C# Board.Move方法代码示例

        public void TestCastlingNoKingsideWhite()
        {
            var b = new Board(false);
            b.State[0] = Colors.Val(Piece.Rook, Color.White);
            b.State[7] = Colors.Val(Piece.Rook, Color.White);
            b.State[4] = Colors.Val(Piece.King, Color.White);

            b.State[56] = Colors.Val(Piece.Rook, Color.Black);
            b.State[63] = Colors.Val(Piece.Rook, Color.Black);
            b.State[60] = Colors.Val(Piece.King, Color.Black);

            b.AllowCastlingAll();

            b.PlayerTurn = Color.White;
            b.Move(7, 6);

            Assert.IsTrue(b.CanCastleKBlack);
            Assert.IsFalse(b.CanCastleKWhite);
            Assert.IsTrue(b.CanCastleQBlack);
            Assert.IsTrue(b.CanCastleQWhite);

            // test that we can't just move back
            b.PlayerTurn = Color.White;
            b.Move(6, 7);

            Assert.IsTrue(b.CanCastleKBlack);
            Assert.IsFalse(b.CanCastleKWhite);
            Assert.IsTrue(b.CanCastleQBlack);
            Assert.IsTrue(b.CanCastleQWhite);
        }

        public void TestFEN2()
        {
            var b1 = new Board(true);
            b1.Move(12, 12 + 16);
            b1.Move(50, 50 - 16);
            b1.Move(12+16, 12 + 16 + 8);

            var str = "rnbqkbnr/pp1ppppp/8/2p1P3/8/8/PPPP1PPP/RNBQKBNR b KQkq";
            var b2 = Notation.ReadFEN(str);

            bool equal = b1.State.SequenceEqual(b2.State);
            Assert.IsTrue(equal);
        }

        public void TestCastleBlackKingsideRookMoved()
        {
            var b = new Board();
            b.InitBoard();
            b.State[61] = 0;
            b.State[62] = 0;
            b.PlayerTurn = Color.Black;
            bool ok = b.Move(63, 62);
            Assert.IsTrue(ok);
            b.PlayerTurn = Color.Black;
            b.Move(62, 63);
            Assert.IsTrue(ok);

            Assert.IsFalse(b.CanCastleKBlack);

            var moves = Moves.GetValidMoves(b, 60);
            Assert.AreEqual(1, moves.Length);
            Assert.IsTrue(moves.Contains(61));
        }

        public void Element_Can_Be_Moved()
        {
            var testElement = new TestBoardElement();
            var board = new Board(10, 20);
            Point position = new Point(5, 12);
            board.AddElement(testElement, position);

            board.Move(testElement, Board.Direction.North);

            var expectedNewPosition = new Point(position.X - 1, position.Y);
            Assert.IsFalse(board.Contents(position).Contains(testElement));
            Assert.IsTrue(board.Contents(expectedNewPosition).Contains(testElement));
        }

        public void TestIsCaptureMoveEnPassant()
        {
            var b = new Board();
            b.PlayerTurn = Color.Black;

            int posWhite = Notation.TextToTile("e5");
            int posBlack = Notation.TextToTile("d7");

            b.State[posWhite] = Colors.Val(Piece.Pawn, Color.White);
            b.State[posBlack] = Colors.Val(Piece.Pawn, Color.Black);

            b.Move(posBlack, posBlack - 16);

            bool capture = Moves.IsCaptureMove(b, posWhite, posWhite + 7);
            Assert.IsTrue(capture);
        }

        public void TestABN2()
        {
            // Tests knights and bishops moving
            var board = new Board(true);
            string data = "1.e4 Nf6 2.Nc3 c6 3.Bc4 d5 ";
            var game = new PGNParser().ParseGame(data);
            var moves = game.GetMainVariation();
            foreach (var move in moves)
            {
                board.Move(move.From, move.To, true);
            }

            var board2 = Notation.ReadFEN("rnbqkb1r/pp2pppp/2p2n2/3p4/2B1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq");

