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added frame count to FrameTimeDiagnosticsPlugin #678

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merged 5 commits into from
Oct 14, 2020
Merged

added frame count to FrameTimeDiagnosticsPlugin #678

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3f6968c
added frame count to FrameTimeDiagnosticsPlugin
Olaren15 Oct 14, 2020
9336292
fixed format from last commit
Olaren15 Oct 14, 2020
8eb36cd
fixed newline character
Olaren15 Oct 14, 2020
92e87a3
use more random UUID
Olaren15 Oct 14, 2020
267caa0
fixed frame count measurement location
Olaren15 Oct 14, 2020
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21 changes: 18 additions & 3 deletions crates/bevy_diagnostic/src/frame_time_diagnostics_plugin.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -3,32 +3,47 @@ use bevy_app::prelude::*;
use bevy_core::Time;
use bevy_ecs::{IntoQuerySystem, Res, ResMut};

/// Adds "frame time" diagnostic to an App, specifically "frame time" and "fps"
/// Adds "frame time" diagnostic to an App, specifically "frame time", "fps" and "frame count"
#[derive(Default)]
pub struct FrameTimeDiagnosticsPlugin;

pub struct FrameTimeDiagnosticsState {
frame_count: f64,
}

impl Plugin for FrameTimeDiagnosticsPlugin {
fn build(&self, app: &mut bevy_app::AppBuilder) {
app.add_startup_system(Self::setup_system.system())
.add_resource(FrameTimeDiagnosticsState { frame_count: 0.0 })
.add_system(Self::diagnostic_system.system());
}
}

impl FrameTimeDiagnosticsPlugin {
pub const FPS: DiagnosticId = DiagnosticId::from_u128(288146834822086093791974408528866909483);
pub const FRAME_COUNT: DiagnosticId =
DiagnosticId::from_u128(54021991829115352065418785002088010277);
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i think id prefer a fully-random uuid just so these are more distinguishable when printed. I generated one for you :)

73441630925388532774622109383099159699

pub const FRAME_TIME: DiagnosticId =
DiagnosticId::from_u128(54021991829115352065418785002088010276);
DiagnosticId::from_u128(73441630925388532774622109383099159699);

pub fn setup_system(mut diagnostics: ResMut<Diagnostics>) {
diagnostics.add(Diagnostic::new(Self::FRAME_TIME, "frame_time", 20));
diagnostics.add(Diagnostic::new(Self::FPS, "fps", 20));
diagnostics.add(Diagnostic::new(Self::FRAME_COUNT, "frame_count", 1));
}

pub fn diagnostic_system(mut diagnostics: ResMut<Diagnostics>, time: Res<Time>) {
pub fn diagnostic_system(
mut diagnostics: ResMut<Diagnostics>,
time: Res<Time>,
mut state: ResMut<FrameTimeDiagnosticsState>,
) {
if time.delta_seconds_f64 == 0.0 {
return;
}

state.frame_count += 1.0;
diagnostics.add_measurement(Self::FRAME_COUNT, state.frame_count);
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i think we should probably move this above the time.delta_seconds_f64 == 0.0 check. A frame still happens even if the delta time is 0.


diagnostics.add_measurement(Self::FRAME_TIME, time.delta_seconds_f64);
if let Some(fps) = diagnostics
.get(Self::FRAME_TIME)
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