/// <summary>
/// Check if any other teammates can block the checking path to protect the king
/// </summary>
/// <returns><c>true</c>, if for any cells in the checking path, there is a
/// teammate which can move to that cell to protect the king,
/// <c>false</c> otherwise.
/// </returns>
/// <param name="opponent">opponent player.</param>
/// <param name="b">game board.</param>
public bool CanBlockMate(Player opponent, Board b)
{
//if checking piece is a Pawn, or King, or Knight, return false
if (_pieceChecking.GetType() == typeof(Knight) || _pieceChecking.GetType() == typeof(Pawn) || _pieceChecking.GetType() == typeof(King))
{
return(false);
}
foreach (Cell c in CheckingPath(opponent))
{
Piece tempPiece = c.Piece;
foreach (Piece p in opponent.Opponent.Pieces)
{
//if the piece mentioned is not the King and the cell in the checking path is
//a possible move of that piece
if (p.GetType() != typeof(King) && c.isPossibleMoveOf(p, b))
{
Cell temp = p.Cell;
//if the cell in the checking path is not holding any piece
if (c.Piece == null)
{
p.Cell.RemovePiece(opponent.Opponent);
c.Piece = p;
if (!isChecked(opponent, b))
{
c.RemovePiece(opponent.Opponent);
temp.Piece = p;
return(true);
}
c.RemovePiece(opponent.Opponent);
temp.Piece = p;
}
else
{
tempPiece.Cell.RemovePiece(opponent);
p.Cell.RemovePiece(opponent.Opponent);
c.Piece = p;
if (!isChecked(opponent, b, tempPiece))
{
c.RemovePiece(opponent.Opponent);
c.Piece = tempPiece;
temp.Piece = p;
return(true);
}
c.RemovePiece(opponent.Opponent);
c.Piece = tempPiece;
temp.Piece = p;
}
}
}
}
return(false);
}
/// <summary>
/// Key of the dictionary
/// </summary>
/// <returns>The string representation of a piece</returns>
/// <param name="p">the Piece</param>
public string Key(Piece p)
{
foreach (string s in _pieceRegistry.Keys)
{
if (_pieceRegistry [s] == p.GetType())
{
return(s);
}
}
return(null);
}
/// <summary>
/// Converts the piece to string representation.
/// </summary>
/// <returns>string representation of a piece</returns>
/// <param name="p">The Piece</param>
public string ConvertPieceToString(Piece p)
{
Dictionary <Type, string> pieceEquivalent = new Dictionary <Type, string> ();
pieceEquivalent.Add(typeof(Pawn), "Pawn");
pieceEquivalent.Add(typeof(Rook), "Rook");
pieceEquivalent.Add(typeof(Knight), "Knight");
pieceEquivalent.Add(typeof(Bishop), "Bishop");
pieceEquivalent.Add(typeof(Queen), "Queen");
pieceEquivalent.Add(typeof(King), "King");
return(pieceEquivalent [p.GetType()]);
}
