C# (CSharp) ChainOfResponsibility.Handlers BanknoteHandler.GetCashの例

コード例 #1

ファイル: BanknoteHandler.cs プロジェクト: PlumpMath/DesignPatterns-285

        public Banknote[] GetCash(CurrencyType currency, int amountOfMoney)
        {
            var currentResult = _nextHandler?.GetCash(currency, amountOfMoney);

            if (currency != Banknote.Currency)
            {
                return(currentResult);
            }

            var sum = currentResult.Sum();

            if (sum == amountOfMoney)
            {
                return(currentResult);
            }

            var residue             = amountOfMoney - sum;
            var outAmountOfBanknote = Math.Min(residue / Banknote.Value, AmountOfBanknote);

            var result = new List <Banknote>(currentResult ?? new Banknote[0]);

            for (var i = 0; i < outAmountOfBanknote; i++)
            {
                result.Add(Banknote);
            }
            return(result.ToArray());
        }