public void ExecuteAction(InGameAction action)
{
//check if the userid of the action is actually playing
if ((from u in _Users where u.ID == action.UserID select u).Count() == 0)
{
if (action is BuildRoadAction)
{
TryBuildRoad((BuildRoadAction)action);
}
}
else
// we received an ingame action from a user which is not in this game
{
MessageFromServerAction message = new MessageFromServerAction();
message.Message = String.Format(
"Hey! You send an action for game with id: {0}, but you with userid {1} are not in the players list of game with id: {0}",
action.GameID, action.UserID);
}
}
private void TryHandleGameAction(InGameAction action)
{
if (CheckIfPlayerBelongsToGame(action.GameID, action.Sender))
{
//HandleGameAction(action);
}
else
{
//notify the user some mismatch happened
MessageFromServerAction response = new MessageFromServerAction();
response.Message = String.Format(
"You, player {0} do not belong to game with ID {1}",
action.GameID, _CurrentPerson.Name);
response.Sender = _ServerUser.ID;
Whisper(action.Sender, response);
return;
}
}
private void TryCreateNewGame(GameAction action)
{
//check if player has already a game
foreach (ServerGame game in _Games)
{
//check if player is already hosting
if (game.Host.Equals(action.Sender))
{
string message = "You are already hosting a game, game creation failed";
MessageFromServerAction messageBack = new MessageFromServerAction();
messageBack.Message = message;
messageBack.Sender = _ServerUser.ID;
Whisper(action.Sender, messageBack);
return;
}
//check if player is already in another game
if (game.Users != null)
{
foreach (XmlUser player in game.Users)
{
if (player.Equals(action.Sender))
{
string message = String.Format("You are already in the game '{0}'", game.Game.Settings.Name);
MessageFromServerAction messageBack =
new MessageFromServerAction();
messageBack.Message = message;
messageBack.Sender = _ServerUser.ID;
Whisper(action.Sender, messageBack);
return;
}
}
}
}
int gameID = GetNewGameID();
// create game, user is not in another game hosting or playing
ServerGame serverGame =
new ServerGame(((TryCreateGameAction)action).GameSettings);
serverGame.Host = _CurrentPerson;
serverGame.ID = gameID;
serverGame.Users.Add(_CurrentPerson);
_Games.Add(serverGame);
//create the message
GameCreatedAction newGameMessage = new GameCreatedAction();
newGameMessage.Sender = _ServerUser.ID;
newGameMessage.ID = gameID;
newGameMessage.Game = ((TryCreateGameAction)action).GameSettings;
//broadcast the message
BroadcastMessage(newGameMessage, null);
}
private void SayError(int userID, string error)
{
MessageFromServerAction message = new MessageFromServerAction();
message.Message = error;
Whisper(userID, message);
}
/// <summary>
/// Takes a <see cref="Common.Person">Person</see> and allows them
/// to join the chat room, if there is not already a chatter with
/// the same name
/// </summary>
/// <param name="person"><see cref="Common.Person">Person</see> joining</param>
/// <returns>An array of <see cref="Common.Person">Person</see> objects</returns>
public JoinResult Join(XmlUserCredentials person)
{
MessageFromServerAction message = new MessageFromServerAction();
message.Sender = _ServerUser.ID;
if (person == null)
{
message.Message = "No valid person passed (Usercredentials object == null)";
return new JoinResult() { FailMessage = message };
}
if (String.IsNullOrEmpty(person.Name) ||
String.IsNullOrEmpty(person.Password))
{
message.Message = "either password or username isnt valid: empty password or username";
return new JoinResult() { FailMessage = message };
}
/*
XmlUser user = _UserAdministration.Authenticate(person);
// we failed to authenticate, communicate this back to user
if (user == null)
{
message.Message = "either password or username isnt valid, or both";
return new JoinResult() { FailMessage = message };
}
*/
//Yey! we are authenticated. Add user to list of users and
// return the lobby state
bool userAdded = false;
//create a new ChatEventHandler delegate, pointing to the MyEventHandler() method
myEventHandler = new GameEventHandler(MyEventHandler);
//carry out a critical section that checks to see if the new chatter
//name is already in use, if its not allow the new chatter to be
//added to the list of chatters, using the person as the key, and the
//ChatEventHandler delegate as the value, for later invocation
lock (threadSync)
{
/*
if (!PlayerExists(user.ID))
{
_Users.Add(user, MyEventHandler);
userAdded = true;
_CurrentPerson = user;
}
else
{
message.Message = "It seems that you are already logged in.";
return new JoinResult() { FailMessage = message };
}
*/
}
//if the new chatter could be successfully added, get a callback instance
//create a new message, and broadcast it to all other chatters, and then
//return the list of al chatters such that connected clients may show a
//list of all the chatters
if (userAdded)
{
_Callback = OperationContext.Current.GetCallbackChannel<IChatCallback>();
//add this newly joined chatters ChatEventHandler delegate, to the global
//multicast delegate for invocation
ChatEvent += myEventHandler;
XmlLobbyState lobbyState = new XmlLobbyState();
//carry out a critical section that copy all chatters to a new list
lock (threadSync)
{
//copy chatlog
if (_LobbyChatLog != null)
{
lobbyState.LobbyChat = _LobbyChatLog.Copy();
}
//copy users
if (_Users != null)
{
