Question Script Execution Order settings seem to be ignored

I looked at this -> https://docs.unity3d.com/Manual/class-MonoManager.html

I've added a script and set it so it executes before the "default" time (gave it a negative number), but other MonoBehaviors in the scene execute before this script. Their Awake methods are called before the script I set to execute before the "default time".

Any tips?

 

The execution order only applies to "batches" of script being initialized. That's when a scene is loaded or when something is instantiated. So if you e.g. load multiple scenes, the order only applies to each individual scene, or when you instantiate a prefab while loading, the prefab's OnEnable/Awake will always be called immediately on instantiation. Some scripts might also use the undocumented DefaultExecutionOrder attribute, in which case I think they don't appear in the project settings. Also make sure you apply the changes and wait for the recompile/reload to complete, this is required for the order to apply.

 

So if I set a script to execute before the "default time", shouldn't its Awake method be called before the other MonoBehavior classes in my scene?

 

I've given up on this so I created an event on GameController that I named ReadyToGo, then the GameController waits until the event is fired to continue initialization.

 

Yes. They are both in the same scene and neither of them is being instantiated? And you've put a

Debug.Log

in both

Awake

methods to check the order?

 

Both scripts are in the same scene. I put a Debug.Log in each class's Awake. In the editor, the script set to execute before "Default Time" does execute first, but only when I place it on a separate GameObject. When I test on device (Android) the script set to execute before "Default Time" does not execute first.

 

Assuming your setup is correct it should not happen. Just to be sure:
1. Both scripts are already on the scene (not instantiated)
2. Both scripts have got negative order (the first one is lowest number: -100, -50, 0, 20, 60)
3. Both game objects are enabled and active from the very beginning

 

1. Both scripts are already on the scene (not instantiated)
** That is correct

2. Both scripts have got negative order (the first one is lowest number: -100, -50, 0, 20, 60)
** Only one script is added to Script Execution Order and it's set to -1200.

3. Both game objects are enabled and active from the very beginning
** That is correct

And the one script that is added to Script Execution Order is having its Awake called after the script that is not added to Script Execution Order when running on Android...

 

Have you tried with the undocumented attribute?

What's your end goal here too?

 

I have not tried the undocumented approach.

My end goal is to have a script that registers services before all other MonoBehaviors execute their Awake methods.

 

Can you do this outside of the monobehaviour realm? Such as with a scriptable object stored in pre-loaded assets, or with

[RuntimeInitializeOnLoadMethod]

?

 

Try it perhaps it will work, but send the bug ticket anyway, I can't see reason why it should not work.

 

If no other way is helping with script ordering, the only thing I can think is to Poll() them. Meaning have the script(Awake()?) run it's logic, then tell other scripts to "technically" do their Awake() with a function call. Then the order is simply what script you put first to Poll and so on.

 

thank you all. I'll try some of the options you mentioned when I have time. But for now I have the main class in the scene calling an init method in the script that registers services.

 

I tried using
[RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]. And it has the same issue. In the editor it works, but not on Android.

 

In case my explanation made no sense:

Code (CSharp):

1. public class FirstRunScript
2. {
3.     void Awake()
4.     {
5.         // my Awake logic
6.         ScriptOrder1.RunMyAwake();
7.         ScriptOrder2.RunMyAwake();
8.         ScriptOrder3.RunMyAwake();
9.         ScriptOrder4.RunMyAwake();
10.     }
11. }
12.  
13. public class ScriptOrder1
14. {
15.     public void RunMyAwake()
16.     {
17.         // my Awake logic
18.     }
19. }
20.  
21. // etc...
22.  

 

I think your explanation made more sense than your code snippet here ^^. It doesn't really help when you post broken or incomplete examples.

 

Yeah, wasn't sure.. everything I look for on Polling through google gives a ton of weird results, but it's just what I heard that being called.

Kind of like how you make a manager script that runs every transform in a List, versus each class having it's own Update and moving it's own transform. I keep hearing how much faster it is, since calling each "Update()" chews up time.. But haven't got around to benchmarking it yet..

But as far as a particular order, if you command it, it will do.

 

[RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)] is working for a static method in a non MonoBehavior class. Works in the editor and on Android. But when it's applied to a non static method it's not working on Android.

 

It should only work on static methods. It obviously can't run on a non-static method as how would it locate live instances to call the method on?

 

What is your unity version?
Could you pack your current setup as unity package and share here so we can test it?
Also screenshot of your execution order settings.

 

The Unity version is 2022.3.7f1

I can not send the project.

I've attached a screenshot. My script is "RegisterServicesManager"

 

I've tried a few scripts, all had the same result. Seems to work in Editor Play Mode. Doesn't work on Android. I haven't tried testing with a new and clean Unity project.

 

I do not ask for the whole project, but one folder with example scene, but it's fine.