how to add prefab to gameobject?

Archived Forums Questions & Answers
1

I’m trying to have ‘foundation’ as a child of ‘empty’ but with my code it doesn’t do that but it also gives no errors, what am I doing wrong?

public List<GameObject> foundations = new List<GameObject>();
public List<GameObject> levels = new List<GameObject>();
public List<GameObject> roofs = new List<GameObject>();

public BuildSystem buildSystem;

GameObject empty;

private int x = 0;

public void CreateNewBuilding()
{
    x++;
    empty = new GameObject("Building" + x);
}

public void StopBuilding()
{
    Destroy(empty);
    x--;
}

public void AddFoundation(GameObject foundation)
{
    foundations.Add(foundation);
    buildSystem.NewBuild(foundation);
    foundation.transform.SetParent(empty.transform);
}
2

Try to use transform.SetParent(wantedParent), store the new foundation that was instanced and after spawn assign the parent to it. hope it helps.

docs: Unity - Scripting API: Transform.SetParent

3

A comment – instead of new GameObject it’s almost always better to Instantiate a prefeb. Even for an empty you probably want it set to a different layer, and want a script on it at (at least a data-only script). You can do that in code, but a prefab makes it easier.

&nbsp

As far as setting a parent, any way works. If G is a gameObject and Empty is another, then `G.transform.parent=Empty.transform;` is fine or `G.transform.SetParent(Empty.transform);` or when you Instantiate G use the option to set a parent. I've used them all and they're the same. If there's a problem it's something else. Look at the errors -- is it saying something is null? Maybe foundation isn't being created?