# Objective
- Improve robustness of state transitions. Currently events that should
be scoped to a specific state can leak between state scopes since events
live for two ticks.
- See https://github.com/bevyengine/bevy/issues/15072
## Solution
- Allow registering state scoped events that will be automatically
cleared when exiting a state. This is *most of the time* not obviously
useful, but enables users to write correct code that will avoid/reduce
edge conditions (such as systems that aren't state scoped polling for a
state scoped event and having unintended side effects outside a specific
state instance).
## Testing
Did not test.
---
## Showcase
Added state scoped events that will be automatically cleared when
exiting a state. Useful when you want to guarantee clean state
transitions.
Normal way to add an event:
```rust
fn setup(app: &mut App) {
app.add_event::<MyGameEvent>();
}
```
Add a state-scoped event (**NEW**):
```rust
fn setup(app: &mut App) {
app.add_state_scoped_event::<MyGameEvent>(GameState::Play);
}
```
# Objective
There aren't any examples of how to draw a ui material with borders.
## Solution
Add border rendering to the `ui_material` example's shader.
## Showcase
<img width="395" alt="bordermat"
src="https://github.com/user-attachments/assets/109c59c1-f54b-4542-96f7-acff63f5057f">
---------
Co-authored-by: charlotte <charlotte.c.mcelwain@gmail.com>
# Objective
Smaller scoped version of #13375 without the `_mut` variants which
currently have unsoundness issues.
## Solution
Same as #13375, but without the `_mut` variants.
## Testing
- The same test from #13375 is reused.
---
## Migration Guide
- Renamed `FilteredEntityRef::components` to
`FilteredEntityRef::accessed_components` and
`FilteredEntityMut::components` to
`FilteredEntityMut::accessed_components`.
---------
Co-authored-by: Carter Anderson <mcanders1@gmail.com>
Co-authored-by: Periwink <charlesbour@gmail.com>
# Objective
Some of the new compile error messages are a little unclear (at least to
me). For example:
```
error[E0277]: `tests::foo::Bar` can not be created through reflection
--> crates/bevy_reflect/src/lib.rs:679:18
|
679 | #[derive(Reflect)]
| ^^^^^^^ the trait `from_reflect::FromReflect` is not implemented for `tests::foo::Bar`
|
= note: consider annotating `tests::foo::Bar` with `#[derive(Reflect)]` or `#[derive(FromReflect)]`
```
While the annotation makes it clear that `FromReflect` is missing, it's
not very clear from the main error message.
My IDE lists errors with only their message immediately present:
<p align="center">
<img width="700" alt="Image of said IDE listing errors with only their
message immediately present. These errors are as follows:
\"`tests::foo::Bar` can not be created through reflection\", \"The trait
bound `tests::foo::Bar: RegisterForReflection` is not satisfied\", and
\"The trait bound `tests::foo::Bar: type_info::MaybeTyped` is not
satisfied\""
src="https://github.com/user-attachments/assets/42c24051-9e8e-4555-8477-51a9407446aa">
</p>
This makes it hard to tell at a glance why my code isn't compiling.
## Solution
Updated all `on_unimplemented` attributes in `bevy_reflect` to mention
the relevant trait—either the actual trait or the one users actually
need to implement—as well as a small snippet of what not implementing
them means.
For example, failing to implement `TypePath` now mentions missing a
`TypePath` implementation. And failing to implement `DynamicTypePath`
now also mentions missing a `TypePath` implementation, since that's the
actual trait users need to implement (i.e. they shouldn't implement
`DynamicTypePath` directly).
Lastly, I also added some missing `on_unimplemented` attributes for
`MaybeTyped` and `RegisterForReflection` (which you can see in the image
above).
