I want to play blackjack (C++)

Question

Hi, I will say I'm good at school C++ what libraries should i need to learn to make a working code?

Answer 1

To be able to create a C++ program, you'll need to arm yourself with the following:

• C++ tutorials, like
  • https://cplusplus.com/doc/tutorial/ or
  • https://www.w3schools.com/cpp/
• C++ reference manual

Follow the tutorials to learn the basics. Use the reference manual to see how each function should be used correctly.

And of course, use a search engine to look for problems you run into, chances are someone else has come across the same problem and has a solution online.

Good luck!

Answer 2

#include <iostream>
#include <vector>
#include <algorithm>
#include <random>
#include <ctime>
#include <map>

using namespace std;

struct Card {
    string suit;
    string rank;
};

class Deck {
private:
    vector<Card> cards;
public:
    Deck() {
        string suits[] = {"Hearts", "Diamonds", "Clubs", "Spades"};
        string ranks[] = {"2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A"};
        
        for (const auto& suit : suits) {
            for (const auto& rank : ranks) {
                cards.push_back({suit, rank});
            }
        }
        shuffleDeck();
    }

    void shuffleDeck() {
        random_device rd;
        mt19937 g(rd());
        shuffle(cards.begin(), cards.end(), g);
    }

    Card drawCard() {
        if (!cards.empty()) {
            Card drawn = cards.back();
            cards.pop_back();
            return drawn;
        }
        return {"", ""};
    }
};

class PokerGame {
private:
    Deck deck;
    vector<Card> playerHand;
    vector<vector<Card>> aiHands;
    vector<Card> communityCards;
    int playerChips;
    vector<int> aiChips;
    int pot;
    bool playerFolded;
    vector<bool> aiFolded;
    int numAI;

public:
    PokerGame(int numAIPlayers = 2) : playerChips(1000), pot(0), playerFolded(false), numAI(numAIPlayers) {
        aiChips.resize(numAI, 1000);
        aiHands.resize(numAI);
        aiFolded.resize(numAI, false);
    }

    void dealInitialCards() {
        playerHand.push_back(deck.drawCard());
        playerHand.push_back(deck.drawCard());
        for (int i = 0; i < numAI; i++) {
            aiHands[i].push_back(deck.drawCard());
            aiHands[i].push_back(deck.drawCard());
        }
    }

    void dealFlop() {
        for (int i = 0; i < 3; i++) {
            communityCards.push_back(deck.drawCard());
        }
    }

    void dealTurnOrRiver() {
        communityCards.push_back(deck.drawCard());
    }

    void showHand(const vector<Card>& hand, const string& owner) {
        cout << owner << "'s hand: " << endl;
        for (const auto& card : hand) {
            cout << card.rank << " of " << card.suit << endl;
        }
    }

    void showCommunityCards() {
        cout << "\nCommunity Cards: " << endl;
        for (const auto& card : communityCards) {
            cout << card.rank << " of " << card.suit << endl;
        }
    }

    void bettingRound(const string& stage) {
        cout << "\n" << stage << " Betting Round: " << endl;
        if (!playerAction()) return;
        aiActions();
        showCommunityCards();
    }

    bool playerAction() {
        int choice;
        cout << "You have " << playerChips << " chips. Choose an action: (1) Bet (2) Fold (3) Check: ";
        cin >> choice;
        if (choice == 2) {
            cout << "You folded! AIs continue playing." << endl;
            playerFolded = true;
            return false;
        }
        if (choice == 3) {
            cout << "You checked." << endl;
            return true;
        }
        int bet;
        cout << "Enter bet amount: ";
        cin >> bet;
        if (bet > playerChips) {
            cout << "You don't have enough chips!" << endl;
            return false;
        }
        playerChips -= bet;
        pot += bet;
        cout << "You bet " << bet << " chips. Pot is now " << pot << " chips." << endl;
        return true;
    }

    void aiActions() {
        for (int i = 0; i < numAI; i++) {
            if (aiFolded[i]) continue;
            if (rand() % 100 < 30) {
                cout << "AI " << i + 1 << " folded!" << endl;
                aiFolded[i] = true;
                continue;
            }
            int bet = min(50, aiChips[i]);
            aiChips[i] -= bet;
            pot += bet;
            cout << "AI " << i + 1 << " bets " << bet << " chips. Pot is now " << pot << " chips." << endl;
        }
    }

    string determineWinner() {
        if (playerFolded) return "AIs win by default.";
        
        int playerScore = rand() % 100;
        vector<int> aiScores(numAI);
        for (int i = 0; i < numAI; i++) {
            if (!aiFolded[i]) aiScores[i] = rand() % 100;
            else aiScores[i] = -1;
        }

        cout << "\nYour hand strength: " << playerScore << endl;
        for (int i = 0; i < numAI; i++) {
            if (!aiFolded[i]) {
                cout << "AI " << i + 1 << " hand strength: " << aiScores[i] << endl;
            }
        }

        int highestScore = playerScore;
        string winner = "You win the pot!";
        for (int i = 0; i < numAI; i++) {
            if (!aiFolded[i] && aiScores[i] > highestScore) {
                highestScore = aiScores[i];
                winner = "AI " + to_string(i + 1) + " wins the pot!";
            }
        }
        return winner;
    }

    void play() {
        dealInitialCards();
        showHand(playerHand, "Your");
        cout << numAI << " AI players have been dealt cards." << endl;
        
        dealFlop();
        bettingRound("Flop");
        
        dealTurnOrRiver();
        bettingRound("Turn");
        
        dealTurnOrRiver();
        bettingRound("River");
        
        for (int i = 0; i < numAI; i++) {
            if (!aiFolded[i]) showHand(aiHands[i], "AI " + to_string(i + 1));
        }
        
        cout << "\nFinal Pot: " << pot << " chips." << endl;
        cout << determineWinner() << endl;
    }
};

int main() {
    srand(time(0));
    PokerGame game(3); // Adjust number of AI players
    game.play();
    return 0;
}