Accessing game objects, that are part of another game object

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Hey guys

I am quite new to Unity and after playing around with some stuff, I have a small problem. Let's say I create an empty GameObject and add some objects to it. For example I can have a GameObject, or Prefab called PlayerCharacter, which contains 3 objects:

Model
SpellSpawnpoint
Camera

Now I add a script to PlayerCharacter, for example one creating spells. I need to access SpellSpawnpoint object to instantiate spell, but... how?

Answer 1

Best Answer

Answer by psycocrusher · Mar 30, 2013 at 01:33 AM

When the object is a child you can use transform.Find("") instead of gameObject.Find(""), it will look under the group automatically.

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Answer 2

Answer by Yokimato · Mar 28, 2013 at 03:58 PM

Welcome to Unity.

So you've hit a part that, for whatever reason, is not built in! It sucks, I know. Here's how you can work around it thoughL

 GameObject player = GameObject.Find("PlayerCharacter");
 GameObject spellSpawnPoint = null;
 
 foreach(Transform subTransform in player.transform) {
    if(subTransform.gameObject.name == "SpellSpawnpoint") {
       spellSpawnPoint = subTransform.gameObject;
       break;
    }
 }

It's not pretty by any means, but it works.

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Answer 3

Answer by robertbu · Mar 28, 2013 at 03:57 PM

How about:

GameObject.GetComponentInChildren()

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Yokimato · Mar 28, 2013 at 03:58 PM 1

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He's looking for the sub gameObject though, not the component. Although, my guess is that he's looking to ultimately end up at some component ;)

robertbu · Mar 28, 2013 at 04:02 PM 0

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If he just wants to find the game object, how about:

Transform.Find()

Yokimato · Mar 28, 2013 at 04:11 PM 1

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Which is another solution, but if I had to guess at the implementation of that method, it's searches the entire scene graph for it; albeit cleaner than $$anonymous$$e, I'd be nervous about performance depending how the frequency in which it's called.

robertbu · Mar 28, 2013 at 06:10 PM 0

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It does not search the entire scene. It's an instance, not a class method, so it only searches from the given transform.

Accessing game objects, that are part of another game object

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