public List <Card> RemovePairs()
{
CountFlush();
var newHand = new FiveCardHand {
Cards = new List <Card> {
Cards[0], Cards[1], Cards[2], Cards[3], Cards[4]
}
};
for (int i = Cards.Count - 2; i >= 0; i--)
{
if (Cards[i].Rank == Cards[i + 1].Rank)
{
if (Cards[i].Suit == GetMaxSuit())
{
newHand.Cards.RemoveAt(i + 1);
}
else
{
newHand.Cards.RemoveAt(i);
}
}
}
return(newHand.Cards);
}
private static bool IsStraightFlush(FiveCardHand h)
{
if (IsStraight(h) && IsFlush(h))
{
return(true);
}
return(false);
}
private static bool IsFlush(FiveCardHand h)
{
if (h.Cards[0].Suit == h.Cards[1].Suit &&
h.Cards[1].Suit == h.Cards[2].Suit &&
h.Cards[2].Suit == h.Cards[3].Suit &&
h.Cards[3].Suit == h.Cards[4].Suit)
{
return(true);
}
return(false);
}
// must be flush and straight and
// be certain cards. No wonder I have
private static bool IsRoyalFlush(FiveCardHand h)
{
if (IsStraight(h) && IsFlush(h) &&
h.Cards[0].Rank == Rank.Ten &&
h.Cards[1].Rank == Rank.Jack &&
h.Cards[2].Rank == Rank.Queen &&
h.Cards[3].Rank == Rank.King &&
h.Cards[4].Rank == Rank.Ace)
{
return(true);
}
return(false);
}
/*
* two choices here, the pair is in the
* front of the hand or in the back of the
* hand, because it is sorted
*/
private static bool IsFullHouse(FiveCardHand h)
{
if (h.Cards[0].Rank == h.Cards[1].Rank &&
h.Cards[2].Rank == h.Cards[3].Rank &&
h.Cards[3].Rank == h.Cards[4].Rank)
{
return(true);
}
if (h.Cards[0].Rank == h.Cards[1].Rank &&
h.Cards[1].Rank == h.Cards[2].Rank &&
h.Cards[3].Rank == h.Cards[4].Rank)
{
return(true);
}
return(false);
}
/*
* three choices here, first three cards match
* middle three cards match or last three cards
* match
*/
private static bool IsThreeOfAKind(FiveCardHand h)
{
if (h.Cards[0].Rank == h.Cards[1].Rank &&
h.Cards[1].Rank == h.Cards[2].Rank)
{
return(true);
}
if (h.Cards[1].Rank == h.Cards[2].Rank &&
h.Cards[2].Rank == h.Cards[3].Rank)
{
return(true);
}
if (h.Cards[2].Rank == h.Cards[3].Rank &&
h.Cards[3].Rank == h.Cards[4].Rank)
{
return(true);
}
return(false);
}
public static Pokerscore Score(FiveCardHand h)
{
h.Sort();
if (IsRoyalFlush(h))
{
return(Pokerscore.RoyalFlush);
}
if (IsStraightFlush(h))
{
return(Pokerscore.StraightFlush);
}
if (IsFourOfAKind(h))
{
return(Pokerscore.FourOfAKind);
}
if (IsFullHouse(h))
{
return(Pokerscore.FullHouse);
}
if (IsFlush(h))
{
return(Pokerscore.Flush);
}
if (IsStraight(h))
{
return(Pokerscore.Straight);
}
if (IsThreeOfAKind(h))
{
return(Pokerscore.ThreeOfAKind);
}
if (IsTwoPair(h))
{
return(Pokerscore.TwoPair);
}
if (IsPair(h))
{
return(Pokerscore.Pair);
}
return(Pokerscore.None);
}
// make sure the rank differs by one
// we can do this since the Cards is
// sorted by this point
private static bool IsStraight(FiveCardHand h)
{
if (h.Cards[0].Rank == h.Cards[1].Rank - 1 &&
h.Cards[1].Rank == h.Cards[2].Rank - 1 &&
h.Cards[2].Rank == h.Cards[3].Rank - 1 &&
h.Cards[3].Rank == h.Cards[4].Rank - 1)
{
return(true);
}
// special case cause ace ranks lower
// than 10 or higher
if (h.Cards[4].Rank == Rank.Ace &&
h.Cards[0].Rank == Rank.Two &&
h.Cards[1].Rank == Rank.Three &&
h.Cards[2].Rank == Rank.Four &&
h.Cards[3].Rank == Rank.Five)
{
return(true);
}
return(false);
}
