Commit graph

4132 commits

Author SHA1 Message Date
Marco Buono
2458e8fdbe Add missing example link to examples/README.md 2023-04-10 02:16:48 -03:00
Marco Buono
d158e733e7 Rename transmissive to is_transmissive 2023-04-10 01:56:47 -03:00
Marco Buono
41a74c0af0 Remove redundant clone 2023-04-10 01:55:50 -03:00
Marco Buono
3bc0a018cd Split Transmissive3d into a separate pass 2023-04-10 01:01:40 -03:00
Marco Buono
fb490297e9 Merge branch 'main' into transmission 2023-04-09 18:19:24 -03:00
Ashy
0d971a63e4
Added documentation to the fields within derived read-only types (#8334)
Fixes #8333

# Objective

Fixes issue which causes failure to compile if using
`#![deny(missing_docs)]`.

## Solution

Added some very basic commenting to the generated read-only fields.
honestly I feel this to be up for debate since the comments are very
basic and give very little useful information but the purpose of this PR
is to fix the issue at hand.

---

## Changelog

Added comments to the derive macro and the projects now successfully
compile.

---------

Co-authored-by: lupan <kallll5@hotmail.com>
2023-04-09 14:37:34 +00:00
Mikkel Rasmussen
e9312254d8
Non-breaking change* from UK spellings to US (#8291)
Fixes issue mentioned in PR #8285.

_Note: By mistake, this is currently dependent on #8285_
# Objective

Ensure consistency in the spelling of the documentation.

Exceptions:
`crates/bevy_mikktspace/src/generated.rs` - Has not been changed from
licence to license as it is part of a licensing agreement.

Maybe for further consistency,
https://github.com/bevyengine/bevy-website should also be given a look.

## Solution

### Changed the spelling of the current words (UK/CN/AU -> US) :
cancelled -> canceled (Breaking API changes in #8285)
behaviour -> behavior (Breaking API changes in #8285)
neighbour -> neighbor
grey -> gray
recognise -> recognize
centre -> center
metres -> meters
colour -> color

### ~~Update [`engine_style_guide.md`]~~ Moved to #8324 

---

## Changelog

Changed UK spellings in documentation to US

## Migration Guide

Non-breaking changes*

\* If merged after #8285
2023-04-08 16:22:46 +00:00
JoJoJet
3ead10a3e0
Suppress the clippy::type_complexity lint (#8313)
# Objective

The clippy lint `type_complexity` is known not to play well with bevy.
It frequently triggers when writing complex queries, and taking the
lint's advice of using a type alias almost always just obfuscates the
code with no benefit. Because of this, this lint is currently ignored in
CI, but unfortunately it still shows up when viewing bevy code in an
IDE.

As someone who's made a fair amount of pull requests to this repo, I
will say that this issue has been a consistent thorn in my side. Since
bevy code is filled with spurious, ignorable warnings, it can be very
difficult to spot the *real* warnings that must be fixed -- most of the
time I just ignore all warnings, only to later find out that one of them
was real after I'm done when CI runs.

## Solution

Suppress this lint in all bevy crates. This was previously attempted in
#7050, but the review process ended up making it more complicated than
it needs to be and landed on a subpar solution.

The discussion in https://github.com/rust-lang/rust-clippy/pull/10571
explores some better long-term solutions to this problem. Since there is
no timeline on when these solutions may land, we should resolve this
issue in the meantime by locally suppressing these lints.

### Unresolved issues

Currently, these lints are not suppressed in our examples, since that
would require suppressing the lint in every single source file. They are
still ignored in CI.
2023-04-06 21:27:36 +00:00
Asier Illarramendi
b8b0942f49
Add overflow_debug example (#8198)
# Objective

- Add a new example that helps debug different UI overflow scenarios
- This example tests the clipping behavior for images and text when the
node is moved, scaled or rotated.

## Solution

- Add a new `overflow_debug` example

# Preview

**Note:** Only top-left is working properly right now.


https://user-images.githubusercontent.com/188612/227629093-26c94c67-1781-437d-8410-e854b6f1adc1.mp4

---

Related #8095, #8167

---------

Co-authored-by: Carter Anderson <mcanders1@gmail.com>
Co-authored-by: ickshonpe <david.curthoys@googlemail.com>
2023-04-05 23:07:41 +00:00
ira
585baf0a66
Consistent screen-space coordinates (#8306)
# Objective

Make the coordinate systems of screen-space items (cursor position, UI,
viewports, etc.) consistent.

