public IEnumerator CountDown(int seconds)
{
DeactivateAllCars();
gameMode.enabled = false;
gameUI.SetResultText("");
for (int i = seconds; i > 0; i--)
{
gameUI.SetCountDownText(i.ToString());
yield return(new WaitForSeconds(1));
}
gameUI.SetCountDownText("GO");
yield return(new WaitForSeconds(1));
gameUI.SetCountDownText("");
gameMode.enabled = true;
ActivateAllCars();
}