How do I access the States of an AnimationController with c#?

Question

Where I am right now: I have scriptable objects called AnimationPackage that define a list of Motions. I am using AnimationController.addMotion() to add these Motions to my AnimationController. They are created as new State with the name of the Motion used.

What I want to do: I need to add transitions between these new States. I assume I need to use AnimationController.SetStateEffectiveBehaviours() method to create those transitions.

My problem: While I do have the AnimationController and the name of the State, I do not have the State itself. How do I access it, to use it with SetStateEffectiveBehaviours()? I was unable to find a path from the AnimationController to its States so far, help.

Answer 1

Best Answer

Answer by toomasio · Jan 16, 2019 at 06:54 PM

I have some static methods you can use to get states in an animator. You may have to use unityeditor.internal though.

 public static AnimatorState[] GetAnimatorStateNames(Animator _animator)
     {
         AnimatorController controller = _animator ? _animator.runtimeAnimatorController as AnimatorController : null;
         return controller == null ? null : controller.layers.SelectMany(l => l.stateMachine.states).Select(s => s.state).ToArray();
     }
 
     public static AnimatorState[] GetAnimatorStateNames(AnimatorController _animator)
     {
         AnimatorController controller = _animator ? _animator : null;
         return controller == null ? null : controller.layers.SelectMany(l => l.stateMachine.states).Select(s => s.state).ToArray();
     }
 
     public static int FindStateLayer(AnimatorController _animCont, string _stateName)
     {
         for (int i = 0; i < _animCont.layers.Length; i++)
         {
             foreach (var child in _animCont.layers[i].stateMachine.states)
             {
                 if (child.state.name == _stateName)
                     return i;
             }
         }
         Debug.LogError("could not find layer with state name: " + _stateName + " in: " + _animCont.name);
         return 0;
     }

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CalamaBanana · Jan 16, 2019 at 07:17 PM 1

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Those states were hidden quite deep, thanks.

toomasio CalamaBanana · Jan 16, 2019 at 09:21 PM 0

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No problem :)

How do I access the States of an AnimationController with c#?

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