craps game & dice game..

Hey guys I'm pretty much stuck on how to actually do the functions for the craps and dice game..here's the criteria and what i have...


craps criteria & dice game criteria..



Welcome to the Casino. Here are your choices:
1) Buy chips
2) Sell chips
3) Play Craps
4) Play Arup's Game of Dice
5) Status Report
6) Quit
3
How many chips would you like to bet?
0
Sorry, that is not allowed. No game played.
Welcome to the Casino. Here are your choices:
1) Buy chips
2) Sell chips
3) Play Craps
4) Play Arup's Game of Dice
5) Status Report
6) Quit
3
How many chips would you like to bet?
10
Press 'r' and hit enter for your first roll.
r
You rolled 8.
Press 'r' and hit enter for your next roll.
r
You rolled 12.
Press 'r' and hit enter for your next roll.
r
You rolled 6.
Press 'r' and hit enter for your next roll.
r
You rolled 7.
Sorry, you have lost.

Welcome to the Casino. Here are your choices:
1) Buy chips
2) Sell chips
3) Play Craps
4) Play Arup's Game of Dice
5) Status Report
6) Quit
4
How many chips would you like to bet?
17
Press 'r' and hit enter for your first roll.
r
You rolled 3.
Press 'r' and hit enter for your next roll.
r
You rolled 8.
You win!



Heres what i have..


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

#define CHIP_VALUE 11
#define SELL_VALUE 10

//Intialize needed functions
int pairofdice();
int craps();
int arupsdice();
int buychips();
int sellchips();
void statusreport();
void menu();

Code:

---

    int main(void)        {
 
      int ans;
      int cash = 1000;
      int chips = 0;
         
      do        {
     
      //Print menu and gather user response
        menu();
        scanf("%d", &ans);
     
      //Invoke proper function per user response       
        if (ans == 1)
            chips = buychips(&cash);
        else if (ans == 2)
            sellchips();                       
        else if (ans == 3)
            craps ();
        else if (ans == 4)
            arupsdice();
        else if (ans == 5)
            statusreport();
        //Sort out invalid inputs from user
        else if (ans != 6)
            printf("Invalid menu choice, please select again.\n");
     
      }        while(ans != 6);
 
      printf("Thanks for visiting!!\n");
 
      return 0;
  }

// Pre-conditions: None.
// Post-conditions: Main menu will be printed and a valid user answer will be returned.
    void menu()        {
 
      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");
  }

// Pre-conditions: None.
// Post-conditions: Generates two random numbers in between
//                  one and six inclusive and returns their sum.
    int pairofdice()        {
 
      int dice1, dice2, roll;
 
      srand(time(0));
  //Random number 1 through six for each die
      dice1 = 1 + rand()%6;
      dice2 = 1 + rand()%6;
 
  //Combine for roll total
      roll = dice1 + dice2;
 
      return roll;
  }

// Pre-condition: None.
// Post-condition: Plays one game of Craps and returns
//                                PLAYER_WON if the player won and
//                                                PLAYER_LOST if they lost.
    int craps()        {
 
      printf("This is where you insert your code for the craps game...\n");       
                 
  }//end craps

// Pre-condtion: None.
// Post-condition: Plays one game of Arup's game of dice and
//                                                returns PLAYER_WON if the player won and
//                                                returns PLAYER_LOST if thet lost.
    int arupsdice()        {
 
      printf("This is where you insert your code for the arupsdice game...\n");
         
  }//end arupsdice

// Pre-condition: cash is the address of the variable
//                storing the amount of money the user
//                wants to spend on chips.
// Post-condition: The number of chips purchased is returned
//                and the variable storing the amount of
//                money the user paid for chips is adjusted
//                to equal the change left over after the
//                transaction.

    int buychips(int*cash_ptr)        {
      int Cash_4_Chips;
      int *cash_ptr;
   
      printf("How much cash do you want to spend for chips?\n");
      scanf("%d", &Cash_4_Chips);
         
      if(Cash_4_Chips>*cash_ptr);
         
      printf(" Sorry, you do not have that much money. No chips bought.\n");
 
 
         
         
 
  }//End function to buy chips

// Pre-conditions: numchips > 0.
// Post-conditions: Returns the cash obtained for selling
//                  numchips number of chips.
    int sellchips()        {
 
      printf("This is where you insert your code for selling chips...\n");
 
  }//End function to sell chips       
       
// Pre-condition: The first parameter is the number of
//                chips the use has, the second is how
//                much cash they currently have.
// Post-condition: A report detailing the number of chips
//                and the amount of cash the user has is
//                printed.
    void statusreport()        {
 
      printf("This is where you insert your code for the status report...\n");
 
  }//Emd status report
        return 0;

}

---

I'm confused on how to do it because I looked at other examples on the site for craps.. Would appreciate it a lot for help

You're only supposed to call srand() once during the execution of a program. The best place to put it is in main().

You have some stray code at the end:

Code:

---

        return 0;

}

---

Just get rid of it.

Code:

---

    int buychips(int*cash_ptr)        {
      int Cash_4_Chips;
      int *cash_ptr;

---

You will most likely get a warning here. Something to the effect of "shadowing a parameter". Get rid of the code in red.

