public static Flush TryGetFlush(Card[] cards)
{
var first = cards.First();
return cards.Skip(1).All(c => c.Suit == first.Suit)
? new Flush(cards.Select(c => c.CardNomination).ToArray())
: null;
}
public static Flush TryGetFlush(Card[] cards)
{
return cards.Skip(1).Aggregate(
new {Flush = true, cards.First().Suit},
(acc, card) => new { Flush = acc.Flush && acc.Suit == card.Suit, card.Suit }
).Flush
? new Flush(cards.Select(c => c.CardNomination).ToArray())
: null;
}
public static Straight TryGetStraight(Card[] cards)
{
var first = cards.First();
return cards.Skip(1).Aggregate(new {IsStraight = true, Card = first}, (acc, card) => new
{
IsStraight = acc.IsStraight && acc.Card.CardNomination.Value - card.CardNomination.Value == 1, Card = card
}).IsStraight
? new Straight(first.CardNomination)
// A,5,4,3,2
: cards.Select(c => c.CardNomination)
.Except(new CardNomination[] { new MajorCardNomination(MajorCardType.Ace), new MinorCardNomination(5), new MinorCardNomination(4), new MinorCardNomination(3), new MinorCardNomination(2) }).Any()
? null
: new Straight(new MinorCardNomination(5));
}
private static Hand GetHand(Card[] cardSet)
{
return
new Hand(CombinationFactory.TryGetRoyalFlush(cardSet))
.Or(() => new Hand(CombinationFactory.TryGetStraightFlush(cardSet)))
.Or(()=> CreateHand(CombinationFactory.TryGetFourOfAKind(cardSet)))
.Or(() => new Hand(CombinationFactory.TryGetFullHouse(cardSet)))
.Or(() => new Hand(CombinationFactory.TryGetFlush(cardSet)))
.Or(() => new Hand(CombinationFactory.TryGetStraight(cardSet)))
.Or(() => CreateHand(CombinationFactory.TryGetThreeOfAKind(cardSet)))
.Or(() => CreateHand(CombinationFactory.TryGetTwoPairs(cardSet)))
.Or(() => CreateHand(CombinationFactory.TryGetPair(cardSet)))
.Or(() => new Hand(null, new OddCards(cardSet.Select(c => c.CardNomination).ToArray())));
}