mirror of
https://github.com/bevyengine/bevy
synced 2024-11-22 20:53:53 +00:00
b6a647cc01
Adds a `default()` shorthand for `Default::default()` ... because life is too short to constantly type `Default::default()`.
```rust
use bevy::prelude::*;
#[derive(Default)]
struct Foo {
bar: usize,
baz: usize,
}
// Normally you would do this:
let foo = Foo {
bar: 10,
..Default::default()
};
// But now you can do this:
let foo = Foo {
bar: 10,
..default()
};
```
The examples have been adapted to use `..default()`. I've left internal crates as-is for now because they don't pull in the bevy prelude, and the ergonomics of each case should be considered individually.
74 lines
2.3 KiB
Rust
74 lines
2.3 KiB
Rust
use bevy::prelude::*;
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/// This example shows how to configure Physically Based Rendering (PBR) parameters.
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fn main() {
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App::new()
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.add_plugins(DefaultPlugins)
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.add_startup_system(setup)
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.run();
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}
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/// set up a simple 3D scene
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fn setup(
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mut commands: Commands,
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mut meshes: ResMut<Assets<Mesh>>,
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mut materials: ResMut<Assets<StandardMaterial>>,
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) {
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// add entities to the world
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for y in -2..=2 {
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for x in -5..=5 {
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let x01 = (x + 5) as f32 / 10.0;
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let y01 = (y + 2) as f32 / 4.0;
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// sphere
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commands.spawn_bundle(PbrBundle {
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mesh: meshes.add(Mesh::from(shape::Icosphere {
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radius: 0.45,
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subdivisions: 32,
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})),
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material: materials.add(StandardMaterial {
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base_color: Color::hex("ffd891").unwrap(),
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// vary key PBR parameters on a grid of spheres to show the effect
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metallic: y01,
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perceptual_roughness: x01,
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..default()
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}),
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transform: Transform::from_xyz(x as f32, y as f32 + 0.5, 0.0),
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..default()
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});
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}
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}
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// unlit sphere
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commands.spawn_bundle(PbrBundle {
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mesh: meshes.add(Mesh::from(shape::Icosphere {
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radius: 0.45,
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subdivisions: 32,
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})),
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material: materials.add(StandardMaterial {
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base_color: Color::hex("ffd891").unwrap(),
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// vary key PBR parameters on a grid of spheres to show the effect
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unlit: true,
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..default()
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}),
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transform: Transform::from_xyz(-5.0, -2.5, 0.0),
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..default()
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});
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// light
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commands.spawn_bundle(PointLightBundle {
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transform: Transform::from_xyz(50.0, 50.0, 50.0),
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point_light: PointLight {
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intensity: 600000.,
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range: 100.,
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..default()
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},
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..default()
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});
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// camera
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commands.spawn_bundle(OrthographicCameraBundle {
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transform: Transform::from_xyz(0.0, 0.0, 8.0).looking_at(Vec3::default(), Vec3::Y),
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orthographic_projection: OrthographicProjection {
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scale: 0.01,
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..default()
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},
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..OrthographicCameraBundle::new_3d()
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});
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}
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