/// <summary>
/// AI Defend Logic
/// </summary>
/// <param name="river">River cards</param>
/// <param name="deck">Deck cards</param>
/// <returns>The card played, and the index of the card</returns>
public Tuple <PlayingCard, int> Defend(List <PlayingCard> river, List <PlayingCard> deck = null)
{
PlayingCard bestViableCard = null;
PlayingCard lowestTrumpCard = null;
foreach (PlayingCard card in Cards)
{
if (river.Last().Suit != TrumpSuit && card.Suit == TrumpSuit)
{
if (lowestTrumpCard == null || DurakGame.GetDurakRank(card.Rank) < DurakGame.GetDurakRank(lowestTrumpCard.Rank))
{
lowestTrumpCard = card;
}
}
else if ((card.Suit == river.Last().Suit) && DurakGame.GetDurakRank(card.Rank) > DurakGame.GetDurakRank(river.Last().Rank))
{
if (bestViableCard == null || DurakGame.GetDurakRank(card.Rank) < DurakGame.GetDurakRank(bestViableCard.Rank))
{
bestViableCard = card;
}
}
}
if (bestViableCard == null && lowestTrumpCard != null)
{
if (river.Count > 2 || (deck.Count + Cards.Count < 12))
{
bestViableCard = lowestTrumpCard;
}
}
int cardIndex = Cards.IndexOf(bestViableCard);
if (bestViableCard != null)
{
Cards.Remove(bestViableCard);
}
return(Tuple.Create(bestViableCard, cardIndex));
}
/// <summary>
/// AI Attack logic
/// </summary>
/// <param name="river">Cards in river</param>
/// <param name="deck">Unplayed cards</param>
/// <returns>The card played, and the index of the card</returns>
public Tuple <PlayingCard, int> Attack(List <PlayingCard> river = null, List <PlayingCard> deck = null)
{
PlayingCard bestViableCard = null;
PlayingCard lowestTrumpCard = null;
foreach (PlayingCard card in Cards)
{
//if theres no cards in the river
if (river.Count == 0)
{
if (card.Suit == TrumpSuit)
{
if (lowestTrumpCard == null || DurakGame.GetDurakRank(card.Rank) < DurakGame.GetDurakRank(lowestTrumpCard.Rank))
{
lowestTrumpCard = card;
}
}
else if (card.Suit != TrumpSuit)
{
if (bestViableCard == null || DurakGame.GetDurakRank(card.Rank) < DurakGame.GetDurakRank(bestViableCard.Rank))
{
bestViableCard = card;
}
}
}
else
{
foreach (PlayingCard riverCard in river)
{
if (riverCard.Rank == card.Rank)
{
if (card.Suit == TrumpSuit)
{
if (lowestTrumpCard == null || DurakGame.GetDurakRank(card.Rank) < DurakGame.GetDurakRank(lowestTrumpCard.Rank))
{
lowestTrumpCard = card;
}
}
else if (card.Suit != TrumpSuit)
{
if (bestViableCard == null || DurakGame.GetDurakRank(card.Rank) < DurakGame.GetDurakRank(bestViableCard.Rank))
{
bestViableCard = card;
}
}
}
}
}
}
// If AI has a playable trump card and no alternative plays
if (bestViableCard == null && lowestTrumpCard != null)
{
if (river.Count > 2 || (deck.Count + Cards.Count < 12))
{
bestViableCard = lowestTrumpCard;
}
}
int cardIndex = Cards.IndexOf(bestViableCard);
if (bestViableCard != null)
{
Cards.Remove(bestViableCard);
}
return(Tuple.Create(bestViableCard, cardIndex));
}
