bevy/crates/bevy_animation/Cargo.toml
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

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1.4 KiB
TOML

[package]
name = "bevy_animation"
version = "0.14.0-dev"
edition = "2021"
description = "Provides animation functionality for Bevy Engine"
homepage = "https://bevyengine.org"
repository = "https://github.com/bevyengine/bevy"
license = "MIT OR Apache-2.0"
keywords = ["bevy"]
[dependencies]
# bevy
bevy_app = { path = "../bevy_app", version = "0.14.0-dev" }
bevy_asset = { path = "../bevy_asset", version = "0.14.0-dev" }
bevy_core = { path = "../bevy_core", version = "0.14.0-dev" }
bevy_derive = { path = "../bevy_derive", version = "0.14.0-dev" }
bevy_log = { path = "../bevy_log", version = "0.14.0-dev" }
bevy_math = { path = "../bevy_math", version = "0.14.0-dev" }
bevy_reflect = { path = "../bevy_reflect", version = "0.14.0-dev", features = [
"bevy",
"petgraph",
] }
bevy_render = { path = "../bevy_render", version = "0.14.0-dev" }
bevy_time = { path = "../bevy_time", version = "0.14.0-dev" }
bevy_utils = { path = "../bevy_utils", version = "0.14.0-dev" }
bevy_ecs = { path = "../bevy_ecs", version = "0.14.0-dev" }
bevy_transform = { path = "../bevy_transform", version = "0.14.0-dev" }
bevy_hierarchy = { path = "../bevy_hierarchy", version = "0.14.0-dev" }
# other
fixedbitset = "0.4"
petgraph = { version = "0.6", features = ["serde-1"] }
ron = "0.8"
serde = "1"
sha1_smol = { version = "1.0" }
thiserror = "1"
thread_local = "1"
uuid = { version = "1.7", features = ["v4"] }
[lints]
workspace = true