7482a0d26d
Fixes #15834 ## Migration Guide The APIs of `Time`, `Timer` and `Stopwatch` have been cleaned up for consistency with each other and the standard library's `Duration` type. The following methods have been renamed: - `Stowatch::paused` -> `Stopwatch::is_paused` - `Time::elapsed_seconds` -> `Time::elasped_secs` (including `_f64` and `_wrapped` variants)
46 lines
1.6 KiB
Rust
46 lines
1.6 KiB
Rust
use crate::{Diagnostic, DiagnosticPath, Diagnostics, RegisterDiagnostic};
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use bevy_app::prelude::*;
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use bevy_core::FrameCount;
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use bevy_ecs::prelude::*;
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use bevy_time::{Real, Time};
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/// Adds "frame time" diagnostic to an App, specifically "frame time", "fps" and "frame count"
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///
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/// # See also
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///
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/// [`LogDiagnosticsPlugin`](crate::LogDiagnosticsPlugin) to output diagnostics to the console.
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#[derive(Default)]
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pub struct FrameTimeDiagnosticsPlugin;
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impl Plugin for FrameTimeDiagnosticsPlugin {
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fn build(&self, app: &mut App) {
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app.register_diagnostic(Diagnostic::new(Self::FRAME_TIME).with_suffix("ms"))
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.register_diagnostic(Diagnostic::new(Self::FPS))
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.register_diagnostic(Diagnostic::new(Self::FRAME_COUNT).with_smoothing_factor(0.0))
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.add_systems(Update, Self::diagnostic_system);
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}
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}
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impl FrameTimeDiagnosticsPlugin {
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pub const FPS: DiagnosticPath = DiagnosticPath::const_new("fps");
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pub const FRAME_COUNT: DiagnosticPath = DiagnosticPath::const_new("frame_count");
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pub const FRAME_TIME: DiagnosticPath = DiagnosticPath::const_new("frame_time");
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pub fn diagnostic_system(
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mut diagnostics: Diagnostics,
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time: Res<Time<Real>>,
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frame_count: Res<FrameCount>,
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) {
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diagnostics.add_measurement(&Self::FRAME_COUNT, || frame_count.0 as f64);
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let delta_seconds = time.delta_secs_f64();
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if delta_seconds == 0.0 {
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return;
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}
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diagnostics.add_measurement(&Self::FRAME_TIME, || delta_seconds * 1000.0);
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diagnostics.add_measurement(&Self::FPS, || 1.0 / delta_seconds);
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}
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}
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