Commit graph

98 commits

Author SHA1 Message Date
Lixou
20264d0810
Make AnimationPlayer::start and ::play work accordingly to documentation (#14546)
# Objective

While scrolling through the animation crate, I was confused by the docs
and code for the two methods. One does nothing for resetting an
animation, the other just resets the weights for whatever reason.

## Solution

Made the functions work accordingly to their documentation.
`start` now replays the animation.
And `play` doesn't reset the weight anymore. I have no clue why it
should. `play` is there to don't do anything to an already existing
animation.

## Testing

I tested the current 0.14 code with bevy playground in the Animated Fox
exampled and changed it such that on pressing space, either `play` or
`start` would be called. Neither changed anything.
I then inlined the function for start there and it restarted the
animation, so it should work.

---

## Migration Guide

`AnimationPlayer::start` now correspondingly to its docs restarts a
running animation.
`AnimationPlayer::play` doesn't reset the weight anymore.
2024-07-31 14:07:53 +00:00
Giacomo Stevanato
71c5f1e3e4
Generate links to definition in source code pages on docs.rs and dev-docs.bevyengine.org (#12965)
# Objective

- Fix issue #2611

## Solution

- Add `--generate-link-to-definition` to all the `rustdoc-args` arrays
in the `Cargo.toml`s (for docs.rs)
- Add `--generate-link-to-definition` to the `RUSTDOCFLAGS` environment
variable in the docs workflow (for dev-docs.bevyengine.org)
- Document all the workspace crates in the docs workflow (needed because
otherwise only the source code of the `bevy` package will be included,
making the argument useless)
- I think this also fixes #3662, since it fixes the bug on
dev-docs.bevyengine.org, while on docs.rs it has been fixed for a while
on their side.

---

## Changelog

- The source code viewer on docs.rs now includes links to the
definitions.
2024-07-29 23:10:16 +00:00
Hannes Karppila
93def2611b
Fix repeated animation transition bug (#14411)
# Objective

Fixes #13910

When a transition is over, the animation is stopped. There was a race
condition; if an animation was started while it also had an active
transition, the transition ending would then incorrectly stop the newly
added animation.

## Solution

When starting an animation, cancel any previous transition for the same
animation.

## Testing

The changes were tested manually, mainly by using the `animated_fox`
example. I also tested with changes from
https://github.com/bevyengine/bevy/pull/13909.

I'd like to have an unit test for this as well, but it seems quite
complex to do, as I'm not sure how I would detect an incorrectly paused
animation.

Reviewers can follow the instructions in #13910 to reproduce.

Tested on macos 14.4 (M3 processor) Should be platform-independent,
though.
2024-07-22 19:17:46 +00:00
Coder-Joe458
8f5345573c
Remove manual --cfg docsrs (#14376)
# Objective

- Fixes #14132 

## Solution

- Remove the cfg docsrs
2024-07-22 18:58:04 +00:00
Al M.
e06f4d4083
Fix single keyframe animations. (#14344)
# Objective

For clips with more than one curve, only the first was being applied if
there is only one keyframe in it.

## Solution

Continue!
2024-07-22 18:44:27 +00:00
Peter Hayman
b8416b3043
Add some missing reflect attributes (#14259)
# Objective

- Some types are missing reflection attributes, which means we can't use
them in scene serialization etc.
- Effected types
   - `BorderRadius`
   - `AnimationTransitions`
   - `OnAdd`
   - `OnInsert`
   - `OnRemove`
- My use-case for `OnAdd` etc to derive reflect is 'Serializable
Observer Components'. Add the component, save the scene, then the
observer is re-added on scene load.

```rust
#[derive(Reflect)]
struct MySerializeableObserver<T: Event>(#[reflect(ignore)]PhantomData<T>);

impl<T: Event> Component for MySerializeableObserver<T> {
  const STORAGE_TYPE: StorageType  = StorageType::Table;
    fn register_component_hooks(hooks: &mut ComponentHooks) {
      hooks.on_add(|mut world, entity, _| {
        world
          .commands()
          .entity(entity)
          .observe(|_trigger: Trigger<T>| {
            println!("it triggered etc.");
          });
    });
  }
}
```

## Solution

- Add the missing traits

---
2024-07-22 18:24:10 +00:00
Abe
d8d49fdd13
Deprecate is_playing_animation (#14387)
# Objective

Fixes #14386

## Solution

- Added the `#[deprecate]` attribute to the `is_playing_animation`
function.

## Testing

The project successfully builds.

---

## Migration Guide

The user will just need to replace functions named
`is_playing_animation` with `animation_is_playing`.
2024-07-19 11:27:43 +00:00
github-actions[bot]
8df10d2713
Bump Version after Release (#14219)
Bump version after release
This PR has been auto-generated

Co-authored-by: Bevy Auto Releaser <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: François Mockers <mockersf@gmail.com>
2024-07-08 12:54:08 +00:00
Mincong Lu
ce5254e3ec
Added get_main_animation for AnimationTransitions (#14104)
# Objective

Added a getter for the main animation of `AnimationTransitions`.

## Solution

Added `get_main_animation` for `AnimationTransitions`.
2024-07-02 13:28:42 +00:00
Joseph
5876352206
Optimize common usages of AssetReader (#14082)
# Objective

The `AssetReader` trait allows customizing the behavior of fetching
bytes for an `AssetPath`, and expects implementors to return `dyn
AsyncRead + AsyncSeek`. This gives implementors of `AssetLoader` great
flexibility to tightly integrate their asset loading behavior with the
asynchronous task system.