Here's how this looks in my IDE now:
<p align="center">
<img width="700" alt="Similar image as before showing the errors listed
by the IDE. This time the errors read as follows: \"`tests::foo::Bar`
does not implement `FromReflect` so cannot be reified through
reflection\", \"`tests::foo::Bar` does not implement
`GetTypeRegistration` so cannot be registered for reflection\", and
\"`tests::foo::Bar` does not implement `Typed` so cannot provide static
type information\""
src="https://github.com/user-attachments/assets/f6f8501f-0450-4f78-b84f-00e7a18d0533">
</p>
## Testing
You can test by adding the following code and verifying the compile
errors are correct:
```rust
#[derive(Reflect)]
struct Foo(Bar);
struct Bar;
```
Bumps [crate-ci/typos](https://github.com/crate-ci/typos) from 1.24.3 to
1.24.5.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/crate-ci/typos/releases">crate-ci/typos's
releases</a>.</em></p>
<blockquote>
<h2>v1.24.5</h2>
<h2>[1.24.5] - 2024-09-04</h2>
<h3>Features</h3>
<ul>
<li><em>(action)</em> Support windows</li>
</ul>
<h2>v1.24.4</h2>
<h2>[1.24.4] - 2024-09-03</h2>
<h3>Fixes</h3>
<ul>
<li>Offer a correction for <code>grather</code></li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/crate-ci/typos/blob/master/CHANGELOG.md">crate-ci/typos's
changelog</a>.</em></p>
<blockquote>
<h2>[1.24.5] - 2024-09-04</h2>
<h3>Features</h3>
<ul>
<li><em>(action)</em> Support windows</li>
</ul>
<h2>[1.24.4] - 2024-09-03</h2>
<h3>Fixes</h3>
<ul>
<li>Offer a correction for <code>grather</code></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="945d407a5f"><code>945d407</code></a>
chore: Release</li>
<li><a
href="e972e95d22"><code>e972e95</code></a>
docs: Update changelog</li>
<li><a
href="fcfade456a"><code>fcfade4</code></a>
Merge pull request <a
href="https://redirect.github.com/crate-ci/typos/issues/1095">#1095</a>
from zyf722/actions-windows</li>
<li><a
href="264f549c13"><code>264f549</code></a>
feat(action): Add Windows support to actions</li>
<li><a
href="853bbe8898"><code>853bbe8</code></a>
chore: Release</li>
<li><a
href="b5f56600b2"><code>b5f5660</code></a>
docs: Update changelog</li>
<li><a
href="39f678e520"><code>39f678e</code></a>
Merge pull request <a
href="https://redirect.github.com/crate-ci/typos/issues/1093">#1093</a>
from kachick/grather-suggest-candidates</li>
<li><a
href="bb6905fdc9"><code>bb6905f</code></a>
Merge pull request <a
href="https://redirect.github.com/crate-ci/typos/issues/1092">#1092</a>
from crate-ci/renovate/embarkstudios-cargo-deny-acti...</li>
<li><a
href="786c825f17"><code>786c825</code></a>
fix(dict): Add suggestions for the typo "grather"</li>
<li><a
href="340058181b"><code>3400581</code></a>
chore(deps): Update EmbarkStudios/cargo-deny-action action to v2</li>
<li>See full diff in <a
href="https://github.com/crate-ci/typos/compare/v1.24.3...v1.24.5">compare
view</a></li>
</ul>
</details>
<br />
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Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.
[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)
---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
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Dependabot creating any more for this major version (unless you reopen
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
# Objective
`ExtractedUiMaterialNode` is still walking the whole `UiStack`.
more info: https://github.com/bevyengine/bevy/pull/9853
## Solution
Retrieve the `stack_index` from the `Node` component instead.
Also changed the `stack_index` field of `ExtractedUiMaterialNode` to
`u32`.
# Objective
Make choosing of diffuse indirect lighting explicit, instead of using
numerical conditions like `all(indirect_light == vec3(0.0f))`, as using
that may lead to unwanted light leakage.
## Solution
Use an explicit `found_diffuse_indirect` condition to indicate the found
indirect lighting source.
## Testing
I have tested examples `lightmaps`, `irradiance_volumes` and
`reflection_probes`, there are no visual changes. For further testing,
consider a "cave" scene with lightmaps and irradiance volumes. In the
cave there are some purly dark occluded area, those dark area will
sample the irradiance volume, and that is easy to leak light.
Hello,
I'd like to contribute to this project by adding some useful constants
and improving the documentation for the AspectRatio struct. Here's a
summary of the changes I've made:
1. Added new constants for common aspect ratios:
- SIXTEEN_NINE (16:9)
- FOUR_THREE (4:3)
- ULTRAWIDE (21:9)
2. Enhanced the overall documentation:
- Improved module-level documentation with an overview and use cases
- Expanded explanation of the AspectRatio struct with examples
- Added detailed descriptions and examples for all methods (both
existing and new)
- Included explanations for the newly introduced constant values
- Added clarifications for From trait implementations
These changes aim to make the AspectRatio API more user-friendly and
easier to understand. The new constants provide convenient access to
commonly used aspect ratios, which I believe will be helpful in many
scenarios.
