private void handleGetConstants(TACMessage msg) {
    // The status code will be NOT_SUPPORTED and the message will contain
    // no other fields if the server did not support this command
    // => does not need to check it
    while (msg.nextTag()) {
      if (msg.isTag("gameLength")) {
	int len = msg.getValueAsInt(-1);
	if (len > 0) {
	  this.gameLength = len * 1000;
	}
      } else if (msg.isTag("gameType")) {
	this.playingGameType = msg.getValue();
      }
    }
  }