Comp Prog 21 Game

[wolfyy1]

/* Game of 21 program */
#include <iostream.h>
#include <stdlib.h>
#include "utility.h"
#include <time.h>
int DealCard();
int DealUser();
int DealComputer();
int FindWinner(int UserSum, int ComputerSum);
void ReportResult(int Result);
int PlayGame();
void UpdateCount(int Result, int &Wins, int &Losses, int &Draws);
char AskRepeat();
void Report(int Wins, int Losses, int Draws);

int main()
{
srand(time(NULL));
int Wins=0, Losses=0, Draws=0;
char Answer;
do{
int Result; //0=draw 1=user win 2=computer win
Result=PlayGame();
UpdateCount(Result, Wins, Losses, Draws);
Answer=AskRepeat();
} while((Answer!='N')&&(Answer!='n'));
Report(Wins, Losses, Draws);
cout<<Wins<<endl;
return(0);
}
//-------------------------------------------------------------------
int DealCard()
/*Returns a random card value
Post: A value from 1 to 10 returned */

{
int card=rand()%13+1;
if (card>10)
card=10;
return (card);
}
//-------------------------------------------------------------------
int DealUser()
/*Asks the user how many cards are desired, and deals them,
returning the sum
Post: Cards have been displayed, and their sum is returned */
{
char answer;
int NumCard;
int CardCount, Card, SumCards=0;
NumCard=2;
cout<<"You: ";
for(CardCount=0;CardCount<NumCard; CardCount++) {
Card=DealCard();
cout<<Card<<" | ";
SumCards+=Card; }
cout<<"="<<SumCards<<endl;

do{
cout<<"Would you like another card?"<<endl;
cin>>answer;
Card=DealCard();
SumCards=SumCards+Card;
cout<<Card<<" "<<endl;
}

while((answer=='Y')&&(answer=='y')&&(SumCards<16)) ;

cout<<"You: "<<SumCards<<endl;
return(SumCards);
}
//-------------------------------------------------------------------
int DealComputer()
/*DElas cards to the computer and returns the sum
Post: Three cards have been displayed, and their sum returned */
{
const int NumCards=3;
cout<<"Computer: ";
int CardCount, Card, SumCards=0;
for(CardCount=0; CardCount<NumCards; CardCount++) {
DealCard();
Card=DealCard();
cout<<Card<<" | ";
SumCards+=Card;
}
cout<<"="<<SumCards<<endl;
return(SumCards);
}
//-------------------------------------------------------------------
int FindWinner(int UserSum, int ComputerSum)
/*Determines winner and returns code indicating winner.
Post: Winner determined according to rules in the specification and
code returned indicating the winner: 0=Draw 1=User Won
2=Computer Won */
{
const int Limit=21;
if((UserSum==ComputerSum)||((UserSum>Limit)
&&(ComputerSum>Limit)))
return(0);
else if((ComputerSum>Limit)||((UserSum>ComputerSum)
&&(UserSum<=Limit)))
return(1);
else
return(2);
}
//-------------------------------------------------------------------
void ReportResult(int Result)
/*Reports the result of the game
Pre: Result is either 0, 1, or 2
Post: Result has been displayed. */
{
if(Result==0)
cout<<"A draw!\n";
else if(Result==1)
cout<<"You win!\n";
else
cout<<"Computer wins!\n";
}
//-------------------------------------------------------------------
int PlayGame()
/*Plays one game of 2 and returns an indication of the winner
Post: One game has been played, and a code returned indicating
the winner: 0=Draw 1=User Won 2=Computer Won */
{
int UserSum=DealUser();
int ComputerSum=DealComputer();
int Winner=FindWinner(UserSum, ComputerSum);
ReportResult(Winner);
return(Winner);
}
//-------------------------------------------------------------------
void UpdateCount(int Result, int &Wins, int &Losses, int &Draws)
/*Increments one of the counters as determined by Result
Pre: Result is either 0, 1, or 2
Post: Either Wins, Losses, or Draws has been incremented based
upon whether Result is 1, 2, or 0 respectively */
{
if(Result==0)
Draws++;
else if(Result==1)
Wins++;
else
Losses++;
}
//-------------------------------------------------------------------
char AskRepeat()
/*Asks the user if another game is desired and returns response
Pre: none
Post: User has been asked and has responded with Y, y, N, or n.
The response is returned. */
{
char Answer;
cout<<"Would you like to play again?(Y/N)?";
cin>>Answer;
while((Answer!='Y')&&(Answer!='y')&&(Answer!='N')
&&(Answer!='n')){
cout<<"Answer Y or N please:";
cin>>Answer;
}
return(Answer);
}
//-------------------------------------------------------------------
void Report(int Wins, int Losses, int Draws)
/*Reports the current results
Pre: Wins, Losses, Draws represented the current results
Post: The current results have been displayed */
{
cout<<"Your wins= "<<Wins<<endl;
cout<<"Computer wins= "<<Losses<<endl;
cout<<"Draws= "<<Draws<<endl;
}
//-------------------------------------------------------------------