How to force an animation state in an animator controller to go to the exact play percentage of an animation state of equal length in a different animator controller

Question

So i've been struggling all day trying to get an animation i made in blender to work in unity. The hoe is constrained to an armature (call it hoe_to_hands_armature), and the hands are also constrained to this very same armature. The character has his own armature (call it player_armature), which totals two armatures for the animation. Note that the armatures contain the animations. That is, the hoe_to_hands_armature "contains" the animation that move this hoe and hands about, creating the hoe movements in the animation. With the player_armature "containing" the animation that move the player about. I imported the player model and player_armature into unity, then did the same for the hoe model and hoe_to_hands armature. I then made an empty game object in the unity scene, and made the player_armature and hoe_to_hands_armature children of said empty. I also added separate animation controllers and avatars to both the player_armature, and the hoe_to_hands_armature. The animation clip of both armatures are the exact same length. The first loop of the animation works perfectly, successive loops see the player_armature progressively "falling behind" the hoe_to_hands_armature. So my question is, how do i force either animation state in the two separate anim controllers to "go" to the playtime/progression of the the other? Demo

Answer 1

Found a solution, by just comparing the 'percent completion' of one animation state with that of the other. If the difference between 'percent completions' is large enough, i simply play one of the two while using the normalized time of the other.

 using System;
 using UnityEngine;
 
 public class SyncPlaybackTimes : MonoBehaviour
 {
     public string playerAnimStateName;
     public string propAnimStateName;
     
     [SerializeField] private Animator _playerAnimator;
     [SerializeField] private Animator _propAnimator;
     
     private AnimatorStateInfo _playerAnimStateInfo;
     private AnimatorStateInfo _propAnimStateInfo;
     
     private void LateUpdate()
     {
         SyncPropWithCharAnim();
     }
 
     private void SyncPropWithCharAnim()
     {
         _propAnimStateInfo = _playerAnimator.GetCurrentAnimatorStateInfo(0);
         float charAnimCompletion = PlaybackPercent(_propAnimStateInfo);
         
         _playerAnimStateInfo = _propAnimator.GetCurrentAnimatorStateInfo(0);
         float propAnimCompletion = PlaybackPercent(_playerAnimStateInfo);
 
         float syncDiff = propAnimCompletion - charAnimCompletion;
         bool synced = Math.Abs(syncDiff) < 0.01f;
         if ( synced ) return;
 
         //Both the character and prop animations are the same length and ought to have started at the exact moment. So if the prop animation goes out of sync, simply re-sync by (re)playing the prop animation but started at the normalized time (progress) of the character animation
         _propAnimator.Play(propAnimStateName, 0, _playerAnimStateInfo.normalizedTime);
     }
 
     public float PlaybackPercent(AnimatorStateInfo animationStateInfo)
     {
         float normTime = animationStateInfo.normalizedTime;
         float percentComplete = normTime - Mathf.Floor(normTime);
         return percentComplete;
     }
 }

How to force an animation state in an animator controller to go to the exact play percentage of an animation state of equal length in a different animator controller

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