How to wait for an animation to finish ?

Unity Engine
1

Guys , as the title suggests , how can I wait for an animation to finish, please answer in the most simplistic way cuz im pretty new to unity , thanks a lot, have a great day :smile:

1 Like
2

You have several options to achieve this.

  1. Add an Animation Event to your last key frame.
    See https://docs.unity3d.com/Manual/animeditor-AnimationEvents.html

  2. In Update you can continuously check if the animation has completed.
    See AnimatorStateInfo

  3. Start a coroutine that yields and waits for the animation to complete.

  4. Use StateMachineBehaviour

18 Likes
3

Thanks buddy

4

For AnimatorStateInfo, which property needs to be used to check if the animation has completed one cycle?

5

if normalizedtime > 1 then it has completed 1 cycle

6

I tried this:

if (animator.GetCurrentAnimatorStateInfo(0).normalizedTime > 1)
  {
            Debug.Log($"Animation over");
        }

I want to put it in a different method other than Update. It didn’t work. Any solution to the problem?

1 Like
7

you can put in other method but u must decide when u want to call that method

1 Like
8

You can also just use the animator transition to force it to finish.
8263269--1082004--upload_2022-7-8_11-15-47.png

Check Has Exit Time and then you can Move the 2nd animation to NOT overlap with the first. In the screenshot i share, there is a default overlap. If you move the little arrow handles and then move the bar, it can remove that overlap.

9

What CornySam suggests works, but if you don’t want a fancy transition into the next state, you can also do the following:

  • Enable ‘Has exit time’
  • Set ‘Exit time’ to 0
  • Set ‘Transition Duration’ to 0

8265657--1082427--upload_2022-7-9_21-1-30.png
8265657--1082427--upload_2022-7-9_21-1-30.png702×205 5.7 KB

8265657--1082427--upload_2022-7-9_21-1-30.png
8265657--1082427--upload_2022-7-9_21-1-30.png702×205 5.7 KB

2 Likes
10

I made a small package which you can use to wait for animations to start or finish inside coroutines. You can check it out here: GitHub - ComradeVanti/UnityWaitForAnim: A custom yield-instruction for Unity to wait for animations to finish

2 Likes
11

I’m getting some errors with webgl and the browser entering into a background process state (dropping frames), I’m currently polling the state info anyone know the best solution for such an issue?

 if (animator.GetCurrentAnimatorClipInfo(0)[0].clip.name == name && !animator.IsInTransition(0) && animator.GetCurrentAnimatorStateInfo(0).normalizedTime >= 0.99f)
12

If you have a transition between two states (animations), you need to wait until the transition is done to have the next clip information in th Animator.GetCurrentAnimatorStateInfo(0) and Animator.GetCurrentAnimatorStateInfo(0)

Do this after a Animator.SetTrigger() to wait for the transition:

// Wait for the transition to end
yield return new WaitUntil(() => _Animator.GetCurrentAnimatorStateInfo(0).normalizedTime <= 1.0f );

// Do some action

// Wait for the animation to end
yield return new WaitWhile(() => _Animator.GetCurrentAnimatorStateInfo(0).normalizedTime <= 1.0f);

// Do some action
5 Likes
13

Thanks @Fenikkel ! Your post was almost exactly what I wanted, but I did a tiny alteration, because I wanted to know the moment when the animation finished, so that I could trigger something as it started transitioning back to the idle state:

_Animator.SetTrigger("anim_state"); 
// Wait for the transition to end
yield return new WaitUntil(() => _Animator.GetCurrentAnimatorStateInfo(0).normalizedTime <= 1.0f );

// Do some action

// Wait for the animation to end
yield return new WaitWhile(() => _Animator.GetCurrentAnimatorStateInfo(0).IsName("anim_state"));

// Do some action

(as soon as the state name is no longer the triggered animation, assume the transition back to the idle state)

2 Likes
14

This is the one for me. I try not to use code when the functionality is already there. Thank you. Worked a treat.