public void addCard(Deck deck)
{
Random rng = new Random();
int num = rng.Next(deck.getDeckSize());
Card select = deck.getCard(num);
playerHand.Add(new Card(select.getName(), select.getSuit(), select.getValue()));
deck.removeCard(select);
}
/********************************************************************************************************************************************************
******** Function: playHand
******** Description: plays a hand of blackjack, allowing user to choose when to hit, dealer hits until they reach 17
******** Parameters: deck object and an integer for the amount the user is betting
******** Pre-Conditions: user has starting capital and other game variables initialized, deck object has been created
******** Post-Conditions: flow of gameplay is printed to screen
********************************************************************************************************************************************************/
public void playHand(Deck deck, int bet)
{
//if we get to the halfway point of the deck then it is shuffled and the index is reset to avoid indexing out of range
if (deckIdx > 25)
{
deck.shuffleDeck();
deckIdx = 0;
}
bool playerBust = false;
bool addCard = true;
char input;
//the 4 cards the begin a blackjack hand are drawn and assigned
Card dealerDraw = deck.drawCard(deckIdx++);
Card playerDraw = deck.drawCard(deckIdx++);
Card dealerDrawTwo = deck.drawCard(deckIdx++);
Card playerDrawTwo = deck.drawCard(deckIdx++);
//next draw variable to be used for continued draws from the deck
Card nextDraw;
//sets the scores of the dealer and the player
playerScore = playerDraw.getValue() + playerDrawTwo.getValue();
dealerScore = dealerDraw.getValue() + dealerDrawTwo.getValue();
//displays one of the dealer cards to console
Console.WriteLine("The dealer has drawn a " + dealerDrawTwo.getName());
Console.WriteLine("Their first card is hidden");
Console.WriteLine();
//displays the two cards player has received on their draws as well as their current score
Console.WriteLine("Your hand: ");
Console.WriteLine(playerDraw.getName());
Console.WriteLine(playerDrawTwo.getName());
Console.WriteLine();
Console.WriteLine("Your current score is " + playerScore);
do
{
//asks the player if the would like to add another card to try and increase their score
Console.WriteLine("Would you like to add another card? [y/n]");
input = Console.ReadKey().KeyChar;
Console.WriteLine();
Console.WriteLine();
//if player wants another card it is drawn from the deck and both scores are now displayed
if (Char.ToLower(input) == 'y')
{
nextDraw = deck.drawCard(deckIdx++);
playerScore += nextDraw.getValue();
Console.WriteLine("You have drawn a " + nextDraw.getName());
Console.WriteLine("Player Score: " + playerScore);
Console.WriteLine("Dealer Score: " + dealerScore);
Console.WriteLine();
//if the players hand now exceeds 21 they have lost this hand to the dealer
if (playerScore > 21)
{
Console.WriteLine("You have busted, the dealer wins");
playerEarnings -= bet;
Console.WriteLine("Total bankroll: $" + playerEarnings);
Console.WriteLine();
playerBust = true;
addCard = false;
}
}
//breaks out of loop if player does not want any more cards
else if (Char.ToLower(input) == 'n')
{
addCard = false;
}
else
{
Console.WriteLine("Invalid response, please enter 'y' to add another card or 'n' to stay");
}
} while (input != Char.ToLower('y') && input != Char.ToLower('n') || addCard == true);
//only continues to dealer if the player has not busted, meaning exceeded 21
if (playerBust == false)
{
//the dealer will not aquire more cards if they have at least a 17
if (dealerScore >= 17)
{
Console.WriteLine();
evalWin(playerScore, dealerScore, bet); //evaluates both scores
}
else
{
//continues to draw cards and display current scores while the dealer has a score below 17
while (dealerScore < 17)
{
nextDraw = deck.drawCard(deckIdx++);
dealerScore += nextDraw.getValue();
Console.WriteLine("The dealer has drawn a " + nextDraw.getName());
Console.WriteLine("Player Score: " + playerScore);
Console.WriteLine("Dealer Score: " + dealerScore);
Console.WriteLine();
//if dealer accidently exceeds 21 then the player wins the hand
if (dealerScore > 21)
{
Console.WriteLine("The dealer has busted, you have won this hand!");
playerEarnings += bet;
Console.WriteLine("Total bankroll: $" + playerEarnings);
Console.WriteLine();
}
}
//evaluates both scores after dealer has aquired more cards but only if they have not exceeded 21
if (dealerScore <= 21)
{
evalWin(playerScore, dealerScore, bet);
}
}
}
}