Changes to prefab parameters not being saved

Question

In Unity 3.5.0b6 I have a script attached to a prefab with some Serialized floats. When I change the floats in the unity editor, they update fine. But any changes I make are not saved to the .prefab file

Answer 1

Answer by stephanrmiller · Feb 08, 2012 at 07:10 PM

I'm not sure I completely understand your problem, but if it's something like this:

You have a Player prefab with a PlayerStats.cs script attched to it PlayerStats.cs has a maxHealth attribute which was originally 100, but now you edited it so that it's 50 You expect the Player prefab to update maxHealth to 50, but it doesn't :(

Then try commenting out the attribute in the script, going back into the Unity editor (pulls in the script, removes the attribute from the prefab), then go back to the script and un-comment it, then go back into Unity and it should pull in the new script with the new value for the attribute.

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gabs · Feb 09, 2012 at 08:56 AM 0

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That's not the case. Let me show what happens in Unity 3.5b: 1 - Have a prefab on a scene; 2 - Run a custom wizard script that alters some values on the instantiated prefab (not the prefab itself); 3 - Save the scene; 4 - Hit play. Now the prefab instance values were reverted to the prefab original values and the changes your wizard script made are lost forever :(

SInce this newest Unity version, prefab instances are only saving values that you modify by hand. Wizard scripts became broken.

stephanrmiller · Feb 09, 2012 at 01:12 PM 0

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Hmm, if it worked in the previous version, then it looks like a bug. Has anyone reported it?

gabs · Feb 09, 2012 at 02:31 PM 0

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I'll setup a project to reproduce this, then I'll submit.

XtOf · Feb 21, 2012 at 02:23 PM 0

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Not a valid solution for us anyway because it happens on a "uLink Network View" component that is not editable by script.

stephanrmiller · Feb 21, 2012 at 02:33 PM 0

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Oh, I don't have any experience with uLink...

Answer 2

Answer by GameGuy · Mar 12, 2012 at 02:44 PM

You can change the floats in your script to the "correct" value, then select the prefab in ProjectView and chose revert to Prefab.

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Sat · Mar 12, 2012 at 02:47 PM 0

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This does not solve the problem, which is that the changes made by editor scripts on prefabs are not saved.

GameGuy · Mar 12, 2012 at 02:50 PM 0

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Thats true, but a better workaround then running through 80 Scenes by hand, much faster and less prone.

Answer 3

Answer by smarcus · Apr 01, 2012 at 05:05 PM

I'm seeing something similar when I convert a project from 3.4.2... some of my prefabs are "going stock" and reverting to default settings across the board.,

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Wolfram · Apr 19, 2012 at 06:03 PM 0

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If you still have a 3.4 copy of your project, here is a script that fixes this problem: http://forum.unity3d.com/threads/132489-Resetting-PrefabOverride-Flags-for-Instantiated-Prefabs-in-3.4.x?p=897802&viewfull=1#post897802

Answer 4

Answer by Wolfram · Apr 17, 2012 at 04:25 PM

Maybe this discussion is helping? They suggest calling EditorUtility.SetDirty(arg) when using Editor scripts to modify prefabs/prefab instances: http://unity3d.qatohost.com/questions/62455/how-do-i-make-fields-in-the-inspector-go-bold-when.html

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Answer 5

Answer by SZApo · Jul 07, 2012 at 12:56 AM

I've found a solution to similar problem: 1) Make some changes in the prefab instance using editor script. 2) Unlink prefab instance: PrefabUtility.DisconnectPrefabInstance(yourInstance); 3) Link it with its prefab again: PrefabUtility.ReconnectToLastPrefab(yourInstance);

After these manipulations it can be saved well and shows in bold in editor, and instances holds all their links.

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Changes to prefab parameters not being saved

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