public void GeneratesCorrectBishopMasksForSquares(Square square, ulong expectedMask)
{
// Act
Bitboard mask = MagicGenerator.BishopMask(square);
// Assert
Assert.Equal <Bitboard>(expectedMask, mask);
}
public void CanLoadMagicsFromEmbeddedResource()
{
// Act
var magics = MagicGenerator.LoadMagics();
// Assert
magics.Should().HaveCount(128);
}
public void CanFindAMagicNumberForASquare()
{
// Act
(Bitboard magic, int bitCount) = MagicGenerator.FindMagic(Square.a1, 100_000_000, Piece.Rook);
// Assert
Assert.NotEqual <Bitboard>(0, magic);
Assert.NotEqual(0, bitCount);
}
private Storage.MagicBitboard[] GetMagicBitboards()
{
var generator = new MagicGenerator();
var rv = new Storage.MagicBitboard[64];
for (var index = 0; index < 64; index++)
{
var obstructionBoard = MoveObstructionBoards[index];
rv[index] = generator.GenerateMagicKey(obstructionBoard);
}
return(rv);
}
static void Main(string[] args)
{
if (args.Contains("--generateMagics"))
{
string targetFile = Path.Combine(Environment.CurrentDirectory, "magics.txt");
MagicGenerator.GenerateMagicsToFile(targetFile);
return;
}
var listener = new UciListener();
listener.Run();
}
public void GetAllOccupanciesReturnsCorrectBitboards()
{
// Assemble
Bitboard mask = 0x00_00_40_20_10_08_04_00; // Bishop on b1
// Act
Bitboard[] occupancies = MagicGenerator.GetAllPossibleOccupanciesForMask(mask);
// Assert
Bitboard[] expectedOccs = new Bitboard[]
{
0x00_00_00_00_00_00_00_00,
0x00_00_00_00_00_00_04_00,
0x00_00_00_00_00_08_00_00,
0x00_00_00_00_00_08_04_00,
0x00_00_00_00_10_00_00_00,
0x00_00_00_00_10_00_04_00,
0x00_00_00_00_10_08_00_00,
0x00_00_00_00_10_08_04_00,
0x00_00_00_20_00_00_00_00,
0x00_00_00_20_00_00_04_00,
0x00_00_00_20_00_08_00_00,
0x00_00_00_20_00_08_04_00,
0x00_00_00_20_10_00_00_00,
0x00_00_00_20_10_00_04_00,
0x00_00_00_20_10_08_00_00,
0x00_00_00_20_10_08_04_00,
0x00_00_40_00_00_00_00_00,
0x00_00_40_00_00_00_04_00,
0x00_00_40_00_00_08_00_00,
0x00_00_40_00_00_08_04_00,
0x00_00_40_00_10_00_00_00,
0x00_00_40_00_10_00_04_00,
0x00_00_40_00_10_08_00_00,
0x00_00_40_00_10_08_04_00,
0x00_00_40_20_00_00_00_00,
0x00_00_40_20_00_00_04_00,
0x00_00_40_20_00_08_00_00,
0x00_00_40_20_00_08_04_00,
0x00_00_40_20_10_00_00_00,
0x00_00_40_20_10_00_04_00,
0x00_00_40_20_10_08_00_00,
0x00_00_40_20_10_08_04_00,
};
occupancies.Should().BeEquivalentTo(expectedOccs);
}
static SlidingPieceMoves()
{
var magics = MagicGenerator.LoadMagics();
foreach (var magicDetail in magics)
{
if (magicDetail.Piece == Piece.Bishop)
{
_bishopMagics[(int)magicDetail.Square] = magicDetail;
_bishopAttacks[(int)magicDetail.Square] = MagicGenerator.CreateAttacksMapForMagic(magicDetail);
}
else if (magicDetail.Piece == Piece.Rook)
{
_rookMagics[(int)magicDetail.Square] = magicDetail;
_rookAttacks[(int)magicDetail.Square] = MagicGenerator.CreateAttacksMapForMagic(magicDetail);
}
}
for (int s = 0; s < 64; s++)
{
_bishopMasks[s] = MagicGenerator.BishopMask((Square)s);
_rookMasks[s] = MagicGenerator.RookMask((Square)s);
}
}
