Question

c language

This assignment is to write a program to score the paper-rock-scissors game AGAIN. Each of two players enters either P, R, or S. The program then announces the winner as well as the basis for determining the winner: “Paper covers rock”, “Rock breaks scissors”, “Scissors cut paper”, or “Draw, nobody wins”. The primary differences between this and previous two versions are described as below:

(1) You MUST use a function to get the input value for the player’s choice. The players must be able to enter either upper- or lower-case letters. If an invalid choice is entered, the player should be permitted to re-enter his choice immediately (before the other player is given a chance to enter their value). The function returns an enumerated type (e.g., Choice) that has possible three values, ROCK, PAPER, and SCISSORS (the one you defined in the previous version). This makes it so that the only part of your program that pertains to the player choices that can involve character variables is the input portion. The rest of your program should always use variables of the enumerated Choice type.

(2) you MUST use a function, e.g., checkWinner, to compare two choices, decide the winner, and print the result on the screen. This means that the function takes two Choice type arguments (i.e., player1’s choice and player2’s choice) and returns nothing.

The output should be like:

Player-1, please enter your choice <p>aper, <r>ock, or <s>cissors:

why?

I do not understand. Please enter your choice <p>aper, <r>ock, or <s>cissors:

42

I do not understand. Please enter your choice <p>aper, <r>ock, or <s>cissors:

Paper!

Player-2, please enter your choice <p>aper, <r>ock, or <s>cissors:

r

Player-1 wins! Paper covers rock!

Answer 1

Executable Code:

#include<stdio.h>

typedef enum {

PAPER, ROCK, SCISSORS

} Choice;

Choice getInput()

{

char ch[50],avoid;

int c=0;

Choice input;

// asks the player to choose Rock, Paper, Scissors

while(c==0)

{

c=1;

printf("Please enter your choice <p>aper. <r>ock, or <s>cissors: ");

gets(ch);

if(ch[0]=='p'||ch[0]=='P')

input=PAPER;

else if(ch[0]=='r'||ch[0]=='R')

input=ROCK;

else if(ch[0]=='S'||ch[0]=='s')

input=SCISSORS;

else

c=0;

if(c==0)

{

printf("I am sorry! I do not understand!\n");

}

}

return input;

}

int main()

{

Choice p1,p2,avoid;

char reply='y';

while(reply=='y'||reply=='Y')

{

printf("Player-1 it is your turn!\n");

p1=getInput();

printf("Player-2 it is your turn!\n");

p2=getInput();

//display result

if(p1==p2)

printf("Draw, nobody wins!\n");

else if(p1==0 && p2==1)

printf("Player1 wins! paper covers rock!\n");

else if(p1==0 && p2==2)

printf("Player2 wins! Scissors cut paper!\n");

else if(p1==1 && p2==2)

printf("Player1 wins! Rock breaks scissors!\n");

else if(p1==1 && p2==0)

printf("Player2 wins! Paper covers rock!\n");

else if(p1==2 && p2==1)

printf("Player2 wins! Rock breaks scissors!\n");

else if(p1==2 && p2==0)

printf("Player1 wins! Scissors cut paper!\n");

printf("Do you wish to continue?(y/n): ");

reply = getchar();

scanf("%c",&avoid);//to clear buffer

}

system("pause");

return 0;

}



Sample Output:





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Player-1 it is your turn! Please enter your choice <p>aper <r>ock, or <s>cissors: why !I do not understand! am sorry Please enter your choice <p>aper <r>ock, or <s>cissors: 42 !I do not understand! am sorry Please enter your choice <p>aper <r>ock, or <s>cissors: Paper! Player-2 it is your turn! Please enter your choice <p>aper. <r>ock, or <s>cissors: r Playerl wins! paper covers rock! Do you wish to continue? (y/n):