|
public ApplyMove ( |
||
| move | ||
| alreadyValidated | bool | |
| return | MoveType | |
public bool WouldBeInCheckAfter(Move move, Player player)
{
ChessUtilities.ThrowIfNull(move, nameof(move));
var gcd = new GameCreationData();
gcd.Board = Board;
gcd.CanWhiteCastleKingSide = !_whiteRookHMoved && !_whiteKingMoved;
gcd.CanWhiteCastleQueenSide = !_whiteRookAMoved && !_whiteKingMoved;
gcd.CanBlackCastleKingSide = !_blackRookHMoved && !_blackKingMoved;
gcd.CanBlackCastleQueenSide = !_blackRookAMoved && !_blackKingMoved;
gcd.EnPassant = null;
if (_moves.Count > 0)
{
var last = _moves.Last();
if (last.Piece is Pawn && new SquareDistance(last.OriginalPosition, last.NewPosition).DistanceY == 2)
{
gcd.EnPassant = new Square(last.NewPosition.File, last.Player == Player.White ? 3 : 6);
}
}
gcd.HalfMoveClock = _halfMoveClock;
gcd.FullMoveNumber = _fullMoveNumber;
var copy = new ChessGame(gcd);
copy.ApplyMove(move, true);
var status = copy.CalculateStatus(player, false);
return(status.Event == GameEvent.Check && status.PlayerWhoCausedEvent != player);
}
public virtual bool WouldBeInCheckAfter(Move move, ChessPlayer player)
{
ChessUtility.ThrowIfNull(move, "move");
GameCreationData gcd = new GameCreationData
{
Board = Board,
CanWhiteCastleKingSide = CanWhiteCastleKingSide,
CanWhiteCastleQueenSide = CanWhiteCastleQueenSide,
CanBlackCastleKingSide = CanBlackCastleKingSide,
CanBlackCastleQueenSide = CanBlackCastleQueenSide,
EnPassant = null
};
if (_moves.Count > 0)
{
DetailedMove last = _moves.Last();
if (last.Piece is Pawn && new BoardDistance(last.OriginalPosition, last.NewPosition).Y == 2)
{
gcd.EnPassant = new BoardPosition(last.NewPosition.File, last.Player == ChessPlayer.White ? 3 : 6);
}
}
gcd.HalfMoveClock = _halfMoveClock;
gcd.FullMoveNumber = _fullMoveNumber;
ChessGame copy = new ChessGame(gcd);
copy.ApplyMove(move, true);
return(copy.IsInCheck(player));
}
protected virtual bool WouldBeInCheckAfter(Move move, Player player)
{
Utilities.ThrowIfNull(move, "move");
ChessGame copy = new ChessGame(Board, player, false);
copy.ApplyMove(move, true, false);
GameStatus status = copy.CalculateStatus(player, false);
return(status.Event == GameEvent.Check && status.PlayerWhoCausedEvent != player);
}
static void Main(string[] args)
{
// Let's start by creating a chess game instance.
ChessGame game = new ChessGame();
// Now the game's board is in the start position and it's white's turn.
Console.WriteLine("It's this color's turn: {0}", game.WhoseTurn);
// This is how to find out which piece is at a certain position:
Piece pieceAtA1 = game.GetPieceAt(new Position("A1")); // Or "a1", the casing doesn't matter
/* There are other overloading options as well:
* game.GetPieceAt(new Position(File.A, 1));
* game.GetPieceAt(File.A, 1);
* All those three options return the same. */
Console.WriteLine("What piece is there at A1? {0}", pieceAtA1.GetFenCharacter());
// GetFenCharacter() returns the FEN character for the given piece. White piece: uppercase, black piece: lowercase. The character is the first char of a piece's name (exception: Knight -> N/n because King -> K/k).
// The Piece class is the abstract base class for pieces. All piece classes (e.g. Rook) derive from this class.
// White has to make a turn. They want to move their E2 pawn to E4. Is that valid?
