void UpdateListsMaterial(S_BOARD *pos) {
int piece,sq,index,colour;
for(index = 0; index < BRD_SQ_NUM; ++index) {
sq = index;
piece = pos->pieces[index];
ASSERT(PceValidEmptyOffbrd(piece));
if(piece!=OFFBOARD && piece!= EMPTY) {
colour = PieceCol[piece];
ASSERT(SideValid(colour));
if( PieceBig[piece] == TRUE) pos->bigPce[colour]++;
if( PieceMin[piece] == TRUE) pos->minPce[colour]++;
if( PieceMaj[piece] == TRUE) pos->majPce[colour]++;
pos->material[colour] += PieceVal[piece];
ASSERT(pos->pceNum[piece] < 10 && pos->pceNum[piece] >= 0);
pos->pList[piece][pos->pceNum[piece]] = sq;
pos->pceNum[piece]++;
if(piece==wK) pos->KingSq[WHITE] = sq;
if(piece==bK) pos->KingSq[BLACK] = sq;
if(piece==wP) {
SETBIT(pos->pawns[WHITE],SQ64(sq));
SETBIT(pos->pawns[BOTH],SQ64(sq));
} else if(piece==bP) {
SETBIT(pos->pawns[BLACK],SQ64(sq));
SETBIT(pos->pawns[BOTH],SQ64(sq));
}
}
}
}
int SqAttacked(const int sq, const int side, const S_BOARD *pos) {
int piece;
int tmpSQ;
int dir;
int i;
ASSERT(SqOnBoard(sq));
ASSERT(SideValid(side));
ASSERT(checkBoard(pos));
//pawn attacks
if(side == WHITE) {
if(pos->pieces[sq-11] == wP || pos->pieces[sq-9] == wP) return TRUE;
} else { //BLACK
if(pos->pieces[sq+11] == bP || pos->pieces[sq+9] == bP) return TRUE;
}
//knight attacks
for(i = 0; i < 8; i++) {
piece = pos->pieces[ sq + KnDir[i] ];
if(piece != OFFBOARD && IsKn(piece) && PieceColor[piece]==side) return TRUE;
}
//king attacks
for(i = 0; i < 8; i++) {
piece = pos->pieces[ sq + KiDir[i] ];
if(piece != OFFBOARD && IsKi(piece) && PieceColor[piece]==side) {
return TRUE;
}
}
//rook and Queen attacks
for(i = 0; i < 4; i++) {
dir = RkDir[i];
tmpSQ = sq + dir;
piece = pos->pieces[tmpSQ];
while(piece != OFFBOARD) {
if(piece != EMPTY) {
if(piece != OFFBOARD && IsRQ(piece) && PieceColor[piece] == side) return TRUE;
break;
}
tmpSQ += dir;
piece = pos->pieces[tmpSQ];
}
}
//bishop and queen attacks
for(i = 0; i < 4; i++) {
dir = BiDir[i];
tmpSQ = sq + dir;
piece = pos->pieces[tmpSQ];
while(piece != OFFBOARD) {
if(piece != EMPTY) {
if(piece != OFFBOARD && IsBQ(piece) && PieceColor[piece] == side) return TRUE;
break;
}
tmpSQ += dir;
piece = pos->pieces[tmpSQ];
}
}
return FALSE;
}