However, almost all implementors of `AssetLoader` don't use the async
functionality at all, and just call `AsyncReadExt::read_to_end(&mut
Vec<u8>)`. This is incredibly inefficient, as this method repeatedly
calls `poll_read` on the trait object, filling the vector 32 bytes at a
time. At my work we have assets that are hundreds of megabytes which
makes this a meaningful overhead.

## Solution

Turn the `Reader` type alias into an actual trait, with a provided
method `read_to_end`. This provided method should be more efficient than
the existing extension method, as the compiler will know the underlying
type of `Reader` when generating this function, which removes the
repeated dynamic dispatches and allows the compiler to make further
optimizations after inlining. Individual implementors are able to
override the provided implementation -- for simple asset readers that
just copy bytes from one buffer to another, this allows removing a large
amount of overhead from the provided implementation.

Now that `Reader` is an actual trait, I also improved the ergonomics for
implementing `AssetReader`. Currently, implementors are expected to box
their reader and return it as a trait object, which adds unnecessary
boilerplate to implementations. This PR changes that trait method to
return a pseudo trait alias, which allows implementors to return `impl
Reader` instead of `Box<dyn Reader>`. Now, the boilerplate for boxing
occurs in `ErasedAssetReader`.

## Testing

I made identical changes to my company's fork of bevy. Our app, which
makes heavy use of `read_to_end` for asset loading, still worked
properly after this. I am not aware if we have a more systematic way of
testing asset loading for correctness.

---

## Migration Guide

The trait method `bevy_asset::io::AssetReader::read` (and `read_meta`)
now return an opaque type instead of a boxed trait object. Implementors
of these methods should change the type signatures appropriately

```rust
impl AssetReader for MyReader {
    // Before
    async fn read<'a>(&'a self, path: &'a Path) -> Result<Box<Reader<'a>>, AssetReaderError> {
        let reader = // construct a reader
        Box::new(reader) as Box<Reader<'a>>
    }

    // After
    async fn read<'a>(&'a self, path: &'a Path) -> Result<impl Reader + 'a, AssetReaderError> {
        // create a reader
    }
}
```

`bevy::asset::io::Reader` is now a trait, rather than a type alias for a
trait object. Implementors of `AssetLoader::load` will need to adjust
the method signature accordingly

```rust
impl AssetLoader for MyLoader {
    async fn load<'a>(
        &'a self,
        // Before:
        reader: &'a mut bevy::asset::io::Reader,
        // After:
        reader: &'a mut dyn bevy::asset::io::Reader,
        _: &'a Self::Settings,
        load_context: &'a mut LoadContext<'_>,
    ) -> Result<Self::Asset, Self::Error> {
}
```

Additionally, implementors of `AssetReader` that return a type
implementing `futures_io::AsyncRead` and `AsyncSeek` might need to
explicitly implement `bevy::asset::io::Reader` for that type.

```rust
impl bevy::asset::io::Reader for MyAsyncReadAndSeek {}
```
2024-07-01 19:59:42 +00:00
Lura
856b39d821
Apply Clippy lints regarding lazy evaluation and closures (#14015)
# Objective

- Lazily evaluate
[default](https://rust-lang.github.io/rust-clippy/master/index.html#/unwrap_or_default)~~/[or](https://rust-lang.github.io/rust-clippy/master/index.html#/or_fun_call)~~
values where it makes sense
  - ~~`unwrap_or(foo())` -> `unwrap_or_else(|| foo())`~~
  - `unwrap_or(Default::default())` -> `unwrap_or_default()`
  - etc.
- Avoid creating [redundant
closures](https://rust-lang.github.io/rust-clippy/master/index.html#/redundant_closure),
even for [method
calls](https://rust-lang.github.io/rust-clippy/master/index.html#/redundant_closure_for_method_calls)
  - `map(|something| something.into())` -> `map(Into:into)`

## Solution

- Apply Clippy lints:
-
~~[or_fun_call](https://rust-lang.github.io/rust-clippy/master/index.html#/or_fun_call)~~
-
[unwrap_or_default](https://rust-lang.github.io/rust-clippy/master/index.html#/unwrap_or_default)
-
[redundant_closure_for_method_calls](https://rust-lang.github.io/rust-clippy/master/index.html#/redundant_closure_for_method_calls)
([redundant
closures](https://rust-lang.github.io/rust-clippy/master/index.html#/redundant_closure)
is already enabled)

## Testing

- Tested on Windows 11 (`stable-x86_64-pc-windows-gnu`, 1.79.0)
- Bevy compiles without errors or warnings and examples seem to work as
intended
  - `cargo clippy` 
  - `cargo run -p ci -- compile` 

---------

Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
2024-07-01 15:54:40 +00:00
re0312
dbffb41e50
Remove unnecessary compute for rotation interpolation (#14019)
# Objective

- `slerp` has a built-in short path check. And quaternions are ensured
to be normalized during loading .

