/// <summary>Used for debugging on server.</summary>
public bool printOnServer()
{
try {
string toSend = "PRINT";
socket.getOut().WriteLine(toSend);
socket.getOut().Flush();
return(true);
} catch (Exception e) {
ChessActivity.OnServerFail();
return(false);
}
}
/// <summary>Posts a message to chat room.</summary>
public bool postToChat(string message)
{
try {
string toSend = message;
socket.getOut().WriteLine(toSend);
socket.getOut().Flush();
return(true);
} catch (Exception e) {
ChessActivity.OnServerFail();
return(false);
}
}
/// <summary>Returns string of all last chat messages.</summary>
public string getLastChat()
{
try {
string toSend = "GET";
socket.getOut().WriteLine(toSend);
socket.getOut().Flush();
// then recieve from socket
return("");
} catch (Exception e) {
ChessActivity.OnServerFail();
return("");
}
}
/// <summary>Log in to the server.</summary>
public bool login()
{
try {
string toSend = "LOGIN " + username;
socket.getOut().WriteLine(toSend);
socket.getOut().Flush();
return(true);
} catch (Exception e) {
ChessActivity.OnServerFail();
return(false);
}
}
/// <summary>Joins an existing game. (you will be player 2)</summary>
public bool joinGame()
{
try {
string toSend = "JOIN " + opponent;
socket.getOut().WriteLine(toSend);
socket.getOut().Flush();
endGame = false;
string recieve = socket.getIn().ReadLine();
if (recieve == "TRUE")
{
return(true);
}
return(false);
} catch (Exception e) {
ChessActivity.OnServerFail();
return(false);
}
}
/// <summary>Get last move made by other player,
/// false is returned if no move yet made.</summary>
public bool getLastMove(gameSquare[,] chessBoard)
{
try {
string toSend = "GETMOVE";
socket.getOut().WriteLine(toSend);
socket.getOut().Flush();
string recieve;
recieve = socket.getIn().ReadLine();
string[] recieveSplit;
recieveSplit = recieve.Split(' ');
if (recieveSplit [0] == "MOVE")
{
int x1 = Convert.ToInt32(recieveSplit [1]);
int y1 = Convert.ToInt32(recieveSplit [2]);
int x2 = Convert.ToInt32(recieveSplit [3]);
int y2 = Convert.ToInt32(recieveSplit [4]);
// the move made by player 2
if (chessBoard[x2, y2].piece == chessman.King)
{
endGame = true;
}
if (chessBoard[x1, y1].piece == chessman.Pawn && (x2 == 0 || x2 == 7))
{
chessBoard[x1, y1].piece = chessman.Queen;
}
chessBoard [x2, y2] = chessBoard [x1, y1];
chessBoard [x1, y1] = new gameSquare {
colour = chessmanColour.empty, piece = chessman.empty
};
return(true);
}
else
{
return(false);
}
} catch (Exception e) {
ChessActivity.OnServerFail();
return(false);
}
}
/// <summary>Moves a game piece.</summary>
/// <remarks><para>(x1,y1) - from postion, (x2,y2) - to position</para></remarks>
public bool move(gameSquare[,] chessBoard, int x1, int y1, int x2, int y2)
{
try {
// check parameters are legal
if (x1 >= 0 && x1 <= 7 &&
x2 >= 0 && x2 <= 7 &&
y1 >= 0 && y1 <= 7 &&
y2 >= 0 && y2 <= 7)
{
// make sure it's your piece to move
if ((chessBoard [x1, y1].colour == chessmanColour.white && isWhite) || chessBoard [x1, y1].colour == chessmanColour.black && !isWhite)
{
// check if the move is legal
if ((chessBoard [x1, y1].colour == chessmanColour.white && chessBoard [x2, y2].colour == chessmanColour.white) ||
(chessBoard [x1, y1].colour == chessmanColour.black && chessBoard [x2, y2].colour == chessmanColour.black))
{
return(false);
}
bool isLegal = false;
switch (chessBoard [x1, y1].piece)
{
case chessman.Bishop:
isLegal = bishopLegal(chessBoard, x1, y1, x2, y2);
break;
case chessman.King:
isLegal = kingLegal(chessBoard, x1, y1, x2, y2);
break;
case chessman.Knight:
isLegal = knightLegal(chessBoard, x1, y1, x2, y2);
break;
case chessman.Pawn:
isLegal = pawnLegal(chessBoard, x1, y1, x2, y2);
if (isLegal && (x2 == 7 || x2 == 0))
{
chessBoard [x1, y1].piece = chessman.Queen;
}
break;
case chessman.Queen:
isLegal = queenLegal(chessBoard, x1, y1, x2, y2);
break;
case chessman.Rook:
isLegal = rookLegal(chessBoard, x1, y1, x2, y2);
break;
}
/* Android.Widget.Toast.MakeText (Android.App.Application.Context, isLegal.ToString (),
* Android.Widget.ToastLength.Long).Show ();
*/
if (isLegal)
{
string toSend = "MOVE " + x1.ToString() + " " + y1.ToString() + " " + x2.ToString() + " " + y2.ToString();
if (chessBoard[x2, y2].piece == chessman.King)
{
endGame = true;
}
chessBoard [x2, y2] = chessBoard [x1, y1];
chessBoard [x1, y1] = new gameSquare {
colour = chessmanColour.empty, piece = chessman.empty
};
socket.getOut().WriteLine(toSend);
socket.getOut().Flush();
return(true);
}
else
{
return(false);
}
}
else
{
return(false);
}
}
else
{
return(false);
}
} catch (Exception e) {
ChessActivity.OnServerFail();
return(false);
}
}