/// <summary>
/// Attempts to parse a line as an IGS game heading starting with the code 15. If it fails, it returns null.
/// </summary>
/// <param name="line">The line, such as "15 Game 693 I: Robot730 (0 4500 -1) vs OmegaGo3 (0 4500 -1)".</param>
/// <returns></returns>
public static GameHeading ParseGameHeading(IgsLine line)
{
Match match = regexGameHeading.Match(line.EntireLine);
if (match.Success)
{/*empty string
* 1. 352
* 2. SANYOSHI
* 3. 0
* 4. 849
* 5. 13 (or -1)
* 6. hamas5ngo
* 7. 0
* 8. 900
* 9. 25
* empty string*/
CanadianTimeInformation black = IgsRegex.TimeInformationFromGameHeading(
match.Groups[8].Value.AsInteger(),
match.Groups[9].Value.AsInteger());
CanadianTimeInformation white = IgsRegex.TimeInformationFromGameHeading(
match.Groups[4].Value.AsInteger(),
match.Groups[5].Value.AsInteger());
return(new GameHeading(
match.Groups[1].Value.AsInteger(),
match.Groups[2].Value,
match.Groups[6].Value,
black,
white));
}
return(null);
}
/// <summary>
/// If the response contains a game heading (with the IGS code 15), the first such heading is returned. Otherwise, null is returned.
/// </summary>
public GameHeading GetGameHeading()
{
foreach (IgsLine line in this)
{
if (line.Code == IgsCode.Move)
{
var heading = (IgsRegex.ParseGameHeading(line));
if (heading != null)
{
return(heading);
}
}
}
return(null);
}
private void HandleIncomingMove(IgsLine igsLine)
{
string trim = igsLine.PureLine.Trim();
GameHeading heading = IgsRegex.ParseGameHeading(igsLine);
if (heading != null)
{
IgsGame whatGame = this.GamesYouHaveOpened.Find(gm => gm.Info.IgsIndex == heading.GameNumber);
if (whatGame == null)
{
// Do not remember this game, perhaps we're in match accept procedure
return;
}
_incomingMovesAreForThisGame = whatGame;
GetConnector(whatGame.Info).TimeControlAdjustment(new IgsTimeControlAdjustmentEventArgs(heading.WhiteTimeRemaining, heading.BlackTimeRemaining));
}
else if (trim.Contains("Handicap"))
{
// 15 0(B): Handicap 3
int handicapStones = IgsRegex.ParseHandicapMove(igsLine);
OnIncomingHandicapInformation(_incomingMovesAreForThisGame, handicapStones);
}
else
{
Match match = this._regexMove.Match(trim);
string moveIndex = match.Groups[1].Value;
string mover = match.Groups[2].Value;
string coordinates = match.Groups[3].Value;
string captures = match.Groups[4].Value;
StoneColor moverColor = mover == "B" ? StoneColor.Black : StoneColor.White;
Move move;
if (coordinates == "Pass")
{
move = Move.Pass(moverColor);
}
else
{
move = Move.PlaceStone(moverColor,
Position.FromIgsCoordinates(coordinates));
}
string[] captureSplit = captures.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string capture in captureSplit)
{
move.Captures.Add(Position.FromIgsCoordinates(capture));
}
HandleIncomingMove(_incomingMovesAreForThisGame, int.Parse(moveIndex), move);
}
}
private async void HandleFullInterrupt(List <IgsLine> currentLineBatch)
{
if (currentLineBatch.Count > 0)
{
if (currentLineBatch.Any(line => line.Code == IgsCode.Status))
{
var infoLine = currentLineBatch.FirstOrDefault(ln => ln.Code == IgsCode.Info);
if (infoLine != null)
{
ScoreLine scoreLine = IgsRegex.ParseObservedScoreLine(infoLine);
if (scoreLine != null)
{
IgsGame gameInfo = this.GamesYouHaveOpened.FirstOrDefault(gi => gi.Info.IgsIndex == scoreLine.GameId);
if (gameInfo != null)
{
ScoreGame(gameInfo, scoreLine.BlackScore, scoreLine.WhiteScore);
}
}
}
}
if (currentLineBatch.Any(line => line.PureLine.EndsWith("accepted.") && line.Code == IgsCode.Info))
{
// An outgoing match request has been accepted by another player and the game can begin.
