/* Take another card or stay on the current value. This is also
* called if the player refuses a double down to ensure that the
* main game loop can advance properly */
protected bool HitOrStay(CardList hand, int handIndex)
{
Console.WriteLine("(H)it or (S)tay on hand " + (handIndex + 1).ToString() + "?");
char userInput = Console.ReadKey(true).KeyChar.ToString().ToUpper()[0]; //Stores the next key pressed as an uppercase char
switch (userInput)
{
case 'H':
Console.WriteLine("Hit!");
hand.AddCard(Deck.DealCard()); //Adds a new card to the current hand
if (CheckHandScore(hand) >= 21)
{
frozenHands[handIndex] = true;
}
return(true);
case 'S':
Console.WriteLine("Stay.");
frozenHands[handIndex] = true; //Makes sure the hand will be skipped on future iterations
return(true);
default:
break;
}
return(false);
}
/* This method adds the values in the hand and returns it as an int.
* If the hand goes over 21 it checks to see if there is an ace present
* to adjust the score before returning it. */
protected int CheckHandScore(CardList hand)
{
int handScore = 0;
int acesPresent = 0; //Counts the aces present to adjust for busted hands
foreach (Card card in hand.Cards)
{
if (card.Value == 1)
{
acesPresent++;
handScore += 11;
}
else if (card.Value > 1 && card.Value < 10)
{
handScore += card.Value;
}
else
{
handScore += 10;
}
}
//Adjusts the score as necessary when there are one or more aces present
while (handScore > 21 && acesPresent > 0)
{
handScore -= 10;
acesPresent--;
}
return(handScore);
}
protected List <float> playerBets; //A list of the bets tied to each individual hand if the player ends up splitting them
//The BlackJackRules are initialized alongside the BlackJackTable
public BlackJackRules()
{
dealerHand = new CardList(); //Initializes the empty dealer hand
playerHands = new List <CardList>(); //Initializes an empty list of player hands
frozenHands = new List <bool>();
playerBets = new List <float>();
}
//Returns true if the hand is a blackjack otherwise returns false
protected bool CheckBlackJack(CardList hand, int handIndex)
{
if (hand.Cards.Count == 2 && CheckHandScore(hand) == 21)
{
frozenHands[handIndex] = true;
return(true);
}
return(false);
}
/* This returns true if the hand is exactly 2 cards with paired
* face values */
protected bool CheckSplit(CardList hand)
{
if (hand.Cards[0].Value == hand.Cards[1].Value)
{
return(true);
}
else
{
return(false);
}
}
//This is called by DoubleDownPrompt() when the user chooses to double down
private void DoubleDown(CardList hand, int handIndex)
{
if (playerBets[handIndex] <= HumanPlayer.Bank)
{
Console.WriteLine("Double down bet placed.\n");
playerBets[handIndex] += HumanPlayer.PlaceBet(playerBets[handIndex]);
}
else
{
Console.WriteLine("Not enough funds, bet " + HumanPlayer.Bank.ToString() + ".00 instead.\n"); //Goes all-in if the player has insufficient funds
playerBets[handIndex] += HumanPlayer.PlaceBet(HumanPlayer.Bank);
}
playerHands[handIndex].AddCard(Deck.DealCard());
frozenHands[handIndex] = true;
}
/* This method initializes the double down process. Any hand of exactly
* 2 cards can Double Down. Returning true signifies proper user input.
* Incorrect input will display an error before forcing the game to loop
* back to here. The split prompt calls this immediately if the player
* chooses not to split to avoid a never-ending loop of split prompts*/
protected bool DoubleDownPrompt(CardList hand, int handIndex)
{
Console.Write("Double down on hand " + (handIndex + 1).ToString() + "?\n(Y/N): ");
char userInput = Console.ReadKey(true).KeyChar.ToString().ToUpper()[0]; //Stores the next key pressed as an uppercase char
if (userInput == 'Y')
{
DoubleDown(hand, handIndex); //Adds a card to the hand
return(true);
}
else if (userInput == 'N')
{
Console.WriteLine("Passed on double down\n");
HitOrStay(hand, handIndex); //To avoid a never-ending loop of double down offers
return(true);
}
return(false);
}
/* This prompt is displayed to the user if their hand is valid to be
* split into two*/
protected bool SplitHandPrompt(CardList hand, int handIndex)
{
Console.Write("Split hand " + (handIndex + 1).ToString() + "?\n(Y/N): ");
char userInput = Console.ReadKey(true).KeyChar.ToString().ToUpper()[0]; //Stores the next key pressed as an uppercase char
if (userInput == 'Y')
{
SplitHand(hand, handIndex); //Splits the paired cards into two hands
return(true);
}
else if (userInput == 'N')
{
Console.WriteLine("Hand not split.\n");
DoubleDownPrompt(hand, handIndex); //To avoid a never-ending loop of hand split offers
return(true);
}
else
{
return(false);
}
}
//This performs the actual action of splitting the hand if the player so chooses.
private void SplitHand(CardList hand, int handIndex)
{
if (playerBets[handIndex] <= HumanPlayer.Bank)
{
Console.WriteLine("Split bet placed.\n");
playerBets.Add(playerBets[handIndex]);
}
else
{
Console.WriteLine("Not enough funds, bet " + HumanPlayer.Bank.ToString() + ".00 on split hand\n");
playerBets.Add(HumanPlayer.Bank);
}
playerHands.Add(new CardList());
frozenHands.Add(false);
int newHandIndex = playerHands.Count - 1; //Finds the newly created hand
playerHands[newHandIndex].AddCard(playerHands[handIndex].Cards[1]); //Copies one of the original cards
playerHands[handIndex].RemoveCard(1); //Removes the copied card
//Fill both hands
playerHands[handIndex].AddCard(Deck.DealCard());
playerHands[newHandIndex].AddCard(Deck.DealCard());
}