private IEnumerator OpponentChooseGroupsForBattle()
{
ChangeGameState(GameState.OpponentsTurn);
WaitForSeconds wait = new WaitForSeconds(1f);
yield return(wait);
CardGroup[] opGroups = CardGroup.NonEmptyOpponentGroups();
opGroups[Random.Range(0, opGroups.Length)].Select(true);
yield return(wait);
CardGroup[] plGroups = CardGroup.NonEmptyPlayerGroups();
plGroups[Random.Range(0, plGroups.Length)].Select(true);
yield return(wait);
GroupsForBattleConfirmed();
}