GameHeading heading = this.Data.LastReceivedGameHeading;
var ogi = await Commands.GetGameByIdAsync(heading.GameNumber);
var builder = GameBuilder.CreateOnlineGame(ogi).Connection(this);
bool youAreBlack = ogi.Black.Name == _username;
bool youAreWhite = ogi.White.Name == _username;
if (youAreBlack)
{
builder.BlackPlayer(
new HumanPlayerBuilder(StoneColor.Black)
.Name(ogi.Black.Name)
.Rank(ogi.Black.Rank)
.Clock(new CanadianTimeControl(TimeSpan.Zero, 25, TimeSpan.FromMinutes(ogi.ByoyomiPeriod)).UpdateFrom(heading.BlackTimeRemaining))
.Build());
}
else
{
builder.BlackPlayer(
new IgsPlayerBuilder(StoneColor.Black, this)
.Name(ogi.Black.Name)
.Rank(ogi.Black.Rank)
.Clock(new CanadianTimeControl(TimeSpan.Zero, 25, TimeSpan.FromMinutes(ogi.ByoyomiPeriod)).UpdateFrom(heading.BlackTimeRemaining))
.Build());
}
if (youAreWhite)
{
builder.WhitePlayer(
new HumanPlayerBuilder(StoneColor.White)
.Name(ogi.White.Name)
.Rank(ogi.White.Rank)
.Clock(new CanadianTimeControl(TimeSpan.Zero, 25, TimeSpan.FromMinutes(ogi.ByoyomiPeriod)).UpdateFrom(heading.WhiteTimeRemaining))
.Build());
}
else
{
builder.WhitePlayer(
new IgsPlayerBuilder(StoneColor.White, this)
.Name(ogi.White.Name)
.Rank(ogi.White.Rank)
.Clock(new CanadianTimeControl(TimeSpan.Zero, 25, TimeSpan.FromMinutes(ogi.ByoyomiPeriod)).UpdateFrom(heading.WhiteTimeRemaining))
.Build());
}
IgsGame newGame = builder.Build();
this.GamesYouHaveOpened.Add(newGame);
Events.OnMatchRequestAccepted(newGame);
}
if (currentLineBatch.Any(line => line.PureLine.Contains("Creating match") && line.Code == IgsCode.Info))
{
// Make it not be an interrupt and let it be handled by the match creator.
foreach (IgsLine line in currentLineBatch)
{
lock (this._mutex)
{
if (this._requestInProgress != null)
{
this._requestInProgress.IncomingLines.Post(line);
}
else
{
if (this.Composure == IgsComposure.Ok)
{
Events.OnUnhandledLine(line.EntireLine);
}
}
}
}
}
if (currentLineBatch.Count == 3 && currentLineBatch[0].Code == IgsCode.SayInformation &&
currentLineBatch[1].Code == IgsCode.Say)
{
int gameNumber = IgsRegex.ParseGameNumberFromSayInformation(currentLineBatch[0]);
ChatMessage chatLine = IgsRegex.ParseSayLine(currentLineBatch[1], this);
IgsGame relevantGame = this.GamesYouHaveOpened.Find(gi => gi.Info.IgsIndex == gameNumber);
if (relevantGame == null)
{
// We received a chat message for a game we no longer play.
return;
}
if (chatLine.Text.StartsWith(gameNumber + " "))
{
chatLine.Text = chatLine.Text.Substring((gameNumber + " ").Length);
}
GetConnector(relevantGame.Info).ChatMessageFromServer(chatLine);
}
if (currentLineBatch[0].Code == IgsCode.Kibitz &&
currentLineBatch.Count >= 2)
{
// 11 Kibitz ([^ ]+).*\[([0-9]+)\]
Tuple <string, int> firstLine = IgsRegex.ParseKibitzHeading(currentLineBatch[0]);
string text = currentLineBatch[1].PureLine.Trim();
IgsGame relevantGame = this.GamesYouHaveOpened.Find(gi => gi.Info.IgsIndex == firstLine.Item2);
GetConnector(relevantGame.Info).ChatMessageFromServer(new ChatMessage(firstLine.Item1,
text, DateTimeOffset.Now, firstLine.Item1 == this.Username ? ChatMessageKind.Outgoing : ChatMessageKind.Incoming));
}
if (currentLineBatch[0].Code == IgsCode.Tell &&
currentLineBatch[0].PureLine.StartsWith("*SYSTEM*") &&
currentLineBatch[0].PureLine.EndsWith("requests undo."))