## Solution

Remove the weird double inversion of the cursor position's Y origin.
Once in bevy_winit to the bottom and then again in bevy_ui back to the
top.
This leaves the origin at the top left like it is in every other popular
app framework.

Update the `world_to_viewport`, `viewport_to_world`, and
`viewport_to_world_2d` methods to flip the Y origin (as they should
since the viewport coordinates were always relative to the top left).

## Migration Guide

`Window::cursor_position` now returns the position of the cursor
relative to the top left instead of the bottom left.
This now matches other screen-space coordinates like
`RelativeCursorPosition`, UI, and viewports.

The `world_to_viewport`, `viewport_to_world`, and `viewport_to_world_2d`
methods on `Camera` now return/take the viewport position relative to
the top left instead of the bottom left.

If you were using `world_to_viewport` to position a UI node the returned
`y` value should now be passed into the `top` field on `Style` instead
of the `bottom` field.
Note that this might shift the position of the UI node as it is now
anchored at the top.

If you were passing `Window::cursor_position` to `viewport_to_world` or
`viewport_to_world_2d` no change is necessary.
2023-04-05 22:32:36 +00:00
ickshonpe
1a7f046c4d
Fix size of clipped text glyphs. (#8197)
# Objective

Text glyphs that were clipped were not sized correctly because the
transform extracted from the `extract_text_uinodes` had a scaling on it
that wasn't accounted for.

fixes #8167

## Solution

Remove the scaling from the transform and multiply the size of the
glyphs by the inverse of the scale factor.
2023-04-05 22:26:52 +00:00
ickshonpe
ff9f2234f3
UiImage helper functions (#8199)
# Objective

Add helper functions to `UiImage` for creating flipped images.

## Changelog

* Added `with_flip_x` and `with_flip_y` methods to `UiImage` that return
the `UiImage` flipped along the respective axis.
2023-04-05 22:19:46 +00:00
Hank Jordan
28046d5142
Expose AudioSink::empty() (#8145)
# Objective

Exposes `empty()` method for `AudioSink`.
Based on `0.10.0`, should be a non-breaking change.

---

## Changelog

- Expose `empty()` method for `AudioSink`
- Add `AudioSink::empty()` example

---------

Co-authored-by: hank <hank@hank.co.in>
Co-authored-by: Carter Anderson <mcanders1@gmail.com>
2023-04-05 21:54:14 +00:00
ickshonpe
6e67d3e534
Remove the corresponding measure from Taffy when a CalculatedSize component is removed. (#8294)
# Objective

When a `CalculatedSize` component from a UI Node entity is removed, the
corresponding Taffy measure isn't removed which will mess up the layout
in confusing, unpredictable ways.

## Solution

Iterate through all the entities with removed `CalculatedSize`
components and remove the corresponding Taffy measures.
2023-04-05 21:29:29 +00:00
Mikkel Rasmussen
1575481429
Changed spelling linebreak_behaviour to linebreak_behavior (#8285)
# Objective

In the
[`Text`](3442a13d2c/crates/bevy_text/src/text.rs (L18))
struct the field is named: `linebreak_behaviour`, the British spelling
of _behavior_.
**Update**, also found: 
- `FileDragAndDrop::HoveredFileCancelled` 
- `TouchPhase::Cancelled`
- `Touches.just_cancelled`

The majority of all spelling is in the US but when you have a lot of
contributors across the world, sometimes
spelling differences can pop up in APIs such as in this case. 

For consistency, I think it would be worth a while to ensure that the
API is persistent.

Some examples:
`from_reflect.rs` has `DefaultBehavior`
TextStyle has `color` and uses the `Color` struct.
In `bevy_input/src/Touch.rs` `TouchPhase::Cancelled` and _canceled_ are
used interchangeably in the documentation

I've found that there is also the same type of discrepancies in the
documentation, though this is a low priority but is worth checking.
**Update**: I've now checked the documentation (See #8291)

## Solution

I've only renamed the inconsistencies that have breaking changes and
documentation pertaining to them. The rest of the documentation will be
changed via #8291.

