[3.x] Add animation reset track feature

[RandomShaper]

Version of #43115 for 3.x.

Probably this would be worth merging just once 3.2.4 is out, because it may benefit from some testing so both 4.0 and 3.2.5 can benefit from any fixes for issues discovered on it.

UPDATE: When #45810 is fixed for 4.0, the fix will be integrated here. Switching to draft until that happens. Done.

[RandomShaper]

Rebased!

[akien-mga]

Thanks!

[Torguen]

I have no idea what this suggestion consists of, there is no information about it. Only in the title something is said minimally but no details.

[akien-mga]

Check the master pull request which was linked in the first post:

Version of #43115 for 3.x.

[sosasees]

in most of my AnimationPlayer nodes before this feature existed,
the first thing i did before animating any previously unanimated property
was to add the initial state of that property to a single-frame animation which I always liked to name "Start" or "Init" or "Idle".

now this feature is automating this task by its own "Reset" animation.
this is something i didn't know i needed until i read it in the changelog and got excited.

thank you for this feature.

[chucklepie]

Maybe I'm being a bit dumb, I'm on latest 3.4.2 but I have absolutely no idea how to use this. Create a new or existing animation player and 'apply reset' is greyed out an no 'RESET' animation is created. Create a new animation with properties and add a key frame, 'apply reset' is blank and no new 'RESET' animation is created. I add a new animation called 'RESET' and it makes it a reset showing the reset icon but it's blank. Repeat the above and nothing happens, it's still blank.

I thought I read 'RESET' is auto-created on first save as I have reset on save set, nothing happens for me.

I read about 'Create Reset Track(s)', but this is nowhere to be found.

[Calinou]

@chucklepie The RESET track should not be created manually. The editor will ask you to create it automatically when you insert a new track in an existing animation by clicking the key icon next to a property in the inspector. Inserting a new key in an existing track will not make this dialog appear.

[chucklepie]

Ah, when I create a track I usually do it the longer way - 'add track' then select the node then select property. How is this different to clicking the key icon as they both do the same thing, but only one adds a reset entry?

[Calinou]

Ah, when I create a track I usually do it the longer way - 'add track' then select the node then select property. How is this different to clicking the key icon as they both do the same thing, but only one adds a reset entry?

This is a known issue, see #55438.