---------
Co-authored-by: Gonçalo Rica Pais da Silva <bluefinger@gmail.com>
Co-authored-by: Lixou <82600264+DasLixou@users.noreply.github.com>
# Objective
- Fixes#15060
## Solution
- Added `IdentityAssetTransformer<A>` which is an `AssetTransformer`
which infallibly returns the input `Asset` unmodified.
- Replaced `LoadAndSave` and `LoadAndSaveSettings` with type definitions
linking back to `LoadTransformAndSave` and
`LoadTransformAndSaveSettings` respectively.
- Marked `LoadAndSave` and `LoadAndSaveSettings` as depreciated with a
migration guide included, hinting to the user to use the underlying type
instead.
## Testing
- Ran CI locally
---
## Migration Guide
- Replace `LoadAndSave<L, S>` with `LoadTransformAndSave<L,
IdentityAssetTransformer<<L as AssetLoader>::Asset>, S>`
- Replace `LoadAndSaveSettings<L, S>` with
`LoadTransformAndSaveSettings<L, (), S>`
# Objective
- Improve the ergonomics of managing states.
## Solution
- Add `set_state` extension method to `Commands` so you don't need to
type out `ResMut<NextState<S>>` to update a state. It also reduces
system parameter list size when you already have `Commands`.
- I only updated a couple examples to showcase how it can be used. There
*is* a potential perf cost to introducing `Commands` so this method
shouldn't necessarily be used everywhere.
## Testing
- Tested the updated examples: `game_menu` and `alien_cake_addict`.
---
## Showcase
Add `Commands::set_state` method for easily updating states.
Set directly:
```rust
fn go_to_game(mut game_state: ResMut<NextState<GameState>>) {
game_state.set(GameState::Play);
}
```
Set with commands (**NEW**):
```rust
fn go_to_game(mut commands: Commands) {
commands.set_state(GameState::Play);
}
```
Adopted PR from dmlary, all credit to them!
https://github.com/bevyengine/bevy/pull/9915
Original description:
# Objective
The default value for `near` in `OrthographicProjection` should be
different for 2d & 3d.
For 2d using `near = -1000` allows bevy users to build up scenes using
background `z = 0`, and foreground elements `z > 0` similar to css.
However in 3d `near = -1000` results in objects behind the camera being
rendered. Using `near = 0` works for 3d, but forces 2d users to assign
`z <= 0` for rendered elements, putting the background at some arbitrary
negative value.
There is no common value for `near` that doesn't result in a footgun or
usability issue for either 2d or 3d, so they should have separate
values.
There was discussion about other options in the discord
[0](https://discord.com/channels/691052431525675048/1154114310042292325),
but splitting `default()` into `default_2d()` and `default_3d()` seemed
like the lowest cost approach.
Related/past work https://github.com/bevyengine/bevy/issues/9138,
https://github.com/bevyengine/bevy/pull/9214,
https://github.com/bevyengine/bevy/pull/9310,
https://github.com/bevyengine/bevy/pull/9537 (thanks to @Selene-Amanita
for the list)
## Solution
This commit splits `OrthographicProjection::default` into `default_2d`
and `default_3d`.
## Migration Guide
- In initialization of `OrthographicProjection`, change `..default()` to
`..OrthographicProjection::default_2d()` or
`..OrthographicProjection::default_3d()`
Example:
```diff
--- a/examples/3d/orthographic.rs
+++ b/examples/3d/orthographic.rs
@@ -20,7 +20,7 @@ fn setup(
projection: OrthographicProjection {
scale: 3.0,
scaling_mode: ScalingMode::FixedVertical(2.0),
- ..default()
+ ..OrthographicProjection::default_3d()
}
.into(),
transform: Transform::from_xyz(5.0, 5.0, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
```
---------
Co-authored-by: David M. Lary <dmlary@gmail.com>
Co-authored-by: Jan Hohenheim <jan@hohenheim.ch>
Kind of confused why this wasn't breaking for me pre-`0.15-dev` since
nothing obvious seems to have changed in `wgpu` upstream, but this fixes
it and ensures that we return the correct sample type re: the actual
device.
