protected Int32 generateSwaps(List <Move> moves, Int32 nTo)
{
var qpTo = BIT0 << nTo;
var bWTM = WTM();
var friend = getSide(bWTM);
var qpFriend = friend.Piece;
var vKingPos = getKingPos(bWTM);
var bInCheck = InCheck();
clearPseudoSwapLists(moves); // ~32 MHz
#if UnshadowRay2
var bRayCheck = false;
#endif
if (bInCheck)
{
var qpChx = checkers(bWTM);
#if UnshadowRay
bRayCheck = (qpChx & (DiagPiece | RectPiece)) != 0;
#endif
var bSingleCheck = IsOneOrNone(qpChx);
if (bSingleCheck)
{
var qpFoe = qpChx & qpTo;
if (qpFoe != 0)
{
addPieceCaptures(qpFoe, qpFriend);
addPawnCaptures(friend, qpFoe);
}
} // bSingleCheck
} //!bInCheck
else
{
var qpFoe = qpTo & ~qpFriend;
addPieceCaptures(qpFoe, qpFriend);
addPawnCaptures(friend, qpFoe);
} //!bInCheck
#if UnshadowRay2
addKingCaptures(qpTo & ~qpFriend, vKingPos, bRayCheck);
#else
addKingCaptures(qpTo & ~qpFriend, vKingPos);
#endif
addPseudoSwaps(moves);
return(State.IncPseudoMoveTotal(moves.Count));
}
protected Int32 generateMaterialMoves(List <Move> moves)
{
var bWTM = WTM();
var bInCheck = InCheck();
(BoardSide friend, BoardSide foe) = getSides(bWTM);
var qpFriend = friend.Piece;
var vKingPos = getKingPos(bWTM);
clearPseudoMaterialMoveLists(moves);
#if UnshadowRay2
var bRayCheck = false;
#endif
if (bInCheck)
{
var qpChx = checkers(bWTM);
#if UnshadowRay
bRayCheck = (qpChx & (DiagPiece | RectPiece)) != 0;
#endif
var qpChx2 = qpChx;
var nChx = RemoveLo(ref qpChx2);
var bSingleCheck = qpChx2 == 0;
if (bSingleCheck)
{
var qpRay = interpositions(nChx, vKingPos);
if (qpChx != 0)
{
addPieceCaptures(qpChx, qpFriend);
var qpPawnCapture = qpChx;
if (IsPassed() && (qpChx & Pawn) != 0)
{
qpPawnCapture |= BIT0 << ep(FlagsLo);
}
addPawnCaptures(friend, qpPawnCapture);
addPromotions(friend, qpRay);
}
} // bSingleCheck
} //!bInCheck
else
{
var qpFoe = foe.Piece;
addPieceCaptures(qpFoe, qpFriend);
var qpPawnCapture = qpFoe;
if (IsPassed())
{
qpPawnCapture |= BIT0 << ep(FlagsLo);
}
addPawnCaptures(friend, qpPawnCapture);
addPromotions(friend, ~RankPiece);
} //!bInCheck
#if UnshadowRay2
addKingCaptures(~qpFriend, vKingPos, bRayCheck);
#else
addKingCaptures(~qpFriend, vKingPos, bWTM);
#endif
addPseudoMaterialMoves(moves);
return(State.IncPseudoMoveTotal(moves.Count));
}
protected Int32 generate(List <Move> moves, Boolean bSwap) // Adds all Pseudo Moves at 400 to 1000 KHz; Generates moves at ~18 MHz
{
var bWTM = WTM();
var bInCheck = InCheck();
(BoardSide friend, BoardSide foe) = getSides(bWTM);
var qpFriend = friend.Piece;
var vKingPos = getKingPos(bWTM);
clearPseudoMoveLists(moves, bSwap);
#if UnshadowRay2
var bRayCheck = false;
#endif
if (bInCheck)
{
var qpChx = checkers(bWTM);
#if UnshadowRay
bRayCheck = (qpChx & (DiagPiece | RectPiece)) != 0;
#endif
var qpChx2 = qpChx;
var nChx = RemoveLo(ref qpChx2);
var bSingleCheck = qpChx2 == 0;
if (bSingleCheck)
{
//
// Interposition includes capture of the checking
// piece, and interpositions along a ray giving check.
// Only Moves for these To Squares will be considered:
//
var qpRay = interpositions(nChx, vKingPos);
var qpTo = qpChx | qpRay;
if (qpTo != 0)
{
addPieceCapturesAndMoves(qpTo, qpFriend);
}
var qpPawnCapture = qpChx;
if (IsPassed() && (qpChx & Pawn) != 0)
{
qpPawnCapture |= BIT0 << ep(FlagsLo);
}
addPawnCaptures(friend, qpPawnCapture);
addPawnMoves(friend, qpRay);
} // bSingleCheck
}
else //!bInCheck
{
addPieceCapturesAndMoves(~qpFriend, qpFriend);
var qpFoe = foe.Piece;
var qpPawnCapture = qpFoe;
if (IsPassed())
{
qpPawnCapture |= BIT0 << ep(FlagsLo);
}
addPawnCaptures(friend, qpPawnCapture);
addPawnMoves(friend, ~RankPiece);
var friendRule = getRule(bWTM);
addCastles(friend, friendRule, foe);
} //!bInCheck
#if UnshadowRay2
addKingCapturesAndMoves(~qpFriend, vKingPos, bRayCheck);
#else
addKingCapturesAndMoves(~qpFriend, vKingPos);
#endif
if (bSwap && !bInCheck)
{
addPseudoMovesGood(moves);
}
else
{
addPseudoMoves(moves);
}
return(State.IncPseudoMoveTotal(moves.Count));
}