Do note that the winit API is written with UK spelling, thus this may be
a cause for confusion:
`winit::event::TouchPhase::Cancelled => TouchPhase::Canceled`
`winit::event::WindowEvent::HoveredFileCancelled` -> Related to
`FileDragAndDrop::HoveredFileCanceled`

But I'm hoping to maybe outline other spelling inconsistencies in the
API, and maybe an addition to the contribution guide.

---

## Changelog

- `Text` field `linebreak_behaviour` has been renamed to
`linebreak_behavior`.
- Event `FileDragAndDrop::HoveredFileCancelled` has been renamed to
`HoveredFileCanceled`
- Function `Touches.just_cancelled` has been renamed to
`Touches.just_canceled`
- Event `TouchPhase::Cancelled` has been renamed to
`TouchPhase::Canceled`

## Migration Guide

Update where `linebreak_behaviour` is used to `linebreak_behavior`
Updated the event `FileDragAndDrop::HoveredFileCancelled` where used to
`HoveredFileCanceled`
Update `Touches.just_cancelled` where used as `Touches.just_canceled`
The event `TouchPhase::Cancelled` is now called `TouchPhase::Canceled`
2023-04-05 21:25:53 +00:00
IceSentry
c70776b3cf
Use RenderGraphApp in more places (#8298)
# Objective

- RenderGraphExt was merged, but only used in limited situations

## Solution

- Fix some remaining issues with the existing api
- Use the new api in the main pass and mass writeback
- Add CORE_2D and CORE_3D constant to make render_graph code shorter
2023-04-05 20:57:56 +00:00
Erik Šabič
0a17751d16
Minor mistake in Frustum::intersects_obb (#8305)
# Objective

Fix a minor mistake

## Solution

Replaced an extraction of a plane normal with an existing method
2023-04-05 19:37:59 +00:00
James Liu
21e1893c4f
Remove capacity fields from all Buffer wrapper types (#8301)
# Objective
While working on #8299, I noticed that we're using a `capacity` field,
even though `wgpu::Buffer` exposes a `size` accessor that does the same
thing.

## Solution
Remove it from all buffer wrappers. Use `wgpu::Buffer::size` instead.
Default to 0 if no buffer has been allocated yet.
2023-04-04 20:12:31 +00:00
James Liu
63d89d31ba
Remove unnecesssary values Vec from DynamicUniformBuffer and DynamicStorageBuffer (#8299)
# Objective
Fixes #8284. `values` is being pushed to separately from the actual
scratch buffer in `DynamicUniformBuffer::push` and
`DynamicStorageBuffer::push`. In both types, `values` is really only
used to track the number of elements being added to the buffer, yet is
causing extra allocations, size increments and excess copies.

## Solution
Remove it and its remaining uses. Replace it with accesses to `scratch`
instead.

I removed the `len` accessor, as it may be non-trivial to compute just
from `scratch`. If this is still desirable to have, we can keep a `len`
member field to track it instead of relying on `scratch`.
2023-04-04 20:12:19 +00:00
Aceeri
ed50c8b4d9
Make state private and only accessible through getter for State resource (#8009)
# Objective
State requires a kind of awkward `state.0` to get the current state and
exposes the field directly to manipulation.

## Solution
Make it accessible through a getter method as well as privatize the
field to make sure false assumptions about setting the state aren't
made.

## Migration Guide
- Use `State::get` instead of accessing the tuple field directly.
2023-04-04 01:25:54 +00:00
James Liu
5fe7a403dc
Add a performance regression issue template (#8279)
# Objective
Closes #7821. A good chunk of performance related issues filed are tough
to take action on without much deeper investigation by the author, who
may or may not be responsive after filing the issue.

## Solution
Add a performance regression issue template and use it to direct users
to take a more proactive role in investigating the source of the
regression.

---------

Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: François <mockersf@gmail.com>
Co-authored-by: Carter Anderson <mcanders1@gmail.com>
2023-04-04 01:04:18 +00:00
IceSentry
614de3019c
Add RenderGraphApp to simplify adding render nodes (#8007)
# Objective

- Adding a node to the render_graph can be quite verbose and error prone
because there's a lot of moving parts to it.