{
string requestingUser = IgsRegex.WhoRequestsUndo(currentLineBatch[0]);
var games = GetGamesIncluding(requestingUser);
if (games.Any())
{
foreach (var game in games)
{
Events.OnUndoRequestReceived(game.Info);
}
}
else
{
throw new Exception("Received an undo request for a game that's not in progress.");
}
this._ignoreNextPrompt = true;
}
if (currentLineBatch[0].Code == IgsCode.Undo)
{
int numberOfMovesToUndo = currentLineBatch.Count(line => line.Code == IgsCode.Undo);
IgsLine gameHeadingLine = currentLineBatch.Find(line => line.Code == IgsCode.Move);
int game = IgsRegex.ParseGameNumberFromHeading(gameHeadingLine);
IgsGame gameInfo = this.GamesYouHaveOpened.Find(gi => gi.Info.IgsIndex == game);
for (int i = 0; i < numberOfMovesToUndo; i++)
{
GetConnector(gameInfo.Info).ForceMainUndo();
}
}
if (currentLineBatch[0].EntireLine.Contains("'done'"))
{
IgsLine gameHeadingLine = currentLineBatch.Find(line => line.Code == IgsCode.Move);
int gameIndex = IgsRegex.ParseGameNumberFromHeading(gameHeadingLine);
_availableConnectors[gameIndex].SetPhaseFromServer(GamePhaseType.LifeDeathDetermination);
}
if (currentLineBatch.Any(ln => ln.Code == IgsCode.Score))
{
ScoreLine scoreLine = IgsRegex.ParseScoreLine(currentLineBatch.Find(ln => ln.Code == IgsCode.Score));
IgsGame gameInfo = this.GamesYouHaveOpened.Find(gi =>
gi.Info.White.Name == scoreLine.White &&
gi.Info.Black.Name == scoreLine.Black);
ScoreGame(gameInfo, scoreLine.BlackScore, scoreLine.WhiteScore);
}
}
}
private async Task HandleIncomingData(StreamReader sr)
{
bool thisIsNotAMove = false;
bool weAreHandlingAnInterrupt = false;
bool interruptIsImpossible = false;
List <IgsLine> currentLineBatch = new List <IgsLine>();
while (true)
{
string line;
try
{
line = await sr.ReadLineAsync();
}
catch (Exception)
{
line = null;
}
if (line == null)
{
ConnectionLost();
return;
}
line = line.Trim();
IgsCode code = ExtractCodeFromLine(line);
IgsLine igsLine = new IgsLine(code, line);
Events.OnIncomingLine((weAreHandlingAnInterrupt ? "(INTERRUPT) " : "") + (interruptIsImpossible ? "(INTERRUPT IMPOSSIBLE) " : "") + line);
// IGS occasionally sends blank lines, I don't know why. They serve no reason.
if (line == "")
{
continue;
}
switch (this.Composure)
{
case IgsComposure.Confused:
case IgsComposure.Ok:
case IgsComposure.Disconnected:
// No special mode.
break;
case IgsComposure.InitialHandshake:
if (igsLine.EntireLine.Trim() == "1 5")
{
this.Composure = IgsComposure.Ok;
continue;
}
else
{
// Ignore.
continue;
}
case IgsComposure.LoggingIn:
if (igsLine.EntireLine.Contains("Invalid password."))
{
this.Composure = IgsComposure.Confused;
this._loginError = "The password is incorrect.";
continue;
}
if (igsLine.EntireLine.Contains("Sorry, names can be"))
{
this.Composure = IgsComposure.Confused;
this._loginError = "Your name is too long.";
continue;
}
if (igsLine.EntireLine.Contains("This is a guest account."))
