bool CBitbases::probe(eval_t& eval, const CBoard& board)
{
if (loaded())
{
int32 player = (board.getSide() == eBlack ? _BLACK : _WHITE);
int32 piece[MAX_PIECES] = { _EMPTY, _EMPTY, _EMPTY, _EMPTY, _EMPTY, _EMPTY, _EMPTY, _EMPTY, _EMPTY };
int32 square[MAX_PIECES] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
int32 count = 0;
bb_t pieces = board.getOccupBits();
while (pieces)
{
EField from = popFirstBit(pieces);
EPiece type = board.getPiece(from);
square[count] = from;
switch (type)
{
case eW_P: piece[count] = _WPAWN; break;
case eW_N: piece[count] = _WKNIGHT; break;
case eW_B: piece[count] = _WBISHOP; break;
case eW_R: piece[count] = _WROOK; break;
case eW_Q: piece[count] = _WQUEEN; break;
case eW_K: piece[count] = _WKING; break;
case eB_P: piece[count] = _BPAWN; break;
case eB_N: piece[count] = _BKNIGHT; break;
case eB_B: piece[count] = _BBISHOP; break;
case eB_R: piece[count] = _BROOK; break;
case eB_Q: piece[count] = _BQUEEN; break;
case eB_K: piece[count] = _BKING; break;
case eNP: break;
}
++count;
}
eval_t eval_eg = m_lib.probe_egbb(player, piece, square);
if (eval_eg != NOTFOUND)
{
eval = eval_eg;
++m_hits;
return(true);
}
}
return(false);
}