            Assert.IsTrue(board2.State.SequenceEqual(board.State));
            Assert.AreEqual(Color.White, board.PlayerTurn);
        }

        public void TestABN4()
        {
            // Tests castling both kingside
            var board = new Board(true);
            string data = "1.e4 e5 2.Bd3 Bd6 3.Nf3 Nf6 4.O-O O-O ";
            var game = new PGNParser().ParseGame(data);
            var moves = game.GetMainVariation();
            foreach (var move in moves)
            {
                board.Move(move.From, move.To, true);
            }

            var board2 = Notation.ReadFEN("rnbq1rk1/pppp1ppp/3b1n2/4p3/4P3/3B1N2/PPPP1PPP/RNBQ1RK1 w -");

            Assert.IsTrue(board2.State.SequenceEqual(board.State));
            Assert.AreEqual(Color.White, board.PlayerTurn);
        }

        public void TestZobrist1()
        {
            var b = new Board(true);
            var zob = Zobrist.Calculate(b);

            b.Move(9, 25);
            var zob2 = Zobrist.Calculate(b);

            ulong expected = zob;
            expected = expected ^ Zobrist.Key.Piece(Color.White, Piece.Pawn, 9);
            expected = expected ^ Zobrist.Key.Piece(Color.White, Piece.Pawn, 25);
            expected = expected ^ Zobrist.Key.PlayerTurn(Color.White);
            expected = expected ^ Zobrist.Key.PlayerTurn(Color.Black);
            expected = expected ^ Zobrist.Key.EnPassant(b.EnPassantTile);

            Assert.AreEqual(expected, zob2);
        }

        public void TestEnPassantVictimWhiteRight()
        {
            var b = new Board();
            b.PlayerTurn = Color.Black;

            int posWhite = Notation.TextToTile("e5");
            int posBlack = Notation.TextToTile("f7");

            b.State[posWhite] = Colors.Val(Piece.Pawn, Color.White);
            b.State[posBlack] = Colors.Val(Piece.Pawn, Color.Black);

            b.Move(posBlack, posBlack - 16);

            bool isEnPassant = Moves.IsEnPassantCapture(b, posWhite, posWhite + 9);
            Assert.IsTrue(isEnPassant);

            int target = Moves.EnPassantVictim(b, posWhite, posWhite + 9);
            Assert.AreEqual(target, posBlack - 16);
        }

        public void TestABNFullgame2()
        {
            // end results
            var board = new Board(true);
            string data = "1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Nc6 7.O-O Be7 8.c4 Nb4 9.Be2 O-O 10.Nc3 Bf5 11.a3 Nxc3 12.bxc3 Nc6 13.Re1 Re8 14.Bf4 dxc4 15.Bxc4 Bd6 16.Rxe8+ Qxe8 17.Ng5 Bg6 18.Bxd6 cxd6 19.h4 Qe7 20.Qg4 h6 21.Nf3 Qe4 22.Qg3 Rd8 23.Re1 Qf5 24.Ba2 Qf6 25.Nh2 Qf5 26.Ng4 Kf8 27.Bb1 Qh5 28.Qf4 Bxb1 29.Rxb1 Rd7 30.Ne3 Ne7 31.g3 Nd5 32.Nxd5 Qxd5 33.Re1 Re7 34.Rxe7 Kxe7 35.Qe3+ Qe6 1/2";

            var game = new PGNParser().ParseGame(data);
            var moves = game.GetMainVariation();

            foreach (var move in moves)
            {
                board.Move(move.From, move.To, true);
                if (move.Promotion != 0)
                {
                    bool promoted = board.Promote(move.To, move.Promotion);
                    Assert.IsTrue(promoted);
                }
            }

            var board2 = Notation.ReadFEN("8/pp2kpp1/3pq2p/8/3P3P/P1P1Q1P1/5P2/6K1 w - - 0 36");