{
this.Composure = IgsComposure.Confused;
this._loginError = "The username does not exist.";
continue;
}
if (igsLine.EntireLine.Contains("1 5"))
{
this.Composure = IgsComposure.Ok;
continue;
}
break;
}
if (igsLine.Code == IgsCode.Error)
{
Events.OnErrorMessageReceived(igsLine.PureLine);
}
currentLineBatch.Add(igsLine);
if (weAreHandlingAnInterrupt && code == IgsCode.Prompt)
{
// Interrupt message is over, let's wait for a new message
weAreHandlingAnInterrupt = false;
HandleFullInterrupt(currentLineBatch);
thisIsNotAMove = false;
interruptIsImpossible = false;
currentLineBatch = new List <IgsLine>();
continue;
}
if (code == IgsCode.Prompt)
{
thisIsNotAMove = false;
currentLineBatch = new List <IgsLine>();
interruptIsImpossible = false;
if (this._ignoreNextPrompt)
{
this._ignoreNextPrompt = false;
continue;
}
}
if (code == IgsCode.Kibitz)
{
weAreHandlingAnInterrupt = true;
continue;
}
if (code == IgsCode.Beep)
{
Events.OnBeep();
continue;
}
if (!interruptIsImpossible)
{
if (code == IgsCode.Tell)
{
if (igsLine.PureLine.StartsWith("*SYSTEM*"))
{
weAreHandlingAnInterrupt = true;
continue;
}
HandleIncomingChatMessage(line);
weAreHandlingAnInterrupt = true;
continue;
}
if (code == IgsCode.SayInformation)
{
weAreHandlingAnInterrupt = true;
continue;
}
if (code == IgsCode.Status)
{
weAreHandlingAnInterrupt = true;
continue;
}
if (code == IgsCode.Shout)
{
HandleIncomingShoutMessage(line);
weAreHandlingAnInterrupt = true;
continue;
}
if (code == IgsCode.StoneRemoval)
{
Tuple <int, Position> removedStone = IgsRegex.ParseStoneRemoval(igsLine);
OnIncomingStoneRemoval(removedStone.Item1, removedStone.Item2);
continue;
}
if (code == IgsCode.Move)
{
var heading = IgsRegex.ParseGameHeading(igsLine);
if (heading != null)
{
this.Data.LastReceivedGameHeading = heading;
}
if (!thisIsNotAMove)
{
HandleIncomingMove(igsLine);
weAreHandlingAnInterrupt = true;
}
continue;
}
if (code == IgsCode.Undo)
{
thisIsNotAMove = true;
weAreHandlingAnInterrupt = true;
continue;
}
}
if (code == IgsCode.Info)
{
// 9 Adding game to observation list.
if (igsLine.EntireLine.Contains("9 Adding game to observation list."))
{
interruptIsImpossible = true;
}
if (!interruptIsImpossible)
{
if (igsLine.PureLine == "yes")
{
// This is "ayt" response, ignore it.
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.EntireLine ==
"9 You can check your score with the score command, type 'done' when finished.")
{
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.PureLine.Contains("accepted."))
{
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.PureLine.Contains("Removing @"))
{
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.PureLine.Contains("has run out of time"))
{
weAreHandlingAnInterrupt = true;
string whoRanOutOfTime = IgsRegex.WhoRanOutOfTime(igsLine);
foreach (var game in GetGamesIncluding(whoRanOutOfTime).ToList())
{
game.Controller.IgsConnector.EndTheGame(
GameEndInformation.CreateTimeout(
game.Controller.Players.First(pl => pl.Info.Name == whoRanOutOfTime),
game.Controller.Players)
);
}
continue;
}
if (igsLine.PureLine.Contains("White resigns.}"))
{
int gameInWhichSomebodyResigned = IgsRegex.WhatObservedGameWasResigned(igsLine);
ResignObservedGame(gameInWhichSomebodyResigned, StoneColor.White);
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.PureLine.Contains("Black resigns.}"))
{
int gameInWhichSomebodyResigned = IgsRegex.WhatObservedGameWasResigned(igsLine);
ResignObservedGame(gameInWhichSomebodyResigned, StoneColor.Black);
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.PureLine.Contains("has resigned the game"))
{
string whoResigned = IgsRegex.WhoResignedTheGame(igsLine);
if (whoResigned != this._username)
{
// .ToList() is used because the collection may be modified
foreach (var game in GetGamesIncluding(whoResigned).ToList())
{
HandleIncomingResignation(game.Info, whoResigned);
}
}
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.PureLine.Contains("has typed done."))
{
string username = IgsRegex.GetFirstWord(igsLine);
weAreHandlingAnInterrupt = true;
foreach (var game in GetGamesIncluding(username))
{
var player = game.Controller.Players.First(pl => pl.Info.Name == username);
game.Controller.IgsConnector.RaiseServerSaidDone(player);
}
continue;
}
if (igsLine.PureLine.Contains("Board is restored to what it was when you started scoring"))
{
foreach (
var game in
this.GamesYouHaveOpened.Where(
gi =>
gi.Controller.Phase.Type ==
GamePhaseType.LifeDeathDetermination))
{
GetConnector(game.Info).ForceLifeDeathUndoDeathMarks();
}
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.PureLine.Contains("Removed game file"))
{
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.PureLine.Contains("game completed."))
