Creating a new Mecanim parameter from code

Hello!

Is anyone aware if it's possible to create new parameters for a Mecanim animation controller from code? Either by using an Editor script, or even better at runtime.

Thanks,
David

 

Ok, I solved it. The key is to cast the Runtime Animation Controller the Animator class provides to an AnimationController and then it's easy to add new parameters using the .AddParameter method.

(only possible in the Editor, because it uses UnityEditor.Animations)

Code (CSharp):

1. using UnityEngine;
2. using UnityEditor.Animations;
3.  
4. public class ParameterTest : MonoBehaviour
5. {
6.     protected void AddParameter ()
7.     {
8.         // We first need to get the animator attached to this object
9.         // and then cast it's runtimeAnimationController
10.         // to an AnimationController
11.         Animator animator = GetComponent<Animator> ();
12.         AnimatorController animatorController = (AnimatorController) animator.runtimeAnimatorController;
13.  
14.         // Method 1, keeps reference to the parameter
15.  
16.         AnimatorControllerParameter parameter = new AnimatorControllerParameter ();
17.         parameter.type = AnimatorControllerParameterType.Bool;
18.         parameter.name = "NewParameter1";
19.  
20.         animatorController.AddParameter (parameter);
21.  
22.         // Method 2, shorter, but without a reference
23.  
24.         animatorController.AddParameter ("NewParameter2", AnimatorControllerParameterType.Float);
25.     }
26. }