public static string GetString(ChessRank rank, ChessOwner player, ChessIconFormat format = ChessIconFormat.Text)
{
bool isBlack = player == ChessOwner.Black;
bool isEmote = format == ChessIconFormat.Emote;
string text = rank switch
{
ChessRank.Pawn when isEmote => isBlack ? "♙" : "♟",
ChessRank.Pawn => "P",
ChessRank.Knight when isEmote => isBlack ? "♘" : "♞",
ChessRank.Knight => "N",
ChessRank.Bishop when isEmote => isBlack ? "♗" : "♝",
ChessRank.Bishop => "B",
ChessRank.Rook when isEmote => isBlack ? "♖" : "♜",
ChessRank.Rook => "R",
ChessRank.Queen when isEmote => isBlack ? "♕" : "♛",
ChessRank.Queen => "Q",
ChessRank.King when isEmote => isBlack ? "♔" : "♚",
ChessRank.King => "K",
_ => throw new ArgumentException("Unknown rank")
};
if (isBlack && !isEmote)
{
text = text.ToLower();
}
return(text);
}
public static bool TryParse(string input, out ChessRank piece)
{
piece = 0;
if (input.EqualsAny(StringComparison.OrdinalIgnoreCase, "p", "pawn"))
{
piece = ChessRank.Pawn;
return(true);
}
if (input.EqualsAny(StringComparison.OrdinalIgnoreCase, "n", "knight"))
{
piece = ChessRank.Knight;
return(true);
}
if (input.EqualsAny(StringComparison.OrdinalIgnoreCase, "b", "bishop"))
{
piece = ChessRank.Bishop;
return(true);
}
if (input.EqualsAny(StringComparison.OrdinalIgnoreCase, "r", "rook"))
{
piece = ChessRank.Rook;
return(true);
}
if (input.EqualsAny(StringComparison.OrdinalIgnoreCase, "q", "queen"))
{
piece = ChessRank.Queen;
return(true);
}
if (input.EqualsAny(StringComparison.OrdinalIgnoreCase, "k", "king"))
{
piece = ChessRank.King;
return(true);
}
return(false);
}
// 0 to 7
// file = y
// rank = x
private List <Coordinate> GetBaseMoves(ChessOwner owner, ChessRank piece, int rank, int file)
{
var moves = new List <Coordinate>();
switch (piece)
{
case ChessRank.King:
moves.AddRange(new List <Coordinate>
{
new Coordinate(rank + 1, file),
new Coordinate(rank - 1, file),
new Coordinate(rank, file + 1),
new Coordinate(rank, file - 1),
new Coordinate(rank + 1, file + 1),
new Coordinate(rank - 1, file + 1),
new Coordinate(rank + 1, file - 1),
new Coordinate(rank - 1, file - 1)
});
break;
case ChessRank.Knight:
moves.AddRange(new List <Coordinate>
{
new Coordinate(rank + 1, file - 2),
new Coordinate(rank - 1, file - 2),
new Coordinate(rank + 1, file + 2),
new Coordinate(rank - 1, file + 2),
new Coordinate(rank + 2, file - 1),
new Coordinate(rank - 2, file - 1),
new Coordinate(rank + 2, file + 1),
new Coordinate(rank - 2, file + 1)
});
break;
case ChessRank.Rook:
MoveWest(ref moves, rank, file);
MoveEast(ref moves, rank, file);
MoveNorth(ref moves, rank, file);
MoveSouth(ref moves, rank, file);
break;
case ChessRank.Bishop:
MoveNorthWest(ref moves, rank, file);
MoveNorthEast(ref moves, rank, file);
MoveSouthWest(ref moves, rank, file);
MoveSouthEast(ref moves, rank, file);
break;
case ChessRank.Queen:
MoveWest(ref moves, rank, file);
MoveEast(ref moves, rank, file);
MoveNorth(ref moves, rank, file);
MoveSouth(ref moves, rank, file);
MoveNorthWest(ref moves, rank, file);
MoveNorthEast(ref moves, rank, file);
MoveSouthWest(ref moves, rank, file);
MoveSouthEast(ref moves, rank, file);
break;
case ChessRank.Pawn:
if (owner == ChessOwner.Black)
{
moves.Add(new Coordinate(rank, file + 1));
if (file == 1)
{
moves.Add(new Coordinate(rank, file + 2));
}
}
else
{
moves.Add(new Coordinate(rank, file - 1));
if (file == 6)
{
moves.Add(new Coordinate(rank, file - 2));
}
}
break;
}
return(moves.Where(Exclude).ToList());
}
/// <summary>
/// Returns an instance of this class initialized with the coordinates of the square.
/// </summary>
/// <param name="file"></param>
/// <param name="rank"></param>
public ChessSquare(ChessFile file, ChessRank rank)
{
this.File = file;
this.Rank = rank;
}