bevy/examples/3d/wireframe.rs
Carter Anderson b6a647cc01 default() shorthand (#4071)
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.
2022-03-01 20:52:09 +00:00

55 lines
1.7 KiB
Rust

use bevy::{
pbr::wireframe::{Wireframe, WireframeConfig, WireframePlugin},
prelude::*,
render::{render_resource::WgpuFeatures, settings::WgpuSettings},
};
fn main() {
App::new()
.insert_resource(Msaa { samples: 4 })
.insert_resource(WgpuSettings {
features: WgpuFeatures::POLYGON_MODE_LINE,
..default()
})
.add_plugins(DefaultPlugins)
.add_plugin(WireframePlugin)
.add_startup_system(setup)
.run();
}
/// set up a simple 3D scene
fn setup(
mut commands: Commands,
mut wireframe_config: ResMut<WireframeConfig>,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<StandardMaterial>>,
) {
// To draw the wireframe on all entities, set this to 'true'
wireframe_config.global = false;
// plane
commands.spawn_bundle(PbrBundle {
mesh: meshes.add(Mesh::from(shape::Plane { size: 5.0 })),
material: materials.add(Color::rgb(0.3, 0.5, 0.3).into()),
..default()
});
// cube
commands
.spawn_bundle(PbrBundle {
mesh: meshes.add(Mesh::from(shape::Cube { size: 1.0 })),
material: materials.add(Color::rgb(0.8, 0.7, 0.6).into()),
transform: Transform::from_xyz(0.0, 0.5, 0.0),
..default()
})
// This enables wireframe drawing on this entity
.insert(Wireframe);
// light
commands.spawn_bundle(PointLightBundle {
transform: Transform::from_xyz(4.0, 8.0, 4.0),
..default()
});
// camera
commands.spawn_bundle(PerspectiveCameraBundle {
transform: Transform::from_xyz(-2.0, 2.5, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
}