I am interested in having three games between two players and if one of the players wins at Rock, paper, scissors twice, then I would either end the game while printing the results that the game is finished or begin a new game while printing out who won in the first game of three rounds. I am just wanting to know how to do that.

In essence, how do I change the code to make it a best 2 out of 3 game?

#include

using namespace std;

enum objectType{ROCK, PAPER, SCISSORS};

//Function prototypes

void displayRules();

objectType retrievePlay(char selection);

bool validSelection(char selection);

void convertEnum(objectType object);

objectType winningObject(objectType play1, objectType play2);

void gameResult(objectType play1, objectType play2,

int& winner);

void displayResults(int gCount, int wCount1, int wCount2);

int main()

{

//Step 1

int gameCount; //variable to store the number of

//games played

int winCount1; //variable to store the number of games

//won by player 1

int winCount2; //variable to store the number of games

//won by player 2

int gamewinner;

char response; //variable to get the user's response to

//play the game

char selection1;

char selection2;

objectType play1; //player1's selection

objectType play2; //player2's selection

//Initialize variables; Step 2

gameCount = 0;

winCount1 = 0;

winCount2 = 0;

displayRules(); //Step 3

cout << "Enter Y/y to play the game: "; //Step 4

cin >> response; //Step 5

cout << endl;

while (response == 'Y' || response == 'y') //Step 6

{

cout << "Player 1 enter your choice: "; //Step 6a

cin >> selection1; //Step 6b

cout << endl;

cout << "Player 2 enter your choice: "; //Step 6c

cin >> selection2; //Step 6d

cout << endl;

//Step 6e

if (validSelection(selection1)

&& validSelection(selection2))

{

play1 = retrievePlay(selection1);

play2 = retrievePlay(selection2);

gameCount++; //Step 6e.i

gameResult(play1, play2, gamewinner); //Step 6e.ii

if (gamewinner == 1) //Step 6e.iii

winCount1++;

else if (gamewinner == 2)

winCount2++;

}//end if

cout << "Enter Y/y to play the game: "; //Step 6f

cin >> response; //Step 6g

cout << endl;

}//end while

displayResults(gameCount, winCount1,

winCount2); //Step 7

return 0;

}//end main

void displayRules()

{

cout << " Welcome to the game of Rock, Paper, "

<< "and Scissors." << endl;

cout << " This is a game for two players. For each "

<< "game, each" << endl;

cout << " player selects one of the objects, Rock, "

<< "Paper or Scissors." << endl;

cout << " The rules for winning the game are: " << endl;

cout << "1. If both players selects the same object, it "

<< "is a tie." << endl;

cout << "2. Rock breaks Scissors: So player who selects "

<< "Rock wins." << endl;

cout << "3. Paper covers Rock: So player who selects "

<< "Paper wins." << endl;

cout << "4. Scissors cuts Paper: So player who selects "

<< "Scissors wins." << endl << endl;

cout << "Enter R or r to select Rock, P or p to select "

<< "Paper, and S or s to select Scissors." << endl;

}

bool validSelection(char selection)

{

switch (selection)

{

case 'R':

case 'r':

case 'P':

case 'p':

case 'S':

case 's':

return true;

default:

return false;

}

}

objectType retrievePlay(char selection)

{

objectType object;

switch (selection)

{

case 'R':

case 'r':

object = ROCK;

break;

case 'P':

case 'p':

object = PAPER;

break;

case 'S':

case 's':

object = SCISSORS;

}

return object;

}

void convertEnum(objectType object)

{

switch (object)

{

case ROCK:

cout << "Rock";

break;

case PAPER:

cout << "Paper";

break;

case SCISSORS:

cout << "Scissors";

}

}

objectType winningObject(objectType play1, objectType play2)

{

if ((play1 == ROCK && play2 == SCISSORS)

|| (play2 == ROCK && play1 == SCISSORS))

return ROCK;

else if ((play1 == ROCK && play2 == PAPER)

|| (play2 == ROCK && play1 == PAPER))

return PAPER;

else

return SCISSORS;

}

void gameResult(objectType play1, objectType play2,

int& winner)

{

objectType winnerObject;

if (play1 == play2)

{

winner = 0;

cout << "Both players selected ";

convertEnum(play1);

cout << ". This game is a tie." << endl;

}

else

{

winnerObject = winningObject(play1, play2);

//Output each player's choice

cout << "Player 1 selected ";

convertEnum(play1);

cout << " and player 2 selected ";

convertEnum(play2);

cout << ". ";

//Decide the winner

if (play1 == winnerObject)

winner = 1;

else if (play2 == winnerObject)

winner = 2;

//Output the winner

cout << "Player " << winner << " wins this game."

<< endl;

}

}

void displayResults(int gCount, int wCount1, int wCount2)

{

cout << "The total number of plays: " << gCount

<< endl;

cout << "The number of plays won by player 1: "

<< wCount1 << endl;

cout << "The number of plays won by player 2: "

<< wCount2 << endl;

}