[Solved] How to instantiate a component from another gameObject within DontDestroyOnload?

Unity Engine
1

Hi,
I have a singleton that it attached to a gameObject that hangs on runtime below the DontDestroyOnLoad.
I can instantiate it normally from any script that is in the scene with:

states = StateManager.Instance.GetComponent<StateManager>();

But one of the scripts where i want to instantiate the singleton as well, is also located in the DontDestroyOnLoad and with that one the above code doesnt seem to work.

Any idea?
thnx!

2

Generally in the singleton pattern, the Instance of something actually IS the component reference. You wouldn’t normally call GetComponent<> again, but I suppose it might be harmless, just extra typing.

In your case, are you perhaps looking for GetComponentInChildren() or GetComponentInParent()?

3

Cheers Kurt, the two gameObjects are on the root lvl of DontDestroyOnLoad
so neither really are parent/children.

If i click on the component in gameObject tes (see attacged image) it does open the stateManager which is located on the Scripts gameObject

5604490--579829--2020-03-18_19-05-59.jpg
5604490--579829--2020-03-18_19-05-59.jpg1920Ă—1040 279 KB

4

GetComponent finds a component ON the GameObject, what you drew is a field in one of your script with a reference to the StateManager.

From your code it looks like the reference is just the variable called “States.” Why don’t you just access that directly?

5

Yes i was trying to fill the “public StateManager states;” with the values from the statemanager so i can access each one of the values after with “states.IsControllable” “state.GameMode” etc guess its my old way of doing things.

I changed the code to directly access “StateManager.Instance.Iscontrollable = isControllable;” and that seems to work.

thanks a lot for pointing me in the right direction!

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