## Solution

- Encapsulate this in a simple utility method
	- Mostly intended for optional nodes that have specific ordering
- Requires that the `Node` impl `FromWorld`, but every internal node is
built using a new function taking a `&mut World` so it was essentially
already `FromWorld`
- Use it for the bloom, fxaa and taa, nodes. 
- The main nodes don't use it because they rely more on the order of
many nodes being added

---

## Changelog

- Impl `FromWorld` for `BloomNode`, `FxaaNode` and `TaaNode`
- Added `RenderGraph::add_node_edges()`
- Added `RenderGraph::sub_graph()`
- Added `RenderGraph::sub_graph_mut()`
- Added `RenderGraphApp`, `RenderGraphApp::add_render_graph_node`,
`RenderGraphApp::add_render_graph_edges`,
`RenderGraphApp::add_render_graph_edge`

## Notes

~~This was taken out of https://github.com/bevyengine/bevy/pull/7995
because it works on it's own. Once the linked PR is done, the new
`add_node()` will be simplified a bit since the input/output params
won't be necessary.~~

This feature will be useful in most of the upcoming render nodes so it's
impact will be more relevant at that point.

Partially fixes #7985 

## Future work

* Add a way to automatically label nodes or at least make it part of the
trait. This would remove one more field from the functions added in this
PR
* Use it in the main pass 2d/3d

---------

Co-authored-by: Carter Anderson <mcanders1@gmail.com>
2023-04-04 00:50:22 +00:00
张林伟
5c7abb0579
Remove OnUpdate system set (#8260)
# Objective

- Fixes https://github.com/bevyengine/bevy/issues/8239.

## Solution

- Replace `OnUpdate` with `run_if(in_state(xxx))`.

---

## Migration Guide

- Replace `OnUpdate` with `run_if(in_state(xxx))`.

---------

Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
2023-04-04 00:49:41 +00:00
JoJoJet
b423e6ee15
Extend the WorldQuery macro to tuple structs (#8119)
# Objective

The `#[derive(WorldQuery)]` macro currently only supports structs with
named fields.

Same motivation as #6957. Remove sharp edges from the derive macro, make
it just work more often.

## Solution

Support tuple structs.

---

## Changelog

+ Added support for tuple structs to the `#[derive(WorldQuery)]` macro.
2023-04-04 00:49:03 +00:00
Zhixing Zhang
2aaaed7f69
Make bevy_render an optional dependency of bevy_scene (#8136)
# Objective

bevy-scene does not have a reason to depend on bevy-render except to
include the `Visibility` and `ComputedVisibility` components. Including
that in the dependency chain is unnecessary for people not using
`bevy_render`.

Also fixed a problem where compilation fails when the `serialize`
feature was not enabled.

## Solution

This was added in #5335 to address some of the problems caused by #5310.

Imo the user just always have to remember to include `VisibilityBundle`
when they spawn `SceneBundle` or `DynamicSceneBundle`, but that will be
a breaking change. This PR makes `bevy_render` an optional dependency of
`bevy_scene` instead to respect the existing behavior.
2023-04-03 21:23:26 +00:00
JoJoJet
086db6d22f
Update increment_change_tick to return a strongly-typed Tick (#8295)
# Objective

While migrating the engine to use the `Tick` type in #7905, I forgot to
update `UnsafeWorldCell::increment_change_tick`.

## Solution

Update the function.

---

## Changelog

- The function `UnsafeWorldCell::increment_change_tick` is now
strongly-typed, returning a value of type `Tick` instead of a raw `u32`.

## Migration Guide

The function `UnsafeWorldCell::increment_change_tick` is now
strongly-typed, returning a value of type `Tick` instead of a raw `u32`.
2023-04-03 17:42:27 +00:00
Elabajaba
09f1bd0be7
Add port of AMD's Robust Contrast Adaptive Sharpening (#7422)
# Objective

TAA, FXAA, and some other post processing effects can cause the image to
become blurry. Sharpening helps to counteract that.

## Solution

~~This is a port of AMD's Contrast Adaptive Sharpening (I ported it from
the
[SweetFX](https://github.com/CeeJayDK/SweetFX/blob/master/Shaders/CAS.fx)
version, which is still MIT licensed). CAS is a good sharpening
algorithm that is better at avoiding the full screen oversharpening
artifacts that simpler algorithms tend to create.~~

This is a port of AMD's Robust Contrast Adaptive Sharpening (RCAS) which
they developed for FSR 1 ([and continue to use in FSR
2](149cf26e12/src/ffx-fsr2-api/shaders/ffx_fsr1.h (L599))).
RCAS is a good sharpening algorithm that is better at avoiding the full
screen oversharpening artifacts that simpler algorithms tend to create.