## Solution
- remove it 

## Testing
`many_foxes ` in single thread

![image](https://github.com/bevyengine/bevy/assets/45868716/a7e74050-e202-4adb-9179-82a87263c300)
2024-06-25 21:14:37 +00:00
Jan Hohenheim
6273227e09
Fix lints introduced in Rust beta 1.80 (#13899)
Resolves #13895

Mostly just involves being more explicit about which parts of the docs
belong to a list and which begin a new paragraph.
- found a few docs that were malformed because of exactly this, so I
fixed that by introducing a paragraph
- added indentation to nearly all multiline lists
- fixed a few minor typos
- added `#[allow(dead_code)]` to types that are needed to test
annotations but are never constructed
([here](https://github.com/bevyengine/bevy/pull/13899/files#diff-b02b63604e569c8577c491e7a2030d456886d8f6716eeccd46b11df8aac75dafR1514)
and
[here](https://github.com/bevyengine/bevy/pull/13899/files#diff-b02b63604e569c8577c491e7a2030d456886d8f6716eeccd46b11df8aac75dafR1523))
- verified that  `cargo +beta run -p ci -- lints` passes
- verified that `cargo +beta run -p ci -- test` passes
2024-06-17 17:22:01 +00:00
Mincong Lu
651f3d08d7
Make the component types of the new animation players clonable. (#13736)
# Objective

Some use cases might require holding onto the previous state of the
animation player for change detection.

## Solution

Added `clone` and `copy` implementation to most animation types. 
Added optimized `clone_from` implementations for the specific use case
of holding a `PreviousAnimationPlayer` component.

---------

Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
2024-06-07 21:51:24 +00:00
Zachary Harrold
dcb8a13b22
Remove ClampColor (#13307)
# Objective

- Fixes #12543

## Solution

- Removed `ClampColor`

## Testing

- CI Passed

---

## Migration Guide

Manually clamp the various colour components yourself if this behaviour
is still required.

```rust
fn clamped_srgba(color: Srgba) -> Srgba {
    Srgba {
        red: color.red.clamp(0., 1.),
        green: color.green.clamp(0., 1.),
        blue: color.blue.clamp(0., 1.),
        alpha: color.alpha.clamp(0., 1.),
    }
}
```
2024-05-10 13:15:56 +00:00
BD103
e357b63448
Add README.md to all crates (#13184)
# Objective

- `README.md` is a common file that usually gives an overview of the
folder it is in.
- When on <https://crates.io>, `README.md` is rendered as the main
description.
- Many crates in this repository are lacking `README.md` files, which
makes it more difficult to understand their purpose.

<img width="1552" alt="image"
src="https://github.com/bevyengine/bevy/assets/59022059/78ebf91d-b0c4-4b18-9874-365d6310640f">

- There are also a few inconsistencies with `README.md` files that this
PR and its follow-ups intend to fix.

## Solution

- Create a `README.md` file for all crates that do not have one.
- This file only contains the title of the crate (underscores removed,
proper capitalization, acronyms expanded) and the <https://shields.io>
badges.
- Remove the `readme` field in `Cargo.toml` for `bevy` and
`bevy_reflect`.
- This field is redundant because [Cargo automatically detects
`README.md`
files](https://doc.rust-lang.org/cargo/reference/manifest.html#the-readme-field).
The field is only there if you name it something else, like `INFO.md`.
- Fix capitalization of `bevy_utils`'s `README.md`.
- It was originally `Readme.md`, which is inconsistent with the rest of
the project.
- I created two commits renaming it to `README.md`, because Git appears
to be case-insensitive.
- Expand acronyms in title of `bevy_ptr` and `bevy_utils`.
- In the commit where I created all the new `README.md` files, I
preferred using expanded acronyms in the titles. (E.g. "Bevy Developer
Tools" instead of "Bevy Dev Tools".)
- This commit changes the title of existing `README.md` files to follow
the same scheme.
- I do not feel strongly about this change, please comment if you
disagree and I can revert it.
- Add <https://shields.io> badges to `bevy_time` and `bevy_transform`,
which are the only crates currently lacking them.

---

## Changelog

- Added `README.md` files to all crates missing it.
2024-05-02 18:56:00 +00:00
Nicolas Zhao
83f1184ea3
Expose mutable Animation Clips (#13067)
# Objective

- Be able to edit animation inside the editor and save them once
modified. This will allow bevy to modify animation assets with code.
- Fixes #13052

## Solution

- Expose the previously const getters of the Animation curves

---
2024-04-23 14:58:08 +00:00
blukai
9622557093
fix find_current_keyframe panic (#12931)
# Objective

i downloaded a random model from sketchfab
(https://sketchfab.com/3d-models/dragon-glass-fe00cb0ecaca4e4595874b70de7e116b)
to fiddle with bevy and encountered a panic when attempted to play
animations:
```
thread 'Compute Task Pool (3)' panicked at /home/username/code/bevy/crates/bevy_animation/src/lib.rs:848:58:
index out of bounds: the len is 40 but the index is 40
```

"Animation / Animated Fox"
(5caf085dac/examples/animation/animated_fox.rs)
example can be used for reproduction. to reproduce download a model from
sketchfab (link above) and load it instead of loading fox.glb, keep only
`dragon_glass.glb#Animation0` and remove `1` and `2` -> run and wait 1-2
seconds for crash to happen.

## Solution

correct keyframe indexing, i guess
2024-04-13 22:32:21 +00:00
James Liu
934f2cfadf
Clean up some low level dependencies (#12858)
# Objective
Minimize the number of dependencies low in the tree.