{
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.PureLine.StartsWith("!!*Pandanet*!!:"))
{
// Advertisement
weAreHandlingAnInterrupt = true;
continue;
}
if (IgsRegex.IsIrrelevantInterruptLine(igsLine))
{
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.PureLine.StartsWith("Increase "))
{
weAreHandlingAnInterrupt = true;
string person = IgsRegex.ParseIncreaseXTimeByYMinute(igsLine);
foreach (var game in this.GamesYouHaveOpened)
{
if (game.Info.Black.Name == person ||
game.Info.White.Name == person)
{
MakeUnattendedRequest("refresh " + game.Info.IgsIndex);
}
}
}
if (igsLine.PureLine.EndsWith("declines undo."))
{
string username = IgsRegex.WhoDeclinesUndo(igsLine);
foreach (var game in GetGamesIncluding(username))
{
Events.OnUndoDeclined(game.Info);
}
weAreHandlingAnInterrupt = true;
continue;
}
if (igsLine.PureLine.EndsWith("declines your request for a match."))
{
Events.OnMatchRequestDeclined(igsLine.PureLine.Substring(0, igsLine.PureLine.IndexOf(' ')));
weAreHandlingAnInterrupt = true;
continue;
}
IgsMatchRequest matchRequest = IgsRegex.ParseMatchRequest(igsLine);
if (matchRequest != null)
{
this._incomingMatchRequests.Add(matchRequest);
Events.OnIncomingMatchRequest(matchRequest);
weAreHandlingAnInterrupt = true;
continue;
}
}
}
if (!weAreHandlingAnInterrupt)
{
// We cannot handle this generally - let's hand it off to whoever made the request for this information.
lock (this._mutex)
{
if (this._requestInProgress != null)
{
this._requestInProgress.IncomingLines.Post(igsLine);
}
else
{
if (this.Composure == IgsComposure.Ok)
{
Events.OnUnhandledLine(igsLine.EntireLine);
}
}
}
}
}
}
public async Task <IgsGame> StartObserving(IgsGameInfo gameInfo)
{
if (this.igsConnection.GamesBeingObserved.Any(g => g.Info.IgsIndex == gameInfo.IgsIndex))
{
// We are already observing this game.
return(null);
}
var response = await MakeRequestAsync("observe " + gameInfo.IgsIndex);
if (response.IsError)
{
// Observing failed.
return(null);
}
var heading = response.GetGameHeading();
if (heading == null)
{
return(null);
}
if (heading.BlackName != gameInfo.Black.Name || heading.WhiteName != gameInfo.White.Name)
{
// It's a different game now.
return(null);
}
TimeControl blackClock =
new CanadianTimeControl(TimeSpan.Zero, 25, TimeSpan.FromMinutes(gameInfo.ByoyomiPeriod)).UpdateFrom(
heading.BlackTimeRemaining);
TimeControl whiteClock =
new CanadianTimeControl(TimeSpan.Zero, 25, TimeSpan.FromMinutes(gameInfo.ByoyomiPeriod)).UpdateFrom(
heading.WhiteTimeRemaining);
if (heading.BlackTimeRemaining.PeriodStonesLeft == 0 &&
heading.BlackTimeRemaining.PeriodTimeLeft == TimeSpan.Zero &&
heading.BlackTimeRemaining.MainTimeLeft == TimeSpan.Zero)
{
blackClock = new NoTimeControl();
whiteClock = new NoTimeControl();
}
var titleLine = response.LastOrDefault(line => line.Code == IgsCode.Info);
string gameName = null;
if (titleLine != null)
{
gameName = IgsRegex.ParseTitleInformation(titleLine);
}
var blackPlayer =
new IgsPlayerBuilder(StoneColor.Black, this.igsConnection)
.Name(gameInfo.Black.Name)
.Rank(gameInfo.Black.Rank)
.Clock(blackClock)
.Build();
var whitePlayer =
new IgsPlayerBuilder(StoneColor.White, this.igsConnection)
.Name(gameInfo.White.Name)
.Rank(gameInfo.White.Rank)
.Clock(whiteClock)
.Build();
var onlineGame = GameBuilder.CreateOnlineGame(gameInfo)
.Connection(this.igsConnection)
.BlackPlayer(blackPlayer)
.WhitePlayer(whitePlayer)
.Ruleset(RulesetType.Japanese)
.Komi(gameInfo.Komi)
.BoardSize(gameInfo.BoardSize)
.Name(gameName)
.Build();
this.igsConnection.GamesBeingObserved.Add(onlineGame);
this.igsConnection.GamesYouHaveOpened.Add(onlineGame);
this.igsConnection.MakeUnattendedRequest("moves " + gameInfo.IgsIndex);
return(onlineGame);
}