public static Card operator ++(Card card)
{
var newCard = new Card(card.Type, card.Suit);
if (newCard.Suit != CardSuit.Spades)
{
newCard.Suit++;
}
else
{
if (newCard.Type == CardType.Ace)
{
newCard.Type = CardType.Seven;
newCard.Suit = CardSuit.Clubs;
}
else
{
newCard.Type++;
newCard.Suit = CardSuit.Clubs;
}
}
return newCard;
}
private bool IsCombinationOfQueenAndKingAvailable(Card playedCard)
{
if (!this.Contains(playedCard))
{
return false;
}
if (playedCard.Type == CardType.King)
{
return this.Any(x => x.Type == CardType.Queen && x.Suit == playedCard.Suit);
}
if (playedCard.Type == CardType.Queen)
{
return this.Any(x => x.Type == CardType.King && x.Suit == playedCard.Suit);
}
return false;
}
public bool IsBeloteAllowed(Contract contract, IList<Card> currentTrickCards, Card card)
{
var belote = false;
if (contract.Type != ContractType.NoTrumps)
{
if (contract.Type == ContractType.AllTrumps)
{
if (currentTrickCards.Count == 0)
{
// The player is first
belote = true;
}
else
{
if (currentTrickCards[0].Suit == card.Suit)
{
// Belote is allowed only when playing card from the same suit
belote = true;
}
}
}
else
{
// Clubs, Diamonds, Hearts or Spades
if (card.Suit == contract.Type.ToCardSuit())
{
// Only if belote is from the trump suit
belote = true;
}
}
}
if (belote)
{
return this.IsCombinationOfQueenAndKingAvailable(card);
}
return false;
}
private void SetHandStrength(Card card, BidType bidType)
{
if (card.Type == CardType.Ten)
{
announceStrength[bidType] += 3;
}
if (card.Type == CardType.Queen || card.Type == CardType.King)
{
announceStrength[bidType] += 2;
}
if (card.Type == CardType.Ace)
{
announceStrength[bidType] += 5;
}
if (card.Type == CardType.Nine)
{
announceStrength[bidType] += 6;
}
if (card.Type == CardType.Jack)
{
announceStrength[bidType] += 10;
}
if (card.Type == CardType.Seven || card.Type == CardType.Eight)
{
announceStrength[bidType] += 1;
}
}
public void AddCard(Card card)
{
this.cards.Add(card);
}
//only when playes last
private bool WinningThinnerTactic(ref Card cardToPlay, IList<Card> allowedCards, IList<Card> currentTrickCards)
{
foreach (Card card in allowedCards.OrderBy(x => x.GetValue(this.currentContract)))
{
bool isWinner = true;
foreach (Card item in this.onTheTable.Where(x => x.Suit == card.Suit))
{
if (card.Type < item.Type)
{
isWinner = false;
break;
}
}
if (isWinner)
{
cardToPlay = card;
return true;
}
}
return false;
}
private bool ThinnerTactic(ref Card cardToPlay, IList<Card> allowedCards, IList<Card> currentTrickCards)
{
cardToPlay = allowedCards.OrderBy(x => x.GetValue(this.currentContract)).ElementAt(0);
return true;
}
//used only when starts first
private bool RussianTzarTactic(ref Card cardToPlay, IList<Card> allowedCards, IList<Card> currentTrickCards)
{
foreach (Card card in allowedCards.OrderByDescending(x => x.GetValue(this.currentContract)))
{
bool isWinner = true;
foreach (Card item in this.remainedInGame.Where(x => x.Suit == card.Suit))
{
if (card.Type < item.Type)
{
isWinner = false;
break;
}
}
if (isWinner)
{
cardToPlay = card;
return true;
}
}
return false;
}
//used only when starts first
private bool PartnerSeekingTactic(ref Card cardToPlay, IList<Card> allowedCards, IList<Card> currentTrickCards)
{
CardSuit? myPartnerSuit = null;
if (this.partnerBids.Count(x => x != BidType.AllTrumps || x != BidType.NoTrumps || x != BidType.Double || x != BidType.ReDouble) > 0)
{
myPartnerSuit = (CardSuit)((this.partnerBids.Where(x => x != BidType.AllTrumps || x != BidType.NoTrumps || x != BidType.Double || x != BidType.ReDouble).ElementAt(0)) - 1);
}
if (myPartnerSuit != null && allowedCards.Any(x => x.Suit == myPartnerSuit))
{
cardToPlay = allowedCards.Where(x => x.Suit == myPartnerSuit).OrderByDescending(x => x.GetValue(this.currentContract)).ElementAt(0);
return true;
}
if (this.myPartnerBurst != null && allowedCards.Any(x => x.Suit == this.myPartnerBurst))
{
cardToPlay = allowedCards.Where(x => x.Suit == this.myPartnerBurst).OrderByDescending(x => x.GetValue(this.currentContract)).ElementAt(0);
return true;
}
else
{
return false;
}
}
//used only when starts first, could be further improved
private bool CardBursterTactic(ref Card cardToPlay, IList<Card> allowedCards, IList<Card> currentTrickCards)
{
foreach (Card card in allowedCards.OrderByDescending(x => x.GetValue(this.currentContract)))
{
foreach (Card item in this.remainedInGame.Where(x => x.Suit == card.Suit))
{
if (card.Type < item.Type)
{
if (allowedCards.Count(x => x.Suit == card.Suit) > 1)
{
cardToPlay = allowedCards.Where(x => x.Suit == card.Suit).OrderByDescending(x => x.GetValue(this.currentContract)).ElementAt(1);
return true;
}
break;
}
}
}
return false;
}