HeadsTailsClient.cpp

#include <stdio.h> 
#include <sys/socket.h> 
#include <arpa/inet.h> 
#include <unistd.h> 
#include <string.h>
#include <iostream>
using namespace std;

class HeadsTailsClient
{
private:
    int socket;
    //RPC sends here:
    const char *EXIT_MENU = "rpc=exitmenu;";


public:

    // Constructor 
    HeadsTailsClient(int socket)
    {
        this->socket = socket;
    }


    // Destructor
    ~HeadsTailsClient() {}


    // Gets the choice from the user 
    int getUserChoice() 
    {
        int userChoice; 
        cin >> userChoice; 
        return userChoice; 
    }


    // Display menu options to the user 
    void displayMenuWithinThisGame()
    {
        cout << "\nGame Options\n";
        cout << "\nSelect from the following options\n";
        cout << "1 - make a guess\n";
        cout << "2 - exit this game\n";
        cout << "\nUser Selection: ";
    }


    // Displays the game menu and selections for the user 
    int gameMenu()
    {
        char buffer[1024] = {0};
        int choice = 0;
        cout << "Entered game" << endl;
        do
        { 
            displayMenuWithinThisGame(); 
            choice = getUserChoice();
            switch(choice)
            {
                case 1:
                {
                    playGame(socket);
                    break;
                }
                case 2:
                {
                    send(socket , EXIT_MENU, strlen(EXIT_MENU) , 0);
                    cout << "\nExiting menu\n";
                    // placeholder read
                    read(socket, buffer, 1024);
                    cout << buffer << endl;
                    return 2;
                    break;
                } 
                default:
                    break; 
                }
        } while (true);
    return 0;
    }


    // Runs the Extreme Heads or Tails game
    void playGame(int sockNum)
    {
        // Client-side display and prompt
        char buff[1024] = {0};
        cout << "\nYou have chosen Extreme Heads or Tails\nGuess the coin flip.  h)eads  t)ails.  Enter any other key to exit: ";
        char guess[2]; // must be an array ending in the null terminator
        cin >> guess;
        guess[1] = 0;  // 0 is the null terminator
        while (guess[0] == 'h' || guess[0] == 't')
        {
            // Build the flipcoin rpc: "rpc=flipcoin;guess=h"  (or "guess=t")
            strcpy(buff, "rpc=flipcoin;");
            strcat(buff, "guess=");
            strcat(buff, guess);
            strcat(buff, ";");

            // Sending game selection in buffer
            send(sockNum, buff , strlen(buff), 0 );
            
            // Clear the buffer before overwriting it with incoming buffer
            memset(buff, 0, 1024);
            // Read message
            read(sockNum, buff, 1024);
            char face[2];
            face[0] = buff[0];
            face[1] = 0;
            string coin = face[0] == 'h' ? "heads" : "tails";
            cout << "The coin shows ___" << coin << "___. " << endl;

            if (guess[0] == face[0])
            {
                cout << "You win! :)" << endl;
            }
            else
            {   // player loses coin flip
                cout << "Sorry :(" << endl;
            }
            cout << "Play again?  h)eads  t)ails.  Enter any other key to exit: ";
            cin >> guess;
        }
        cout << "That was extreme!!!" << endl;
    }
};