## Solution

* Remove the dependency on rustc-hash in bevy_ecs (not used) and
bevy_macro_utils (only used in one spot).
* Deduplicate the dependency on `sha1_smol` with the existing blake3
dependency already being used for bevy_asset.
 * Remove the unused `ron` dependency on `bevy_app`
* Make the `serde` dependency for `bevy_ecs` optional. It's only used
for serializing Entity.
* Change the `wgpu` dependency to `wgpu-types`, and make it optional for
`bevy_color`.
 * Remove the unused `thread-local` dependency on `bevy_render`.
* Make multiple dependencies for `bevy_tasks` optional and enabled only
when running with the `multi-threaded` feature. Preferably they'd be
disabled all the time on wasm, but I couldn't find a clean way to do
this.

---

## Changelog
TODO 

## Migration Guide
TODO
2024-04-08 19:45:42 +00:00
Jacques Schutte
4508077297
Move FloatOrd into bevy_math (#12732)
# Objective

- Fixes #12712

## Solution

- Move the `float_ord.rs` file to `bevy_math`
- Change any `bevy_utils::FloatOrd` statements to `bevy_math::FloatOrd`

---

## Changelog

- Moved `FloatOrd` from `bevy_utils` to `bevy_math`

## Migration Guide

- References to `bevy_utils::FloatOrd` should be changed to
`bevy_math::FloatOrd`
2024-03-27 18:30:11 +00:00
James Liu
56bcbb0975
Forbid unsafe in most crates in the engine (#12684)
# Objective
Resolves #3824. `unsafe` code should be the exception, not the norm in
Rust. It's obviously needed for various use cases as it's interfacing
with platforms and essentially running the borrow checker at runtime in
the ECS, but the touted benefits of Bevy is that we are able to heavily
leverage Rust's safety, and we should be holding ourselves accountable
to that by minimizing our unsafe footprint.

## Solution
Deny `unsafe_code` workspace wide. Add explicit exceptions for the
following crates, and forbid it in almost all of the others.

* bevy_ecs - Obvious given how much unsafe is needed to achieve
performant results
* bevy_ptr - Works with raw pointers, even more low level than bevy_ecs.
 * bevy_render - due to needing to integrate with wgpu
 * bevy_window - due to needing to integrate with raw_window_handle
* bevy_utils - Several unsafe utilities used by bevy_ecs. Ideally moved
into bevy_ecs instead of made publicly usable.
 * bevy_reflect - Required for the unsafe type casting it's doing.
 * bevy_transform - for the parallel transform propagation
 * bevy_gizmos  - For the SystemParam impls it has.
* bevy_assets - To support reflection. Might not be required, not 100%
sure yet.
* bevy_mikktspace - due to being a conversion from a C library. Pending
safe rewrite.
* bevy_dynamic_plugin - Inherently unsafe due to the dynamic loading
nature.

Several uses of unsafe were rewritten, as they did not need to be using
them:

* bevy_text - a case of `Option::unchecked` could be rewritten as a
normal for loop and match instead of an iterator.
* bevy_color - the Pod/Zeroable implementations were replaceable with
bytemuck's derive macros.
2024-03-27 03:30:08 +00:00
James Liu
f096ad4155
Set the logo and favicon for all of Bevy's published crates (#12696)
# Objective
Currently the built docs only shows the logo and favicon for the top
level `bevy` crate. This makes views like
https://docs.rs/bevy_ecs/latest/bevy_ecs/ look potentially unrelated to
the project at first glance.

## Solution
Reproduce the docs attributes for every crate that Bevy publishes.

Ideally this would be done with some workspace level Cargo.toml control,
but AFAICT, such support does not exist.
2024-03-25 18:52:50 +00:00
Ame
72c51cdab9
Make feature(doc_auto_cfg) work (#12642)
# Objective

- In #12366 `![cfg_attr(docsrs, feature(doc_auto_cfg))] `was added. But
to apply it it needs `--cfg=docsrs` in rustdoc-args.


## Solution

- Apply `--cfg=docsrs` to all crates and CI.

I also added `[package.metadata.docs.rs]` to all crates to avoid adding
code behind a feature and forget adding the metadata.

Before:

![Screenshot 2024-03-22 at 00 51
57](https://github.com/bevyengine/bevy/assets/104745335/6a9dfdaa-8710-4784-852b-5f9b74e3522c)

After:
![Screenshot 2024-03-22 at 00 51
32](https://github.com/bevyengine/bevy/assets/104745335/c5bd6d8e-8ddb-45b3-b844-5ecf9f88961c)
2024-03-23 02:22:52 +00:00
Lynn
6910ca3e8a
Implement maths and Animatable for Srgba (#12649)
# Objective

- Implements maths and `Animatable` for `Srgba` as suggested
[here](https://github.com/bevyengine/bevy/issues/12617#issuecomment-2013494774).

## Solution

- Implements `Animatable` and maths for `Srgba` just like their
implemented for other colors.

---

## Changelog

- Updated the example to mention `Srgba`.

## Migration Guide

- The previously existing implementation of mul/div for `Srgba` did not
modify `alpha` but these operations do modify `alpha` now. Users need to
be aware of this change.
2024-03-22 17:31:48 +00:00
Lynn
887bc27a6f
Animatable for colors (#12614)
# Objective

- Fixes #12202 

## Solution

- Implements `Animatable` for all color types implementing arithmetic
operations.
  - the colors returned by `Animatable`s methods are already clamped.
- Adds a `color_animation.rs` example.
- Implements the `*Assign` operators for color types that already had
the corresponding operators. This is just a 'nice to have' and I am
happy to remove this if it's not wanted.

