bevy/examples/3d/load_gltf_extras.rs
Pablo Reinhardt d96a9d15f6
Migrate from Query::single and friends to Single (#15872)
# Objective

- closes #15866

## Solution

- Simply migrate where possible.

## Testing

- Expect that CI will do most of the work. Examples is another way of
testing this, as most of the work is in that area.
---

## Notes
For now, this PR doesn't migrate `QueryState::single` and friends as for
now, this look like another issue. So for example, QueryBuilders that
used single or `World::query` that used single wasn't migrated. If there
is a easy way to migrate those, please let me know.

Most of the uses of `Query::single` were removed, the only other uses
that I found was related to tests of said methods, so will probably be
removed when we remove `Query::single`.
2024-10-13 20:32:06 +00:00

91 lines
2.4 KiB
Rust

//! Loads and renders a glTF file as a scene, and list all the different `gltf_extras`.
use bevy::{
gltf::{GltfExtras, GltfMaterialExtras, GltfMeshExtras, GltfSceneExtras},
prelude::*,
};
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.add_systems(Startup, setup)
.add_systems(Update, check_for_gltf_extras)
.run();
}
#[derive(Component)]
struct ExampleDisplay;
fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
commands.spawn((
Camera3d::default(),
Transform::from_xyz(2.0, 2.0, 2.0).looking_at(Vec3::ZERO, Vec3::Y),
));
commands.spawn(DirectionalLight {
shadows_enabled: true,
..default()
});
// a barebones scene containing one of each gltf_extra type
commands.spawn(SceneRoot(asset_server.load(
GltfAssetLabel::Scene(0).from_asset("models/extras/gltf_extras.glb"),
)));
// a place to display the extras on screen
commands.spawn((
Text::default(),
TextFont {
font_size: 15.,
..default()
},
Style {
position_type: PositionType::Absolute,
top: Val::Px(12.0),
left: Val::Px(12.0),
..default()
},
ExampleDisplay,
));
}
fn check_for_gltf_extras(
gltf_extras_per_entity: Query<(
Entity,
Option<&Name>,
Option<&GltfSceneExtras>,
Option<&GltfExtras>,
Option<&GltfMeshExtras>,
Option<&GltfMaterialExtras>,
)>,
mut display: Single<&mut Text, With<ExampleDisplay>>,
) {
let mut gltf_extra_infos_lines: Vec<String> = vec![];
for (id, name, scene_extras, extras, mesh_extras, material_extras) in
gltf_extras_per_entity.iter()
{
if scene_extras.is_some()
|| extras.is_some()
|| mesh_extras.is_some()
|| material_extras.is_some()
{
let formatted_extras = format!(
"Extras per entity {} ('Name: {}'):
- scene extras: {:?}
- primitive extras: {:?}
- mesh extras: {:?}
- material extras: {:?}
",
id,
name.unwrap_or(&Name::default()),
scene_extras,
extras,
mesh_extras,
material_extras
);
gltf_extra_infos_lines.push(formatted_extras);
}
display.0 = gltf_extra_infos_lines.join("\n");
}
}