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Question by Razputin · Nov 06, 2015 at 09:18 PM · colliderarraytriggerparentchild

Enable Multiple Box Collides From Parent Object

I have a box collider acting as a trigger, when the player enters this trigger i'd like to enable the box colliders of the 5 child objects I have, as well as their sprite renderers. This is what I have so far but it's not quite right.

 using UnityEngine;
 using System.Collections;
 
 public class EnableObject : MonoBehaviour {
 
     private BoxCollider[] boxColliders;
     private SpriteRenderer[] sR;
     private bool run = false;
 
     void Update()
     {
         if(run)
         {
             boxColliders = GetComponentsInChildren<BoxCollider>();
             sR = GetComponentsInChildren<SpriteRenderer>();
             boxColliders.enabled = true;
             sR.enabled = true;
         }
     }
 
     void OnTriggerEnter(Collider other)
     {
         if(other.GetComponent<Collider>().tag == "Player")
         {
             run = true;
         }
     }
 }
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avatar image Mako-Infused · Nov 06, 2015 at 11:33 PM 0
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What exactly is not right about it?

avatar image Razputin Mako-Infused · Nov 06, 2015 at 11:54 PM 0
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both boxcollider[] and spriterenderer[] have no definition for enabled.

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Answer by Statement · Nov 07, 2015 at 12:01 AM

 boxColliders = GetComponentsInChildren<BoxCollider>();
 sR = GetComponentsInChildren<SpriteRenderer>();

So each call return an array of box colliders and sprite renderers.

 boxColliders.enabled = true;
 sR.enabled = true;

Arrays can't be enabled. BoxCollider and SpriteRenderer can, though.

 foreach (var collider in boxColliders)
     collider.enabled = true;
 
 foreach (var s in sR)
     s.enabled = true;

You have to treat collections and single instances as different types. There's a set of members exposed for arrays, and you have to get an item from the array to perform work on a particular item.

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avatar image Razputin · Nov 07, 2015 at 12:04 AM 0
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Ahh okay thank you!

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Answer by zellimzel · Feb 10, 2016 at 01:50 AM

Very nice and informative article here. I also can share my experience in files merging. Just look at the service http://goo.gl/ONR66c. Its pretty easy to use.

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