Yahtzee Program

//Kevin Brough
//Yahtzee Program
#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>

int d0, d1, d2, d3, d4;

int dice[5];
int one_score, two_score, three_score, four_score, five_score, six_score, up_score, up_bonus = 0;//all scores of both sections are at first 0
int t_kind_score, f_kind_score, f_house_score, s_straight_score, l_straight_score, yahtzee_score, chance_score = 0;
int score;
int one_marked, two_marked, three_marked, four_marked, five_marked, six_marked = 0;//at first, all of the upper section is free
int t_kind_marked, f_kind_marked, f_house_marked, s_straight_marked, l_straight_marked, yahtzee_marked, chance_marked = 0;//same witht the lower
int sections = 0; //this will count how many times we've played,
void trim_spaces(char*), print_sections(void), which_die(int), ones(int[]), twos(int[]), threes(int[]), fours(int[]), fives(int[]), sixes(int[]), three_of_a_kind(int[]), four_of_a_kind(int[]), full_house(int[]), small_straight(int[]), large_straight(int[]), yahtzee(int[]), chance(int[]);
int intcmp(const void *, const void *);
void clear (void){ while ( getchar() != '\n' ); }
int main(){
    while(sections <= 13){//while we still have categories to use up


        srand((unsigned int)time(NULL));
        d0 = rand() % 6;//rolling the die
        d1 = rand() % 6;
        d2 = rand() % 6;
        d3 = rand() % 6;
        d4 = rand() % 6;
        dice[0] = d0+1;//then put them in an array for future use
        dice[1] = d1+1;
        dice[2] = d2+1;
        dice[3] = d3+1;
        dice[4] = d4+1;
        char re_dice [10];//the array that holds all the dice to reroll if the user wants to. 9 because max to reroll is 5 with 4 spaces and the null terminator

        int selection;
        printf("Your Roll:\n%d %d %d %d %d\n", dice[0], dice[1], dice[2], dice[3], dice[4]);
        printf("Which die to reroll?\n");
        scanf("%s", re_dice);//user inputs all the die to reroll, up to all 5
        trim_spaces(re_dice);//get rid of all the spaces
        if(re_dice[0] == 0){//if they don't want to reroll after their first roll
            break;
        }
        int i;
        for(i = 0; i < 5; i++){//let's go through that array
            if(re_dice[i] == '\0') break;
            int d = atoi(&re_dice[i]);
            which_die(d);//and assign the user's values to their respective die
        }
        printf("Your Second Roll:\n%d %d %d %d %d\n", dice[0], dice[1], dice[2], dice[3], dice[4]);

        printf("Which die to reroll?\n");
        clear();
        scanf("%s", re_dice);//user inputs all the die to reroll, up to all 5
        trim_spaces(re_dice);
        if(re_dice[0] == 0){//if they don't want to reroll after their first roll
            break;
        }
        int j;
        for(j = 0; j < 5; j++){//let's go through that array
            if(re_dice[j] == '\0') break;
            int d = atoi(&re_dice[j]);
            which_die(d);//and assign the user's values to their respective die
        }
        printf("Your Third Roll:\n%d %d %d %d %d\n", dice[0], dice[1], dice[2], dice[3], dice[4]);

