir[pce][index];
t_sq = sq + dir;
while (!SQOFFBOARD(t_sq)) {
// BLACK ^ 1 == WHITE WHITE ^ 1 == BLACK
if (pos->pieces[t_sq] != EMPTY) {
if (PieceCol[pos->pieces[t_sq]] == (side ^ 1)) {
AddCaptureMove(pos, MOVE(sq, t_sq, pos->pieces[t_sq], EMPTY, 0), list);
}
break;
}
t_sq += dir;
}
}
}
pce = LoopSlidePce[pceIndex++];
}
/* Loop for non slide */
pceIndex = LoopNonSlideIndex[side];
pce = LoopNonSlidePce[pceIndex++];
while (pce != 0) {
ASSERT(PieceValid(pce));
for (pceNum = 0; pceNum < pos->pieceNum[pce]; ++pceNum) {
sq = pos->pList[pce][pceNum];
ASSERT(SqOnBoard(sq));
for (index = 0; index < NumDir[pce]; ++index) {
dir = PceDir[pce][index];
t_sq = sq + dir;
if (SQOFFBOARD(t_sq)) {
continue;
}
// BLACK ^ 1 == WHITE WHITE ^ 1 == BLACK
if (pos->pieces[t_sq] != EMPTY) {
if (PieceCol[pos->pieces[t_sq]] == (side ^ 1)) {
AddCaptureMove(pos, MOVE(sq, t_sq, pos->pieces[t_sq], EMPTY, 0), list);
}
continue;
}
}
}
pce = LoopNonSlidePce[pceIndex++];
}
ASSERT(MoveListOk(list, pos));
}
void GenerateAllMoves(const CHESS_BOARD *pos, MOVELIST *list) {
ASSERT(CheckBoard(pos));
list->count = 0;
int pce = EMPTY;
int side = pos->side;
int sq = 0; int t_sq = 0;
int pceNum = 0;
int dir = 0;
int index = 0;
int pceIndex = 0;
if (side == WHITE) {
for (pceNum = 0; pceNum < pos->pieceNum[wP]; ++pceNum) {
sq = pos->pList[wP][pceNum];
ASSERT(SqOnBoard(sq));
if (pos->pieces[sq + 10] == EMPTY) {
AddWhitePawnMove(pos, sq, sq + 10, list);
if (RanksBrd[sq] == RANK_2 && pos->pieces[sq + 20] == EMPTY) {
AddQuietMove(pos, MOVE(sq, (sq + 20), EMPTY, EMPTY, MFLAGPS), list);
}
}
if (!SQOFFBOARD(sq + 9) && PieceCol[pos->pieces[sq + 9]] == BLACK) {
AddWhitePawnCapMove(pos, sq, sq + 9, pos->pieces[sq + 9], list);
}
if (!SQOFFBOARD(sq + 11) && PieceCol[pos->pieces[sq + 11]] == BLACK) {
AddWhitePawnCapMove(pos, sq, sq + 11, pos->pieces[sq + 11], list);
}
if (pos->enPas != NO_SQ) {
if (sq + 9 == pos->enPas) {
AddEnPassantMove(pos, MOVE(sq, sq + 9, EMPTY, EMPTY, MFLAGEP), list);
}
if (sq + 11 == pos->enPas) {
AddEnPassantMove(pos, MOVE(sq, sq + 11, EMPTY, EMPTY, MFLAGEP), list);
}
}
}
if (pos->castlePerm & WKCA) {
if (pos->pieces[F1] == EMPTY && pos->pieces[G1] == EMPTY) {
if (!SqAttacked(E1, BLACK, pos) && !SqAttacked(F1, BLACK, pos)) {
AddQuietMove(pos, MOVE(E1, G1, EMPTY, EMPTY, MFLAGCA), list);
}
}
}
if (pos->castlePerm & WQCA) {
if (pos->pieces[D1] == EMPTY && pos->pieces[C1] == EMPTY && pos->pieces[B1] == EMPTY) {
if (!SqAttacked(E1, BLACK, pos) && !SqAttacked(D1, BLACK, pos)) {
AddQuietMove(pos, MOVE(E1, C1, EMPTY, EMPTY, MFLAGCA), list);
}
}
}
}
else {
for (pceNum = 0; pceNum < pos->pieceNum[bP]; ++pceNum) {
sq = pos->pList[bP][pceNum];
