C# wait X-Seconds in Code before continue in Code?

Question

actually i'm coding a Traffic-light-System. and now i stuck at the point of changing from red to green. How can i wait in the code before it continues, but dont stop the whole Game.

actually i have this, but this stops the whole game

 trafficLight.ChangeStatus(Status.Yellow);
 System.Threading.Thread.Sleep(2000);
 trafficLight.ChangeStatus(Status.Green);

i need to light up the yellow light for about 2 seconds, then it should turn on the Green light, how to do this?

Answer 1

Best Answer

Answer by robertbu · Feb 24, 2013 at 10:00 PM

Quick example in C#:

 public class TrafficLight : MonoBehaviour {
     
         void Start () {
             StartCoroutine (GreenYellowRed ());
         }
     
         IEnumerator GreenYellowRed()
         {
             while (true) {
                 Debug.Log ("Green");
                 yield return new WaitForSeconds(3.0f);
                 Debug.Log ("Yellow");
                 yield return new WaitForSeconds(1.0f);
                 Debug.Log ("Red");
                 yield return new WaitForSeconds(3.0f);
             }
         }
     }

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UnityExample · Feb 25, 2013 at 09:26 PM 1

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worked perfectly. just added a bool flag outside the while and set it to false after all changes are done so that the while stops, otherwhise the changes will be repeated

gearpichon · May 01, 2014 at 05:37 AM 0

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sorry i'm kind new on this, how can i wait secons in the awake function. Corutines can not be loaded from Awake. I need to wait in the Awake :C

robertbu · May 01, 2014 at 06:05 AM 0

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You can't make Awake() a coroutine, but you can start a coroutine from Awake(). For example, if you replace Start() in the above with with Awake() it would work.

gearpichon · May 01, 2014 at 06:55 AM 0

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you are right i can call it, but this dont stops the code excution the courutine make a paralel process D:, how can i wait X seconds (i need to stop the code excecution)

robertbu · May 01, 2014 at 07:53 AM 0

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This needs to be opened as a new question. You need to explain exactly what you are trying to do.

Answer 2

Answer by _Grocfex0000 · Oct 20, 2014 at 11:01 AM

im pretty useless scripter but i needed the same thing and so i did it with calculateing stuff and it does not need some kind of really complicated stuff i think this may help you:

 public int one;
 public int two = 50;

if (one <= two){

one = one -1;

if (one == 40){

dosomethingfirst

} if (one == 30){

dosomethingsecond

}

if (one == 0){

one = two; }

}

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Answer 3

Answer by kpetkov · Aug 01, 2018 at 10:50 AM

So far so good. What if I need to wait for some period of time from a class that have to be instantiated and not inheriting from MonoBehaviour ? How can I do that ? Thread sleep is not acceptable, also I don't have acces to coroutines. And by the way I also want to be able to wait in the Utility class where every method is static and have to be accessed from anywhere.

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C# wait X-Seconds in Code before continue in Code?

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