Question How do you add a delay to a victory scene?

I want my game to show a victory scene, after the player shoots an asteroid and destroys it. So I have created this script and attached it to the asteroid, and it works.

Code (CSharp):

1. public class Victory : MonoBehaviour
2. {
3.     public void OnDestroy ()
4.     {
5.             SceneManager.LoadScene("Victory");      
6.     }
7. }

However, I also want to add a short delay of ten seconds before the game shows the victory scene, after the asteroid has been destroyed. I have tried all of the solutions that I could find and nothing works.

The problem is that the asteroid gets destroyed, and then the victory scene pops up immediately afterwards.

 

This is where coroutines are useful to learn: https://docs.unity3d.com/Manual/Coroutines.html

 

Just food for thought, depends on the requirements but it's not strictly necessary to load a scene only to show something else, even fullscreen. You could also have the "victory" GUI in the current scene and just activate it. This will provide a faster response.

 

This is the best I could do:

Code (CSharp):

1. public class Victory : MonoBehaviour
2. {
3.     IEnumerator NextLevelAfterWait()
4.     {
5.         yield return new WaitForSeconds(3.0f);
6.  
7.         SceneManager.LoadScene("Victory");
8.     }
9.  
10.     public void OnDestroy()
11.     {
12.             StartCoroutine(NextLevelAfterWait());
13.     }
14. }

It still doesn't work. It says coroutine couldn't be started because the game object 'Asteroid' is inactive!

 

As per the docs, coroutines get stopped when the game object they were started from is destroyed or made inactive. Calling StartCoroutine in OnDestroy fails both these qualifiers.

So you need to start the coroutine from a game object that is in neither of these states. If this component doesn't need to reference anything, then it could just create itself and then start the coroutine this way.

Code (CSharp):

1. public class Victory : MonoBehaviour
2. {
3.     IEnumerator NextLevelAfterWait()
4.     {
5.         yield return new WaitForSeconds(3.0f);
6.         SceneManager.LoadScene("Victory");
7.     }
8.  
9.     public void StartVictoryCoroutine()
10.     {
11.         StartCoroutine(NextLevelAfterWait());
12.     }
13.    
14.     public static void StartVictory()
15.     {
16.         var victoryGameObject = new GameObject("Victory");
17.         var victory = victoryGameObject.AddComponent<Victory>();
18.         victory.StartVictoryCoroutine();
19.     }
20. }

Then from anywhere else you can call

Victory.StartVictory()

.

 

Thanks, but I'm still not sure if I get it? Do I just attach the script to basically any other game object in the game, and that's it?

 

No, as mentioned you can just call

Victory.StartVictory();

from anywhere and it will create an instance of itself.

 

That works. I created the script, saved it and then I created this script and attached it to the asteroid:

Code (CSharp):

1. public class Destroy : MonoBehaviour
2.  
3.     public void OnDestroy()
4.     {
5.         Victory.StartVictory();
6.     }

It plays the victory scene now, after the asteroid has been destroyed.