Function MultiProcessData

Descent3/multi.cpp:9518–9951

Takes the individual packet types and passes their data to the appropriate routines

// Takes the individual packet types and passes their data to the appropriate routines
void MultiProcessData(uint8_t *data, int len, int slot, network_address *from_addr) {
  uint8_t type = data[0];
  len = len;
  int sequence = -1;

  // HEY!!!!!  These packets are the only ones that are accepted by non-connected machines
  // (ie people on the netgame join screen)
  // This will go away once I fill out all the ACCEPT_CONDITION types
  if (!(NetPlayers[Player_num].flags & NPF_CONNECTED)) {
    if (type != MP_CONNECTION_ACCEPTED && type != MP_JOIN_RESPONSE && type != MP_GAME_INFO &&
        type != MP_PLAYERLIST_DATA && type != MP_ASK_FOR_URL && type != MP_CUR_MSN_URLS)
      return;
  } else {
    // Setup our sequences for accept conditions
    if (Netgame.local_role == LR_SERVER) {
      if (NetPlayers[Player_num].sequence != NETSEQ_PLAYING)
        return;
      if (slot == -1)
        sequence = -1;
      else
        sequence = NetPlayers[slot].sequence;
    } else {
      sequence = NetPlayers[Player_num].sequence;
    }
  }

#ifndef RELEASE
  Multi_packet_tracking[type]++;
#endif

  switch (type) {
  case MP_CONNECTION_ACCEPTED:
    ACCEPT_CONDITION(-1, -1);
    MultiDoConnectionAccepted(data);
    break;
  case MP_REQUEST_PLAYERS:
    MultiDoRequestPlayers(data);
    break;
  case MP_REQUEST_BUILDINGS:
    MultiDoRequestBuildings(data);
    break;
  case MP_REQUEST_OBJECTS:
    MultiDoRequestObjects(data);
    break;
  case MP_REQUEST_WORLD_STATES:
    MultiDoRequestWorldStates(data);
    break;
  case MP_PLAYER_POS:
    ACCEPT_CONDITION(NETSEQ_PLAYING, NETSEQ_PLAYING);
    NetPlayers[Player_num].total_bytes_rcvd += len;
    MultiDoPlayerPos(data);
    break;
  case MP_DONE_PLAYERS:
    MultiDoDonePlayers(data);
    break;
  case MP_DONE_BUILDINGS:
    MultiDoDoneBuildings(data);
    break;