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#include<iostream>
#include<cstdlib>
#include<iomanip>
using namespace std;
enum objectType {ROCK, PAPER, SCISSORS};
//Function prototypes
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 select 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;
cout << "Enter R or r to select Rock, P or p to select Paper, and S or s to select Scissors." << endl;
}
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;
}
}
bool validSelection(char selection)
{
switch (selection)
{
case 'R':
case 'r':
case 'P':
case 'p':
case 'S':
case 's':
return true;
default:
return false;
}
}
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;
}
int main()
{
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;
gameCount = 0;
winCount1 = 0;
winCount2 = 0;
displayRules();
cout << "Enter Y/y to play the game: ";
cin >> response;
cout << endl;
while (response == 'Y' || response == 'y')
{
cout << "Player 1 enter your choice: ";
cin >> selection1;
cout << endl;
cout << "Player 2 enter your choice: ";
cin >> selection2;
cout << endl;
if (validSelection(selection1) && validSelection(selection2))
{
play1 = retrievePlay(selection1); play2 = retrievePlay(selection2);
gameCount++;
gameResult(play1, play2, gamewinner);
if (gamewinner == 1)
winCount1++;
else if
(gamewinner == 2)
winCount2++;
}//end if
cout << "Enter Y/y to play the game: ";
cin >> response;
cout << endl;
}//end while
displayResults(gameCount, winCount1, winCount2);
return 0;
}
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