PokerSharp/CardBuilder.cs at csharp-conversion · danielmiladinov/PokerSharp · GitHub

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using System;

class CardBuilder {

    public Card fromString(string cardString) {
        var cardStringAsArray = cardString.Split("-".ToCharArray());

        if (cardStringAsArray.Length != 2) {
            throw new CardBuilderException("Invalid card string");
        }

        var faceValue = cardStringAsArray[0];
        var suit = cardStringAsArray[1];

        var faceValueIntValue = convertValueFromLetterToNumber(faceValue);

        if (faceValueIntValue > Card.ACE || faceValueIntValue < 2) {
            throw new CardBuilderException("Invalid face value");
        }

        Card c;

        switch (suit) {
            case "D":
                c = new Diamonds(faceValueIntValue);
                break;

            case "H":
                c = new Hearts(faceValueIntValue);
                break;

            case "S":
                c = new Spades(faceValueIntValue);
                break;

            case "C":
                c = new Clubs(faceValueIntValue);
                break;

            default:
                throw new CardBuilderException("Invalid suit");
        }

        return c;
    }

    private int convertValueFromLetterToNumber(string faceValue) {
        int faceValueIntValue = 0;

        switch (faceValue) {
            case "A":
                faceValueIntValue = Card.ACE;
                break;

            case "J":
                faceValueIntValue = Card.JACK;
                break;

            case "Q":
                faceValueIntValue = Card.QUEEN;
                break;

            case "K":
                faceValueIntValue = Card.KING;
                break;

            default:
                int parsed = 0;

                if (Int32.TryParse(faceValue, out parsed)) {
                    faceValueIntValue = parsed;
                }
                break;
        }

        return faceValueIntValue;
    }
}