---

## Future Work

- Consider porting this to a compute shader for potentially better
performance. (In my testing it is currently ridiculously cheap (0.01ms
in Bistro at 1440p where I'm GPU bound), so this wasn't a priority,
especially since it would increase complexity due to still needing the
non-compute version for webgl2 support).

---

## Changelog

- Added Contrast Adaptive Sharpening.

---------

Co-authored-by: JMS55 <47158642+JMS55@users.noreply.github.com>
2023-04-02 20:14:01 +00:00
JMS55
f0f5d79917
Built-in skybox (#8275)
# Objective

- Closes https://github.com/bevyengine/bevy/issues/8008

## Solution

- Add a skybox plugin that renders a fullscreen triangle, and then
modifies the vertices in a vertex shader to enforce that it renders as a
skybox background.
- Skybox is run at the end of MainOpaquePass3dNode.
- In the future, it would be nice to get something like bevy_atmosphere
built-in, and have a default skybox+environment map light.

---

## Changelog

- Added `Skybox`.
- `EnvironmentMapLight` now renders in the correct orientation.

## Migration Guide
- Flip `EnvironmentMapLight` maps if needed to match how they previously
rendered (which was backwards).

---------

Co-authored-by: Robert Swain <robert.swain@gmail.com>
Co-authored-by: robtfm <50659922+robtfm@users.noreply.github.com>
2023-04-02 10:57:12 +00:00
Natalia
7a9e77c79c
make the examples use the States derive macro (#8289)
# Objective
Some examples still manually implement the States trait, even though
manual implementation is no longer needed as there is now the derive
macro for that.

---------

Signed-off-by: Natalia Asteria <fortressnordlys@outlook.com>
2023-04-02 04:25:47 +00:00
Gajo Petrovic
9079f6d976
Fix UI node docs (#8287)
# Objective

- Fix some (probably) incorrect docs.
2023-04-02 00:02:01 +00:00
Sludge
d193d7f537
Reflect Component and Default of BloomSettings (#8283)
These traits are both implemented, but not reflected, requiring user
code to do `app.register_type_data::<BloomSettings,
ReflectDefault>().register_type_data::<BloomSettings,
ReflectComponent>()` to make these usable via reflection.
2023-04-01 18:59:41 +00:00
JoJoJet
3442a13d2c
Use UnsafeWorldCell to increase code quality for SystemParam (#8174)
# Objective

The type `&World` is currently in an awkward place, since it has two
meanings:
1. Read-only access to the entire world.
2. Interior mutable access to the world; immutable and/or mutable access
to certain portions of world data.

This makes `&World` difficult to reason about, and surprising to see in
function signatures if one does not know about the interior mutable
property.

The type `UnsafeWorldCell` was added in #6404, which is meant to
alleviate this confusion by adding a dedicated type for interior mutable
world access. However, much of the engine still treats `&World` as an
interior mutable-ish type. One of those places is `SystemParam`.

## Solution

Modify `SystemParam::get_param` to accept `UnsafeWorldCell` instead of
`&World`. Simplify the safety invariants, since the `UnsafeWorldCell`
type encapsulates the concept of constrained world access.

---

## Changelog

`SystemParam::get_param` now accepts an `UnsafeWorldCell` instead of
`&World`. This type provides a high-level API for unsafe interior
mutable world access.

## Migration Guide

For manual implementers of `SystemParam`: the function `get_item` now
takes `UnsafeWorldCell` instead of `&World`. To access world data, use:

* `.get_entity()`, which returns an `UnsafeEntityCell` which can be used
to access component data.
* `get_resource()` and its variants, to access resource data.
2023-04-01 15:45:07 +00:00
fren_gor
253db50c63
Fix typo in bevy_reflect README (#8281)
# Objective

Fix typo in bevy_reflect README: `MyType` is a struct and not a trait,
so `&dyn MyType` is incorrect.

## Solution

Replace `&dyn MyType` with `&dyn DoThing`
2023-04-01 03:01:44 +00:00
JoJoJet
ae39b07d26
Replace some unsafe system executor code with safe code (#8274)
# Objective

The function `SyncUnsafeCell::from_mut` returns `&SyncUnsafeCell<T>`,
even though it could return `&mut SyncUnsafeCell<T>`. This means it is
not possible to call `get_mut` on the returned value, so you need to use
unsafe code to get exclusive access back.

