Randomization

I created a slot machine program which runs ok, but every time I run the program i get the same numbers randomized - could someone please tell me what i am doing wrong...by the way I am using a = 1+rand() %10 (is there a better way)

Uhh that way will allways give you the same number when you run it!

use this I used it in my game also:

Code:

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int random(int low, int high)
{
srand(time(NULL));
return low + rand()%(high-low+1);
}

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and then when you need a random number do:

Code:

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random (5,15); //a random number between 5 and 15

---

Hope that helps

-Devouring One-

You can use srand(time(0));
and don't forget to include <ctime>

Ohh yeah i forgot to say that sorry... :D

Quote:

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Originally posted by devour89

Code:

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int random(int low, int high)
{
  srand(time(NULL));
  return low + rand()%(high-low+1);
}

---

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Eh, no! Only call srand(time(NULL)) once in your program. Not every time you retrieve a random number.

I said that. Read it again:



and then when you need a random number do:

Code:

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random (5,15); //a random number between 5 and 15

---

Quote:

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Originally posted by devour89
I said that. Read it again:

and then when you need a random number do:

Code:

---

random (5,15); //a random number between 5 and 15

---

---

If you do this:

Code:

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int main()
{
  for(int i=0; i<5; i++)
  cout << Random(0, 10) << endl;
  return 0;
}

---

You call Random(...) 5 times, and thus calling srand() 5 times. Not good, you should only call srand() 1!!! time in your program.
Remove it from the random function and place it in the beginning of your program instead.

seeding the generator at every call of the random function leads to a repeating pattern.. that's why you don't want to do it.