public void BeginGame(IUserInput whiteInput, IUserInput blackInput, IUserResponse userResponse)
{
SetUpChessBoard();
var isGameComplete = false;
var beginingTurn = new TurnResult();
beginingTurn.Flags.Add(Flag.GameStart);
userResponse.ReturnMoveInformation(beginingTurn, ChessBoard);
while (!isGameComplete)
{
isGameComplete = WhiteTurn(whiteInput, userResponse);
TurnCounter++;
if (isGameComplete)
{
break;
}
isGameComplete = BlackTurn(blackInput, userResponse);
TurnCounter++;
if (isGameComplete)
{
break;
}
if (TurnCounter == 50 &&
ChessBoard.CapturedBlackPieces.Count == 0 &&
ChessBoard.CapturedWhitePieces.Count == 0)
{
isGameComplete = true;
var result = new TurnResult();
result.Flags.Add(Flag.GameDraw);
userResponse.ReturnMoveInformation(result, ChessBoard);
break;
}
}
}
public TurnResult MovePiece(int oldXCoordinate, int oldYCoordinate, int newXCoordinate, int newYCoordinate, IPiece piece)
{
IPiece pontentiallyCapturedPiece = IsPieceAt(newXCoordinate, newYCoordinate) ? PieceAt(newXCoordinate, newYCoordinate) : null;
var turnResult = new TurnResult()
{
OldXCoordinate = oldXCoordinate,
OldYCoordinate = oldYCoordinate,
NewXCoordinate = newXCoordinate,
NewYCoordinate = newYCoordinate,
PieceMoved = piece
};
if (IsPieceAt(newXCoordinate, newYCoordinate))
{
if (pieces[newXCoordinate, newYCoordinate] is King)
{
turnResult.TurnCompleted = false;
turnResult.ReasonForIncompleteTurn =
"You cannot capture a king.";
return(turnResult);
}
else
{
CapturePiece(newXCoordinate, newYCoordinate);
}
}
MakeMove(piece, newXCoordinate, newYCoordinate, oldXCoordinate, oldYCoordinate);
if (!(piece is King))
{
var ownKing = GetOwnKing(piece.PieceColor);
if (!IsPositionSafeForKing(ownKing, ownKing.XCoordinate, ownKing.YCoordinate))
{
turnResult.TurnCompleted = false;
turnResult.ReasonForIncompleteTurn =
"Your king is still in check.";
UndoMove(piece, pontentiallyCapturedPiece, newXCoordinate, newYCoordinate, oldXCoordinate, oldYCoordinate);
return(turnResult);
}
}
var otherKing = GetOpponentKing(piece.PieceColor);
if (!IsPositionSafeForKing(otherKing, otherKing.XCoordinate, otherKing.YCoordinate))
{
otherKing.IsInCheck = true;
}
if (otherKing.IsInCheckMate())
{
turnResult.Flags.Add(Flag.CheckMate);
}
if (otherKing.IsInStaleMate() && !IsAnyAlliesLeft(otherKing.PieceColor))
{
turnResult.Flags.Add(Flag.StaleMate);
}
ClearEnemyPawnDoubleSteps(piece.PieceColor);
piece.HasMoved = true;
turnResult.TurnCompleted = true;
turnResult.ReasonForIncompleteTurn = "";
return(turnResult);
}
