Function MultiPollForLevelInfo

Descent3/multi_connect.cpp:598–657

// Client only

int MultiPollForLevelInfo() {
  float start_time, ask_time, initial_start_time;
  int connected = 0;
  uint8_t data[MAX_RECEIVE_SIZE];
  network_address from_addr;

  ShowProgressScreen(TXT_MLTWAITSERVER);

  NetPlayers[Player_num].sequence = NETSEQ_WAITING_FOR_LEVEL;
  Got_level_info = 0;
  Got_heartbeat = false;

  MultiSendReadyForLevel();

  start_time = timer_GetTime();
  ask_time = timer_GetTime();
  initial_start_time = timer_GetTime();

  // Go through this waiting period until the server times out or we get level info
  while ((timer_GetTime() - start_time < LEVEL_POLL_TIME) && !Got_level_info &&
         (timer_GetTime() - initial_start_time < (LEVEL_POLL_TIME * 5))) {
    if (timer_GetTime() - ask_time > 5.0) {
      ask_time = timer_GetTime();
      MultiSendReadyForLevel();
    }

    int size;
    while ((size = nw_ReceiveReliable(NetPlayers[Player_num].reliable_socket, data, MAX_RECEIVE_SIZE)) > 0) {
      MultiProcessBigData(data, size, &Netgame.server_address);
    }

    while ((size = nw_Receive(data, &from_addr)) > 0) {
      if (data[0] == MP_HEARTBEAT) {
        mprintf(0, "Got a heart beat from the server.\n");
        Got_heartbeat = true;
      }
    }

    if (Got_heartbeat) {
      // Reset timer because we got a heartbeat
      start_time = timer_GetTime();
      Got_heartbeat = false;
    }
  }

  if (!Got_level_info) {
    ShowProgressScreen(TXT_MLTNOLEVELINFO);
    MultiLeaveGame();
    Sleep(2000);
  } else if (Got_level_info < 0) {
    ShowProgressScreen(TXT(Join_response_strings[-Got_level_info]));
    MultiLeaveGame();
    Sleep(2000);
  } else {
    Got_level_info = 0;
    return 1;
  }