# Objective
Simplify `pick_rounded_rect` with multiple `if` statements to make it
more readable and efficient([Godbolt
link](https://godbolt.org/z/W5vPEvT5c)).
Co-authored-by: WX\shixi <shixi1@cnwxsoft.com>
# Objective
We should attempt to document the entirety of bevy_assets. `AssetMode`
is missing docs explaining what it is, how it's used and why it exists.
## Solution
Add docs, focusing on the context in
https://github.com/bevyengine/bevy/issues/10157.
# Objective
Fixes: https://github.com/bevyengine/bevy/issues/14515
## Solution
Sorts the iterator with itertools' sorted_by function. This is required
given that 'self.entries' is an immutable &[Box<dyn PartialReflect]
which also doesn't implement Clone or Copy.
## Testing
The modifications passed the unit testing only after they were edited to
ensure that the items were in alphabetical order.
I haven't checked for performance implications.
Adds some methods to assist in building `ShaderStorageBuffer` without
using `bytemuck`. We keep the `&[u8]` constructors since this is still
modeled as a thin wrapper around the buffer descriptor, but should make
it easier to interact with at the cost of an extra allocation in the
`ShaderType` path for the buffer writer.
Follow up from #14663
# Objective
`EntityHash` and related types were moved from `bevy_utils` to
`bevy_ecs` in #11498, but seemed to have been accidentally reintroduced
a week later in #11707.
## Solution
Remove the old leftover code.
---
## Migration Guide
- Uses of `bevy::utils::{EntityHash, EntityHasher, EntityHashMap,
EntityHashSet}` now have to be imported from `bevy::ecs::entity`.
# Objective
It's possible to create UB using an implementation of `QueryFilter` that
performs mutable access, but that does not violate any documented safety
invariants.
This code:
```rust
#[derive(Component)]
struct Foo(usize);
// This derive is a simple way to get a valid WorldQuery impl. The QueryData impl isn't used.
#[derive(QueryData)]
#[query_data(mutable)]
struct BadFilter<'w> {
foo: &'w mut Foo,
}
impl QueryFilter for BadFilter<'_> {
const IS_ARCHETYPAL: bool = false;
unsafe fn filter_fetch(
fetch: &mut Self::Fetch<'_>,
entity: Entity,
table_row: TableRow,
) -> bool {
// SAFETY: fetch and filter_fetch have the same safety requirements
let f: &mut usize = &mut unsafe { Self::fetch(fetch, entity, table_row) }.foo.0;
println!("Got &mut at {f:p}");
true
}
}
let mut world = World::new();
world.spawn(Foo(0));
world.run_system_once(|query: Query<&Foo, BadFilter>| {
let f: &usize = &query.iter().next().unwrap().0;
println!("Got & at {f:p}");
query.iter().next().unwrap();
println!("Still have & at {f:p}");
});
```
prints:
```
Got &mut at 0x1924b92dfb0
Got & at 0x1924b92dfb0
Got &mut at 0x1924b92dfb0
Still have & at 0x1924b92dfb0
```
Which means it had an `&` and `&mut` alive at the same time.
The only `unsafe` there is around `Self::fetch`, but I believe that call
correctly upholds the safety invariant, and matches what `Added` and
`Changed` do.
## Solution
Make `QueryFilter` an unsafe trait and document the requirement that the
`WorldQuery` implementation be read-only.
## Migration Guide
`QueryFilter` is now an `unsafe trait`. If you were manually
implementing it, you will need to verify that the `WorldQuery`
implementation is read-only and then add the `unsafe` keyword to the
`impl`.
Since `StandardMaterial::emissive_exposure_weight` does not get packed
into the gbuffer in the deferred case, unpacking uses an implicit
default value for emissive's alpha channel.
This resulted in divergent behavior between the forward and deferred
renderers when using standard materials with default
emissive_exposure_weight, this value defaulting to `0.0` in the forward
case and `1.0` in the other.
This patch changes the implicit value in the deferred case to `0.0` in
order to match the behavior of the forward renderer. However, this still
does not solve the case where `emissive_exposure_weight` is not `0.0`.
