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Question by Hypern0va · May 18, 2015 at 10:18 AM · c#parent-child

How to change the color of a child through its parent?

Hello, good evening. I was wondering if it is possible to change the color of a childs mesh along with its parent. I am currently making an RTS (Or rather, trying to.) and when I select an object which is parented to another mesh the parented mesh changes color but leaves the children unaffected. Here is the code used to change its color:

 using UnityEngine;
 using System.Collections;
 
 public class Unit : MonoBehaviour {
 
     public bool selected = false;
 
     private void Update () {
         if (renderer.isVisible && Input.GetMouseButton(0)) {
             Vector3 camPos = Camera.main.WorldToScreenPoint(transform.position);
             camPos.y = CameraSelect.InvertMouseY(camPos.y);
             selected = CameraSelect.selection.Contains(camPos);
         }
         if (selected) {
             renderer.material.color = Color.red;
         }else{
             renderer.material.color = Color.white;
         }
     }
 }
 

And here is a picture of the parent and the children in the Hierarchy:

alt text

And here is the parent being selected (In red) and the children not:

alt text

Is it possible to see if the object is parented to anything and then get those game objects to change color? sorry again if this is a stupid question with a simple answer, thank you for your time.

capture.png (3.9 kB)
capture1.png (73.4 kB)
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Answer by $$anonymous$$ · May 18, 2015 at 10:21 AM

Using gameObject.GetComponentsInChildren<>() you can get a list of all children Renderer components. You can then loop through and change the color of all the ones you want.

Check it out:

http://docs.unity3d.com/ScriptReference/Component.GetComponentsInChildren.html

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avatar image Hypern0va · May 18, 2015 at 11:04 AM 0
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Ah, much thanks. I hadn't even heard of the GetComponentsInChildren method. But its all sorted now, So thanks for bringing it up.

avatar image $$anonymous$$ · May 18, 2015 at 12:07 PM 0
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