## Solution

Return `&mut Self` instead of `&Self` in `SyncUnsafeCell::from_mut`.
This is consistent with my proposal for `UnsafeCell::from_mut`:
https://github.com/rust-lang/libs-team/issues/198.

Replace an unsafe pointer dereference with a safe call to `get_mut`.

---

## Changelog

+ The function `bevy_utils::SyncUnsafeCell::get_mut` now returns a value
of type `&mut SyncUnsafeCell<T>`. Previously, this returned an immutable
reference.

## Migration Guide

The function `bevy_utils::SyncUnsafeCell::get_mut` now returns a value
of type `&mut SyncUnsafeCell<T>`. Previously, this returned an immutable
reference.
2023-03-31 21:56:49 +00:00
JoJoJet
711efed018
Fix inaccurate documentation on `QueryState::for_each_unchecked (#8277)
# Objective

The documentation on `QueryState::for_each_unchecked` incorrectly says
that it can only be used with read-only queries.

## Solution

Remove the inaccurate sentence.
2023-03-31 16:54:36 +00:00
Jannik Obermann
f201a9df39
Fix CubicCurve::iter_samples iteration count (#8049)
# Objective

Fix `CubicCurve::iter_samples` iteration count.

## Solution

If I understand the function and the docs correctly, this should iterate
over `0..=subdivisions` instead of `0..subdivisions`.
For example: Now the iteration returns 3 points at `subdivisions = 2`,
as indicated in the documentation.
2023-03-31 08:15:21 +00:00
James Liu
8e82c88131
Basic event benchmarks (#8251)
# Objective
Fix #7731. Add basic Event sending and iteration benchmarks to
bevy_ecs's benchmark suite.

## Solution
Add said benchmarks scaling from 100 to 50,000 events.

Not sure if I want to include a randomization of the events going in,
the current implementation might be too easy for the compiler to
optimize.

---------

Co-authored-by: JoJoJet <21144246+JoJoJet@users.noreply.github.com>
2023-03-31 07:12:18 +00:00
JoJoJet
a954f3e150
Remove #[system_param(ignore)] and #[world_query(ignore)] (#8265)
# Objective

Follow-up to #8030.

Now that `SystemParam` and `WorldQuery` are implemented for
`PhantomData`, the `ignore` attributes are now unnecessary.

---

## Changelog

- Removed the attributes `#[system_param(ignore)]` and
`#[world_query(ignore)]`.

## Migration Guide

The attributes `#[system_param(ignore)]` and `#[world_query]` ignore
have been removed. If you were using either of these with `PhantomData`
fields, you can simply remove the attribute:

```rust
#[derive(SystemParam)]
struct MyParam<'w, 's, Marker> {
    ...
    // Before:
    #[system_param(ignore)
    _marker: PhantomData<Marker>,

    // After:
    _marker: PhantomData<Marker>,
}
#[derive(WorldQuery)]
struct MyQuery<Marker> {
    ...
    // Before:
    #[world_query(ignore)
    _marker: PhantomData<Marker>,

    // After:
    _marker: PhantomData<Marker>,
}
```

If you were using this for another type that implements `Default`,
consider wrapping that type in `Local<>` (this only works for
`SystemParam`):

```rust
#[derive(SystemParam)]
struct MyParam<'w, 's> {
    // Before:
    #[system_param(ignore)]
    value: MyDefaultType, // This will be initialized using `Default` each time `MyParam` is created.

    // After:
    value: Local<MyDefaultType>, // This will be initialized using `Default` the first time `MyParam` is created.
}
```

If you are implementing either trait and need to preserve the exact
behavior of the old `ignore` attributes, consider manually implementing
`SystemParam` or `WorldQuery` for a wrapper struct that uses the
`Default` trait:

```rust
// Before:

#[derive(WorldQuery)
struct MyQuery {
   #[world_query(ignore)]
    str: String,
}

// After:

#[derive(WorldQuery)
struct MyQuery {
    str: DefaultQuery<String>,
}

pub struct DefaultQuery<T: Default>(pub T);

unsafe impl<T: Default> WorldQuery for DefaultQuery<T> {
    type Item<'w> = Self;
    ...
    unsafe fn fetch<'w>(...) -> Self::Item<'w> {
        Self(T::default())
    }
}
```
2023-03-30 23:02:25 +00:00
JoJoJet
98954311b3
Use actual tests for SystemParam regression tests (#8270)
# Objective

Our regression tests for `SystemParam` currently consist of a bunch of
loosely dispersed struct definitions. This is messy, and doesn't fully
test their functionality.

