bevy/crates
Brian Reavis c9e1fcdb35
Added AssetLoadFailedEvent, UntypedAssetLoadFailedEvent (#11369)
# Objective

This adds events for assets that fail to load along with minor utility
methods to make them useful. This paves the way for users writing their
own error handling and retry systems, plus Bevy including robust retry
handling: #11349.

* Addresses #11288
* Needed for #11349

# Solution

```rust
/// An event emitted when a specific [`Asset`] fails to load.
#[derive(Event, Clone, Debug)]
pub struct AssetLoadFailedEvent<A: Asset> {
    pub id: AssetId<A>,
    /// The original handle returned when the asset load was requested.
    pub handle: Option<Handle<A>>,
    /// The asset path that was attempted.
    pub path: AssetPath<'static>,
    /// Why the asset failed to load.
    pub error: AssetLoadError,
}
```

I started implementing `AssetEvent::Failed` like suggested in #11288,
but decided it was better as its own type because:

* I think it makes sense for `AssetEvent` to only refer to assets that
actually exist.
* In order to return `AssetLoadError` in the event (which is useful
information for error handlers that might attempt a retry) we would have
to remove `Copy` from `AssetEvent`.
* There are numerous places in the render app that match against
`AssetEvent`, and I don't think it's worth introducing extra noise about
assets that don't exist.

I also introduced `UntypedAssetLoadErrorEvent`, which is very useful in
places that need to support type flexibility, like an Asset-agnostic
retry plugin.

# Changelog

* **Added:** `AssetLoadFailedEvent<A>`
* **Added**: `UntypedAssetLoadFailedEvent`
* **Added:** `AssetReaderError::Http` for status code information on
HTTP errors. Before this, status codes were only available by parsing
the error message of generic `Io` errors.
* **Added:** `asset_server.get_path_id(path)`. This method simply gets
the asset id for the path. Without this, one was left using
`get_path_handle(path)`, which has the overhead of returning a strong
handle.
* **Fixed**: Made `AssetServer` loads return the same handle for assets
that already exist in a failed state. Now, when you attempt a `load`
that's in a `LoadState::Failed` state, it'll re-use the original asset
id. The advantage of this is that any dependent assets created using the
original handle will "unbreak" if a retry succeeds.

---------

Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
2024-01-17 21:12:00 +00:00
..
bevy_a11y resolve all internal ambiguities (#10411) 2024-01-09 19:08:15 +00:00
bevy_animation Skip alloc when updating animation path cache (#11330) 2024-01-13 19:33:11 +00:00
bevy_app resolve all internal ambiguities (#10411) 2024-01-09 19:08:15 +00:00
bevy_asset Added AssetLoadFailedEvent, UntypedAssetLoadFailedEvent (#11369) 2024-01-17 21:12:00 +00:00
bevy_audio Remove the ability to ignore global volume (#11092) 2024-01-15 15:31:54 +00:00
bevy_core Replace or document ignored doctests (#11040) 2024-01-01 16:50:56 +00:00
bevy_core_pipeline Exposure settings (adopted) (#11347) 2024-01-16 14:53:21 +00:00
bevy_derive Reexport winit::platform::android::activity::* in bevy_winit (#11011) 2023-12-19 20:15:03 +00:00
bevy_diagnostic Describe purpose of bevy_diagnostic (#11327) 2024-01-14 20:17:26 +00:00
bevy_dylib Add [lints] table, fix adding #![allow(clippy::type_complexity)] everywhere (#10011) 2023-11-18 20:58:48 +00:00
bevy_dynamic_plugin Add [lints] table, fix adding #![allow(clippy::type_complexity)] everywhere (#10011) 2023-11-18 20:58:48 +00:00
bevy_ecs Remove duplicate #[automatically_derived] in ECS macro (#11388) 2024-01-17 16:52:45 +00:00
bevy_ecs_compile_fail_tests Dynamic queries and builder API (#9774) 2024-01-16 19:16:49 +00:00
bevy_encase_derive Add [lints] table, fix adding #![allow(clippy::type_complexity)] everywhere (#10011) 2023-11-18 20:58:48 +00:00
bevy_gilrs Remove unnecessary path prefixes (#10749) 2023-11-28 23:43:40 +00:00
bevy_gizmos Warn when bevy_sprite and bevy_pbr are not enabled with bevy_gizmos (#11296) 2024-01-14 13:51:14 +00:00
bevy_gltf Use glam for computing gLTF node transform (#11361) 2024-01-16 14:33:19 +00:00
bevy_hierarchy Inline trivial methods in bevy_hierarchy (#11332) 2024-01-13 22:20:50 +00:00
bevy_input Extend Touches with clear and reset methods (#10930) 2024-01-04 23:13:29 +00:00
bevy_internal Revert "Implement minimal reflection probes. (#10057)" (#11307) 2024-01-12 20:41:51 +00:00
bevy_log Add support for updating the tracing subscriber in LogPlugin (#10822) 2024-01-15 15:26:13 +00:00
bevy_macro_utils Bump toml_edit in build-template-pages tool (#11342) 2024-01-16 05:23:18 +00:00
bevy_macros_compile_fail_tests Standardize toml format with taplo (#10594) 2023-11-21 01:04:14 +00:00
bevy_math Remove Default impl for CubicCurve (#11335) 2024-01-14 04:40:37 +00:00
bevy_mikktspace Update glam, encase and hexasphere (#11082) 2024-01-08 22:58:45 +00:00
bevy_pbr Exposure settings (adopted) (#11347) 2024-01-16 14:53:21 +00:00
bevy_ptr Simplify equality assertions (#10988) 2023-12-16 23:58:41 +00:00
bevy_reflect Update glam, encase and hexasphere (#11082) 2024-01-08 22:58:45 +00:00
bevy_reflect_compile_fail_tests Fix nested generics in Reflect derive (#10791) 2023-11-29 01:46:09 +00:00
bevy_render Make DynamicUniformBuffer::push accept an &T instead of T (#11373) 2024-01-16 20:51:56 +00:00
bevy_scene Change Entity::generation from u32 to NonZeroU32 for niche optimization (#9907) 2024-01-08 23:03:00 +00:00
bevy_sprite Texture Atlas rework (#5103) 2024-01-16 13:59:08 +00:00
bevy_tasks Async channel v2 (#10692) 2024-01-15 19:23:00 +00:00
bevy_text Texture Atlas rework (#5103) 2024-01-16 13:59:08 +00:00
bevy_time Add paused run condition (#11313) 2024-01-12 22:18:57 +00:00
bevy_transform Rename "AddChild" to "PushChild" (#11194) 2024-01-04 16:06:14 +00:00
bevy_ui fix occasional crash moving ui root nodes (#11371) 2024-01-17 16:53:27 +00:00
bevy_utils Add static assertions to bevy_utils for compile-time checks (#11182) 2024-01-02 22:08:30 +00:00
bevy_window Remove CanvasParentResizePlugin (#11057) 2023-12-21 20:01:22 +00:00
bevy_winit Change WinitPlugin defaults to limit game update rate when window is not visible (for real this time) (#11305) 2024-01-15 17:53:35 +00:00