        printf("Place dice into:\n1)Upper Section\n2) Lower Section\n\nSelection?\n");
        clear();
        scanf("%d", &selection);
        while(selection > 2 || selection < 1){//force user to input valid choices
            printf("Please enter a valid choice\n\nPlace dice into:\n1)Upper Section\n2) Lower Section\n\nSelection?\n");
            clear();
            scanf("%d", &selection);
        }
        if(selection == 1){//code for the upper section
            int up_selection;
            printf("Place dice into:\n1) Ones\n2) Twos\n3) Threes\n4) Fours\n5) Fives\n6) Sixes\n\nSelection?\n");
            clear();
            scanf("%d", &up_selection);
            while(up_selection > 6 || up_selection < 1){//force user to input valid choices
                printf("Place dice into:\n1) Ones\n2) Twos\n3) Threes\n4) Fours\n5) Fives\n6) Sixes\n\nSelection?\n");
                clear();
                scanf("%d", &up_selection);
            }
            if(up_selection == 1){
                if(one_marked == 0){//first we check if it's marked
                    ones(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{//if it is marked, force them to choose something else
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1) Ones\n2) Twos\n3) Threes\n4) Fours\n5) Fives\n6) Sixes\n\nSelection?\n");
                    clear();
                    scanf("%d", &up_selection);
                }
            }
            if(up_selection == 2){
                if(two_marked == 0){
                    twos(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1) Ones\n2) Twos\n3) Threes\n4) Fours\n5) Fives\n6) Sixes\n\nSelection?\n");
                    clear();
                    scanf("%d", &up_selection);
                }
            }
            if(up_selection == 3){
                if(three_marked == 0){
                    threes(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1) Ones\n2) Twos\n3) Threes\n4) Fours\n5) Fives\n6) Sixes\n\nSelection?\n");
                    clear();
                    scanf("%d", &up_selection);
                }
            }
            if(up_selection == 4){
                if(four_marked == 0){
                    fours(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1) Ones\n2) Twos\n3) Threes\n4) Fours\n5) Fives\n6) Sixes\n\nSelection?\n");
                    clear();
                    scanf("%d", &up_selection);
                }
            }
            if(up_selection == 5){
                if(five_marked == 0){
                    fives(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1) Ones\n2) Twos\n3) Threes\n4) Fours\n5) Fives\n6) Sixes\n\nSelection?\n");
                    clear();
                    scanf("%d", &up_selection);
                }
            }
            if(up_selection == 6){
                if(six_marked == 0){
                    sixes(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1) Ones\n2) Twos\n3) Threes\n4) Fours\n5) Fives\n6) Sixes\n\nSelection?\n");
                    clear();
                    scanf("%d", &up_selection);
                }
            }
            if(up_score >= 63){//if the sum total of the upper section is 63 or higher, user gets a 35 point bonus
                score += 35;
                up_bonus = 35;
            }
        }
        if(selection == 2){
            int lower_selection;
            printf("Place dice into:\n1)Three of a Kind\n2)Four of a Kind\n3)Full House\n4) Small Straight\n5) Large Straight\n6) Yahtzee\n7) Chance\n\nSelection?\n");
            clear();
            scanf("%d", &lower_selection);
            while(lower_selection > 7 || lower_selection < 1){//force user to input valid choices
                printf("Place dice into:\n1)Three of a Kind\n2)Four of a Kind\n3)Full House\n4) Small Straight\n5) Large Straight\n6) Yahtzee\n7) Chance\n\nSelection?\n");
                clear();
                scanf("%d", &lower_selection);
            }
            if(lower_selection == 1){
                if(t_kind_marked == 0){
                    three_of_a_kind(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1)Three of a Kind\n2)Four of a Kind\n3)Full House\n4) Small Straight\n5) Large Straight\n6) Yahtzee\n7) Chance\n\nSelection?\n");
                    clear();
                    scanf("%d", &lower_selection);
                }
            }
            if(lower_selection == 2){
                if(f_kind_marked == 0){
                    four_of_a_kind(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1)Three of a Kind\n2)Four of a Kind\n3)Full House\n4) Small Straight\n5) Large Straight\n6) Yahtzee\n7) Chance\n\nSelection?\n");
                    clear();