# Objective
The `ser` and `de` modules in `bevy_reflect/serde` are very long and
difficult to navigate.
## Solution
Refactor both modules into many smaller modules that each have a single
primary focus (i.e. a `structs` module that only handles struct
serialization/deserialization).
I chose to keep the `ser` and `de` modules separate. We could have
instead broken it up kind (e.g. lists, maps, etc.), but I think this is
a little cleaner. Serialization and deserialization, while related, can
be very different. So keeping them separated makes sense for
organizational purposes.
That being said, if people disagree and think we should structure this a
different way, I am open to changing it.
Note that this PR's changes are mainly structural. There are a few
places I refactored code to reduce duplication and to make things a bit
cleaner, but these are largely cosmetic and shouldn't have any impact on
behavior.
### Other Details
This PR also hides a lot of the internal logic from being exported.
These were originally public, but it's unlikely they really saw any use
outside of these modules. In fact, you don't really gain anything by
using them outside of this module either.
By privatizing these fields and items, we also set ourselves up for more
easily changing internal logic around without involving a breaking
change.
I also chose not to mess around with tests since that would really blow
up the diff haha.
## Testing
You can test locally by running:
```
cargo test --package bevy_reflect --all-features
```
---
## Migration Guide
The fields on `ReflectSerializer` and `TypedReflectSerializer` are now
private. To instantiate, the corresponding constructor must be used:
```rust
// BEFORE
let serializer = ReflectSerializer {
value: &my_value,
registry: &type_registry,
};
// AFTER
let serializer = ReflectSerializer::new(&my_value, &type_registry);
```
Additionally, the following types are no longer public:
- `ArraySerializer`
- `EnumSerializer`
- `ListSerializer`
- `MapSerializer`
- `ReflectValueSerializer` (fully removed)
- `StructSerializer`
- `TupleSerializer`
- `TupleStructSerializer`
As well as the following traits:
- `DeserializeValue` (fully removed)
### Builder changes
- Increased meshlet max vertices/triangles from 64v/64t to 255v/128t
(meshoptimizer won't allow 256v sadly). This gives us a much greater
percentage of meshlets with max triangle count (128). Still not perfect,
we still end up with some tiny <=10 triangle meshlets that never really
get simplified, but it's progress.
- Removed the error target limit. Now we allow meshoptimizer to simplify
as much as possible. No reason to cap this out, as the cluster culling
code will choose a good LOD level anyways. Again leads to higher quality
LOD trees.
- After some discussion and consulting the Nanite slides again, changed
meshlet group error from _adding_ the max child's error to the group
error, to doing `group_error = max(group_error, max_child_error)`. Error
is already cumulative between LODs as the edges we're collapsing during
simplification get longer each time.
- Bumped the 65% simplification threshold to allow up to 95% of the
original geometry (e.g. accept simplification as valid even if we only
simplified 5% of the triangles). This gives us closer to
log2(initial_meshlet_count) LOD levels, and fewer meshlet roots in the
DAG.
Still more work to be done in the future here. Maybe trying METIS for
meshlet building instead of meshoptimizer.
Using ~8 clusters per group instead of ~4 might also make a big
difference. The Nanite slides say that they have 8-32 meshlets per
group, suggesting some kind of heuristic. Unfortunately meshopt's
compute_cluster_bounds won't work with large groups atm
(https://github.com/zeux/meshoptimizer/discussions/750#discussioncomment-10562641)
so hard to test.
Based on discussion from
https://github.com/bevyengine/bevy/discussions/14998,
https://github.com/zeux/meshoptimizer/discussions/750, and discord.
### Runtime changes
- cluster:triangle packed IDs are now stored 25:7 instead of 26:6 bits,
as max triangles per cluster are now 128 instead of 64
- Hardware raster now spawns 128 * 3 vertices instead of 64 * 3 vertices
to account for the new max triangles limit
- Hardware raster now outputs NaN triangles (0 / 0) instead of
zero-positioned triangles for extra vertex invocations over the cluster
triangle count. Shouldn't really be a difference idt, but I did it
anyways.
- Software raster now does 128 threads per workgroup instead of 64
threads. Each thread now loads, projects, and caches a vertex (vertices
0-127), and then if needed does so again (vertices 128-254). Each thread
then rasterizes one of 128 triangles.
