2020-05-04 20:21:14 +00:00
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use crate::{Diagnostic, DiagnosticId, Diagnostics};
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2020-07-17 01:47:51 +00:00
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use bevy_app::prelude::*;
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2021-07-27 23:42:36 +00:00
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use bevy_ecs::system::{Res, ResMut};
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2022-05-26 00:27:18 +00:00
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use bevy_time::Time;
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2020-05-04 20:21:14 +00:00
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2020-10-14 22:13:43 +00:00
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/// Adds "frame time" diagnostic to an App, specifically "frame time", "fps" and "frame count"
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2020-05-04 20:21:14 +00:00
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#[derive(Default)]
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pub struct FrameTimeDiagnosticsPlugin;
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2020-10-14 22:13:43 +00:00
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pub struct FrameTimeDiagnosticsState {
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2022-05-17 04:01:54 +00:00
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frame_count: u64,
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2020-10-14 22:13:43 +00:00
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}
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2020-08-08 03:22:17 +00:00
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impl Plugin for FrameTimeDiagnosticsPlugin {
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2021-07-27 20:21:06 +00:00
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fn build(&self, app: &mut bevy_app::App) {
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2021-07-27 23:42:36 +00:00
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app.add_startup_system(Self::setup_system)
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2022-05-17 04:01:54 +00:00
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.insert_resource(FrameTimeDiagnosticsState { frame_count: 0 })
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2021-07-27 23:42:36 +00:00
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.add_system(Self::diagnostic_system);
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2020-05-04 20:21:14 +00:00
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}
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}
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impl FrameTimeDiagnosticsPlugin {
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pub const FPS: DiagnosticId = DiagnosticId::from_u128(288146834822086093791974408528866909483);
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2020-10-14 22:13:43 +00:00
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pub const FRAME_COUNT: DiagnosticId =
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DiagnosticId::from_u128(54021991829115352065418785002088010277);
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2020-05-04 20:21:14 +00:00
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pub const FRAME_TIME: DiagnosticId =
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2020-10-14 22:13:43 +00:00
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DiagnosticId::from_u128(73441630925388532774622109383099159699);
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2020-05-04 20:21:14 +00:00
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2020-05-14 00:52:47 +00:00
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pub fn setup_system(mut diagnostics: ResMut<Diagnostics>) {
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2022-08-04 22:27:14 +00:00
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diagnostics.add(Diagnostic::new(Self::FRAME_TIME, "frame_time", 20).with_suffix("ms"));
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2020-05-18 21:53:57 +00:00
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diagnostics.add(Diagnostic::new(Self::FPS, "fps", 20));
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2020-10-14 22:13:43 +00:00
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diagnostics.add(Diagnostic::new(Self::FRAME_COUNT, "frame_count", 1));
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2020-05-04 20:21:14 +00:00
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}
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2020-10-14 22:13:43 +00:00
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pub fn diagnostic_system(
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mut diagnostics: ResMut<Diagnostics>,
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time: Res<Time>,
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mut state: ResMut<FrameTimeDiagnosticsState>,
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) {
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2022-06-20 17:02:25 +00:00
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diagnostics.add_measurement(Self::FRAME_COUNT, || {
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state.frame_count = state.frame_count.wrapping_add(1);
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state.frame_count as f64
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});
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2020-10-14 22:13:43 +00:00
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2020-11-28 21:08:31 +00:00
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if time.delta_seconds_f64() == 0.0 {
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2020-05-04 20:21:14 +00:00
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return;
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}
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2022-08-04 22:27:14 +00:00
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diagnostics.add_measurement(Self::FRAME_TIME, || time.delta_seconds_f64() * 1000.);
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2022-06-20 17:02:25 +00:00
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diagnostics.add_measurement(Self::FPS, || 1.0 / time.delta_seconds_f64());
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}
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}
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impl FrameTimeDiagnosticsState {
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pub fn reset_frame_count(&mut self) {
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self.frame_count = 0;
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2020-05-04 20:21:14 +00:00
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}
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}
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