public static CastlingInfo FromString(string s)
{
CastlingInfo info = new CastlingInfo();
string[] sArr = s.Split(':');
if (sArr[0].Contains('K'))
{
info.whiteKing = true;
}
if (sArr[0].Contains('Q'))
{
info.whiteQueen = true;
}
if (sArr[0].Contains('k'))
{
info.blackKing = true;
}
if (sArr[0].Contains('q'))
{
info.blackQueen = true;
}
info.whiteLeftRook = BoardPosition.FromString(sArr[1]);
info.whiteRightRook = BoardPosition.FromString(sArr[2]);
info.blackLeftRook = BoardPosition.FromString(sArr[3]);
info.blackRightRook = BoardPosition.FromString(sArr[4]);
return(info);
}
/// <summary>
/// Construct a game state given all of its parameters
/// </summary>
/// <param name="board"></param>
/// <param name="taken"></param>
/// <param name="player"></param>
/// <param name="castling"></param>
/// <param name="enPassant"></param>
/// <param name="halfmoveClock"></param>
/// <param name="fullmoveClock"></param>
/// <param name="gameType"></param>
public GameState(Board board, List <Piece> taken, ChessColors player,
CastlingInfo castling, Nullable <BoardPosition> enPassant,
int halfmoveClock, int fullmoveClock, GameTypes gameType)
{
this.board = board;
this.taken = taken;
this.player = player;
this.castling = castling;
this.enPassant = enPassant;
this.halfmoveClock = halfmoveClock;
this.fullmoveClock = fullmoveClock;
this.gameType = gameType;
}
/// <summary>
/// Construct a game state given only a board
/// </summary>
/// <param name="board">The game board</param>
public GameState(Board board)
{
this.board = board;
this.taken = new List <Piece>();
this.player = ChessColors.White;
this.castling = new CastlingInfo {
whiteKing = true,
whiteQueen = true,
blackKing = true,
blackQueen = true
};
enPassant = null;
gameType = GameTypes.Normal;
}
/// <summary>
/// Convert a string to a game state
/// </summary>
/// <para>
/// The string notation is very close to FEN,
/// but modified to accomidate for skaktego rules.
/// </para>
/// <seealso cref="ToString"/>
public static GameState FromString(string stateStr)
{
string[] splitStr = stateStr.Split(' ');
var boardStr = splitStr[0];
var takenStr = splitStr[1];
var playerStr = splitStr[2];
var castlingStr = splitStr[3];
var enPassantStr = splitStr[4];
var halfmoveStr = splitStr[5];
var fullmoveStr = splitStr[6];
var gameTypeStr = splitStr[7];
// Construct all of the elements of the game state from the
// string parts.
Board board = Board.FromString(boardStr);
List <Piece> taken = new List <Piece>();
if (takenStr != "-")
{
foreach (char pieceChar in takenStr)
{
Piece piece = Piece.FromChar(pieceChar);
taken.Add(piece);
}
}
ChessColors player = ChessColorsMethods.FromChar(playerStr[0]);
CastlingInfo castling = CastlingInfo.FromString(castlingStr);
Nullable <BoardPosition> enPassant = null;
if (enPassantStr != "-")
{
enPassant = BoardPosition.FromString(enPassantStr);
}
int halfmoveClock = int.Parse(halfmoveStr);
int fullmoveClock = int.Parse(fullmoveStr);
GameTypes gameType;
switch (gameTypeStr)
{
case "s":
gameType = GameTypes.Normal;
break;
case "st":
gameType = GameTypes.Skaktego;
break;
case "stp":
gameType = GameTypes.SkaktegoPrep;
break;
default:
throw new ArgumentException("'" + gameTypeStr + "' is not a valid string");
}
return(new GameState(board, taken, player,
castling, enPassant, halfmoveClock,
fullmoveClock, gameType));
}
