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Question by eyal · Jul 12, 2011 at 04:54 AM · coroutine

Starting Coroutine within Start method

Hi All,

I use C# for scripting in Unity.

Say I have a coroutine method...let name ia f so it goes somthing like this:

 private IEnumerator f()
 {
    while (true)
    {
      do things
     }
 }
 



Rather calling the f every frame the coroutine uses while(true) loop.

The Start method look like thaht:

void Start { startCoroutine(f());

}

When I press play button Unity freezes and does not responds. I check Unity's doc and it looks like it should work. I don't understands the problem. please help me

Thank u in advance

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Answer by Joshua · Jul 12, 2011 at 05:01 AM

Unity doesn't freeze, it is just executing your while loop. It will keep doing this until the condition is no longer true, or you yield.

 private IEnumerator f()
 {
    while (true)
    {
      //do things
      yield return null; //after having done things, exit this loop and wait null frames before reentering. So the next frame 'things' will happen again.  
    }
 }

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avatar image eyal · Jul 12, 2011 at 05:21 AM 0
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Wow it works!!! I thought yield return null will exit the coroutine I guess it just hold the method for one frame. Thank u very much :)

avatar image Joshua · Jul 12, 2011 at 05:22 AM 0
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It does exit the coroutine, and then re-enters after a specified amount of time/frames. Glad to have helped. :)

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