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Slight perf improvements and tidy for bevymark (#3765)
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Co-authored-by: Carter Anderson <mcanders1@gmail.com>
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@SUPERCILEX @cart
SUPERCILEX and cart committed Feb 28, 2022
1 parent 557ab98 commit 461cf53
Showing 1 changed file with 74 additions and 59 deletions.
133 changes: 74 additions & 59 deletions examples/tools/bevymark.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,17 +4,16 @@ use bevy::{
prelude::*,
window::PresentMode,
};
use rand::random;
use rand::{thread_rng, Rng};

const BIRDS_PER_SECOND: u32 = 10000;
const _BASE_COLOR: Color = Color::rgb(5.0, 5.0, 5.0);
const GRAVITY: f32 = -9.8 * 100.0;
const MAX_VELOCITY: f32 = 750.;
const BIRD_SCALE: f32 = 0.15;
const HALF_BIRD_SIZE: f32 = 256. * BIRD_SCALE * 0.5;

struct BevyCounter {
pub count: u128,
pub count: usize,
pub color: Color,
}

Expand All @@ -23,13 +22,16 @@ struct Bird {
velocity: Vec3,
}

/// This example provides a 2D benchmark.
///
/// Usage: spawn more entities by clicking on the screen.
fn main() {
App::new()
.insert_resource(WindowDescriptor {
title: "BevyMark".to_string(),
width: 800.,
height: 600.,
present_mode: PresentMode::Mailbox,
present_mode: PresentMode::Immediate,
resizable: true,
..Default::default()
})
Expand All @@ -54,8 +56,8 @@ fn main() {
}

struct BirdScheduled {
wave: u128,
per_wave: u128,
wave: usize,
per_wave: usize,
}

fn scheduled_spawner(
Expand All @@ -73,77 +75,84 @@ fn scheduled_spawner(
scheduled.per_wave,
bird_texture.0.clone_weak(),
);
counter.color = Color::rgb_linear(random(), random(), random());

let mut rng = thread_rng();
counter.color = Color::rgb_linear(rng.gen(), rng.gen(), rng.gen());
scheduled.wave -= 1;
}
}

struct BirdTexture(Handle<Image>);

#[derive(Component)]
struct StatsText;

fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
let texture = asset_server.load("branding/icon.png");

commands.spawn_bundle(OrthographicCameraBundle::new_2d());
commands.spawn_bundle(UiCameraBundle::default());
commands.spawn_bundle(TextBundle {
text: Text {
sections: vec![
TextSection {
value: "Bird Count: ".to_string(),
style: TextStyle {
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
font_size: 40.0,
color: Color::rgb(0.0, 1.0, 0.0),
commands
.spawn_bundle(TextBundle {
text: Text {
sections: vec![
TextSection {
value: "Bird Count: ".to_string(),
style: TextStyle {
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
font_size: 40.0,
color: Color::rgb(0.0, 1.0, 0.0),
},
},
},
TextSection {
value: "".to_string(),
style: TextStyle {
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
font_size: 40.0,
color: Color::rgb(0.0, 1.0, 1.0),
TextSection {
value: "".to_string(),
style: TextStyle {
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
font_size: 40.0,
color: Color::rgb(0.0, 1.0, 1.0),
},
},
},
TextSection {
value: "\nAverage FPS: ".to_string(),
style: TextStyle {
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
font_size: 40.0,
color: Color::rgb(0.0, 1.0, 0.0),
TextSection {
value: "\nAverage FPS: ".to_string(),
style: TextStyle {
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
font_size: 40.0,
color: Color::rgb(0.0, 1.0, 0.0),
},
},
},
TextSection {
value: "".to_string(),
style: TextStyle {
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
font_size: 40.0,
color: Color::rgb(0.0, 1.0, 1.0),
TextSection {
value: "".to_string(),
style: TextStyle {
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
font_size: 40.0,
color: Color::rgb(0.0, 1.0, 1.0),
},
},
],
..Default::default()
},
style: Style {
position_type: PositionType::Absolute,
position: Rect {
top: Val::Px(5.0),
left: Val::Px(5.0),
..Default::default()
},
],
..Default::default()
},
style: Style {
position_type: PositionType::Absolute,
position: Rect {
top: Val::Px(5.0),
left: Val::Px(5.0),
..Default::default()
},
..Default::default()
},
..Default::default()
});
})
.insert(StatsText);

commands.insert_resource(BirdTexture(texture));
commands.insert_resource(BirdScheduled {
per_wave: std::env::args()
.nth(1)
.and_then(|arg| arg.parse::<u128>().ok())
.and_then(|arg| arg.parse::<usize>().ok())
.unwrap_or_default(),
wave: std::env::args()
.nth(2)
.and_then(|arg| arg.parse::<u128>().ok())
.and_then(|arg| arg.parse::<usize>().ok())
.unwrap_or(1),
});
}
Expand All @@ -157,11 +166,12 @@ fn mouse_handler(
mut counter: ResMut<BevyCounter>,
) {
if mouse_button_input.just_released(MouseButton::Left) {
counter.color = Color::rgb_linear(random(), random(), random());
let mut rng = thread_rng();
counter.color = Color::rgb_linear(rng.gen(), rng.gen(), rng.gen());
}

if mouse_button_input.pressed(MouseButton::Left) {
let spawn_count = (BIRDS_PER_SECOND as f64 * time.delta_seconds_f64()) as u128;
let spawn_count = (BIRDS_PER_SECOND as f64 * time.delta_seconds_f64()) as usize;
spawn_birds(
&mut commands,
&windows,
Expand All @@ -176,12 +186,14 @@ fn spawn_birds(
commands: &mut Commands,
windows: &Windows,
counter: &mut BevyCounter,
spawn_count: u128,
spawn_count: usize,
texture: Handle<Image>,
) {
let window = windows.get_primary().unwrap();
let bird_x = (window.width() as f32 / -2.) + HALF_BIRD_SIZE;
let bird_y = (window.height() as f32 / 2.) - HALF_BIRD_SIZE;
let mut rng = thread_rng();

for count in 0..spawn_count {
let bird_z = (counter.count + count) as f32 * 0.00001;
commands
Expand All @@ -200,7 +212,7 @@ fn spawn_birds(
})
.insert(Bird {
velocity: Vec3::new(
rand::random::<f32>() * MAX_VELOCITY - (MAX_VELOCITY * 0.5),
rng.gen::<f32>() * MAX_VELOCITY - (MAX_VELOCITY * 0.5),
0.,
0.,
),
Expand Down Expand Up @@ -245,14 +257,17 @@ fn collision_system(windows: Res<Windows>, mut bird_query: Query<(&mut Bird, &Tr
fn counter_system(
diagnostics: Res<Diagnostics>,
counter: Res<BevyCounter>,
mut query: Query<&mut Text>,
mut query: Query<&mut Text, With<StatsText>>,
) {
let mut text = query.single_mut();

if counter.is_changed() {
text.sections[1].value = format!("{}", counter.count);
}

if let Some(fps) = diagnostics.get(FrameTimeDiagnosticsPlugin::FPS) {
if let Some(average) = fps.average() {
for mut text in query.iter_mut() {
text.sections[1].value = format!("{}", counter.count);
text.sections[3].value = format!("{:.2}", average);
}
text.sections[3].value = format!("{:.2}", average);
}
};
}

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