bevy/examples/asset/embedded_asset.rs
Emerson Coskey 7d40e3ec87
Migrate bevy_sprite to required components (#15489)
# Objective

Continue migration of bevy APIs to required components, following
guidance of https://hackmd.io/@bevy/required_components/

## Solution

- Make `Sprite` require `Transform` and `Visibility` and
`SyncToRenderWorld`
- move image and texture atlas handles into `Sprite`
- deprecate `SpriteBundle`
- remove engine uses of `SpriteBundle`

## Testing

ran cargo tests on bevy_sprite and tested several sprite examples.

---

## Migration Guide

Replace all uses of `SpriteBundle` with `Sprite`. There are several new
convenience constructors: `Sprite::from_image`,
`Sprite::from_atlas_image`, `Sprite::from_color`.

WARNING: use of `Handle<Image>` and `TextureAtlas` as components on
sprite entities will NO LONGER WORK. Use the fields on `Sprite` instead.
I would have removed the `Component` impls from `TextureAtlas` and
`Handle<Image>` except it is still used within ui. We should fix this
moving forward with the migration.
2024-10-09 16:17:26 +00:00

52 lines
1.6 KiB
Rust

//! Example of loading an embedded asset.
use bevy::{
asset::{embedded_asset, io::AssetSourceId, AssetPath},
prelude::*,
};
use std::path::Path;
fn main() {
App::new()
.add_plugins((DefaultPlugins, EmbeddedAssetPlugin))
.add_systems(Startup, setup)
.run();
}
struct EmbeddedAssetPlugin;
impl Plugin for EmbeddedAssetPlugin {
fn build(&self, app: &mut App) {
// We get to choose some prefix relative to the workspace root which
// will be ignored in "embedded://" asset paths.
let omit_prefix = "examples/asset";
// Path to asset must be relative to this file, because that's how
// include_bytes! works.
embedded_asset!(app, omit_prefix, "files/bevy_pixel_light.png");
}
}
fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
commands.spawn(Camera2d);
// Each example is its own crate (with name from [[example]] in Cargo.toml).
let crate_name = "embedded_asset";
// The actual file path relative to workspace root is
// "examples/asset/files/bevy_pixel_light.png".
//
// We omit the "examples/asset" from the embedded_asset! call and replace it
// with the crate name.
let path = Path::new(crate_name).join("files/bevy_pixel_light.png");
let source = AssetSourceId::from("embedded");
let asset_path = AssetPath::from_path(&path).with_source(source);
// You could also parse this URL-like string representation for the asset
// path.
assert_eq!(
asset_path,
"embedded://embedded_asset/files/bevy_pixel_light.png".into()
);
commands.spawn(Sprite::from_image(asset_server.load(asset_path)));
}