mirror of
https://github.com/bevyengine/bevy
synced 2024-11-21 20:23:28 +00:00
parent
1a92ec2638
commit
6b8b8e75e5
2 changed files with 164 additions and 0 deletions
|
@ -266,6 +266,10 @@ path = "examples/shader/shader_custom_material.rs"
|
|||
name = "shader_defs"
|
||||
path = "examples/shader/shader_defs.rs"
|
||||
|
||||
[[example]]
|
||||
name = "bevymark"
|
||||
path = "examples/tools/bevymark.rs"
|
||||
|
||||
[[example]]
|
||||
name = "button"
|
||||
path = "examples/ui/button.rs"
|
||||
|
|
160
examples/tools/bevymark.rs
Normal file
160
examples/tools/bevymark.rs
Normal file
|
@ -0,0 +1,160 @@
|
|||
use bevy::{
|
||||
diagnostic::{Diagnostics, FrameTimeDiagnosticsPlugin},
|
||||
prelude::*,
|
||||
};
|
||||
|
||||
const BIRDS_PER_SECOND: u32 = 1000;
|
||||
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,
|
||||
}
|
||||
|
||||
struct Bird {
|
||||
velocity: Vec3,
|
||||
}
|
||||
|
||||
struct BirdMaterial(Handle<ColorMaterial>);
|
||||
|
||||
impl FromResources for BirdMaterial {
|
||||
fn from_resources(resources: &Resources) -> Self {
|
||||
let mut color_materials = resources.get_mut::<Assets<ColorMaterial>>().unwrap();
|
||||
let asset_server = resources.get_mut::<AssetServer>().unwrap();
|
||||
BirdMaterial(color_materials.add(asset_server.load("branding/icon.png").into()))
|
||||
}
|
||||
}
|
||||
|
||||
fn main() {
|
||||
App::build()
|
||||
.add_resource(WindowDescriptor {
|
||||
title: "BevyMark".to_string(),
|
||||
width: 800,
|
||||
height: 600,
|
||||
vsync: true,
|
||||
resizable: false,
|
||||
..Default::default()
|
||||
})
|
||||
.add_plugins(DefaultPlugins)
|
||||
.add_plugin(FrameTimeDiagnosticsPlugin::default())
|
||||
.add_resource(BevyCounter { count: 0 })
|
||||
.init_resource::<BirdMaterial>()
|
||||
.add_startup_system(setup.system())
|
||||
.add_system(mouse_handler.system())
|
||||
.add_system(movement_system.system())
|
||||
.add_system(collision_system.system())
|
||||
.add_system(counter_system.system())
|
||||
.run();
|
||||
}
|
||||
|
||||
fn setup(commands: &mut Commands, asset_server: Res<AssetServer>) {
|
||||
commands
|
||||
.spawn(Camera2dComponents::default())
|
||||
.spawn(UiCameraComponents::default())
|
||||
.spawn(TextComponents {
|
||||
text: Text {
|
||||
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
|
||||
value: "Bird Count:".to_string(),
|
||||
style: TextStyle {
|
||||
color: Color::rgb(0.0, 1.0, 0.0),
|
||||
font_size: 40.0,
|
||||
..Default::default()
|
||||
},
|
||||
},
|
||||
style: Style {
|
||||
position_type: PositionType::Absolute,
|
||||
position: Rect {
|
||||
top: Val::Px(5.0),
|
||||
left: Val::Px(5.0),
|
||||
..Default::default()
|
||||
},
|
||||
..Default::default()
|
||||
},
|
||||
..Default::default()
|
||||
});
|
||||
}
|
||||
|
||||
fn mouse_handler(
|
||||
commands: &mut Commands,
|
||||
time: Res<Time>,
|
||||
mouse_button_input: Res<Input<MouseButton>>,
|
||||
window: Res<WindowDescriptor>,
|
||||
bird_material: Res<BirdMaterial>,
|
||||
mut counter: ResMut<BevyCounter>,
|
||||
) {
|
||||
if mouse_button_input.pressed(MouseButton::Left) {
|
||||
let spawn_count = (BIRDS_PER_SECOND as f32 * time.delta_seconds) as u128;
|
||||
let bird_x = (window.width as i32 / -2) as f32 + HALF_BIRD_SIZE;
|
||||
let bird_y = (window.height / 2) as f32 - HALF_BIRD_SIZE;
|
||||
|
||||
for count in 0..spawn_count {
|
||||
let bird_position = Vec3::new(bird_x, bird_y, (counter.count + count) as f32 * 0.00001);
|
||||
let mut transform = Transform::from_translation(bird_position);
|
||||
transform.scale = Vec3::new(BIRD_SCALE, BIRD_SCALE, BIRD_SCALE);
|
||||
|
||||
commands
|
||||
.spawn(SpriteComponents {
|
||||
material: bird_material.0.clone(),
|
||||
transform,
|
||||
draw: Draw {
|
||||
is_transparent: true,
|
||||
..Default::default()
|
||||
},
|
||||
..Default::default()
|
||||
})
|
||||
.with(Bird {
|
||||
velocity: Vec3::new(
|
||||
rand::random::<f32>() * MAX_VELOCITY - (MAX_VELOCITY * 0.5),
|
||||
0.,
|
||||
0.,
|
||||
),
|
||||
});
|
||||
}
|
||||
|
||||
counter.count += spawn_count;
|
||||
}
|
||||
}
|
||||
|
||||
fn movement_system(time: Res<Time>, mut bird_query: Query<(&mut Bird, &mut Transform)>) {
|
||||
for (mut bird, mut transform) in bird_query.iter_mut() {
|
||||
*transform.translation.x_mut() += bird.velocity.x() * time.delta_seconds;
|
||||
*transform.translation.y_mut() += bird.velocity.y() * time.delta_seconds;
|
||||
*bird.velocity.y_mut() += GRAVITY * time.delta_seconds;
|
||||
}
|
||||
}
|
||||
|
||||
fn collision_system(window: Res<WindowDescriptor>, mut bird_query: Query<(&mut Bird, &Transform)>) {
|
||||
let half_width = window.width as f32 * 0.5;
|
||||
let half_height = window.height as f32 * 0.5;
|
||||
|
||||
for (mut bird, transform) in bird_query.iter_mut() {
|
||||
let x_vel = bird.velocity.x();
|
||||
let y_vel = bird.velocity.y();
|
||||
let x_pos = transform.translation.x();
|
||||
let y_pos = transform.translation.y();
|
||||
|
||||
if (x_vel > 0. && x_pos + HALF_BIRD_SIZE > half_width)
|
||||
|| (x_vel <= 0. && x_pos - HALF_BIRD_SIZE < -(half_width))
|
||||
{
|
||||
bird.velocity.set_x(-x_vel);
|
||||
}
|
||||
if y_vel < 0. && y_pos - HALF_BIRD_SIZE < -half_height {
|
||||
bird.velocity.set_y(-y_vel);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn counter_system(
|
||||
diagnostics: Res<Diagnostics>,
|
||||
counter: Res<BevyCounter>,
|
||||
mut query: Query<&mut Text>,
|
||||
) {
|
||||
if let Some(fps) = diagnostics.get(FrameTimeDiagnosticsPlugin::FPS) {
|
||||
if let Some(average) = fps.average() {
|
||||
for mut text in query.iter_mut() {
|
||||
text.value = format!("Bird Count: {}\nAverage FPS: {:.2}", counter.count, average);
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
Loading…
Reference in a new issue