koobas.hobune.stream
Problems with Transform.Find and GameObject.find
Costume Swapping: Why can I not find certain objects in the hierarchy with Transform.Find or GameObject.Find, yet I can find them fine in the hierarchy search bar by the exact same name?
So I'm trying to find mesh Transforms on a model in the hierarchy (imports as a hierarchy of GameObjects) and I need to find particular children and turn them on/off. I'm doing this so I can do dynamic costume swapping for our game. The turning on/off of meshes works just fine (using MeshRenderer.enabled). So does finding SOME of the objects in the hierarchy (they're all deeply nested children of the GameObject with the Behaviour I'm searching from).
For instance, when I search for "myCharacterName_baton", it finds it using either GameObject.Find or Transform.Find (as it should). But when I search for "myCharacterName_hat", it can't find it. Both "myCharacterName_baton" and "myCharacterName_hat" are searchable from the Hierarchy Search Bar in the editor at run-time. They're also searchable not at run-time (nothing there is dynamically added/removed). Is this a known bug? Is there something horrendously simple I've overlooked? Any troubleshooting help would be appreciated.
Here's an example of what the code looks like (including the debug statements I'm using to confirm what's happening):
foreach (string costumePiece in costumeSet)
{
Transform pieceTransform = transform.Find (costumePiece);
Debug.Log (costumePiece + "; transform: " + pieceTransform, this);
GameObject go = GameObject.Find (costumePiece);
go.GetComponent<MeshRenderer> ().enabled = false;
}
It always breaks on the "GameObject go = GameObject.Find (costumePiece)" line because the Transform is null... well, always when I'm searching for the hat, it finds the baton just fine.
I realize too that it would be possible to create direct references to all those components and enable/disable them that way. Unfortunately, that's not very convenient for our artist because those references get destroyed every time he re-imports the models. Dynamically grabbing them at run-time creates a much better pipeline for him.
Please pick a $$anonymous$$ORE APPROPRIATE title!. CAPS LOC$$anonymous$$ will THROW people off FRO$$anonymous$$ ANSWERING your QUESTION :)
Are you just turning the renderer on and off, or are you deactivating the game objects? Neither GameObject.Find() nor Transform.Find() will find inactive game objects. If that is your problem, Google "unity3d find inactive game objects" for many hits concerning hacks and workarounds for the problem.
Sorry about the title - I was feeling incredibly frustrated. I'm just disabling the mesh renderer. The gameobjects are all active in the scene and their parents up the hierarchy are all active.
Can you perhaps post a screenshot of your hierarchy? I'm wondering what behavior you're searching from and it's relation to the desired objects
Here yah go: http://i.imgur.com/PlTbmIh.png
Those are the two GameObjects I was referring to. Both have $$anonymous$$eshRenderers on them. Casey_mesh_baton is findable while Casey_mesh_hat isn't.
Transform.Find does not recursively search, to my knowledge. Probably the editor has a small script which does. So you might do something like this (not tested):
Transform FindChild (string name, Transform t)
{
if (t.name == name)
return t;
foreach (Transform child in t)
{
Transform ct = FindChild (name, child);
if (ct != null)
return ct;
}
return null;
}
