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

#define MONEY_START 1000
#define MIN_VALUE 1
#define MAX_VALUE 6

int getInt(int, int);
int menu();
int roll(int, int);
void buyChips(int *money, int *chips);                 
void sellChips(int *money, int *chips);
void playCraps(int *money, int *chips);
void playArupsGameOfDice(int *money, int *chips);
void statusReport(int *money, int *chips);

int main(){
   int money =  MONEY_START;
   int chips = 0;
   int isContinue = 1;
   printf("You have $%d.\n", money);
   do {
       int choose = menu();
       switch(choose){
           case 1: buyChips(&money, &chips);
               break;
           case 2: sellChips(&money, &chips);
               break;
           case 3: playCraps(&money, &chips);
               break;
           case 4: playArupsGameOfDice(&money, &chips);
               break;
           case 5: statusReport(&money, &chips);
               break;
           default : printf("GoodBye !\n");
               isContinue = 0;     
       } 
   } while(isContinue == 1);
}

//Functions are in here
int getInt(int minValue, int maxValue){
    int value;
    char check; //42a
    
    do {
        int rc = scanf("%d%c", &value, &check);
        fpurge(stdin);
        if(rc != 2 || check != '\n'){
            printf("Invalid value!\n");
        }
        else if (value > maxValue || value < minValue){
            printf("Value out of range!\n");
        }
        else{// rc == 2 && check == '\n'
            return value;
            //break out of function
        }
    } while(1);
}

int menu() {
    int choose;
    printf("______________)***********(_________________\n");
    printf("Welcome to the Casino. Here are your choices: \n");
    printf("1) Buy chips \n");
    printf("2) Sell chips \n");
    printf("3) Play Craps \n");
    printf("4) Play Arup's Game of Dice \n");
    printf("5) Status Report \n");
    printf("6) Quit \n");
    
    choose = getInt(MIN_VALUE, MAX_VALUE);
    return choose;
}

void buyChips(int *money, int *chips) {
    printf("How much cash do you want to spend for chips?\n");
    int cash = getInt(0, 100000);
    if(cash > *money){
        printf("Sorry, you do not have that much money. No chips bought.\n");
    }
    else{
        *money -= (cash/11)*11;
        *chips += cash/11;
        printf("You bought %d chips.\n", cash/11);
    }
}

void sellChips(int *money, int *chips){
    printf("How many chips you want to sell?\n");
    int chipSell = getInt(0, 100000);
    if(chipSell > *chips){
        printf("Sorry, you do not have many chips. No chips sold.\n");
    }
    else{
        *chips -= chipSell;
        *money += chipSell*10;
        printf("You sold %d chips.\n", chipSell);
    }
}

void statusReport(int *money, int *chips){
    printf("You currently have $%d left and %d chips.\n", *money, *chips);
}

//game
int roll(int minValue, int maxValue){
    srand( (unsigned)time( NULL ) );
    return minValue + rand() % (maxValue + 1 - minValue);
}

void playCraps(int *money, int *chips){
    printf("How many chips would you like to bet?\n");
    int chipsBet = getInt(0, *chips);   
    if(chipsBet == 0){
        printf("Sorry, that is not allowed. No game played.\n");
    }
    else{
        *chips -= chipsBet;
        printf("Press 'r' and hit enter for your first roll.\n");
        getchar();
        int rollTwoDice = roll(2,12);
        printf("You rolled a %d.\n", rollTwoDice);
        if(rollTwoDice == 7 || rollTwoDice == 11){
            printf("You win !\n");
            *chips += chipsBet*2;
        }
        else if(rollTwoDice == 2 || rollTwoDice == 3 || rollTwoDice == 12){
            printf("You lose !\n");
        }
        else{
            int k = rollTwoDice;
            int isStop = 0;
            do{
                printf("Press 'r' and hit enter for your next roll.\n");
                getchar();
                int nextRoll = roll(2,12);
                printf("You rolled a %d.\n", nextRoll);
                if(nextRoll == k){
                    printf("You win!\n");
                    *chips += 2*chipsBet;
                    isStop = 1;
                }
                else if(nextRoll == 7){
                    printf("Sorry, you have lost.\n");
                    isStop = 1;
                }
            } while(isStop == 0);
        }
    }
    
}

void playArupsGameOfDice(int *money, int *chips) {
    printf("How many chips would you like to bet?\n");
    int chipsBet = getInt(0, *chips);   
    if(chipsBet == 0){
        printf("Sorry, that is not allowed. No game played.\n");
    }
    else{
        *chips -= chipsBet;
        printf("Press 'r' and hit enter for your first roll.\n");
        getchar();
        int rollTwoDice = roll(2,12);
        printf("You rolled a %d.\n", rollTwoDice);
        if(rollTwoDice == 11 || rollTwoDice == 12){
            printf("You win !\n");
            *chips += chipsBet*2;
        }
        else if(rollTwoDice == 2){
            printf("You lose !\n");
        }
        else{
            int k = rollTwoDice;
            int point;
                printf("Press 'r' and hit enter for your next roll.\n");
                getchar();
                int nextRoll = roll(2,12);
                printf("You rolled a %d.\n", nextRoll);
                point = nextRoll;
                if(point > k){
                    printf("You win!\n");
                    *chips += 2*chipsBet;
                } 
                else{
                    printf("Sorry, you have lost.\n");
                }
        }
    }
}

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