public Task <FinalWorldEnterData> EnterWorld(int characterSlotNumber)
{
if (State != ClientState.LobbyServerCharacterListReceived)
{
throw new InvalidOperationException("Client has not received characters or busy");
}
var tcs = new VirtualTCS <FinalWorldEnterData>();
ActiveTask = tcs;
State = ClientState.LobbyServerWorldEnterInProgress;
LobbyClient.EnterWorld(characterSlotNumber);
return(tcs.Task);
}