public GameOver IsCheckMate()
{
var king = board.GetKingByColor(Color);
var enemyPiece = board.IsKingChecked(Color);
var moves = board.CalcPossibleMoves(king);
if (enemyPiece != null)
{
var enemyPieces = board.GetAllPiecesByColor(Color).Where(x => !(x is King));
//Can be blocked?
foreach (var piece in enemyPieces)
{
var pieceMoves = king.Point.AllMovesWithinDirection(enemyPiece.Point, king.ChooseRightDirection(enemyPiece.Point));
foreach (var end in pieceMoves)
{
var square = board.Squares.FirstOrDefault(x => x.Point.Equals(end));
if (piece.CanMoveWithoutColliding(square, board))
{
return(GameOver.None);
}
}
}
//Can be moved?
if (moves.Count != 0)
{
return(GameOver.None);
}
return(GameOver.Checkmate);
}
else
{
foreach (var piece in board.GetAllPiecesByColor(Color))
{
if (board.CalcPossibleMoves(piece).Count != 0)
{
return(GameOver.None);
}
}
return(GameOver.Stalemate);
}
}
