Support TextureAtlas handles when deriving AssetCollection

[NiklasEi]

#[derive(AssetCollection)]
struct MyAssets {
    #[asset(texture_atlas(cell_width = 100., cell_height = 96., columns = 8, rows = 1))]
    #[asset(path = "textures/female_adventurer.png")]
    female_adventurer: Handle<TextureAtlas>,
}

[LeonLiuY]

Hi, I can run the example atlas_from_grid.rs successfully in this repo. However when I do it in my project I get:

error[E0425]: cannot find value `atlases` in this scope

What could be wrong with my usage?

[NiklasEi]

You might have turned off the default features?

[LeonLiuY]

I don't know you mean which default features.

I'm just using your template https://github.com/NiklasEi/bevy_game_template and change the TextureAssets to use TextureAtlas in loading.rs and it reports that error.

And there is bevy = { version = "0.5.0", default-features = false }, I tried enable default features it still has that error.

If you mean default features of bevy_asset_loader then I think it's enabled.

[NiklasEi]

Thank you, I can reproduce this issue and will look into it :)

[kirandesimone]

What was the fix for this issue? I'm currently having the same problem. I'm using v0.8.0

[NiklasEi]

From version 0.7 on the render feature is no longer a default feature. Did you enable it?

The original issue with the feature was a bug in the derive macro and has been fixed.

[kirandesimone]

ahh I see ok

This is my cargo.toml file

[features]
render = ["bevy_asset_loader/render"]

[dependencies]
bevy = "0.6.0"
bevy_asset_loader = "0.8.0"

[NiklasEi]

With that Cargo.toml you will need to activate the render feature of your own crate. Is it working then?

[kirandesimone]

hmmm not sure I follow, sorry I've never used features before. I just tried to activate it with #[cfg(feature = "render")] but no luck and it inactivates the code??

#[cfg(feature = "render")] #[derive(AssetCollection)] pub struct DungeonTileset { #[asset(texture_atlas(tile_size_x=16., tile_size_y=16., columns=16, rows=16))] #[asset(path="assets/DungeonTileset_v4.png")] sprite_sheet: Handle<TextureAtlas> }

I also tried putting over the mod but no cigar.

[kirandesimone]

AHHH I GOT IT. ok, thanks a ton for your help!

Just in case someone else stumbles upon this issue:
bevy_asset_loader = { version = "0.8.0", features = ["render"] }