C# to set trigger on animator components of all children

Question

I know this is probably simple. Can someone give me some C# example code for how to do the following:

I have a game object acting as a container for two cubes (call it "Parent"). Each of the cubes has an animator component on it, each using the same animator controller. That controller uses the parameter "AnimateNowParam" to transition from one state to another. I have the following script on Parent. But it doesn't cause both cubes to changes animation states. It only causes the first cube to change animation states. How do I get it to cause both cubes to change states?

 using UnityEngine;
 using System.Collections;
 
 public class AnimateNow : MonoBehaviour
 {
     Animator anim;
     int buttonHash = Animator.StringToHash("AnimateNowParam");
 
     void Start ()
     {
         anim = GetComponentInChildren<Animator>();
     }
 
     public void AnimateNowFunction()
     {
         anim.SetTrigger (buttonHash);
     }
 }

Answer 1

Answer by red-sight · Oct 17, 2016 at 01:16 PM

GetComponentsInChildren is what you want: https://docs.unity3d.com/ScriptReference/Component.GetComponentsInChildren.html

This will return an array that you can either iterate over with a for loop or use forEach with a delegate method.

I've not ran this but it should be close:

  using UnityEngine;
  using System.Collections;
  
  public class AnimateNow : MonoBehaviour
  {
      Animator[] anims;
      int buttonHash = Animator.StringToHash("AnimateNowParam");
  
      void Start ()
      {
          anims = GetComponentsInChildren<Animator>();
      }
  
      public void AnimateNowFunction()
      {
          foreach (Animator anim in anims ) 
             {
               anim.SetTrigger (buttonHash);        
             }
       }

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tylerlybb · Oct 19, 2016 at 02:41 AM 0

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I tried your code and it doesn't work. If you have any ideas. But thank you so much for helping me!

tylerlybb · Oct 19, 2016 at 03:29 AM 0

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When I use your code exactly I get this error:

Assets/AnimateNow.cs(16,40): error CS1041: Identifier expected

red-sight tylerlybb · Oct 19, 2016 at 10:35 AM 0

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Cool I've updated it, there was a syntax error

tylerlybb red-sight · Oct 19, 2016 at 11:21 AM 0

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Thank you, but I still get an error, though a different one:

Assets/AnimateNow.cs(79,5): error CS8025: Parsing error

Could it be that when it gets to the looped code ...

anim.SetTrigger(buttonHash);

... it doesn't know what "anim" is? With my very limited knowledge of C# it seems like maybe we haven't told it what "anim" is, only "anims".

Answer 2

Answer by tylerlybb · Oct 18, 2016 at 02:00 AM

I tried your code and it doesn't work. If you have any ideas. But thank you so much for helping me!

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C# to set trigger on animator components of all children

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