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

int cal(int i){

// Passes i by value, not reference.
// subtract 10 from it.

    i-=10;

// Basic math

    if(i>0)return i/2;
    if(i<0)return ((i-1)/2);
    return 0;
}

void pv(char *s, int v){

// Print 'newline' then S then V

    printf("\n%s: %d ",s,v);

// If cal returned 0, print 0
// otherwise force add a '+' or '-' sign
// (depending on the number)
// infront of it and print the number.

    if(cal(v)==0) printf("0");
    else printf("%+d", cal(v));
}
void rdv(char *s, int *i){

    printf("Enter %s: ",s);

// check for valid input
// if valid, store it in variable d

    if(scanf("%d",i)!=1){

        printf("Enter Valid Input\n");

        // Wait until user hits enter

        while(getchar()!='\n');

        // Basically loops the function until     a user enters a valid input

        rdv(s, i);
    }
}
int main() {

// Enter a seed the random number generator

    srand((unsigned)time(NULL));

    int Str,Dex,Con,Int,Wis,Cha,Level;
    rdv("Str", &Str);
    rdv("Dex", &Dex);
    rdv("Con", &Con);
    rdv("Int", &Int);
    rdv("Wis", &Wis);
    rdv("Cha", &Cha);
    rdv("Level", &Level);

    printf("\nLevel: %d",Level);

    pv("Str", Str);
    pv("Dex", Dex);
    pv("Con", Con);
    pv("Int", Int);
    pv("Wis", Wis);
    pv("Cha", Cha);

// prints 'newline' HP: (some number)
// Level * (randomNumberLessThan6 + 1)

    printf("\nHP: %d",Level*((rand()%6+1)));

    return 0;
}