---

## Changelog

- `bevy_animation` now depends on `bevy_color`.
- `LinearRgba`, `Laba`, `Oklaba` and `Xyza` implement `Animatable`.

---------

Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Zachary Harrold <zac@harrold.com.au>
2024-03-22 00:06:24 +00:00
Arthur Brussee
ac49dce4ca
Use async-fn in traits rather than BoxedFuture (#12550)
# Objective

Simplify implementing some asset traits without Box::pin(async move{})
shenanigans.
Fixes (in part) https://github.com/bevyengine/bevy/issues/11308

## Solution
Use async-fn in traits when possible in all traits. Traits with return
position impl trait are not object safe however, and as AssetReader and
AssetWriter are both used with dynamic dispatch, you need a Boxed
version of these futures anyway.

In the future, Rust is [adding
](https://blog.rust-lang.org/2023/12/21/async-fn-rpit-in-traits.html)proc
macros to generate these traits automatically, and at some point in the
future dyn traits should 'just work'. Until then.... this seemed liked
the right approach given more ErasedXXX already exist, but, no clue if
there's plans here! Especially since these are public now, it's a bit of
an unfortunate API, and means this is a breaking change.

In theory this saves some performance when these traits are used with
static dispatch, but, seems like most code paths go through dynamic
dispatch, which boxes anyway.

I also suspect a bunch of the lifetime annotations on these function
could be simplified now as the BoxedFuture was often the only thing
returned which needed a lifetime annotation, but I'm not touching that
for now as traits + lifetimes can be so tricky.

This is a revival of
[pull/11362](https://github.com/bevyengine/bevy/pull/11362) after a
spectacular merge f*ckup, with updates to the latest Bevy. Just to recap
some discussion:
- Overall this seems like a win for code quality, especially when
implementing these traits, but a loss for having to deal with ErasedXXX
variants.
- `ConditionalSend` was the preferred name for the trait that might be
Send, to deal with wasm platforms.
- When reviewing be sure to disable whitespace difference, as that's 95%
of the PR.


## Changelog
- AssetReader, AssetWriter, AssetLoader, AssetSaver and Process now use
async-fn in traits rather than boxed futures.

## Migration Guide
- Custom implementations of AssetReader, AssetWriter, AssetLoader,
AssetSaver and Process should switch to async fn rather than returning a
bevy_utils::BoxedFuture.
- Simultaniously, to use dynamic dispatch on these traits you should
instead use dyn ErasedXXX.
2024-03-18 17:56:57 +00:00
James Liu
8327ce85d8
Update to fixedbitset 0.5 (#12512)
# Objective
Improve code quality involving fixedbitset.

## Solution
Update to fixedbitset 0.5. Use the new `grow_and_insert` function
instead of `grow` and `insert` functions separately.

This should also speed up most of the set operations involving
fixedbitset. They should be ~2x faster, but testing this against the
stress tests seems to show little to no difference. The multithreaded
executor doesn't seem to be all that much faster in many_cubes and
many_foxes. These use cases are likely dominated by other operations or
the bitsets aren't big enough to make them the bottleneck.

This introduces a duplicate dependency due to petgraph and wgpu, but the
former may take some time to update.

## Changelog
Removed: `Access::grow`

## Migration Guide
`Access::grow` has been removed. It's no longer needed. Remove all
references to it.
2024-03-17 18:43:05 +00:00
Patrick Walton
dfdf2b9ea4
Implement the AnimationGraph, allowing for multiple animations to be blended together. (#11989)
This is an implementation of RFC #51:
https://github.com/bevyengine/rfcs/blob/main/rfcs/51-animation-composition.md

Note that the implementation strategy is different from the one outlined
in that RFC, because two-phase animation has now landed.

# Objective

Bevy needs animation blending. The RFC for this is [RFC 51].

## Solution

This is an implementation of the RFC. Note that the implementation
strategy is different from the one outlined there, because two-phase
animation has now landed.

This is just a draft to get the conversation started. Currently we're
missing a few things:

- [x] A fully-fleshed-out mechanism for transitions
- [x] A serialization format for `AnimationGraph`s
- [x] Examples are broken, other than `animated_fox`
- [x] Documentation

---

## Changelog

### Added

* The `AnimationPlayer` has been reworked to support blending multiple
animations together through an `AnimationGraph`, and as such will no
longer function unless a `Handle<AnimationGraph>` has been added to the
entity containing the player. See [RFC 51] for more details.

* Transition functionality has moved from the `AnimationPlayer` to a new
component, `AnimationTransitions`, which works in tandem with the
`AnimationGraph`.

## Migration Guide

* `AnimationPlayer`s can no longer play animations by themselves and
need to be paired with a `Handle<AnimationGraph>`. Code that was using
`AnimationPlayer` to play animations will need to create an
`AnimationGraph` asset first, add a node for the clip (or clips) you
want to play, and then supply the index of that node to the
`AnimationPlayer`'s `play` method.

* The `AnimationPlayer::play_with_transition()` method has been removed
and replaced with the `AnimationTransitions` component. If you were
previously using `AnimationPlayer::play_with_transition()`, add all
animations that you were playing to the `AnimationGraph`, and create an
`AnimationTransitions` component to manage the blending between them.

