Need Help continuing my program

[thatfunnydude]

I'm currently working on my assignment, but I can't get it to continue when user hit's 'r' or 'R'. Do I have to add a do while loop or is there another easier way to do it without loops?

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <time.h>

int roll();


int main ()
{
    int x, y, z, num;
    int score = 0, rollscore;
    char roll;
    time_t t;
    
    printf("Human player rolls First, Press 'R' to roll the Die.\n");
    scanf("%c", &roll);
    srand((unsigned)time(&t));
  
    while (roll== 'r' || roll == 'R')
        {
       for (x=0; x<1; x++)
        {
            x = rand() % 6 +1;
        printf("%d\n", x);
        rollscore+=x;
        printf("Your score is now %d\n", rollscore);
        printf("Roll Again? Press R to roll or H to hold\n");
        scanf("%c", &roll);
        }
            while(roll == 'r' || roll == 'R');
            
            if(roll == 'h' || roll == 'H')
                printf("You chose to hold. Your score is %d", rollscore);
        //break;
    }
    
   // rollscore=x;
    
 
    
    
    
    //score = x;
  //  if (x==1)
   // {
     //   printf("1 was rolled. Your turn is over.\n");
    //}
    return 0;
}

[48T7M4Gy]

a while loop is a reasonable way to program it. However repeating line 20 at line 31 appears to indicate that you need to clear up the logic a bit. A simple flowchart outlining the framework will help you use a single while loop at line 20.

[thatfunnydude]

Yeah, the second while loop I added it just by testing,

   printf("Human player rolls First, Press 'R' to roll the Die.\n");
    scanf("%c", &roll);
    srand((unsigned)time(&t));
  
    while (roll== 'r' || roll == 'R')
        {
       for (x=0; x<1; x++)
        {
            x = rand() % 6 +1;
        printf("%d\n", x);
        rollscore+=x;
        printf("Your score is now %d\n", rollscore);
         printf("Roll Again? Press R to roll or H to hold\n");
        //scanf("%c", &roll);

        }
          
        //break;
    }
      

When I cancel out the scanf statement, it just keeps running my program infinitely, how do I get it to where it can read my scanf value?

[thatfunnydude]

Okay, I fixed it. Now I can only press 'r' twice before it stops the program and I can't seem to figure out why that is. Any suggestions?

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <time.h>

int roll();


int main ()
{
    int x, y, z, num;
    int score = 0, rollscore;
    char roll = '0';
    time_t t;
    
    printf("Human player rolls First, Press any button to roll the die.\n");
    //scanf("%c", &roll);
    srand((unsigned)time(&t));
    
    do
    //while (roll== 'r' || roll == 'R')
        {
       //for (x=0; x<1; x++)
            x = rand() % 6 +1;
        
            if (x==1)
   {
      printf("1 was rolled. Your turn is over.\n");
       break;
    }
           
        printf("%d\n", x);
        rollscore+=x;
        printf("Your score is now %d\n", rollscore);
        printf("Roll Again? Press R to roll or H to hold\n");
        scanf("%c", &roll);
            x++;
    }
      
  
      while(roll == 'r' || roll == 'R');
    getchar();
            
            if(roll == 'h' || roll == 'H')
                printf("You chose to hold. Your score is %d", rollscore);
    
    
    return 0;
}

[48T7M4Gy]

Have you drawn a flowchart yet?

There seem to be three separate cases involving H, R and x = 1. Each determines if the player and the computer get to have a turn or continue to have turns. A flowchart is a good way to get the logic nailed before you write code.

Either a flowchart or pseudocode will do.