Question

Write in C++

Abstract/Virtual Rock Paper Scissors

Create an abstract Player class that consists of private data for name, selection, wins, and losses. It must have a non-default constructor that requires name. It may not contain a default constructor. Create overloaded functions for the ++ and - - operator. The overloaded ++operator will add to the number of wins, while the - - operator will add to the losses.

You will create two different child classes of player, Human and Computer. Neither of which will have any private data, as they will use the parent’s data. Both will contain a virtual function called makeSelection() that will determine and set the selection for the particular player.

Your main() program will contain a NON-member function called playGame() that will take in your two players. You should ask the user if they would like to pay against another human, or a computer, or if they would like to see two computers play.

You will then need to create the appropriate objects and start the game play. After each round, you must display the number of wins and losses for each player and continue playing the game until the user decides to quit.

Answer 1

Hi, here is the solution. Try it out and let me know if you need any changes.

Player.h

/* * Player.h * * Created on: Jul 20, 2020 * Author: Casper */ #ifndef PLAYER_H_ #define PLAYER_H_ #include <iostream> #include <cstdlib> #include <ctime> using namespace std; class Player { private:    string name;    char selection;    int wins;    int losses; public:    Player(string name);    virtual char makeSelection() = 0;    int getLosses() const    {        return losses;    }    void setLosses(int losses)    {        this->losses = losses;    }    const string& getName() const    {        return name;    }    void setName(const string &name)    {        this->name = name;    }    char getSelection() const    {        return selection;    }    int getWins() const    {        return wins;    }    void setWins(int wins)    {        this->wins = wins;    }    void setSelection(char selection)    {        this->selection = selection;    }    virtual ~Player(){};    Player& operator++(); // Prefix increment    Player& operator--(); // Prefix decrement }; class Human: public Player { public:    char makeSelection();    Human(string name);    ~Human()    {    } }; class Computer: public Player { public:    char makeSelection();    Computer(string name);    ~Computer()    {    } }; #endif /* PLAYER_H_ */

Player.cpp

/* * Player.cpp * * Created on: Jul 20, 2020 * Author: Casper */ #include "Player.h" Player::Player(string name) {    this->name = name;    this->wins = 0;    this->losses= 0;    this->selection = ' '; } Player& Player::operator ++() {    this->wins++;    return *this; } Player& Player::operator --() {    this->losses++;    return *this; } Human::Human(string name):Player(name) { } Computer::Computer(string name):Player(name) { } char Human::makeSelection() {    char s;    bool exit = false;    while(!exit)    {        cout<<"Enter your choice Rock(R)/Paper(P)/Scissors(S): ";        cin>> s;        s = toupper(s);        if( s == 'S'||s == 'R'||s == 'P')        {            this->setSelection(toupper(s));            exit = true;        }        else        {            cout<<"Not a valid selection."<<endl;        }    }    return this->getSelection(); } char Computer::makeSelection() {    srand(time(0));    char selections[3] = {'R','P','S'};    this->setSelection(selections[rand()%3]);    return this->getSelection(); }

Game.cpp

/* * Game.cpp * * Created on: Jul 20, 2020 * Author: Casper */ #include "Player.h" void playGame(Player & p1, Player & p2) {    char s1,s2;    s1 = p1.makeSelection();    s2 = p2.makeSelection();    if(s1 != s2)    {        if(s1 == 'R')        {            if(s2 == 'P')            {                --p1;                ++p2;            }            else            {                ++p1;                --p2;            }        }        else if(s1=='S')        {            if(s2 == 'P')            {                ++p1;                --p2;            }            else            {                --p1;                ++p2;            }        }        else if(s1=='P')        {            if(s2 == 'R')            {                ++p1;                --p2;            }            else            {                --p1;                ++p2;            }        }    } } int main() {    Human * p1;    Player *p2;    bool exit = false;    char choice;    string name;    int round = 0;    cout << "Enter your name: ";    cin >> name;    // set p1 as human player    p1 = new Human(name);    while(!exit)    {        cout << "Play against Human?(Y/N) : ";        cin >> choice;        switch(toupper(choice))        {        case 'Y':            cout<<"Enter opponent name: ";            cin >> name;            //set p2 as human player            p2 = new Human(name);            exit = true;            break;        case 'N':            // set p2 as computer player            p2 =new Computer("COMPUTER");            exit = true;            break;        default:            cout<<"Invalid input. Try again!"<<endl;            break;        }    }    exit = false;    do    {        round++;        playGame(*p1,*p2);        cout<<"-----------------------------------------------"<<endl;        cout<<"Stats after round "<<round<<endl;        cout<<"-----------------------------------------------"<<endl;        cout<<"Player 1 - "<<p1->getSelection()<<endl;        cout<<"Player 2 - "<<p2->getSelection()<<endl;        cout<<p1->getName()<<" Wins("<<p1->getWins()<<") Losses("<<p1->getLosses()<<")"<<endl;        cout<<p2->getName()<<" Wins("<<p2->getWins()<<") Losses("<<p2->getLosses()<<")"<<endl;        cout<<"-----------------------------------------------"<<endl;        cout<<"Press Q to exit or any key to play next round";        cin >> choice;    }while(choice!='q' && choice !='Q'); }