[RFC 51]:
https://github.com/bevyengine/rfcs/blob/main/rfcs/51-animation-composition.md

---------

Co-authored-by: Rob Parrett <robparrett@gmail.com>
2024-03-07 20:22:42 +00:00
James Liu
512b7463a3
Disentangle bevy_utils/bevy_core's reexported dependencies (#12313)
# Objective
Make bevy_utils less of a compilation bottleneck. Tackle #11478.

## Solution
* Move all of the directly reexported dependencies and move them to
where they're actually used.
* Remove the UUID utilities that have gone unused since `TypePath` took
over for `TypeUuid`.
* There was also a extraneous bytemuck dependency on `bevy_core` that
has not been used for a long time (since `encase` became the primary way
to prepare GPU buffers).
* Remove the `all_tuples` macro reexport from bevy_ecs since it's
accessible from `bevy_utils`.

---

## Changelog
Removed: Many of the reexports from bevy_utils (petgraph, uuid, nonmax,
smallvec, and thiserror).
Removed: bevy_core's reexports of bytemuck.

## Migration Guide
bevy_utils' reexports of petgraph, uuid, nonmax, smallvec, and thiserror
have been removed.

bevy_core' reexports of bytemuck's types has been removed. 

Add them as dependencies in your own crate instead.
2024-03-07 02:30:15 +00:00
James Liu
9e5db9abc7
Clean up type registrations (#12314)
# Objective
Fix #12304. Remove unnecessary type registrations thanks to #4154.

## Solution
Conservatively remove type registrations. Keeping the top level
components, resources, and events, but dropping everything else that is
a type of a member of those types.
2024-03-06 16:05:53 +00:00
James Liu
5619bd09d1
Replace bevy_log's tracing reexport with bevy_utils' (#12254)
# Objective
Fixes #11298. Make the use of bevy_log vs bevy_utils::tracing more
consistent.

## Solution
Replace all uses of bevy_log's logging macros with the reexport from
bevy_utils. Remove bevy_log as a dependency where it's no longer needed
anymore.

Ideally we should just be using tracing directly, but given that all of
these crates are already using bevy_utils, this likely isn't that great
of a loss right now.
2024-03-02 18:38:04 +00:00
github-actions[bot]
e7c3359c4b
Bump Version after Release (#12020)
Fixes #12016.

Bump version after release
This PR has been auto-generated

Co-authored-by: Bevy Auto Releaser <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: François <mockersf@gmail.com>
2024-02-21 20:58:59 +00:00
Martin Svanberg
37e632145a
Fix docs for quaternion interpolation (#12014)
# Objective

The docs currently state that it's doing an nlerp, which is not true.

## Solution

Docs now describe the implementation.
2024-02-20 23:26:40 +00:00
Patrick Walton
5f1dd3918b
Rework animation to be done in two phases. (#11707)
# Objective

Bevy's animation system currently does tree traversals based on `Name`
that aren't necessary. Not only do they require in unsafe code because
tree traversals are awkward with parallelism, but they are also somewhat
slow, brittle, and complex, which manifested itself as way too many
queries in #11670.

# Solution

Divide animation into two phases: animation *advancement* and animation
*evaluation*, which run after one another. *Advancement* operates on the
`AnimationPlayer` and sets the current animation time to match the game
time. *Evaluation* operates on all animation bones in the scene in
parallel and sets the transforms and/or morph weights based on the time
and the clip.

To do this, we introduce a new component, `AnimationTarget`, which the
asset loader places on every bone. It contains the ID of the entity
containing the `AnimationPlayer`, as well as a UUID that identifies
which bone in the animation the target corresponds to. In the case of
glTF, the UUID is derived from the full path name to the bone. The rule
that `AnimationTarget`s are descendants of the entity containing
`AnimationPlayer` is now just a convention, not a requirement; this
allows us to eliminate the unsafe code.

# Migration guide

* `AnimationClip` now uses UUIDs instead of hierarchical paths based on
the `Name` component to refer to bones. This has several consequences:
- A new component, `AnimationTarget`, should be placed on each bone that
you wish to animate, in order to specify its UUID and the associated
`AnimationPlayer`. The glTF loader automatically creates these
components as necessary, so most uses of glTF rigs shouldn't need to
change.
- Moving a bone around the tree, or renaming it, no longer prevents an
`AnimationPlayer` from affecting it.
- Dynamically changing the `AnimationPlayer` component will likely
require manual updating of the `AnimationTarget` components.
* Entities with `AnimationPlayer` components may now possess descendants
that also have `AnimationPlayer` components. They may not, however,
animate the same bones.
* As they aren't specific to `TypeId`s,
`bevy_reflect::utility::NoOpTypeIdHash` and
`bevy_reflect::utility::NoOpTypeIdHasher` have been renamed to
`bevy_reflect::utility::NoOpHash` and
`bevy_reflect::utility::NoOpHasher` respectively.
2024-02-19 14:59:54 +00:00
Carter Anderson
abb8c353f4
Release 0.13.0 (#11920)
Bump Bevy crates to 0.13.0 in preparation for release.

