Ejemplo n.º 1
0
        private static ulong[] RookMoves()
        {
            var Result  = new ulong[64];
            var Address = new BoardAddress(0);

            for (int i = 0; i < 64; i++)
            {
                Address.Index = i;
                Result[i]     = Masks.Ranks[Address.Rank] ^ Masks.Files[Address.File];
            }
            return(Result);
        }
Ejemplo n.º 2
0
        private static ulong[] BishopMoves()
        {
            var Result  = new ulong[64];
            var Address = new BoardAddress(0);

            for (int i = 0; i < 64; i++)
            {
                Address.Index = i;
                Result[i]     = Masks.Slash[Address.SlashIndex] ^ Masks.BackSlash[Address.BackSlashIndex];
            }
            return(Result);
        }
Ejemplo n.º 3
0
        private static ulong[] PawnMoves(bool white)
        {
            var   Result   = new ulong[64];
            ulong Position = 1;
            var   Address  = new BoardAddress(0);

            for (int i = 0; i < 64; i++)
            {
                Address.Index = i;

                if (white)   // white
                {
                    if (Address.Rank > 0)
                    {
                        Result[i] = Position << 8; // single move
                        if (Address.Rank == 1)
                        {
                            Result[i] |= Position << 16;                    // double move
                        }
                    }
                    else
                    {
                        Result[i] = 0; // not applicable
                    }
                }
                else     // black
                {
                    if (Address.Rank < 7)
                    {
                        Result[i] = Position >> 8; // single move
                        if (Address.Rank == 6)
                        {
                            Result[i] |= Position >> 16;                    // double move
                        }
                    }
                    else
                    {
                        Result[i] = 0; // not applicable
                    }
                }

                Position <<= 1;
            }

            return(Result);
        }
Ejemplo n.º 4
0
        private static ulong[] PawnCaptures(bool white)
        {
            var   Result   = new ulong[64];
            ulong Position = 1;
            ulong Moves    = 0;
            var   Address  = new BoardAddress(0);

            for (int i = 0; i < 64; i++)
            {
                Address.Index = i;

                if (white)   // white
                {
                    if (Address.Rank > 0)
                    {
                        Moves     = (Position << 7) & ~Masks.FileH;
                        Moves    |= (Position << 9) & ~Masks.FileA;
                        Result[i] = Moves;
                    }
                    else
                    {
                        Result[i] = 0; // not applicable
                    }
                }
                else     // black
                {
                    if (Address.Rank < 7)
                    {
                        Moves     = (Position >> 7) & ~Masks.FileA;
                        Moves    |= (Position >> 9) & ~Masks.FileH;
                        Result[i] = Moves;
                    }
                    else
                    {
                        Result[i] = 0; // not applicable
                    }
                }

                Position <<= 1;
            }
            return(Result);
        }