## Solution

Group the struct definitions into functions annotated with `#[test]`.
This not only makes the module more organized, but it allows us to call
`assert_is_system`, which has the potential to catch some bugs that
would have been missed with the old approach. Also, this approach is
consistent with how `WorldQuery` regression tests are organized.
2023-03-30 21:47:36 +00:00
Edgar Geier
300b275edc
run_if for SystemConfigs via anonymous system sets (#7676)
# Objective

- Fixes #7659

## Solution

The idea of anonymous system sets or "implicit hidden organizational
sets" was briefly mentioned by @cart here:
https://github.com/bevyengine/bevy/pull/7634#issuecomment-1428619449.

- `Schedule::add_systems` creates an implicit, anonymous system set of
all systems in `SystemConfigs`.
- All dependencies and conditions from the `SystemConfigs` are now
applied to the implicit system set, instead of being applied to each
individual system. This should not change the behavior, AFAIU, because
`before`, `after`, `run_if` and `ambiguous_with` are transitive
properties from a set to its members.
- The newly added `AnonymousSystemSet` stores the names of its members
to provide better error messages.
- The names are stored in a reference counted slice, allowing fast
clones of the `AnonymousSystemSet`.
- However, only the pointer of the slice is used for hash and equality
operations
- This ensures that two `AnonymousSystemSet` are not equal, even if they
have the same members / member names.
- So two identical `add_systems` calls will produce two different
`AnonymousSystemSet`s.
  - Clones of the same `AnonymousSystemSet` will be equal.

## Drawbacks
If my assumptions are correct, the observed behavior should stay the
same. But the number of system sets in the `Schedule` will increase with
each `add_systems` call. If this has negative performance implications,
`add_systems` could be changed to only create the implicit system set if
necessary / when a run condition was added.

---------

Co-authored-by: Carter Anderson <mcanders1@gmail.com>
2023-03-30 21:39:10 +00:00
Edgar Geier
a1d771a772
Remove base set error variants of ScheduleBuildError (#8269)
# Objective

With the removal of base sets, some variants of `ScheduleBuildError` can
never occur and should be removed.

## Solution

- Remove the obsolete variants of `ScheduleBuildError`.
- Also fix a doc comment which mentioned base sets.

---

## Changelog

### Removed

- Remove `ScheduleBuildError::SystemInMultipleBaseSets` and
`ScheduleBuildError::SetInMultipleBaseSets`.
2023-03-30 20:32:50 +00:00
JoJoJet
3533c3dae9
Improve documentation for set_if_neq (#8254)
# Objective

Reword the documentation for `set_if_neq` and add a doctest.
2023-03-30 15:43:13 +00:00
JoJoJet
d9113cca6f
Make #[system_param(ignore)] and #[world_query(ignore)] unnecessary (#8030)
# Objective

When using `PhantomData` fields with the `#[derive(SystemParam)]` or
`#[derive(WorldQuery)]` macros, the user is required to add the
`#[system_param(ignore)]` attribute so that the macro knows to treat
that field specially. This is undesirable, since it makes the macro more
fragile and less consistent.

## Solution

Implement `SystemParam` and `WorldQuery` for `PhantomData`. This makes
the `ignore` attributes unnecessary.

Some internal changes make the derive macro compatible with types that
have invariant lifetimes, which fixes #8192. From what I can tell, this
fix requires `PhantomData` to implement `SystemParam` in order to ensure
that all of a type's generic parameters are always constrained.