(Note that we accidentally skipped the `0.13.0-dev` step this cycle)
2024-02-17 09:24:25 +00:00
Evgeny Kropotin
149d48f586
Add type registrations for animation types (#11889)
# Objective
Adds type registrations for some animation and math types

Fixes #11848
2024-02-16 13:17:42 +00:00
BD103
8018d62e41
Use question mark operator when possible (#11865)
# Objective

- There are multiple instances of `let Some(x) = ... else { None };`
throughout the project.
- Because `Option<T>` implements
[`Try`](https://doc.rust-lang.org/stable/std/ops/trait.Try.html), it can
use the question mark `?` operator.

## Solution

- Use question mark operator instead of `let Some(x) = ... else { None
}`.

---

There was another PR that did a similar thing a few weeks ago, but I
couldn't find it.
2024-02-14 18:44:33 +00:00
Tristan Guichaoua
694c06f3d0
Inverse missing_docs logic (#11676)
# Objective

Currently the `missing_docs` lint is allowed-by-default and enabled at
crate level when their documentations is complete (see #3492).
This PR proposes to inverse this logic by making `missing_docs`
warn-by-default and mark crates with imcomplete docs allowed.

## Solution

Makes `missing_docs` warn at workspace level and allowed at crate level
when the docs is imcomplete.
2024-02-03 21:40:55 +00:00
James Liu
602515d8aa
Animatable trait for interpolation and blending (#4482)
# Objective
Allow animation of types other than translation, scale, and rotation on
`Transforms`.

## Solution
Add a base trait for all values that can be animated by the animation
system. This provides the basic operations for sampling and blending
animation values for more than just translation, rotation, and scale.

This implements part of bevyengine/rfcs#51, but is missing the
implementations for `Range<T>` and `Color`. This also does not fully
integrate with the existing `AnimationPlayer` yet, just setting up the
trait.

---------

Co-authored-by: Kirillov Kirill <kirusfg@gmail.com>
Co-authored-by: François <mockersf@gmail.com>
Co-authored-by: irate <JustTheCoolDude@gmail.com>
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Alice Cecile <alice.i.cecil@gmail.com>
2024-02-02 21:19:37 +00:00
Kanabenki
e94297fdce
Replace the cubic_spline_interpolation macro with a generic function (#11605)
# Objective

- Address a `TODO` item in `bevy_animation`.

## Solution

- Replace the `cubic_spline_interpolation` macro with a function.

The function isn't marked as `#[inline(always)]` but from what I checked
with `cargo asm` it gets inlined (even in debug, unless I explicitly add
`#[inline(never)]`), so this should be identical to the macro. If needed
I can add the attribute.
2024-01-29 19:50:30 +00:00
Nicola Papale
78b5f323f8
Skip alloc when updating animation path cache (#11330)
Not always, but skip it if the new length is smaller.

For context, `path_cache` is a `Vec<Vec<Option<Entity>>>`.

# Objective

Previously, when setting a new length to the `path_cache`, we would:

1. Deallocate all existing `Vec<Option<Entity>>`
2. Deallocate the `path_cache`
3. Allocate a new `Vec<Vec<Option<Entity>>>`, where each item is an
empty `Vec`, and would have to be allocated when pushed to.

This is a lot of allocations!

## Solution

Use
[`Vec::resize_with`](https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.resize_with).

With this change, what occurs is:

1. We `clear` each `Vec<Option<Entity>>`, keeping the allocation, but
making the memory of each `Vec` re-usable
2. We only append new `Vec` to `path_cache` when it is too small.

* Fixes #11328 

### Note on performance

I didn't benchmark it, I just ran a diff on the generated assembly (ran
with `--profile stress-test` and `--native`). I found this PR has 20
less instructions in `apply_animation` (out of 2504).

Though on a purely abstract level, I can deduce this leads to less
allocation.

More information on profiling allocations in rust:
https://nnethercote.github.io/perf-book/heap-allocations.html

## Future work

I think a [jagged vec](https://en.wikipedia.org/wiki/Jagged_array) would
be much more pertinent. Because it allocates everything in a single
contiguous buffer.

This would avoid dancing around allocations, and reduces the overhead of
one `*mut T` and two `usize` per row, also removes indirection,
improving cache efficiency. I think it would both improve code quality
and performance.
2024-01-13 19:33:11 +00:00
Alice Cecile
98b62e829d
Clean up code to find the current keyframe (#11306)
# Objective

While working on #10832, I found this code very dense and hard to
understand.

I was not confident in my fix (or the correctness of the existing code).

## Solution

Clean up, test and document the code used in the `apply_animation`
system.

I also added a pair of length-related utility methods to `Keyframes` for
easier testing. They seemed generically useful, so I made them pub.

## Changelog

- Added `VariableCurve::find_current_keyframe` method.
- Added `Keyframes::len` and `is_empty` methods.

