public void Add(ChessPiece piece, int xCoordinate, int yCoordinate)
{
Console.WriteLine("Attempting to Add() to ({0}, {1})...", xCoordinate, yCoordinate);
if (!IsLegalBoardPosition(xCoordinate, yCoordinate))
{
piece.XCoordinate = -1;
piece.YCoordinate = -1;
throw new InvalidPositioningException("({0}, {1}) is not a valid position. Chessboard cannot Add() an invalid position.");
}
if (!IsPieceAvailable(piece))
{
piece.XCoordinate = -1;
piece.YCoordinate = -1;
throw new UnavailablePieceException(string.Format("The following Piece type could not be added as it is unavailabe: {0} {1}", piece.StrColor, piece.StrType));
}
object space = pieces[xCoordinate, yCoordinate];
if (space is ChessPiece)
{
// Space is taken
piece.XCoordinate = -1;
piece.YCoordinate = -1;
throw new DuplicatePositioningException("Position ({0},{1}) is already taken. Cannot Add a piece to a duplicate position.");
}
else
{
// Space is available
Console.WriteLine("({0}, {1}) is available", xCoordinate, yCoordinate);
piece.XCoordinate = xCoordinate;
piece.YCoordinate = yCoordinate;
pieces[xCoordinate, yCoordinate] = piece;
AvailablePieces.PossiblePieces colorPieceCounts = (AvailablePieces.PossiblePieces)pieceCounts[piece.StrColor];
int currCount;
try
{
currCount = (int)colorPieceCounts[piece.StrType];
}
catch (NullReferenceException)
{
throw new ArgumentException("Cannot determine availability of an unrecognized pieceType. Got: {0}", piece.StrType);
}
Console.WriteLine("Available {1} {2} before: {0}", currCount, piece.StrColor, piece.StrType);
colorPieceCounts[piece.StrType] = --currCount;
Console.WriteLine("Available {1} {2} after: {0}", currCount, piece.StrColor, piece.StrType);
}
}
public bool IsPieceAvailable(ChessPiece piece)
{
Console.WriteLine("Checking availability of {0} {1}s...", piece.StrColor, piece.StrType);
AvailablePieces.PossiblePieces colorPieceCounts = (AvailablePieces.PossiblePieces)pieceCounts[piece.StrColor];
int currCount;
try
{
currCount = (int)colorPieceCounts[piece.StrType];
Console.WriteLine("currCount {0}", currCount);
}
catch (NullReferenceException)
{
throw new ArgumentException("Cannot determine availability of an unrecognized pieceType. Got: {0}", piece.StrType);
}
if (currCount > 0)
{
return(true);
}
else
{
return(false);
}
}