protected override void SetDealerProbMap(Hand dealerHand, Deck deck, decimal probability)
{
// if hand total is over 21, the dealer busts
if (dealerHand.TotalValue > 21)
{
dealerProbDict[PossibleOutcome.BUST] += probability;
return;
}
// if the dealer has a 17 (not COULD have), then they cannot get anything else (must stick)
if (dealerHand.TotalValue >= 17 && probability == 1)
{
PossibleOutcome outcome = Deck.PossibleOutcomeValues[dealerHand.TotalValue];
dealerProbDict[outcome] += probability;
return;
}
// calculate all possibilities if player hits
foreach (CardName cardName in deck.GetRemainingCards())
{
// if there are none of this card left, it cannot appear
int remainingCardCount = deck.CardCountDict[cardName];
if (remainingCardCount <= 0)
{
continue;
}
// update temporary dealer hand and deck
Card card = new Card(cardName);
// the probability of getting a card AT THIS POINT,
// is the normal prob of selecting the card, multiplied by probability of getting to this point
decimal cardProb = deck.GetCardProb(cardName) * probability;
// add to new hand
Hand handCopy = dealerHand.Clone();
handCopy.AddCard(card);
// remove from new deck
Deck deckCopy = deck.Clone();
deckCopy.RemoveCard(cardName);
if (handCopy.TotalValue > 21)
{
dealerProbDict[PossibleOutcome.BUST] += cardProb;
}
else if (handCopy.TotalValue >= 17)
{
PossibleOutcome outcome = Deck.PossibleOutcomeValues[handCopy.TotalValue];
dealerProbDict[outcome] += cardProb;
continue;
}
// update probability with new card and new probability
SetDealerProbMap(handCopy, deckCopy, cardProb);
}
}
protected decimal GetProbPushBeforeHit(Hand playerHand)
{
if (playerHand.TotalValue > 21 || playerHand.TotalValue < 17)
{
return((decimal)0);
}
PossibleOutcome outcome = Deck.PossibleOutcomeValues[playerHand.TotalValue];
return(dealerProbDict[outcome]);
}
// the probability a player wins is:
// 1) if the dealer busts AND the player doesn't
// 2) if the dealer has a higher hand than the dealer
// - the dealer must have at least a 16, so we need to calculate prob of each value between 16 and 21
protected override void SetPlayerProbMap(Hand playerHand, Deck deck, decimal probability)
{
if (playerHand.TotalValue >= 21)
{
return;
}
// calculate all possibilities if player hits
foreach (CardName cardName in deck.GetRemainingCards())
{
int remainingCardCount = deck.CardCountDict[cardName];
// if there are none of this card left, it cannot appear
if (remainingCardCount <= 0)
{
continue;
}
// update temporary dealer hand and deck
Card card = new Card(cardName);
// add to new hand
Hand handCopy = playerHand.Clone();
handCopy.AddCard(card);
if (handCopy.TotalValue > 21)
{
continue;
}
// remove from new deck
Deck deckCopy = deck.Clone();
deckCopy.RemoveCard(cardName);
// the probability of getting a card AT THIS POINT,
// is the normal prob of selecting the card, multiplied by probability of getting to this point
decimal cardProb = deck.GetCardProb(cardName) * probability;
playerProbDict[PossibleOutcome.NOBUST] += cardProb;
if (handCopy.TotalValue >= 17)
{
PossibleOutcome outcome = Deck.PossibleOutcomeValues[handCopy.TotalValue];
playerProbDict[outcome] += cardProb;
}
// update probability with new card and new probability
SetPlayerProbMap(handCopy, deckCopy, cardProb);
}
}
protected override void SetDealerProbMap(Hand dealerHand, Deck deck, decimal probability)
{
// if hand total is over 21, the dealer busts
if (dealerHand.TotalValue > 21)
{
dealerProbDict[PossibleOutcome.BUST] += probability;
return;
}
// if the dealer has a 17, then they cannot get anything else (must stick)
if (dealerHand.TotalValue >= 17)
{
PossibleOutcome outcome = Deck.PossibleOutcomeValues[dealerHand.TotalValue];
dealerProbDict[outcome] += probability;
return;
}
// calculate the probabilty of getting each value 17-21
List <int> values = new List <int> {
17, 18, 19, 20, 21
};
foreach (int i in values)
{
PossibleOutcome outcome = Deck.PossibleOutcomeValues[i];
dealerProbDict[outcome] = probDict[i - dealerHand.TotalValue];
}
// calculate the probability the dealer busts
foreach (int val in probDict.Keys.ToList())
{
if (dealerHand.TotalValue + val <= 21)
{
continue;
}
dealerProbDict[PossibleOutcome.BUST] += probDict[val];
}
}
// the probability a player wins is:
// 1) if the dealer busts AND the player doesn't
// 2) if the dealer has a higher hand than the dealer
// - the dealer must have at least a 16, so we need to calculate prob of each value between 16 and 21
protected override void SetPlayerProbMap(Hand playerHand, Deck deck, decimal probability)
{
// calculate the probability the player hits and gets less than 17
foreach (int val in probDict.Keys.ToList())
{
if (playerHand.TotalValue + val >= 17)
{
continue;
}
playerProbDict[PossibleOutcome.NOBUST] += probDict[val];
}
// calculate the probabilty of getting each value 17-21
List <int> values = new List <int> {
17, 18, 19, 20, 21
};
foreach (int i in values)
{
PossibleOutcome outcome = Deck.PossibleOutcomeValues[i];
playerProbDict[outcome] = (playerHand.TotalValue < i) ? probDict[i - playerHand.TotalValue] : 0;
}
}