---------

Co-authored-by: Alice Cecile <alice.i.cecil@gmail.com>
2024-01-13 13:25:28 +00:00
irate
ec14e946b8
Update glam, encase and hexasphere (#11082)
Update to `glam` 0.25, `encase` 0.7 and `hexasphere` to 10.0

## Changelog
Added the `FloatExt` trait to the `bevy_math` prelude which adds `lerp`,
`inverse_lerp` and `remap` methods to the `f32` and `f64` types.
2024-01-08 22:58:45 +00:00
François
71adb77a2e
support all types of animation interpolation from gltf (#10755)
# Objective

- Support step and cubic spline interpolation from gltf

## Solution

- Support step and cubic spline interpolation from gltf

Tested with
https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/InterpolationTest
expected: 

![](https://raw.githubusercontent.com/KhronosGroup/glTF-Sample-Models/master/2.0/InterpolationTest/screenshot/screenshot.gif)
result: 

![output](https://github.com/bevyengine/bevy/assets/8672791/e7f1afd5-20c9-4921-97d4-8d0c82203068)

---

## Migration Guide

When manually specifying an animation `VariableCurve`, the interpolation
type must be specified:

- Bevy 0.12
```rust
        VariableCurve {
            keyframe_timestamps: vec![0.0, 1.0, 2.0, 3.0, 4.0],
            keyframes: Keyframes::Rotation(vec![
                Quat::IDENTITY,
                Quat::from_axis_angle(Vec3::Y, PI / 2.),
                Quat::from_axis_angle(Vec3::Y, PI / 2. * 2.),
                Quat::from_axis_angle(Vec3::Y, PI / 2. * 3.),
                Quat::IDENTITY,
            ]),
        },
```

- Bevy 0.13
```rust
        VariableCurve {
            keyframe_timestamps: vec![0.0, 1.0, 2.0, 3.0, 4.0],
            keyframes: Keyframes::Rotation(vec![
                Quat::IDENTITY,
                Quat::from_axis_angle(Vec3::Y, PI / 2.),
                Quat::from_axis_angle(Vec3::Y, PI / 2. * 2.),
                Quat::from_axis_angle(Vec3::Y, PI / 2. * 3.),
                Quat::IDENTITY,
            ]),
            interpolation: Interpolation::Linear,
        },
```
2023-12-31 18:01:50 +00:00
Tim Siegel
1ab0f28acd
docs: AnimationPlayer::play doesn't have transition_duration arg (#10970)
# Objective

The documentation for `AnimationPlayer::play` mentions a non-existent
`transition_duration` argument from an old iteration of the API. It's
confusing.

## Solution

Remove the offending sentence.
2023-12-13 18:51:34 +00:00
TheBigCheese
e67cfdf82b
Enable clippy::undocumented_unsafe_blocks warning across the workspace (#10646)
# Objective

Enables warning on `clippy::undocumented_unsafe_blocks` across the
workspace rather than only in `bevy_ecs`, `bevy_transform` and
`bevy_utils`. This adds a little awkwardness in a few areas of code that
have trivial safety or explain safety for multiple unsafe blocks with
one comment however automatically prevents these comments from being
missed.

## Solution

This adds `undocumented_unsafe_blocks = "warn"` to the workspace
`Cargo.toml` and fixes / adds a few missed safety comments. I also added
`#[allow(clippy::undocumented_unsafe_blocks)]` where the safety is
explained somewhere above.

There are a couple of safety comments I added I'm not 100% sure about in
`bevy_animation` and `bevy_render/src/view` and I'm not sure about the
use of `#[allow(clippy::undocumented_unsafe_blocks)]` compared to adding
comments like `// SAFETY: See above`.
2023-11-21 02:06:24 +00:00
Ame
8c0ce5280b
Standardize toml format with taplo (#10594)
# Objective

- Standardize fmt for toml files

## Solution

- Add [taplo](https://taplo.tamasfe.dev/) to CI (check for fmt and diff
for toml files), for context taplo is used by the most popular extension
in VScode [Even Better
TOML](https://marketplace.visualstudio.com/items?itemName=tamasfe.even-better-toml
- Add contribution section to explain toml fmt with taplo.
 
Now to pass CI you need to run `taplo fmt --option indent_string=" "` or
if you use vscode have the `Even Better TOML` extension with 4 spaces
for indent

---------

Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
2023-11-21 01:04:14 +00:00
Ame
951c9bb1a2
Add [lints] table, fix adding #![allow(clippy::type_complexity)] everywhere (#10011)
# Objective

- Fix adding `#![allow(clippy::type_complexity)]` everywhere. like #9796

## Solution

- Use the new [lints] table that will land in 1.74
(https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#lints)
- inherit lint to the workspace, crates and examples.
```
[lints]
workspace = true
```

## Changelog

- Bump rust version to 1.74
- Enable lints table for the workspace
```toml
[workspace.lints.clippy]
type_complexity = "allow"
```
- Allow type complexity for all crates and examples
```toml
[lints]
workspace = true
```

---------

Co-authored-by: Martín Maita <47983254+mnmaita@users.noreply.github.com>
2023-11-18 20:58:48 +00:00
AxiomaticSemantics
8c15713b9a
Add Debug, PartialEq and Eq derives to bevy_animation. (#10562)
# Objective

- Add `Debug` `PartialEq` and `Eq` impl's to `RepeatAnimation`

## Solution

- Add the wanted derives.

Co-authored-by: ebola <dev@axiomatic>
2023-11-15 14:05:04 +00:00
Nicola Papale
c730d8c4cc
Fix animations resetting after repeat count (#10540)
# Objective

After #9002, it seems that "single shot" animations were broken. When
completing, they would reset to their initial value. Which is generally
not what you want.

- Fixes #10480

## Solution

Avoid `%`-ing the animation after the number of completions exceeds the
specified one. Instead, we early-return. This is also true when the
player is playing in reverse.

---

## Changelog

- Avoid resetting animations after `Repeat::Never` animation completion.
2023-11-14 01:59:36 +00:00