Function DemoToggleRecording

Descent3/demofile.cpp:339–383

Prompts user for filename and starts recording if successfull

// Prompts user for filename and starts recording if successfull
void DemoToggleRecording() {
  char szfile[_MAX_PATH * 2];
  szfile[0] = '\0';
  if (Demo_flags == DF_RECORDING) {
    // Stop recording and close the file
    cfclose(Demo_cfp);
    Demo_flags = DF_NONE;
    AddBlinkingHUDMessage(TXT_DEMOSAVED);

    Demo_fname[0] = '\0';
    return;
  } else if (Demo_flags == DF_PLAYBACK) {
    // We can't record a demo while we are playing back a demo
    return;
  }

  //	hand coded 128 because long filenames were failing in cfopen(which called fopen, which failed on very
  // long filenames.  instead of printing a message out to the user, just don't allow filenames that long)
  if (DoEditDialog(TXT_DEMOFILENAME, szfile, 128)) {
    if (stricmp(szfile + (strlen(szfile) - 4), ".dem") != 0) {
      strcat(szfile, ".dem");
    }
    ddio_MakePath(Demo_fname, Base_directory, "demo", szfile, NULL);
    mprintf(0, "Saving demo to file: %s\n", Demo_fname);
    // Try to create the file
    Demo_cfp = cfopen(Demo_fname, "wb");
    if (Demo_cfp) {
      // Setup the demo variables
      if (!(Game_mode & GM_MULTI)) {
        MultiBuildMatchTables();
      }
      // Male sure we write the player info the first frame
      Demo_last_pinfo = timer_GetTime() - (DEMO_PINFO_UPDATE * 2);
      Demo_flags = DF_RECORDING;
      // Write the header
      DemoWriteHeader();
      DemoStartNewFrame();
    } else {
      // cfopen failed
      AddBlinkingHUDMessage(TXT_DEMOCANTCREATE);
      Demo_fname[0] = '\0';
      return;
    }
  }
}

void DemoWriteHeader() {
  char szsig[10];