Dominion.PlayerState.RequestPlayerChooseBetween C# (CSharp) Method

        internal PlayerActionChoice RequestPlayerChooseBetween(GameState gameState, IsValidChoice acceptableChoice)
        {
            PlayerActionChoice choice = actions.ChooseBetween(gameState, acceptableChoice);

            if (!acceptableChoice(choice))
            {
                throw new Exception("Player made in invalid action choice");
            }

            return choice;
        }

        public override void DoSpecializedAction(PlayerState currentPlayer, GameState gameState)
        {
            PlayerActionChoice actionChoice = currentPlayer.RequestPlayerChooseBetween(
                gameState,
                acceptableChoice => acceptableChoice == PlayerActionChoice.GainCard ||
                                    acceptableChoice == PlayerActionChoice.PlusCoin ||
                                    acceptableChoice == PlayerActionChoice.Trash);

            switch (actionChoice)
            {
                case PlayerActionChoice.GainCard: currentPlayer.GainCardFromSupply(Silver.card, gameState); break;
                case PlayerActionChoice.PlusCoin: currentPlayer.AddCoins(1); break;
                case PlayerActionChoice.Trash: currentPlayer.RequestPlayerTrashCardsFromHand(gameState, 1, false); break;
                default: throw new Exception("Invalid case");
            }
        }