Change detection through asset handles?

[torsteingrindvik]

Today I tried something along the lines of

q: Query<(&mut Transform, &Handle<MyAsset>), Changed<Handle<MyAsset>>

hoping that hot-reloading updates on the asset would trigger the change detection filter.

It didn't work. Is this expected since the asset is behind a handle? Is there an idiomatic way of doing this?

[mockersf]

Your filter would match if the handle itself changed on this entity, not if the assets pointed to by the handle changed.

When an asset changed, you'll get an event AssetEvent, up to you to keep a map handle <-> Vec

[torsteingrindvik]

I was hoping there wasn't a need as a user to do this mapping.

I saw now that in #11266 :

Change detection for assets would just be regular component change detection.

So I suppose I can observe that issue.