How can I access specific children of a prefabs I initiate in a code

Question

I'm actually developping my first game on Unity and as I do some codes to initiate a prefabs. The thing is that I still need to have access or at least create a GameObject variable to refer to the childs of the prefabs I previously created.

To shorten what I ask:

I want to create a prefabs during runtime with C# (No need to specify anyway to generate it, I have my own idea) I want to have access to the prefabs children I want to be able to modify some parts of the prefabs children

And if I'm still not clear enough: I want to initiate a shoe. I want to have access, for example, to the lace Prefabs of the shoe I have initiated. But I also want to have access to other parts individually (Like the sole of it) to be able to color them individually! I already have made the code to color them, I only need to get the way to initiate the shoe and get his children individually to modify them as well!

If you still don't understand me, I can try to make another explanation on demand! Thanks for your help!

Answer 1

Best Answer

Answer by Nazirzadeh · Feb 06, 2018 at 01:50 AM

You can try Transform.Find or GetComponentInChildren

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Meuleuh · Feb 06, 2018 at 02:07 PM 0

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Well, I've tried to simply use them but the thing is that

For the Transform.Find, I will try it! I've never seen it before so I never tried it!

For the GetComponentInChildren, I think it will only refer you to the first children prefabs but I need to have access to five of them every time I instantiate the shoe prefabs.

Thanks you anyway and if I'm wrong on what I say, please tell me how to use them as I want to!

Answer 2

Hello there,

If you have a reference to the GameObject, it's very simple. You could do:

     public GameObject prefab_shoe = null;
     public Vector3 v3_spawnPos = Vector3.zero;
 
     private void CreateShoe()
     {
         GameObject newShoe = Instantiate(prefab_shoe, v3_spawnPos, Quaternion.identity) as GameObject;
 
         List<GameObject> laces = new List<GameObject>();
         List<GameObject> sole = new List<GameObject>();
 
         for (int i = 0; i < newShoe.transform.childCount; ++i)
         {
             Transform currentItem = newShoe.transform.GetChild(i);
 
             //Search by name
             if (currentItem.name.Equals("laces"))
             {
                 laces.Add(currentItem.gameObject);
                 continue;
             }
             if (currentItem.name.Equals("sole"))
             {
                 sole.Add(currentItem.gameObject);
                 continue;
             }
 
             //Search by tag
             if (currentItem.CompareTag("laces"))
             {
                 laces.Add(currentItem.gameObject);
                 continue;
             }
             if (currentItem.CompareTag("sole"))
             {
                 sole.Add(currentItem.gameObject);
                 continue;
             }
 
             //Search by component
             if (currentItem.GetComponent<Laces>() != null)
             {
                 laces.Add(currentItem.gameObject);
                 continue;
             }
             if (currentItem.GetComponent<Sole>() != null)
             {
                 sole.Add(currentItem.gameObject);
                 continue;
             }
         }
 
         // Do something with the results here
         if(laces.Count > 0)
         {
             // Do something with the laces
         }
 
         if(sole.Count > 0)
         {
             // Do something with the soles 
         }
     }

This way, you get every single child that corresponds to our criteria (I'm not sure why you would have multiple soles, but you could have multiple buttons for example).

Hope that helps!

Cheers,

~LegendBacon

How can I access specific children of a prefabs I initiate in a code

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