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kev670

slot machine

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I'm trying to make a slot machine. at the moment i am trying to have a function for each reel. my broblem is that when i turn them into functions the random numbers are always all the same. For instance 22 or 44. i want my reel to have 10 numbers. here is my code
#include <cstdlib> 
#include <ctime> 
#include <iostream>
using namespace std;
//----------------------------------------------------------------------
void slot1(int random_integer);
void slot2(int random_integer);

//----------------------------------------------------------------------

int main() 
{ 
     
    int random_integer, ri; 
    	

    slot1(random_integer);
    slot2(ri);
    
}
//----------------------------------------------------------------------
void slot1(int random_integer)


    {
	srand(time(NULL));
     	random_integer = (rand()%10)+1; 
     	cout << random_integer;
    } 
//----------------------------------------------------------------------
  void slot2(int ri)


   {
	srand(time(NULL));
     	ri = (rand()%10)+1; 
     	cout << ri;
    }     
       
       
//----------------------------------------------------------------------


i also want to be able to hold a slot and spin the other 2 slots again. how can i do this. thanks for any help.

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Call srand() once, at the start of your program.


#include <cstdlib>
#include <ctime>
#include <iostream>
using namespace std;
//----------------------------------------------------------------------
void slot1(int random_integer);
void slot2(int random_integer);

//----------------------------------------------------------------------

int main()
{
srand(time(NULL));
int random_integer, ri;

slot1(random_integer);
slot2(ri);

}
//----------------------------------------------------------------------
void slot1(int random_integer)
{

random_integer = (rand()%10)+1;
cout << random_integer;
}
//----------------------------------------------------------------------
void slot2(int ri)
{

ri = (rand()%10)+1;
cout << ri;
}


//----------------------------------------------------------------------



srand() starts a sequence of random numbers for each unique argument you give it. By calling it with time(NULL) it returns a different sequence every time you run the program. But the chances are that your program will run both functions inside the same second, so time(NULL) will return the same value. so the numbers will be the same.

In general srand() should never be called more than once.

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