public static BitBoard XrayBishopAttacks(this Square square, BitBoard occupied, BitBoard blockers)
{
var attacks = square.BishopAttacks(occupied);
blockers &= attacks;
return(attacks ^ square.BishopAttacks(occupied ^ blockers));
}
public static BitBoard GetAttacks(this Square square, EPieceType pieceType, BitBoard occupied = new BitBoard())
{
return(pieceType == EPieceType.Knight || pieceType == EPieceType.King
? PseudoAttacksBB[pieceType.AsInt(), square.AsInt()]
: pieceType == EPieceType.Bishop
? square.BishopAttacks(occupied)
: pieceType == EPieceType.Rook
? square.RookAttacks(occupied)
: pieceType == EPieceType.Queen
? square.QueenAttacks(occupied)
: Zero);
}
public static BitBoard GetAttacks(this Square square, EPieceType pieceType, BitBoard occupied = new BitBoard())
{
switch (pieceType)
{
case EPieceType.Knight:
case EPieceType.King:
return(PseudoAttacksBB[pieceType.AsInt(), square.AsInt()]);
case EPieceType.Bishop:
return(square.BishopAttacks(occupied));
case EPieceType.Rook:
return(square.RookAttacks(occupied));
case EPieceType.Queen:
return(square.QueenAttacks(occupied));
default:
return(EmptyBitBoard);
}
}