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