IEnumerator ResetButtons()
{
bool[] resetButtons = { false, false, false, false };
yield return(new WaitForSeconds(5));
for (int i = 0; i < 4; ++i)
{
int randomNumber;
do
{
randomNumber = Random.Range(0, 4);
} while (resetButtons[randomNumber]);
manager.ResetButton(randomNumber);
resetButtons[randomNumber] = true;
yield return(new WaitForSeconds(4));
}
}