---

## Changelog

+ Implemented `SystemParam` and `WorldQuery` for `PhantomData<T>`.
+ Fixed a miscompilation caused when invariant lifetimes were used with
the `SystemParam` macro.
2023-03-30 15:12:26 +00:00
JoJoJet
f219a08907
Simplify Clone for ThinSlicePtr (#8247)
# Objective

The type `ThinSlicePtr` has a manual implementation of `Clone` that
manually clones each field. Since this type implements `Copy`, we can
change this implementation to simply dereference `&self`.
2023-03-30 10:22:09 +00:00
JoJoJet
dbb9e428cd
Miscellaneous cleanups to World::resource_scope (#8256)
# Objective

* Make a safety comment less tautological.
* Clearly document that the function can run user code.
* Other small changes.
2023-03-30 10:17:08 +00:00
Rob Parrett
a141aed67d
Format SystemState doc example code (#8261)
# Objective

I noticed some funky whitespace in the examples in the
[`SystemState`](https://docs.rs/bevy/latest/bevy/ecs/system/struct.SystemState.html#example)
doc examples.

## Solution

Semi-manually reformatted these particular code blocks and hid some of
the imports and boilerplate not relevant to the example.


([format_code_in_doc_comments](https://rust-lang.github.io/rustfmt/?version=v1.5.1&search=#format_code_in_doc_comments)
seemingly has a bunch of issues and has not been stabilized)
2023-03-30 10:06:05 +00:00
Robert Walter
5f0abbfd15
Make standard commands more ergonomic (in niche cases) (#8249)
# Objective

I ran into a case where I need to create a `CommandQueue` and push
standard `Command` actions like `Insert` or `Remove` to it manually. I
saw that `Remove` looked as follows:

```rust
struct Remove<T> {
  entity: Entity,
  phantom: PhantomData<T>
}
```

so naturally, I tried to use `Remove::<Foo>::from(entity)` but it didn't
exist. We need to specify the `PhantomData` explicitly when creating
this command action. The same goes for `RemoveResource` and
`InitResource`

## Solution

This PR implements the following:

- `From<Entity>` for `Remove<T>`
- `Default` for `RemoveResource` and `InitResource`
- use these traits in the implementation of methods of `Commands`
- rename `phantom` field on the structs above to `_phantom` to have a
more uniform field naming scheme for the command actions

---

## Changelog

> This section is optional. If this was a trivial fix, or has no
externally-visible impact, you can delete this section.

- Added: implemented `From<Entity>` for `Remove<T>` and `Default` for
`RemoveResource` and `InitResource` for ergonomics

---------

Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
2023-03-29 18:27:48 +00:00
François
36ada9dd4e
Fix segfault with 2d gizmos (#8223)
# Objective

- Don't segfault with gizmos in 2d
- Fixes #8144, Fixes #8211 

## Solution

- Don't use depth in 2d
2023-03-29 18:05:03 +00:00
IceSentry
0859f675c3
Use the prepass normal texture in main pass when possible (#8231)
# Objective

- We support enabling a normal prepass, but the main pass never actually
uses it and recomputes the normals in the main pass. This isn't ideal
since it's doing redundant work.

## Solution

- Use the normal texture from the prepass in the main pass

## Notes

~~I used `NORMAL_PREPASS_ENABLED` as a shader_def because
`NORMAL_PREPASS` is currently used to signify that it is running in the
prepass while this shader_def need to indicate the prepass is done and
the normal prepass was ran before. I'm not sure if there's a better way
to name this.~~
2023-03-29 18:04:40 +00:00
François
21dc3abe1b
daily job running mobile example on real devices (#8216)
# Objective

- Test mobile example on real devices

## Solution

- Use [BrowserStack](https://www.browserstack.com) to have access to
[real
devices](https://www.browserstack.com/list-of-browsers-and-platforms/app_automate)
- [App Automate](https://www.browserstack.com/app-automate) to run the
example
- [App Percy](https://www.browserstack.com/app-percy) to compare the
screenshot
- Added a daily/manual CI job that will build for iOS and Android, send
the apps to BrowserStack, run the app on one iOS device and one Android
device, capture a screenshot, send it for visual validation, and archive
it in the GitHub action

Example run: https://github.com/mockersf/bevy/actions/runs/4521883534

They currently have a bug with the settings to view snapshots, they
should be public. I'll raise it to them, and if they don't fix it in
time it's possible to work around for everyone to view the results
through their API.

@cart to get this to work, you'll need
- to set up an account on BrowserStack
- add the secrets `BROWSERSTACK_USERNAME` and `BROWSERSTACK_ACCESS_KEY`
to the Bevy repo
- create a project in Percy
- add the secret `PERCY_TOKEN` to the Bevy repo and modify the project
name line 122 in the `Daily.yml` file
2023-03-28 23:16:07 +00:00