bevy/examples/dev_tools/fps_overlay.rs
spvky 40007cdb2e
Adds update interval config for FpsOverlayPlugin (#17489)
# Objective
Fixes #17487 

- Adds a new field `refresh_interval` to `FpsOverlayConfig` to allow the
user setting a minimum time before each refresh of the FPS display

## Solution

- Add `refresh_interval` to `FpsOverlayConfig`
- When updating the on screen text, check a duration of
`refresh_interval` has passed, if not, don't update the FPS counter

## Testing

- Created a new bevy project
- Included the `FpsOverlayPlugin` with the default `refresh_interval`
(100 ms)
- Included the `FpsOverlayPlugin` with an obnoxious `refresh_interval`
(2 seconds)
---

---------

Co-authored-by: Benjamin Brienen <benjamin.brienen@outlook.com>
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
2025-01-24 05:57:36 +00:00

85 lines
2.6 KiB
Rust

//! Showcase how to use and configure FPS overlay.
use bevy::{
dev_tools::fps_overlay::{FpsOverlayConfig, FpsOverlayPlugin},
prelude::*,
text::FontSmoothing,
};
struct OverlayColor;
impl OverlayColor {
const RED: Color = Color::srgb(1.0, 0.0, 0.0);
const GREEN: Color = Color::srgb(0.0, 1.0, 0.0);
}
fn main() {
App::new()
.add_plugins((
DefaultPlugins,
FpsOverlayPlugin {
config: FpsOverlayConfig {
text_config: TextFont {
// Here we define size of our overlay
font_size: 42.0,
// If we want, we can use a custom font
font: default(),
// We could also disable font smoothing,
font_smoothing: FontSmoothing::default(),
..default()
},
// We can also change color of the overlay
text_color: OverlayColor::GREEN,
// We can also set the refresh interval for the FPS counter
refresh_interval: core::time::Duration::from_millis(100),
enabled: true,
},
},
))
.add_systems(Startup, setup)
.add_systems(Update, customize_config)
.run();
}
fn setup(mut commands: Commands) {
// We need to spawn a camera (2d or 3d) to see the overlay
commands.spawn(Camera2d);
// Instruction text
commands.spawn((
Text::new(concat!(
"Press 1 to toggle the overlay color.\n",
"Press 2 to decrease the overlay size.\n",
"Press 3 to increase the overlay size.\n",
"Press 4 to toggle the overlay visibility."
)),
Node {
position_type: PositionType::Absolute,
bottom: Val::Px(12.),
left: Val::Px(12.),
..default()
},
));
}
fn customize_config(input: Res<ButtonInput<KeyCode>>, mut overlay: ResMut<FpsOverlayConfig>) {
if input.just_pressed(KeyCode::Digit1) {
// Changing resource will affect overlay
if overlay.text_color == OverlayColor::GREEN {
overlay.text_color = OverlayColor::RED;
} else {
overlay.text_color = OverlayColor::GREEN;
}
}
if input.just_pressed(KeyCode::Digit2) {
overlay.text_config.font_size -= 2.0;
}
if input.just_pressed(KeyCode::Digit3) {
overlay.text_config.font_size += 2.0;
}
if input.just_pressed(KeyCode::Digit4) {
overlay.enabled = !overlay.enabled;
}
}