                    scanf("%d", &lower_selection);
                }
            }
            if(lower_selection == 3){
                if(f_house_marked == 0){
                    full_house(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1)Three of a Kind\n2)Four of a Kind\n3)Full House\n4) Small Straight\n5) Large Straight\n6) Yahtzee\n7) Chance\n\nSelection?\n");
                    clear();
                    scanf("%d", &lower_selection);
                }
            }
            if(lower_selection == 4){
                if(s_straight_marked == 0){
                    small_straight(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1)Three of a Kind\n2)Four of a Kind\n3)Full House\n4) Small Straight\n5) Large Straight\n6) Yahtzee\n7) Chance\n\nSelection?\n");
                    clear();
                    scanf("%d", &lower_selection);
                }
            }
            if(lower_selection == 5){
                if(l_straight_marked == 0){
                    large_straight(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1)Three of a Kind\n2)Four of a Kind\n3)Full House\n4) Small Straight\n5) Large Straight\n6) Yahtzee\n7) Chance\n\nSelection?\n");
                    clear();
                    scanf("%d", &lower_selection);
                }
            }
            if(lower_selection == 6){
                if(yahtzee_marked == 0){
                    yahtzee(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1)Three of a Kind\n2)Four of a Kind\n3)Full House\n4) Small Straight\n5) Large Straight\n6) Yahtzee\n7) Chance\n\nSelection?\n");
                    clear();
                    scanf("%d", &lower_selection);
                }
            }
            if(lower_selection == 7){
                if(chance_marked == 0){
                    chance(dice);
                    printf("\nYour score so far is: %d\n\n", score);
                    print_sections();
                }
                else{
                    printf("\nYou've already selected that, please choose another: \n\n");
                    printf("Place dice into:\n1)Three of a Kind\n2)Four of a Kind\n3)Full House\n4) Small Straight\n5) Large Straight\n6) Yahtzee\n7) Chance\n\nSelection?\n");
                    clear();
                    scanf("%d", &lower_selection);
                }
            }
        }
    }
    return 0;//game ends when selections is 13
}
void ones(int dice[]){
    int i;
    for(i = 0; i < 5; i++){//summing the ones, this will be relative to the upper section selection, all the way through 6
        if(dice[i] == 1){
            one_score+=1;
        }
    }
    up_score += one_score;//up score is the running tally to see if we got above or equal to 63 point in the upper section
    score += one_score; //for individual score keeping,
    one_marked = 1;//we mark it so we don't get to come back
    sections++;//game ends when this is 13, or all sections have been played
}
void twos(int dice[]){
    int i;
    for(i = 0; i < 5; i++){
        if(dice[i] == 2){
            two_score+=2;
        }
    }
    up_score += two_score;
    score += two_score;
    two_marked = 1;//we mark it so we don't get to come back
    sections++;
}
void threes(int dice[]){
    int i;
    for(i = 0; i < 5; i++){
        if(dice[i] == 3){
            three_score+=3;
        }
    }
    up_score += three_score;
    score += three_score;
    three_marked = 1;//we mark it so we don't get to come back
    sections++;
}
void fours(int dice[]){
    int i;
    for(i = 0; i < 5; i++){
        if(dice[i] == 4){
            four_score+=4;
        }
    }
    up_score += four_score;//and seven years ago hahahahah!!!!!
    score += four_score;
    four_marked = 1;//we mark it so we don't get to come back
    sections++;
}
void fives(int dice[]){
    int i;
    for(i = 0; i < 5; i++){
        if(dice[i] == 5){
            five_score+=5;
        }
    }
    up_score += five_score;
    score += five_score;
    one_marked = 1;//we mark it so we don't get to come back
    sections++;
}
void sixes(int dice[]){
    int i;
    for(i = 0; i < 5; i++){
        if(dice[i] == 6){
            six_score+=6;
        }
    }
    up_score += six_score;
    score += six_score;
    one_marked = 1;//we mark it so we don't get to come back
    sections++;
}
void three_of_a_kind(int dice[]){
    int i, j, k;
    int have_t_kind = 0;//at first we don't know if we have a three of a kind
    for(i = 1; i < 6; i++){
        int count = 0;
        for(j = 0; j < 5; j++){
            if(dice[j] == i) count++;//check our current number against the next number
            if(count > 2) have_t_kind = 1;
        }
    }
    if(have_t_kind){//summing if indeed we have a three of a kind
