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Question by Vega-apps · Aug 16, 2017 at 05:01 PM · c#instantiatescript.prefabsmodify

How can i get a script of a non instantiate prefab?

Hi,

I need change the values of a prefab before instantiate it. It's possible or i need to save N prefab with different values each one?

Because the prefab its the same, but i want modify his mass of rigidbody to create different gravities for each instantiate;

Thanks!

C#, Unity 2017.1.0f3

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Answer by UnityCoach · Aug 16, 2017 at 05:52 PM

You can't modify a Prefab's values at runtime.

I guess you're getting those values from Awake or Start method.

You could call a custom "Init" method on your instantiated objects after instantiation.

To be honest, you'll probably have to rewrite part of your code. While you're at it, you could add some Object Pooling. This will lead you to adding custom Init (or OnEnable) initialisation.

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avatar image Vega-apps · Aug 16, 2017 at 06:19 PM 0
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Can i get instantiated prefab, change values on it and save to replace older prefab? thanks UnityCoach.

avatar image UnityCoach Vega-apps · Aug 17, 2017 at 11:51 PM 0
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You can use PrefabUtility to modify/save Prefabs. But this will only be available in the Editor.

At runtime, Prefabs are nothing but serialised game objects.

avatar image Vega-apps UnityCoach · Aug 18, 2017 at 04:44 PM 0
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I solved the problem with an update of Phisics.gravity. thanks

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Answer by Camilohoyos16 · Aug 16, 2017 at 05:12 PM

The values of each prafabs will mantain in each instantiating. So, I dont see a problem if you change it after intantiated, but if you want to do what you say, you need a reference of prefeab in the script, like drag and drop in the inspector, and change the values that you mention and then instantiate that prefab. I dont so sure about the last solution.

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avatar image Vega-apps · Aug 16, 2017 at 05:22 PM 0
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I want to change the values before instantiating because the prefab is a bullet, and on instantiate i need know the mass and velocity to calculate gravity. So i can't modify values after instantiated it. Thanks CamiloHoyos16.

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