Code:

---

    int buychips(int*cash_ptr)        {
      int Cash_4_Chips;
      int *cash_ptr;
   
      printf("How much cash do you want to spend for chips?\n");
      scanf("%d", &Cash_4_Chips);
         
      if(Cash_4_Chips>*cash_ptr);
         
      printf(" Sorry, you do not have that much money. No chips bought.\n");
 
 
         
         
 
  }//End function to buy chips

---

Because of the extra semicolon after your if, the printf() will always execute.

You never return a value from this function.

As for craps() . . . you'll need a while loop.

ok here's my revised version...


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

#define CHIP_VALUE 11
#define SELL_VALUE 10

//Intialize needed functions
int pairofdice();
int craps();
int arupsdice();
int buychips();
int sellchips();
void statusreport();
void menu();

int main(void) {

Code:

---

      int ans;
      int cash = 1000;
      int chips = 0;
          srand(time(0))
      do        {
     
      //Print menu and gather user response
        menu();
        scanf("%d", &ans);
     
      //Invoke proper function per user response       
        if (ans == 1)
            chips = buychips(&cash)
        else if (ans == 2)
            sellchips();                       
        else if (ans == 3)
            craps ();
        else if (ans == 4)
            arupsdice();
        else if (ans == 5)
            statusreport();
        //Sort out invalid inputs from user
        else if (ans != 6)
            printf("Invalid menu choice, please select again.\n");
     
      }        while(ans != 6);
 
      printf("Thanks for visiting!!\n");
 
      return 0;
  }

// Pre-conditions: None.
// Post-conditions: Main menu will be printed and a valid user answer
//                  will be returned.
    void menu()        {
 
      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");
  }

// Pre-conditions: None.
// Post-conditions: Generates two random numbers in between
//                  one and six inclusive and returns their sum.
    int pairofdice()        {
 
      int dice1, dice2, roll;
 
     
  //Random number 1 through six for each die
      dice1 = 1 + rand()%6;
      dice2 = 1 + rand()%6;
 
  //Combine for roll total
      roll = dice1 + dice2;
 
      return roll;
  }

// Pre-condition: None.
// Post-condition: Plays one game of Craps and returns
//                                PLAYER_WON if the player won and
//                                                PLAYER_LOST if they lost.
    int craps()        {
 
      printf("This is where you insert your code for the craps game...\n");       
                 
  }//end craps

// Pre-condtion: None.
// Post-condition: Plays one game of Arup's game of dice and
//                                                returns PLAYER_WON if the player won and
//                                                returns PLAYER_LOST if thet lost.
    int arupsdice()        {
 
      printf("This is where you insert your code for the arupsdice game...\n");
         
  }//end arupsdice

// Pre-condition: cash is the address of the variable
//                storing the amount of money the user
//                wants to spend on chips.
// Post-condition: The number of chips purchased is returned
//                and the variable storing the amount of
//                money the user paid for chips is adjusted
//                to equal the change left over after the
//                transaction.

    int buychips(int*cash_ptr)        {
      int Cash_4_Chips;
   
      printf("How much cash do you want to spend for chips?\n");
      scanf("%d", &Cash_4_Chips);
         
      if(Cash_4_Chips>*cash_ptr);
         
      printf(" Sorry, you do not have that much money. No chips bought.\n");
 
 
         
         
 
  }//End function to buy chips

// Pre-conditions: numchips > 0.
// Post-conditions: Returns the cash obtained for selling
//                  numchips number of chips.
    int sellchips()        {
 
      printf("This is where you insert your code for selling chips...\n");
 
  }//End function to sell chips       
       
// Pre-condition: The first parameter is the number of
//                chips the use has, the second is how
//                much cash they currently have.
// Post-condition: A report detailing the number of chips
//                and the amount of cash the user has is
//                printed.
    void statusreport()        {
 
      printf("This is where you insert your code for the status report...\n");
 
  }//End status report

---

well i have everything for the sell of chips.. but the status report is getting really difficult.Idon't know whether i need a equation or a for loop after the void statusreport...

Code:

---


//                  numchips number of chips.
    int sellchips(int *numchips_ptr) {
      int chipsB;
      int chips_sold;
      int Chips_4_Sale;
   
   
      printf("How many chips do you want to sell?\n");
      scanf("%d", &Chips_4_Sale);
         
      if(Chips_4_Sale>*numchips_ptr)
      {
        printf("Sorry, you do not have that many chips.  No chips sold.\n");
      }
      else
      {
        chipsB=Chips_4_Sale/SELL_VALUE;
        chips_sold=chipsB*SELL_VALUE;
        *numchips_ptr=*numchips_ptr-chips_sold;
      }
     
      return chipsB;
             
  }//End function to sell chips       
       
// Pre-condition: The first parameter is the number of
//                chips the use has, the second is how
//                much cash they currently have.
// Post-condition: A report detailing the number of chips
//                and the amount of cash the user has is
//                printed.
    void statusreport()        {
   
    int Cash_4_Chips
   
 
      printf("\n");
 
  }//End status report

---