Ca3DE/Server/ClientInfo.cpp

   1 /*
   2 Cafu Engine, http://www.cafu.de/
   3 Copyright (c) Carsten Fuchs and other contributors.
   4 This project is licensed under the terms of the MIT license.
   5 */
   6
   7 #include "ClientInfo.hpp"
   8
   9
  10 ClientInfoT::ClientInfoT(const NetAddressT& ClientAddress_, const std::string& PlayerName_, const std::string& ModelName_)
  11     : ClientAddress(ClientAddress_),
  12       GameProtocol(),
  13       ReliableDatas(),
  14       TimeSinceLastMessage(0.0),
  15       TimeSinceLastUpdate(0.0),
  16       ClientState(Wait4MapInfoACK),
  17       PlayerName(PlayerName_),
  18       ModelName(ModelName_),
  19       EntityID(0),
  20       PreviousPlayerCommand(),
  21       PendingPlayerCommands(),
  22       LastPlayerCommandNr(0),
  23       LastKnownFrameReceived(0),
  24       BaseLineFrameNr(1),
  25       OldStatesPVSEntityIDs()
  26 {
  27     OldStatesPVSEntityIDs.PushBackEmpty(16);    // The size MUST be a power of 2.
  28 }
  29
  30
  31 void ClientInfoT::InitForNewWorld(unsigned long ClientEntityID)
  32 {
  33     ClientState            = Wait4MapInfoACK;
  34     EntityID               = ClientEntityID;
  35
  36     PreviousPlayerCommand = PlayerCommandT();
  37     PendingPlayerCommands.Overwrite();
  38
  39     // The client restarts the player command numbering at 1 whenever a new world is entered.
  40     // A value of 0 means that no player command has been received yet (in the current world).
  41     LastPlayerCommandNr    = 0;
  42
  43     // From Ca3DEWorldT init (ctor), the client knows the baselines ("create states") for frame 1,
  44     // so the server does not have to sent `SC1_EntityBaseLine` messages for the entities in the map file.
  45     // However, the first `SC1_FrameInfo` message can *not* delta from frame 1, but must delta from the
  46     // baselines, because the client's PVS info for frame 1 is not setup. And even if it was, the server
  47     // frame is probably much much larger than 1, so that limited PVS information buffering would require
  48     // sending from the baseline anyway. Thus LastKnownFrameReceived = 0.
  49     LastKnownFrameReceived = 0;
  50     BaseLineFrameNr        = 1;
  51
  52     for (unsigned int i = 0; i < OldStatesPVSEntityIDs.Size(); i++)
  53         OldStatesPVSEntityIDs[i].Overwrite();
  54 }