mirror of
https://github.com/bevyengine/bevy
synced 2024-09-20 22:42:08 +00:00
1ba7429371
# Objective Provide a starting point for #3951, or a partial solution. Providing a few comment blocks to discuss, and hopefully find better one in the process. ## Solution Since I am pretty new to pretty much anything in this context, I figured I'd just start with a draft for some file level doc blocks. For some of them I found more relevant details (or at least things I considered interessting), for some others there is less. ## Changelog - Moved some existing comments from main() functions in the 2d examples to the file header level - Wrote some more comment blocks for most other 2d examples TODO: - [x] 2d/sprite_sheet, wasnt able to come up with something good yet - [x] all other example groups... Also: Please let me know if the commit style is okay, or to verbose. I could certainly squash these things, or add more details if needed. I also hope its okay to raise this PR this early, with just a few files changed. Took me long enough and I dont wanted to let it go to waste because I lost motivation to do the whole thing. Additionally I am somewhat uncertain over the style and contents of the commets. So let me know what you thing please.
83 lines
3 KiB
Rust
83 lines
3 KiB
Rust
//! This example illustrates how to override the window scale factor imposed by the
|
|
//! operating system.
|
|
|
|
use bevy::prelude::*;
|
|
|
|
fn main() {
|
|
App::new()
|
|
.insert_resource(WindowDescriptor {
|
|
width: 500.,
|
|
height: 300.,
|
|
..default()
|
|
})
|
|
.add_plugins(DefaultPlugins)
|
|
.add_startup_system(setup)
|
|
.add_system(toggle_override)
|
|
.add_system(change_scale_factor)
|
|
.run();
|
|
}
|
|
|
|
fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
|
|
// ui camera
|
|
commands.spawn_bundle(UiCameraBundle::default());
|
|
// root node
|
|
commands
|
|
.spawn_bundle(NodeBundle {
|
|
style: Style {
|
|
size: Size::new(Val::Percent(100.0), Val::Percent(100.0)),
|
|
justify_content: JustifyContent::SpaceBetween,
|
|
..default()
|
|
},
|
|
color: Color::NONE.into(),
|
|
..default()
|
|
})
|
|
.with_children(|parent| {
|
|
// left vertical fill (border)
|
|
parent
|
|
.spawn_bundle(NodeBundle {
|
|
style: Style {
|
|
size: Size::new(Val::Px(200.0), Val::Percent(100.0)),
|
|
border: UiRect::all(Val::Px(2.0)),
|
|
..default()
|
|
},
|
|
color: Color::rgb(0.65, 0.65, 0.65).into(),
|
|
..default()
|
|
})
|
|
.with_children(|parent| {
|
|
parent.spawn_bundle(TextBundle {
|
|
style: Style {
|
|
align_self: AlignSelf::FlexEnd,
|
|
..default()
|
|
},
|
|
text: Text::with_section(
|
|
"Example text",
|
|
TextStyle {
|
|
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
|
|
font_size: 30.0,
|
|
color: Color::WHITE,
|
|
},
|
|
Default::default(),
|
|
),
|
|
..default()
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
/// This system toggles scale factor overrides when enter is pressed
|
|
fn toggle_override(input: Res<Input<KeyCode>>, mut windows: ResMut<Windows>) {
|
|
let window = windows.primary_mut();
|
|
if input.just_pressed(KeyCode::Return) {
|
|
window.set_scale_factor_override(window.scale_factor_override().xor(Some(1.)));
|
|
}
|
|
}
|
|
|
|
/// This system changes the scale factor override when up or down is pressed
|
|
fn change_scale_factor(input: Res<Input<KeyCode>>, mut windows: ResMut<Windows>) {
|
|
let window = windows.primary_mut();
|
|
if input.just_pressed(KeyCode::Up) {
|
|
window.set_scale_factor_override(window.scale_factor_override().map(|n| n + 1.));
|
|
} else if input.just_pressed(KeyCode::Down) {
|
|
window.set_scale_factor_override(window.scale_factor_override().map(|n| (n - 1.).max(1.)));
|
|
}
|
|
}
|