// Call this to begin countdown and actual level.
// Hides intro text and displays countdown text and plays countdown sound.
public void StartLevel()
{
lvlState = 1;
countdownText.SetActive(true);
ResizeTextBG(GetRect(countdownText));
sound.PlayDelayed(0.0f);
StartCoroutine(CountDown());
StartCoroutine(Client.UpdateServerGameStarted(maxGameTime));
}