- Fixed a bug with `needs_dispatch_remap`. I had the condition backwards
in my last PR, I probably committed it by accident after testing the
non-default code path on my GPU.
# Objective
A previous issue describes the same problem: #14248.
This particular link was seemingly missed by #14276.
## Solution
- Search repo for `bevyengine.org/learn/errors/#`
- Remove `#`
- Verify link goes to right place
# Objective
- Crate-level prelude modules, such as `bevy_ecs::prelude`, are plagued
with inconsistency! Let's fix it!
## Solution
Format all preludes based on the following rules:
1. All preludes should have brief documentation in the format of:
> The _name_ prelude.
>
> This includes the most common types in this crate, re-exported for
your convenience.
2. All documentation should be outer, not inner. (`///` instead of
`//!`.)
3. No prelude modules should be annotated with `#[doc(hidden)]`. (Items
within them may, though I'm not sure why this was done.)
## Testing
- I manually searched for the term `mod prelude` and updated all
occurrences by hand. 🫠
---------
Co-authored-by: Gino Valente <49806985+MrGVSV@users.noreply.github.com>
# Objective
- `CursorIcon` had derived `Reflect`, but it wasn't registered
## Solution
- Use `register_type` on it
- I also moved the cursor code to it's own plugin because there was
starting to be too much cursor code outside the cursor file.
## Testing
- window_settings example still works with the custom cursor
Commit 65252bb87 (Consistently use `PI` to specify angles in examples.
(#5825)) changed from using push_children to add_child without adjusting
the comment
# Objective
- Fix the comments to align with the code
Co-authored-by: Alexander Stein <alexander.stein@mailbox.org>
# Objective
#14957 added the `pick_rounded_rect` function to `bevy_ui` in the
`picking_backend` module, which is gated behind the `bevy_picking`
feature. This function is used in that module, as well as in the `focus`
module. The latter usage is not gated behind the `bevy_picking` feature,
causing a compile error when the feature is disabled.
## Solution
Move the `pick_rounded_rect` function out of the `picking_backend`
module, as it does not depend on anything defined in that module. I put
it in `lib.rs` but it could reasonably be moved somewhere else instead.
## Testing
Encountered this compile error in a project and confirmed that this
patch fixes it.
# Objective
Fixes#13479
This also fixes the gaps you can sometimes observe in outlines
(screenshot from main, not this PR):
<img width="636" alt="outline-gaps"
src="https://github.com/user-attachments/assets/c11dae24-20f5-4aea-8ffc-1894ad2a2b79">
The outline around the last item in each section has vertical gaps.
## Solution
Draw the outlines with corner radius using the existing border rendering
for uinodes. The outline radius is very simple to calculate. We just
take the computed border radius of the node, and if it's greater than
zero, add it to the distance from the edge of the node to the outer edge
of the node's outline.
---
## Showcase
<img width="634" alt="outlines-radius"
src="https://github.com/user-attachments/assets/1ecda26c-65c5-41ef-87e4-5d9171ddc3ae">
---------
Co-authored-by: Jan Hohenheim <jan@hohenheim.ch>
# Objective
Correctly order picking events. Resolves
https://github.com/bevyengine/bevy/issues/5984.
## Solution
Event ordering [very long standing
problem](https://github.com/aevyrie/bevy_mod_picking/issues/294) with
mod picking, stemming from two related issues. The first problem was
that `Pointer<T>` events of different types couldn't be ordered, but we
have already gotten around that in the upstream by switching to
observers. Since observers run in the order they are triggered, this
isn't an issue.
The second problem was that the underlying event streams that picking
uses to create it's pointer interaction events *also* lacked ordering,
and the systems that generated the points couldn't interleave events.
This PR fixes that by unifying the event streams and integrating the
various interaction systems.
The concrete changes are as follows:
+ `bevy_winit::WinitEvent` has been moved to `bevy_window::WindowEvent`.
This provides a unified (and more importantly, *ordered*) input stream
for both `bevy_window` and `bevy_input` events.
+ Replaces `InputMove` and `InputPress` with `PointerInput`, a new
unified input event which drives picking and interaction. This event is
built to have drop-in forward compatibility with [winit's upcoming
pointer abstraction](https://github.com/rust-windowing/winit/pull/3876).
I have added code to emulate it using the current winit input
abstractions, but this entire thing will be much more robust when it
lands.
