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many_buttons display-none commandline argument (#16905)

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# Objective

Add a benchmark that captures performance with a removed UI layout where
the root node is set to `Display::None`.

# Solution

Added a `display-none` commandline argument to the `many_buttons`
example. When used `display-none` sets the `display` field of the root
node to `Display::None`.

# Testing
```
cargo run --example many_buttons -- --display-none
```
Which displays nothing, as desired.
This commit is contained in:
ickshonpe 2024-12-19 19:58:15 +00:00 committed by GitHub
parent 05c6931279
commit 65835f5354
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1 changed files with 14 additions and 1 deletions
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15
examples/stress_tests/many_buttons.rs
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@ -46,6 +46,10 @@ struct Args {
/// at the start of each frame despawn any existing UI nodes and spawn a new UI tree /// at the start of each frame despawn any existing UI nodes and spawn a new UI tree
#[argh(switch)] #[argh(switch)]
respawn: bool, respawn: bool,
/// set the root node to display none, removing all nodes from the layout.
#[argh(switch)]
display_none: bool,
} }
/// This example shows what happens when there is a lot of buttons on screen. /// This example shows what happens when there is a lot of buttons on screen.
@ -153,6 +157,11 @@ fn setup_flex(mut commands: Commands, asset_server: Res<AssetServer>, args: Res<
let as_rainbow = |i: usize| Color::hsl((i as f32 / buttons_f) * 360.0, 0.9, 0.8); let as_rainbow = |i: usize| Color::hsl((i as f32 / buttons_f) * 360.0, 0.9, 0.8);
commands commands
.spawn(Node { .spawn(Node {
display: if args.display_none {
Display::None
} else {
Display::Flex
},
flex_direction: FlexDirection::Column, flex_direction: FlexDirection::Column,
justify_content: JustifyContent::Center, justify_content: JustifyContent::Center,
align_items: AlignItems::Center, align_items: AlignItems::Center,
@ -203,7 +212,11 @@ fn setup_grid(mut commands: Commands, asset_server: Res<AssetServer>, args: Res<
let as_rainbow = |i: usize| Color::hsl((i as f32 / buttons_f) * 360.0, 0.9, 0.8); let as_rainbow = |i: usize| Color::hsl((i as f32 / buttons_f) * 360.0, 0.9, 0.8);
commands commands
.spawn(Node { .spawn(Node {
display: Display::Grid, display: if args.display_none {
Display::None
} else {
Display::Grid
},
width: Val::Percent(100.), width: Val::Percent(100.),
height: Val::Percent(100.0), height: Val::Percent(100.0),
grid_template_columns: RepeatedGridTrack::flex(args.buttons as u16, 1.0), grid_template_columns: RepeatedGridTrack::flex(args.buttons as u16, 1.0),