/// <summary>
/// Update teh booleans of this class
/// </summary>
/// <param name="m">Move to take cues from</param>
public void UpdateCastlingStatus(Move m)
{
if (this[m.From]._Color == PlayerColor.White)
{
if (m.From == _WhiteKing)
{
_WhiteCanCastleShort = false;
_WhiteCanCastleLong = false;
}
if (m.From == _WhiteRookShort)
_WhiteCanCastleShort = false;
if (m.From == _WhiteRookLong)
_WhiteCanCastleLong = false;
}
else
{
if (m.From == _BlackKing)
{
_BlackCanCastleShort = false;
_BlackCanCastleLong = false;
}
if (m.From == _BlackRookShort)
_BlackCanCastleShort = false;
if (m.From == _BlackRookLong)
_BlackCanCastleLong = false;
}
}
/// <summary>
/// Read method to be executed by threads
/// </summary>
public void Read()
{
string Line = "";
while (true)
{
// read line, write some debug output
Line = _ChessStreamReader.ReadLine();
Console.WriteLine("ChessProtocol.Read(" + Line + ")");
// split line
char[] Delimiter = { ' ' };
string[] Params = Line.Split(Delimiter);
// handle command
switch (Params[0])
{
case "move":
{
string Promotion = null;
if (Params.Length == 4)
Promotion = Params[3];
Move m = new Move(Params[1], Params[2], Promotion);
_ChessGame.PeerMove(m);
break;
}
case "stalemate":
{
MessageBox.Show("Stalemate!", "Stalemate! Did you feel lucky?");
_ChessGame.Dispose();
break;
}
case "check_mate":
{
MessageBox.Show("Checkmate!", "Checkmate! Did you feel lucky?");
_ChessGame.Dispose();
break;
}
case "message":
{
MessageBox.Show(Params[1] + ": " + Line.Substring(Line.IndexOf(Params[2])), "Message from user " + Params[1]);
break;
}
case "surrender":
{
MessageBox.Show("You have won!", "Remote user surrendered");
_ChessGame.Dispose();
break;
}
case "endgame":
{
MessageBox.Show("You have won!", "Remote user ended the game");
_ChessGame.Dispose();
break;
}
case "offer_draw":
{
DialogResult dr = MessageBox.Show("You are offered a draw, do you accept?", "Draw offer", MessageBoxButtons.YesNo);
if (dr == DialogResult.Yes)
{
DrawOk();
_ChessGame.Dispose();
}
else
DrawDeny();
break;
}
case "draw_ok":
{
MessageBox.Show("Draw accepted", "Your draw offer has been accepted");
_ChessGame.Dispose();
break;
}
case "draw_deny":
{
MessageBox.Show("Draw rejected", "Your draw offer has been rejected");
break;
}
}
}
}
/// <summary>
/// Undo a move. Sherlock says: "This may require that the move was previously applied."
/// </summary>
/// <param name="m">The move</param>
public void UndoMove(Move m)
{
this[m.From] = this[m.To];
this[m.To] = m.Capture;
}
/// <summary>
/// If the move is a castling move, find the tower and move it too
/// </summary>
/// <param name="m">The move</param>
public void DoCastling(Move m)
{
if (this[m.From].Type == PieceType.King)
{
int XDelta, YDelta;
int XDir, YDir;
m.AbsDelta(out XDelta, out YDelta);
m.Direction(out XDir, out YDir);
if (XDelta == 2 && YDelta == 0) // is a good castling move
{
int TowerColumn = (XDir == 1 ? 7 : (XDir == -1 ? 0 : 666));
Move TowerMove = new Move(TowerColumn, m.From.Y, m.To.X - XDir, m.From.Y, "");
ApplyMove(TowerMove);
}
}
}
/// <summary>
/// Apply a move to the board
/// </summary>
/// <param name="m">Move to execute</param>
public void ApplyMove(Move m)
{
m.Capture = this[m.To];
this[m.To] = this[m.From];
this[m.From] = null;
}
/// <summary>
/// Do a move that was initiated by the user
/// </summary>
/// <param name="FromX">X coordinate</param>
/// <param name="FromY">Y coordinate</param>
/// <param name="ToX">X coordinate</param>
/// <param name="ToY">Y coordinate</param>
public void UserMove(int FromX, int FromY, int ToX, int ToY)
{
Move m = new Move(FromX, FromY, ToX, ToY, "");
if (_MoveChecker.IsLegalMove(m))
{
HistoryDelegate hd = new HistoryDelegate(_ChessInterface.AddToHistory);
_Board.DoCastling(m);
_Board.UpdateCastlingStatus(m);
_Board.ApplyMove(m);
_ChessProtocol.SendMove(m.ToString());
string Line = "You: " + Coordinate.IndexToChess(FromX, FromY) + " > " + Coordinate.IndexToChess(ToX, ToY);
ChangeColor();
_ChessInterface.Invoke(hd, new object[] { Line });
_ChessInterface.DrawPieces();
}
//else
// throw new ChessException("Illegal move!");
}
/// <summary>
/// Execute a move that was initiated by a peer
/// </summary>
/// <param name="m">Remote opponent sends a move</param>
public void PeerMove(Move m)
{
HistoryDelegate hd = new HistoryDelegate(_ChessInterface.AddToHistory);
string Line = "Opponent: " + Coordinate.IndexToChess(m.From.X, m.From.Y) + " > " + Coordinate.IndexToChess(m.To.X, m.To.Y);
_Board.DoCastling(m);
_Board.UpdateCastlingStatus(m);
_Board.ApplyMove(m);
ChangeColor();
_ChessInterface.Invoke(hd, new object[] { Line });
_ChessInterface.DrawPieces();
}