Move e2e4 = new Move("E2", "E4", Player.White);
bool isValid = game.IsValidMove(e2e4);
Console.WriteLine("E2-E4 for white is valid: {0}", isValid);
// Great, it's valid! So white wants to actually make that move.
MoveType type = game.ApplyMove(e2e4, true);
// The first argument is the move, the second argument indicates whether it's already validated. Here it is, so pass 'true'. If it's not validated yet, ApplyMove will do it. **Only pass `true` if it's really validated! If you pass `true`, ApplyMove won't do ANY validity checks.**
// The return type is the MoveType enum. It holds one, or a combination, of these values: Invalid, Move, Capture, Castling, Promotion
// Each valid move will always carry the 'Move' value. If it's also something else, it will carry both values (e.g. if the move is a capture, `type` will have the value MoveType.Move | MoveType.Capture).
// MoveType is a flags enumeration. https://msdn.microsoft.com/en-us/library/ms229062%28v=vs.100%29.aspx
// e4 is just a normal move, so `type` will just be MoveType.Move.
Console.WriteLine("Move type: {0}", type);
// When a move has been made, check the Status property. It will let you know if there is a special event: check, checkmate, stalemate ...
GameStatus status = game.Status;
Console.WriteLine("Special event? {0}", status.Event);
// Here it just returns 'None' because nothing special happened.
// GameStatus has two other properties: PlayerWhoCausedEvent (quite self-explanatory) and EventExplanation (used if Chess.NET needs to be more specific about an event, e.g. when it's a draw, explaining why).
// Now it's black's turn.
Console.WriteLine("It's this color's turn: {0}", game.WhoseTurn);
// You can figure out all valid moves using GetValidMoves.
IEnumerable<Move> validMoves = game.GetValidMoves(Player.Black);
// Here it returns all valid moves for black, but you can also find all valid moves *from a certain position* by passing a Position instance as argument.
Console.WriteLine("How many valid moves does black have? {0}", validMoves.Count());
// It might happen that you don't really care about all valid moves, but just want to know if there are valid moves. Chess.NET also has a method for that:
bool hasValidMoves = game.HasAnyValidMoves(Player.Black);
// Again, you can also pass a Position instance here.
Console.WriteLine("Black has any valid moves: {0}", hasValidMoves);
// Congratulations! You have learned about the most important methods of Chess.NET. Enjoy using the library :)
Console.ReadKey();
}
protected virtual bool WouldBeInCheckAfter(Move move, Player player)
{
Utilities.ThrowIfNull(move, "move");
ChessGame copy = new ChessGame(Board, player, false);
copy.ApplyMove(move, true, false);
GameStatus status = copy.CalculateStatus(player, false);
return status.Event == GameEvent.Check && status.PlayerWhoCausedEvent != player;
}
public virtual bool WouldBeInCheckAfter(Move move, Player player)
{
ChessUtilities.ThrowIfNull(move, "move");
GameCreationData gcd = new GameCreationData();
gcd.Board = Board;
gcd.CanWhiteCastleKingSide = CanWhiteCastleKingSide;
gcd.CanWhiteCastleQueenSide = CanWhiteCastleQueenSide;
gcd.CanBlackCastleKingSide = CanBlackCastleKingSide;
gcd.CanBlackCastleQueenSide = CanBlackCastleQueenSide;
gcd.EnPassant = null;
if (_moves.Count > 0)
{
DetailedMove last = _moves.Last();
if (last.Piece is Pawn && new PositionDistance(last.OriginalPosition, last.NewPosition).DistanceY == 2)
{
gcd.EnPassant = new Position(last.NewPosition.File, last.Player == Player.White ? 3 : 6);
}
}
gcd.HalfMoveClock = _halfMoveClock;
gcd.FullMoveNumber = _fullMoveNumber;
ChessGame copy = new ChessGame(gcd);
copy.ApplyMove(move, true);
return copy.IsInCheck(player);
}
