Reset the Skeleton animation

Romahaaa

I have implemented Spine characters animations using SkeletonAnimation component. Checking documentation and testing a while I didn't find an easy way to reset character to it's initial state <None> animations. As I understand <None> represents empty animation, but setting

_skeletonAnimation.AnimationState.SetEmptyAnimation(0, 0);

doesn't work as expected - I see the transitions between last animation and new one in spite of mix duration set to 0 (but seems it applied default one 0.2s)
Same behaviour appears setting to any other (non-empty) animation with a mix duration set to 0.
ClearTracks doesn't reset it immediately as well
I am using single track for all of my animations.

Is it a bug or I misunderstood something?

Harald

We are sorry for the trouble! This is indeed a bug, it has been fixed on the 4.0 branch, unfortunately we cannot apply it to 3.8 since these behaviour changes are to risky to apply without a version change.

You can see this forum posting for further info and with a link to the git commit, if you want to apply the changes to 3.8 yourself: Unexpected behavior with AddEmptyAnimation

Romahaaa

Unfortunately I didn't understand from that thread, how can I deal with that not waiting for v4.0 and not messing up with version migration. Is there any workaround?

Harald

The forum thread just mentioned the git commit with the necessary code changes:
https://github.com/EsotericSoftware/spine-runtimes/commit/fbd18ec0cbecae19e11ae6bc7f0be501fd16d45f
However, that requires some coding or git knowledge to apply the changes.

A workaround that I could think of would be to create an animation in Spine with no keys and call it empty, then you can call _skeletonAnimation.AnimationState.SetAnimation(0, "empty", false);.

Romahaaa

I understand what is commit and how to apply it, but the thread and your comment referencing to .java file changes.
I am on Unity (c#) and I am a developer, not an artist - I don't have Spine editor, only provided animations which doesn't work properly

Harald ha scritto
A workaround that I could think of would be to create an animation in Spine with no keys and call it empty, then you can call _skeletonAnimation.AnimationState.SetAnimation(0, "empty", false);.

as you understand I can't edit animations as well

Harald

I just noticed that the 4.0 code differences are too much anyway.

A simple workaround for 3.8 is setting AnimationState.Data.DefaultMix to the desired time:

var savedDefaultMix = skeletonAnimation.AnimationState.Data.DefaultMix;
skeletonAnimation.AnimationState.Data.DefaultMix = 0.0f;
skeletonAnimation.AnimationState.AddEmptyAnimation(0, 0, 0);
skeletonAnimation.AnimationState.Data.DefaultMix = savedDefaultMix;

This leads to the proper delay being used.

However, after reading your initial posting again, I assume that you are facing a different issue.
Actually after mixing out all anmations there should not be any remaining pose applied. Anyway, you can clear the bone locations by calling

skeletonAnimation.Skeleton.SetBonesToSetupPose();