public IEnumerable<Card> Match(IEnumerable<Card> cardsToMatch)
{
var nofAKind = new NofAKind();
var threeOfAKind = nofAKind.Find(cardsToMatch, 3);
if (threeOfAKind != null)
{
var restOfTheCards = cardsToMatch.Except(threeOfAKind);
IEnumerable<Card> currentPair, highestPair = null;
while ((currentPair = nofAKind.Find(restOfTheCards, 2)) != null)
{
if (highestPair == null
|| currentPair.First().Rank > highestPair.First().Rank)
{
highestPair = currentPair;
restOfTheCards = restOfTheCards.Except(currentPair);
}
}
return highestPair != null ? threeOfAKind.Union(highestPair) : null;
}
return null;
}
public IEnumerable<Card> Match(IEnumerable<Card> cardsToMatch)
{
var nofAKind = new NofAKind();
var three = nofAKind.Find(cardsToMatch, 3);
if (three != null)
{
var nextThree = nofAKind.Find(cardsToMatch.Except(three), 3);
return nextThree ?? three;
}
return null;
}
public IEnumerable<Card> Match(IEnumerable<Card> cardsToMatch)
{
var nofAKind = new NofAKind();
var firstPair = nofAKind.Find(cardsToMatch, 2);
if (firstPair == null)
{
return null;
}
var secondPair = nofAKind.Find(cardsToMatch.Except(firstPair), 2);
if (secondPair == null)
{
return null;
}
return firstPair.Union(secondPair);
}