Question about Random.Range

Hi. I have int variable with random range. I set up unity to use random range between 1 and 5 every few seconds. But problem is that unity sometimes uses two same numbers. For example, first it was number 1 and after fre seconds it's again number 1. Is there any way I can correct this?

 

Sounds like working as intended. In a random sample, you can get repeating values.

If you want to produce a different value each time, a very simple way could be something like

Code (csharp):

1.  int myNum = .....
2. /.../
3. int oldNum = myNum
4. while (oldNum==myNum){
5.   myNum = Random.Range...
6. }
7.  
8.  

 

Don't know the script but:

Roll a random number 1-5
This is variable x.
Roll a random number 1-5 - variable Y
if x=y,
Reroll a random 1-5
else
(the thing you want to do)

 

Do you expect your randomness to behave like a dice roll (where each outcome is available any number of times), or like a deck of cards (where each outcome is available only once)?

If you want dice, keep using random calls.

If you want a deck of cards, you'll need to populate a temporary collection and pull from it. I've created some helper scripts that create a "shuffle bag" -- each item in the bag will only be returned once, and the bag will automatically refill itself once it's empty.

 

This is my script:

Code (csharp):

1. testNumber = Random.Range (1, 5);
2.         if (testNumber == 1) {
3.             Invoke("spawner", 1);
4.         }
5.        
6.         if(testNumber == 2) {
7.             Invoke("spawner2", 1);
8.         }
9.  
10.         if (testNumber == 3)
11.         {
12.             Invoke("spawner3", 1);
13.         }
14.  
15.         if (testNumber == 4)
16.         {
17.             Invoke("spawner4", 1);
18.         }

If testNumber is 1 I call spawner function. Inside spawner function I call again Start() and value of testNumber should again be random, but not again 1, it should be 2, 3 or 4 so I can call other spawner functions. Also number should be available any number of times, just it should not repeat. It should be like 1, 4, 2, 3, 1, 2, 4, etc. It should not be like 1, 3, 4, 4.

 

You want to use hpjohn's advice then.

 

Yeah..it's working. I modified it a bit and it's ok now. Thank you guys!

 

pick a number between Min and Max
if the number is bigger or smaller then 50% of the Max print "YES" or "NO".
"YES" or "NO" stands for 0,1 (the smallest you can roll without having to deal with rolling 20 times the same number).
hope this Helps.


void randomDecide()
{
int a = Random.Range(0, 2000);
if (a <= 1000)
{
Debug.Log("No");
}
else
{
Debug.Log("Yes");
}
}

 

If the OP is still working on this issue 6 years later then I think dreams of developing a game may be out of reach. Plus your solution is nonsensical, sorry.