            Assert.IsTrue(board2.State.SequenceEqual(board.State));
        }

        public void TestCastleWhiteQueensideRookMoved()
        {
            var b = new Board();
            b.InitBoard();
            b.State[3] = 0;
            b.State[2] = 0;
            b.State[1] = 0;
            bool ok = b.Move(0, 1);
            Assert.IsTrue(ok);
            b.PlayerTurn = Color.White;
            ok = b.Move(1, 0);
            Assert.IsTrue(ok);

            Assert.IsFalse(b.CanCastleQWhite);

            var moves = Moves.GetValidMoves(b, 4);
            Assert.AreEqual(1, moves.Length);
            Assert.IsTrue(moves.Contains(3));
        }

        public void TestCastleWhiteKingsideRookMoved()
        {
            var b = new Board();
            b.InitBoard();
            b.State[5] = 0;
            b.State[6] = 0;

            bool ok = b.Move(7, 6);
            Assert.IsTrue(ok);
            b.PlayerTurn = Color.White;
            ok = b.Move(6, 7);
            Assert.IsTrue(ok);

            Assert.IsFalse(b.CanCastleKWhite);

            var moves = Moves.GetValidMoves(b, 4);
            Assert.AreEqual(1, moves.Length);
            Assert.IsTrue(moves.Contains(5));
        }

 static bool NextBoard(Board board)
 {
     // 終了判定
     if (board.CheckEndPattern()) {
         return true;
     } else {
         for (int i = 0; i < board.Pieces.Count(); i++) {
             foreach (Direction d in new Direction[] { Direction.UP, Direction.DOWN, Direction.RIGHT, Direction.LEFT }) {
                 Board[] nextList = board.Move(i, d);
                 foreach (Board next in nextList) {
                     if (next != null && !Checked.Contains(next)) {
                         BoardQueue.Enqueue(next);
                         Checked.Add(next);
                     }
                 }
             }
         }
     }
     return false;
 }

        // perform opponents next move on the board
        private static bool OpponentMove(Board board, bool preComputeMyMove = true)
        {
            // if opponent can't move, i win!
            if (!board.GetOpponentValidMoves().Any())
            {
                return false;
            }

            // start evaluation for my next move on a bunch of new threads

            if (preComputeMyMove)
            {
                Searcher.I.PreComputeNextMove(board);
            }

            // ask for move
            var move = GetOpponentMove();

            // ensure it is valid
            if (!board.GetValidMoves().Any(x => x.Equals(move)))
            {
                Console.WriteLine("Not a valid opponent move! Was it entered correctly? (y/n):");

                // if opponent enters invalid move, they forfeit
                if ("y".Equals(Console.ReadLine(), StringComparison.OrdinalIgnoreCase))
                {
                    return false;
                }

                // otherwise it was a mistake, so let's try again
                return OpponentMove(board, false);
            }

            // confirm move is correct, which is equivalent to rollback functionality
            // a rollback would simply mean asking this question after performing the move instead of before
            Console.WriteLine("Are you sure? 'undo' to rollback, anything else to continue.");
            if ("undo".Equals(Console.ReadLine(), StringComparison.OrdinalIgnoreCase))
            {
                return OpponentMove(board, false);
            }

            // now that we know it's valid, and we've asked if they want to undo, perform move
            board.Move(move);
            return true;
        }

        public void TestEnPassantLeft()
        {
            var b = new Board();
            b.PlayerTurn = Color.Black;

            int posWhite = Notation.TextToTile("e5");
            int posBlack = Notation.TextToTile("d7");

            b.State[posWhite] = Colors.Val(Piece.Pawn, Color.White);
            b.State[posBlack] = Colors.Val(Piece.Pawn, Color.Black);

            b.Move(posBlack, posBlack - 16);

            var moves = Attacks.GetAttacks(b, posWhite);
            Assert.AreEqual(3, moves.Length);
            Assert.IsTrue(moves.Contains(Notation.TextToTile("d5")));
        }