+ Rolls `pointer_events` `send_click_and_drag_events` and
`send_drag_over_events` into a single system, which operates directly on
`PointerEvent` and triggers observers as output.
The PR also improves docs and takes the opportunity to
refactor/streamline the pointer event dispatch logic.
## Status & Testing
This PR is now feature complete and documented. While it is
theoretically possible to add unit tests for the ordering, building the
picking mocking for that will take a little while.
Feedback on the chosen ordering of events is within-scope.
## Migration Guide
For users switching from `bevy_mod_picking` to `bevy_picking`:
+ Instead of adding an `On<T>` component, use `.observe(|trigger:
Trigger<T>|)`. You may now apply multiple handlers to the same entity
using this command.
+ Pointer interaction events now have semi-deterministic ordering which
(more or less) aligns with the order of the raw input stream. Consult
the docs on `bevy_picking::event::pointer_events` for current
information. You may need to adjust your event handling logic
accordingly.
+ `PointerCancel` has been replaced with `Pointer<Cancled>`, which now
has the semantics of an OS touch pointer cancel event.
+ `InputMove` and `InputPress` have been merged into `PointerInput`. The
use remains exactly the same.
+ Picking interaction events are now only accessible through observers,
and no `EventReader`. This functionality may be re-implemented later.
For users of `bevy_winit`:
+ The event `bevy_winit::WinitEvent` has moved to
`bevy_window::WindowEvent`. If this was the only thing you depended on
`bevy_winit` for, you should switch your dependency to `bevy_window`.
+ `bevy_window` now depends on `bevy_input`. The dependencies of
`bevy_input` are a subset of the existing dependencies for `bevy_window`
so this should be non-breaking.
# Objective
Fixes#15032
## Solution
Reimplement support for the `flip_x` and `flip_y` fields.
This doesn't flip the border geometry, I'm not really sure whether that
is desirable or not.
Also fixes a bug that was causing the side and center slices to tile
incorrectly.
### Testing
```
cargo run --example ui_texture_slice_flip_and_tile
```
## Showcase
<img width="787" alt="nearest"
src="https://github.com/user-attachments/assets/bc044bae-1748-42ba-92b5-0500c87264f6">
With tiling need to use nearest filtering to avoid bleeding between the
slices.
---------
Co-authored-by: Jan Hohenheim <jan@hohenheim.ch>
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# Objective
- follow of #14049 ,we could use it on our Parallel Iterator,this pr
also unified the used function in both regular iter and parallel
iterations.
## Performance
no performance regression for regular itertaion
3.5X faster in hybrid parallel iteraion,this number is far greater than
the benefits obtained in regular iteration(~1.81) because mutable
iterations on continuous memory can effectively reduce the cost of
mataining core cache coherence
# Objective
As discussed in https://github.com/bevyengine/bevy/issues/7386, system
order ambiguities within `DefaultPlugins` are a source of bugs in the
engine and badly pollute diagnostic output for users.
We should eliminate them!
This PR is an alternative to #15027: with all external ambiguities
silenced, this should be much less prone to merge conflicts and the test
output should be much easier for authors to understand.
Note that system order ambiguities are still permitted in the
`RenderApp`: these need a bit of thought in terms of how to test them,
and will be fairly involved to fix. While these aren't *good*, they'll
generally only cause graphical bugs, not logic ones.
## Solution
All remaining system order ambiguities have been resolved.
Review this PR commit-by-commit to see how each of these problems were
fixed.
## Testing
`cargo run --example ambiguity_detection` passes with no panics or
logging!
# Objective
- Fixes https://github.com/bevyengine/bevy/issues/14593.
## Solution
- Add `ViewportConversionError` and return it from viewport conversion
methods on Camera.
## Testing
- I successfully compiled and ran all changed examples.
## Migration Guide
The following methods on `Camera` now return a `Result` instead of an
`Option` so that they can provide more information about failures:
- `world_to_viewport`
- `world_to_viewport_with_depth`
- `viewport_to_world`
- `viewport_to_world_2d`
Call `.ok()` on the `Result` to turn it back into an `Option`, or handle
the `Result` directly.
---------
Co-authored-by: Lixou <82600264+DasLixou@users.noreply.github.com>
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Zachary Harrold <zac@harrold.com.au>
