private GameOperationResponse HandleRetrieveCharacters(int sessionId, RetrieveCharacters operation)
{
try
{
var characters = this.application.CharacterDatabase.Query <PlayerData>("PlayerData/ByUsername")
//.Customize(x => x.WaitForNonStaleResultsAsOfNow())
.Where(chr => chr.Username.Equals(operation.Username, StringComparison.CurrentCultureIgnoreCase))
.Select(chr => new { chr.Name, chr.Race, chr.Origin, chr.Level })
.ToArray();
if (characters.Length > 0)
{
var characterCollection = new CharacterStructure[characters.Length];
for (var i = 0; i < characters.Length; i++)
{
var chr = characters[i];
characterCollection[i] = new CharacterStructure(chr.Race, chr.Origin, chr.Level, chr.Name);
}
return(new RetrieveCharactersResponse(operation.OperationCode)
{
ReturnCode = (short)ResultCode.Ok,
Characters = characterCollection
});
}
return(operation.GetErrorResponse((short)ResultCode.Ok));
}
catch (Exception e)
{
_logger.Error(e);
return(operation.GetErrorResponse((short)ResultCode.Fail));
}
}
private GameOperationResponse HandleCreateNewUser(int sessionId, CreateUser operation)
{
try
{
var username = operation.Username.ToUpper();
var existingUserData = this.application.UserDatabase.Query <UserData>("UserData/ByUsername")
//.Customize(x => x.WaitForNonStaleResultsAsOfNow())
.Select(user => new { user.Username })
.FirstOrDefault(user => user.Username.Equals(operation.Username, StringComparison.CurrentCultureIgnoreCase));
if (existingUserData != null)
{
return(operation.GetErrorResponse((short)ResultCode.UsernameAlreadyExists));
}
ResultCode resultCode;
if (LoginHelper.IsValidUsername(username, out resultCode) == false)
{
return(operation.GetErrorResponse((short)resultCode));
}
if (LoginHelper.IsValidPassword(operation.Password, out resultCode) == false)
{
return(operation.GetErrorResponse((short)resultCode));
}
var passwordHash = SaltedHash.Create(operation.Password);
var newUserInfo = new UserData
{
Id = UserData.GenerateId(username),
Username = username,
Salt = passwordHash.Salt,
Password = passwordHash.Hash,
IsBanned = false,
CreatedOn = DateTime.Now,
LastLogin = null,
};
this.application.UserDatabase.Store(newUserInfo);
return(operation.GetErrorResponse((short)ResultCode.Ok));
}
catch (Exception e)
{
_logger.Error(e);
return(operation.GetErrorResponse((short)ResultCode.Fail));
}
}
private void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
Logger.Error(e.ExceptionObject);
}
void HandlePingResponse(OperationResponse response)
{
var currTime = (int)(DateTime.UtcNow.Ticks / TimeSpan.TicksPerMillisecond);
var pingResponse = new Operations.PingResponse(this.Protocol, response);
if (!pingResponse.IsValid)
{
if (_logger.IsErrorEnabled)
{
_logger.Error("Received unknown ping response");
}
return;
}
// creating new latency list
if (latencyList == null)
{
latencyList = new List <int>();
}
// adding the latency for the last packet received
var latency = (currTime - pingResponse.ServerTimeStamp) >> 1;
latencyList.Add(latency);
// initial (temporary) time sync
var mto = pingResponse.MasterTimeStamp - currTime + latency;
Interlocked.Exchange(ref masterTimeOffset, mto);
if (pingCount > InternalPingRequestCount)
{
// sorting low to high latency
latencyList.Sort();
var median = this.latencyList[(latencyList.Count >> 1) + 1];
var mean = this.latencyList.Average();
// calculating the diff mean squares
var meanSquaresList = new List <float>();
this.latencyList.ForEach(n => meanSquaresList.Add((float)Math.Pow(n - mean, 2)));
// calculating the standard deviation
var deviation = (float)Math.Sqrt(meanSquaresList.Average() / (meanSquaresList.Count - 1));
// omiting higher latencies due to ack delay
var newLatencyList = new List <int>();
this.latencyList.ForEach(n =>
{
if (n <= deviation + median)
{
newLatencyList.Add(n);
}
});
// calculating the average latency (estimate)
var meanLatency = newLatencyList.Average();
var nMto = (int)Math.Round(pingResponse.MasterTimeStamp - currTime + meanLatency);
Interlocked.Exchange(ref masterTimeOffset, nMto);
this.latencyList = null;
Logger.DebugFormat("Time sync completed. Master Time Offset = {0}. MTS={1} STS={2}. OSTS={3}", mto, pingResponse.MasterTimeStamp, currTime, pingResponse.ServerTimeStamp);
}
}