FPS Counter Example - Bevy Typing CST Test

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FPS Counter Example — Bevy Code

Displays FPS on screen using Bevy UI.

use bevy::prelude::*;

fn main() {
	App::build()
		.add_plugins(DefaultPlugins)
		.add_startup_system(setup.system())
		.add_system(update_fps.system())
		.run();
}

struct FpsText;

fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
	commands.spawn_bundle(UiCameraBundle::default());
	commands.spawn_bundle(TextBundle {
		text: Text::with_section(
		"FPS: 0",
		TextStyle {
		font: asset_server.load("fonts/FiraSans-Bold.ttf"),
		font_size: 30.0,
		color: Color::WHITE,
		},
		Default::default(),
		),
		..Default::default()
	}).insert(FpsText);
}

fn update_fps(time: Res<Time>, mut query: Query<&mut Text, With<FpsText>>) {
	for mut text in query.iter_mut() {
		text.sections[0].value = format!("FPS: {}", (1.0 / time.delta_seconds()) as i32);
	}
}

Bevy Language Guide

Bevy is a modern, open-source Rust game engine designed for high-performance 2D and 3D games, with a focus on ECS architecture, modularity, and cross-platform support for desktop and web.

Primary Use Cases

▸Cross-platform 2D and 3D games
▸Rust-native game projects
▸Educational games and simulations
▸Prototypes and experimental game engines
▸WebAssembly and desktop deployment

Notable Features

▸Rust-based ECS (Entity Component System)
▸Modular plugin architecture
▸wgpu renderer for 2D/3D
▸Bevy UI toolkit
▸Asset management and hot-reloading

Origin & Creator

Bevy was created by Carter Anderson and maintained by an open-source community, emphasizing Rust-native ECS and performance-focused game development.

Industrial Note

Bevy is gaining traction in Rust-native game development, educational games, indie 2D/3D games, simulations, and hobby projects where performance and safety are priorities.

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FPS Counter Example — Bevy Code

Displays FPS on screen using Bevy UI.

use bevy::prelude::*; fn main() { App::build() .add_plugins(DefaultPlugins) .add_startup_system(setup.system()) .add_system(update_fps.system()) .run(); } struct FpsText; fn setup(mut commands: Commands, asset_server: Res<AssetServer>) { commands.spawn_bundle(UiCameraBundle::default()); commands.spawn_bundle(TextBundle { text: Text::with_section( "FPS: 0", TextStyle { font: asset_server.load("fonts/FiraSans-Bold.ttf"), font_size: 30.0, color: Color::WHITE, }, Default::default(), ), ..Default::default() }).insert(FpsText); } fn update_fps(time: Res<Time>, mut query: Query<&mut Text, With<FpsText>>) { for mut text in query.iter_mut() { text.sections[0].value = format!("FPS: {}", (1.0 / time.delta_seconds()) as i32); } }

Bevy Language Guide

Bevy is a modern, open-source Rust game engine designed for high-performance 2D and 3D games, with a focus on ECS architecture, modularity, and cross-platform support for desktop and web.

Primary Use Cases

▸Cross-platform 2D and 3D games
▸Rust-native game projects
▸Educational games and simulations
▸Prototypes and experimental game engines
▸WebAssembly and desktop deployment

Notable Features

▸Rust-based ECS (Entity Component System)
▸Modular plugin architecture
▸wgpu renderer for 2D/3D
▸Bevy UI toolkit
▸Asset management and hot-reloading

Origin & Creator

Bevy was created by Carter Anderson and maintained by an open-source community, emphasizing Rust-native ECS and performance-focused game development.

Industrial Note

Bevy is gaining traction in Rust-native game development, educational games, indie 2D/3D games, simulations, and hobby projects where performance and safety are priorities.