        for(k = 0; k < 6; k++){
            t_kind_score += dice[k];
        }
    }
    score += t_kind_score;
    t_kind_marked = 1;
    sections++;
}
void four_of_a_kind(int dice[]){
    int i, j, k;
    int have_f_kind = 0;//at first we don't know if we have a four of a kind
    for(i = 1; i < 6; i++){
        int count = 0;
        for(j = 0; j < 5; j++){
            if(dice[j] == i) count++;//check our current number against the next number
            if(count > 3) have_f_kind = 1;
        }
    }
    if(have_f_kind){//summing if indeed we have a four of a kind
        for(k = 0; k < 6; k++){
            t_kind_score += dice[k];
        }
    }
    score += f_kind_score;
    f_kind_marked = 1;
    sections++;
}
void full_house(int dice[]){
    qsort(dice, 5, sizeof(int), intcmp);
    if( (((dice[0] == dice[1]) && (dice[1] == dice[2])) && // Three of a Kind
        (dice[3] == dice[4]) && // Two of a Kind
        (dice[2] != dice[3])) ||
        ((dice[0] == dice[1]) && // Two of a Kind
        ((dice[2] == dice[3]) && (dice[3] == dice[4])) && // Three of a Kind
        (dice[1] != dice[2])) ){
            f_house_score = 25;
    }
    score += f_house_score;
    f_house_marked = 1;
    sections++;
}
void small_straight(int dice[]){//sorting first makes it easier to implement
    qsort(dice, 5, sizeof(int), intcmp);
    int i;
    for(i = 0; i < 4; i++ ){//this is the edge case that arises if you have two of the same number, we'll just put it at the end
        int temp = 0;
        if( dice[i] == dice[i+1] ){
            temp = dice[i];
            int j;
            for(j = i; j < 4; j++ ){
                dice[j] = dice[j+1];
            }
            dice[4] = temp;
        }
    }
    if( ((dice[0] == 1) && (dice[1] == 2) && (dice[2] == 3) && (dice[3] == 4)) ||//all of the cases of a small staight
      ((dice[0] == 2) && (dice[1] == 3) && (dice[2] == 4) && (dice[3] == 5)) ||
      ((dice[0] == 3) && (dice[1] == 4) && (dice[2] == 5) && (dice[3] == 6)) ||
      ((dice[1] == 1) && (dice[2] == 2) && (dice[3] == 3) && (dice[4] == 4)) ||
      ((dice[1] == 2) && (dice[2] == 3) && (dice[3] == 4) && (dice[4] == 5)) ||
      ((dice[1] == 3) && (dice[2] == 4) && (dice[3] == 5) && (dice[4] == 6)) ){
        s_straight_score = 30;
    }
    score += s_straight_score;
    s_straight_marked = 1;
    sections++;
}
void large_straight(int dice[]){
    qsort(dice, 5, sizeof(int), intcmp);
    if( ((dice[0] == 1) &&//the only two instances of a large straight
       (dice[1] == 2) &&
       (dice[2] == 3) &&
       (dice[3] == 4) &&
       (dice[4] == 5)) ||
      ((dice[0] == 2) &&
       (dice[1] == 3) &&
       (dice[2] == 4) &&
       (dice[3] == 5) &&
       (dice[4] == 6)) ){
            l_straight_score = 40;
    }
    score += l_straight_score;
    l_straight_marked = 1;
    sections++;
}
void yahtzee(int dice[]){
    int i, j, k;
    for(i = 1; i < 6; i++){
        int count = 0;
        for(j = 0; j < 5; j++){
            if(dice[j] == i) count++;//check our current number against the next number
            if(count > 4) yahtzee_score = 50;
        }
    }
    score += yahtzee_score;
    yahtzee_marked = 1;
    sections++;
}
void chance(int dice[]){
    int i;
    for(i = 0; i < 5; i++){
        chance_score += dice[i];
    }
    score += chance_score;
    chance_marked = 1;
    sections++;
}
void which_die(int d){//since the user gets to put the die they want to reroll in any order on input, go through them and find which is which
    if(d == 1){
        d0 = rand() % 6;
        dice[0] = d0+1;
    }
    if(d == 2){
        d1 = rand() % 6;
        dice[1] = d1+1;
    }
    if(d == 3){
        d2 = rand() % 6;
        dice[2] = d2+1;
    }
    if(d == 4){
        d3 = rand() % 6;
        dice[3] = d3+1;
    }
    if(d == 5){
        d4 = rand() % 6;
        dice[4] = d4+1;
    }
}
void trim_spaces(char *str){//function to get rid of all the spaces in the string the user entered for the die they wanted to reroll
  char *ptr1 = str, *ptr2 = str;
  do
    while (*ptr2 == ' ')
      ptr2++;
  while (*ptr1++ = *ptr2++);
}
int intcmp(const void *aa, const void *bb){//our comarison function for the qsort
    const int *a = aa, *b = bb;
    return (*a < *b) ? -1 : (*a > *b);
}
void print_sections(){
    printf("Ones: %d\t\t\tFours: %d\nTwos: %d\t\t\tFives: %d\nThrees: %d\t\tSixes: %d\nUpper Section Bonus: %d\n", one_score, four_score, two_score, five_score, three_score, six_score, up_bonus);
    printf("Three of a Kind: %d\tFour of a Kind: %d\nSmall Straight: %d\tLarge Straight: %d\n", t_kind_score, f_kind_score, s_straight_score, l_straight_score);
    printf("Full House: %d\t\tYahtzee: %d\nChance %d\n\n", f_house_score, yahtzee_score, chance_score);
}