//************************************************************* // Author: D.S.
ID: 3628900 • Letter: #
Question
//*************************************************************
// Author: D.S. Malik
//
// Program: Rock, Paper, and Scissors
// This program plays the game of rock, paper, and scissors.
//*************************************************************
#include <iostream>
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;
}
//**
please can anyone modify this code to play again computer i would really appreciate it.
Explanation / Answer
please rate - thanks
I made the simplist change possible
//*************************************************************
// Author: D.S. Malik
//
// Program: Rock, Paper, and Scissors
// This program plays the game of rock, paper, and scissors.
//*************************************************************
#include <iostream>
#include <cstdlib>
#include <ctime>
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()
{char choice[]={'r','p','s'};
srand(time(0));
//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;
selection2=choice[rand()%3];
//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;
}
//**
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