lobbyState.Users = new List<XmlUser>();
foreach (KeyValuePair<XmlUser, GameEventHandler> lobbyUser in _Users)
lobbyState.Users.Add(lobbyUser.Key.Copy());
}
//copy games
if (_Games != null)
{
lobbyState.Games = CreateGameList();
}
}
/*
//Say to all other players we have a new player joined in the lobby
LobbyJoinedAction lobbyJoined = new LobbyJoinedAction() { NewPlayer = user, Sender = _ServerUser.ID };
BroadcastMessage(lobbyJoined, user);
return new JoinResult() { User = user, LobbyState = lobbyState };
*/
return null;
}
else
{
message.Message = "You are already in the list of logged in players!";
message.Sender = _ServerUser.ID;
return null;
}
}
private void TryJoinGame(JoinGameAction action)
{
ServerGame gameToFind = null;
foreach (ServerGame game in _Games)
{
if (game.ID == action.GameID)
{
gameToFind = game;
break;
}
}
// whoops, user send a wrong ID or game is removed
// notify the user the game is lost into oblivion
if (gameToFind == null)
{
string message = "The game you where trying to join was not found on the server";
MessageFromServerAction messageBack = new MessageFromServerAction();
messageBack.Message = message;
messageBack.Sender = _ServerUser;
Whisper(action.Sender.Name, messageBack);
return;
}
//game full, notify user
if (gameToFind != null)
{
if (gameToFind.Users.Count == gameToFind.Settings.MaxPlayers)
{
string message = "The game you where trying to join is already full";
MessageFromServerAction messageBack = new MessageFromServerAction();
messageBack.Message = message;
messageBack.Sender = _ServerUser;
Whisper(action.Sender.Name, messageBack);
return;
}
if (gameToFind.Users.Count < gameToFind.Settings.MaxPlayers)
{
gameToFind.Users.Add(action.Sender);
GameJoinedAction gameJoinedAction = new GameJoinedAction();
gameJoinedAction.GameID = action.GameID;
gameJoinedAction.Player = action.Sender;
gameJoinedAction.Sender = _ServerUser;
BroadcastMessage(gameJoinedAction, null);
}
}
}
private void ExecuteAction(GameAction action)
{
if (action is InGameAction)
{
IValidAction valid = (IValidAction)((InGameAction)action);
if (valid != null)
{
ServerGame serverGame = (from g in _Games
where g.Game.ID == ((InGameAction)action).GameID
select g).Single();
if (!valid.IsValid(serverGame.Game))
{
MessageFromServerAction message = new MessageFromServerAction();
message.Message = "Invalid action!";
Whisper(_CurrentPerson.Name, message);
}
else
{
serverGame.ExecuteAction((InGameAction)action);
}
}
}
if (action is TryCreateGameAction)
{
TryCreateNewGame(action);
}
if (action is LobbyChatAction)
{
SayToLobby(action);
}
if (action is JoinGameAction)
{
TryJoinGame((JoinGameAction)action);
}
if (action is InGameAction)
{
HandleGameAction((InGameAction)action);
}
}
public GameAction ExecuteAction(InGameAction action)
{
if (action.IsValid(_Game))
{
//Execute the game action if the action is valid
action.PerformTurnAction(_Game);
// Send action back to sender for confirmation
//Send action to all other players and spectators
//Add action to the gamelog
_Game.GameLog.Add(action);
return action;
}
else
// we received an illegal ingameaction.
// This should only happen when a user deliberately tampers with data
{
MessageFromServerAction message = new MessageFromServerAction();
message.Message = String.Format(
"The game action does not seem to be valid. The reason: action object says \"{0}\"",
action.InvalidMessage);
return message;
}
}
public GameAction TryBuildShip(BuildShipAction action)
{
if (_Game.IsRoadShipPresent(action.Intersection))
// hey, road or ship found, we can't built
{
MessageFromServerAction message = new MessageFromServerAction();
message.Message = String.Format(
"Hey! We cannot build a ship at location {0}. There is already a road or ship.",
action.GameID, action.UserID);
return message;
}
else
// yey! no ship or road present, let's build there
{
GamePlayer player = _Game.GetPlayer(action.UserID);
if (player != null)
{
player.BuildShip(action.Intersection);
return action;
}
else
{
MessageFromServerAction message = new MessageFromServerAction();
message.Message = String.Format(
"Hey! We _can_ build a ship at location {0}, but userid {1} is not found in game with id {2}",
action.Intersection.ToString(), action.UserID, action.GameID);
return message;
}
}
}
public GameAction TryBuildTown(PlaceTownAction action)
{
if (_Game.IsTownCityPresent(action.Location))
// town or city found, we cannot build there
{
MessageFromServerAction message = new MessageFromServerAction();
message.Message = String.Format(
"Hey! We cannot build a town at location {0}. There is already a town or city.",
action.Location);
return message;
}
else
// the spot is free to build for the player.
{
//check if we have a town or city on the side, and check if we have a road or ship
// connecting to the location where player wants to put a town
GamePlayer player = _Game.GetPlayer(action.UserID);
if (!_Game.HasRoadShipAtPoint(action.Location, player))
//sweet, we have a road or ship at a side of the location
// and the spot or its neighbours isnt taken yet
{
player.BuildTown(action.Location);
return action;
}
else
{
MessageFromServerAction message = new MessageFromServerAction();
message.Message = String.Format(
"Hey! We cannot build a town at location {0}. You do not have a road or ship at that point.",
action.Location);
return message;
}
}
throw new Exception("");
}
