GameStatus SwitchStatus(Color currentColor)
{
var enemyColor = currentColor == Color.White ? Color.Black : Color.White;
var enemyKingBoardCell = King.FindKing(BoardCells, enemyColor);
var enemyKingCell = new Cell(enemyKingBoardCell.Row, enemyKingBoardCell.Column);
var enemyAcceptableCells = GetAllAcceptableCells(enemyColor);
if (BaseChessman.IsCellUnderShah(BoardCells, enemyKingCell, enemyColor))
{
if (enemyAcceptableCells.Any())
{
return(currentColor == Color.White ? GameStatus.ShahForBlack : GameStatus.ShahForWhite);
}
return(currentColor == Color.White ? GameStatus.WhiteWin : GameStatus.BlackWin);
}
if (!enemyAcceptableCells.Any())
{
return(currentColor == Color.White ? GameStatus.StalemateForBlack : GameStatus.StalemateForWhite);
}
if (AreOnlyKingOnTheBoard())
{
return(GameStatus.Draw);
}
return(currentColor == Color.White ? GameStatus.BlackTurn : GameStatus.WhiteTurn);
}
void MakeCastlingIfPossible(
BaseChessman chessman,
Cell oldPosition,
Cell newPosition)
{
if (chessman.Type != ChessmenType.King || !(chessman is King))
{
return;
}
var isCastling = Math.Abs(oldPosition.Column - newPosition.Column) == 2;
if (!isCastling)
{
return;
}
var isLeftCastling = oldPosition.Column > newPosition.Column;
var oldRookColumn = isLeftCastling ? 0 : 7;
var newRookColumn = isLeftCastling ? 3 : 5;
var rook = new Rook(chessman.Color);
BoardCells[oldPosition.Row, oldRookColumn].Chessman = null;
BoardCells[oldPosition.Row, newRookColumn].Chessman = rook;
}
static void ChangeTypeInCasePawnAndPossible(
ref BaseChessman chessman,
Cell newPosition,
ChessmenType?newType)
{
if (chessman.Type != ChessmenType.Pawn || !((Pawn)chessman).IsLastRow(newPosition.Row))
{
return;
}
if (!newType.HasValue)
{
throw new ArgumentException("New type should be set");
}
if (newType == ChessmenType.Pawn || newType == ChessmenType.King)
{
throw new ArgumentException("New type can not be Pawn or King");
}
chessman = ChessmanFactory.TryToCreateChessman(chessman.Color, newType.Value);
}
static void SetColor(BaseChessman chessman, int row)
{
chessman.Color = IsStartBlackRow(row) ? Color.Black : Color.White;
}
public BoardCell(int row, int column, BaseChessman chessman)
: base(row, column)
{
Chessman = chessman;
}