ASSERT(SqOnBoard(sq));
if (pos->pieces[sq - 10] == EMPTY) {
AddBlackPawnMove(pos, sq, sq - 10, list);
if (RanksBrd[sq] == RANK_7 && pos->pieces[sq - 20] == EMPTY) {
AddQuietMove(pos, MOVE(sq, (sq - 20), EMPTY, EMPTY, MFLAGPS), list);
}
}
if (!SQOFFBOARD(sq - 9) && PieceCol[pos->pieces[sq - 9]] == WHITE) {
AddBlackPawnCapMove(pos, sq, sq - 9, pos->pieces[sq - 9], list);
}
if (!SQOFFBOARD(sq - 11) && PieceCol[pos->pieces[sq - 11]] == WHITE) {
AddBlackPawnCapMove(pos, sq, sq - 11, pos->pieces[sq - 11], list);
}
if (pos->enPas != NO_SQ) {
if (sq - 9 == pos->enPas) {
AddEnPassantMove(pos, MOVE(sq, sq - 9, EMPTY, EMPTY, MFLAGEP), list);
}
if (sq - 11 == pos->enPas) {
AddEnPassantMove(pos, MOVE(sq, sq - 11, EMPTY, EMPTY, MFLAGEP), list);
}
}
}
// castling
if (pos->castlePerm & BKCA) {
if (pos->pieces[F8] == EMPTY && pos->pieces[G8] == EMPTY) {
if (!SqAttacked(E8, WHITE, pos) && !SqAttacked(F8, WHITE, pos)) {
AddQuietMove(pos, MOVE(E8, G8, EMPTY, EMPTY, MFLAGCA), list);
}
}
}
if (pos->castlePerm & BQCA) {
if (pos->pieces[D8] == EMPTY && pos->pieces[C8] == EMPTY && pos->pieces[B8] == EMPTY) {
if (!SqAttacked(E8, WHITE, pos) && !SqAttacked(D8, WHITE, pos)) {
AddQuietMove(pos, MOVE(E8, C8, EMPTY, EMPTY, MFLAGCA), list);
}
}
}
}
/* Loop for slide pieces */
pceIndex = LoopSlideIndex[side];
pce = LoopSlidePce[pceIndex++];
while (pce != 0) {
ASSERT(PieceValid(pce));
for (pceNum = 0; pceNum < pos->pieceNum[pce]; ++pceNum) {
sq = pos->pList[pce][pceNum];
ASSERT(SqOnBoard(sq));
for (index = 0; index < NumDir[pce]; ++index) {
dir = PceDir[pce][index];
t_sq = sq + dir;
while (!SQOFFBOARD(t_sq)) {
// BLACK ^ 1 == WHITE WHITE ^ 1 == BLACK
if (pos->pieces[t_sq] != EMPTY) {
if (PieceCol[pos->pieces[t_sq]] == (side ^ 1)) {
AddCaptureMove(pos, MOVE(sq, t_sq, pos->pieces[t_sq], EMPTY, 0), list);
}
break;
}
AddQuietMove(pos, MOVE(sq, t_sq, EMPTY, EMPTY, 0), list);
t_sq += dir;
}
}
}
pce = LoopSlidePce[pceIndex++];
}
/* Loop for non slide */
pceIndex = LoopNonSlideIndex[side];
pce = LoopNonSlidePce[pceIndex++];
while (pce != 0) {
ASSERT(PieceValid(pce));
for (pceNum = 0; pceNum < pos->pieceNum[pce]; ++pceNum) {
sq = pos->pList[pce][pceNum];
ASSERT(SqOnBoard(sq));
for (index = 0; index < NumDir[pce]; ++index) {
dir = PceDir[pce][index];
t_sq = sq + dir;
if (SQOFFBOARD(t_sq)) {
continue;
}
// BLACK ^ 1 == WHITE WHITE ^ 1 == BLACK
if (pos->pieces[t_sq] != EMPTY) {
if (PieceCol[pos->pieces[t_sq]] == (side ^ 1)) {
AddCaptureMove(pos, MOVE(sq, t_sq, pos->pieces[t_sq], EMPTY, 0), list);
}
continue;
}
AddQuietMove(pos, MOVE(sq, t_sq, EMPTY, EMPTY, 0), list);
}
}
pce = LoopNonSlidePce[pceIndex++];
}
//ASSERT(MoveListOk(list, pos));
}