private static MoveInfo GetCardChoice(CrazyEightDeckManager deckManager, CrazyEightsHand hand, CardSuit wildSuit)
{
// super simple rules here
// 1. Check top card of table
// 2. Check for Crazy 8
// 3. Find number of rank matches
// 4. Find number of suit matches
// 5. if( have crazy eight ) then
// play crazy eight
// else if( rank matches > suit matches ) then
// play matching rank
// else if( suit matches > rank matches ) then
// play matching suit
// else
// play random matching suit or rank
MoveInfo info = new MoveInfo();
info.DrawCard = false;
info.WildCardUsed = false;
info.SelectedCard = null;
Card topCard = deckManager.Table[deckManager.Table.Count - 1];
CardSuit matchSuit = wildSuit == CardSuit.None ? topCard.Suit : wildSuit;
Card eightCard = hand.FindEight();
Card duece = hand.FindRank(CardRank.Two);
// rules change if top card is an eight
if (topCard.Rank == CardRank.Eight)
{
// if we can match rank, do so
// that will force a play of an eight
if (eightCard != null)
{
info.SelectedCard = eightCard;
}
else if (hand.GetSuitCount(matchSuit) > 0)
{
// get matching suit (order by rank)
info.SelectedCard = hand.Cards.Where(c => c.Suit == matchSuit).OrderBy(c1 => c1.Rank).FirstOrDefault();
}
else
{
info.DrawCard = true;
}
}
else if (topCard.Rank == CardRank.Two && duece != null)
{
// play the duece on a draw two
info.SelectedCard = duece;
}
else
{
// get suit count, without eights
var suitCount = hand.Cards.Count(c => c.Suit == matchSuit && c.Rank != CardRank.Eight);
var rankCount = hand.Cards.Count(c => c.Rank == topCard.Rank);
// no eight, free to play as you wish
if (suitCount > rankCount)
{
// get matching suit (order by rank)
info.SelectedCard =
hand.Cards
.Where(c => c.Suit == matchSuit && c.Rank != CardRank.Eight)
.OrderBy(c1 => c1.Rank)
.FirstOrDefault();
}
else if (rankCount > 0)
{
// get matching rank
info.SelectedCard =
hand.Cards
.Where(c => c.Rank == topCard.Rank)
.FirstOrDefault();
}
else
{
// no matches above
// see if we have an eight
if (hand.Cards.Count(c => c.Rank == CardRank.Eight) > 0)
{
// get first eight
info.SelectedCard = hand.Cards.Where(c => c.Rank == CardRank.Eight).FirstOrDefault();
}
else
{
info.DrawCard = true;
}
}
}
if (info.SelectedCard != null)
{
if (info.SelectedCard.Rank == CardRank.Eight)
{
info.WildCardUsed = true;
info.OverrideSuit = SelectOverrideSuit(hand);
}
}
return info;
}
private static CardSuit SelectOverrideSuit(CrazyEightsHand hand)
{
CardSuit overrideSuit = CardSuit.Diamonds;
int clubCount = hand.GetSuitCount(CardSuit.Clubs);
int heartCount = hand.GetSuitCount(CardSuit.Hearts);
int spadeCount = hand.GetSuitCount(CardSuit.Spades);
int diamondCount = hand.GetSuitCount(CardSuit.Diamonds);
if (clubCount >= heartCount && clubCount >= spadeCount && clubCount >= diamondCount)
{
overrideSuit = CardSuit.Clubs;
}
else if (heartCount >= clubCount && heartCount >= spadeCount && heartCount >= diamondCount)
{
overrideSuit = CardSuit.Hearts;
}
else if (spadeCount >= clubCount && spadeCount >= heartCount && spadeCount >= diamondCount)
{
overrideSuit = CardSuit.Spades;
}
else if (diamondCount >= clubCount && diamondCount >= heartCount && diamondCount >= spadeCount)
{
overrideSuit = CardSuit.Diamonds;
}
return overrideSuit;
}