feat(profiler): Re-add puffin profiler (F10) (#908)

Re add puffin profiler. Haven't added any new scopes / fleshed anything
out, but got it handy at least for now.

Cargo.toml

@@ -20,7 +20,8 @@ bones_bevy_renderer = { git = "https://github.com/fishfolk/bones" }
 bevy_tasks          = "0.11"
 turborand           = { version = "0.10.0", features = ["atomic"] }
 tracing             = "0.1.37"
-puffin              = "0.16.0"
+puffin              = "0.17.0"
+puffin_egui         = "0.23.0"
 petgraph            = "0.6.4"
 rapier2d            = { version = "0.17.2", features = ["debug-render", "enhanced-determinism"] }
 indexmap            = "2.0.0"

src/main.rs

@@ -17,6 +17,7 @@ pub mod core;
 pub mod debug;
 pub mod fullscreen;
 pub mod input;
+pub mod profiler;
 pub mod sessions;
 pub mod settings;
 pub mod ui;
@@ -126,6 +127,7 @@ fn main() {
         .install_plugin(input::game_plugin)
         .install_plugin(core::game_plugin)
         .install_plugin(debug::game_plugin)
+        .install_plugin(profiler::game_plugin)
         // We initialize the asset server and register asset types
         .init_shared_resource::<AssetServer>()
         .register_default_assets();

src/profiler.rs

@@ -0,0 +1,54 @@
+//! Game plugin for performance profiling tools.
+
+use crate::prelude::*;
+
+/// Installs profiler ui plugins
+pub fn game_plugin(game: &mut Game) {
+    game.systems.add_before_system(mark_new_frame);
+    game.sessions
+        .create(SessionNames::PROFILER)
+        .install_plugin(session_plugin);
+}
+
+/// Install the profiler UI to profiler session.
+fn session_plugin(session: &mut Session) {
+    session
+        .stages
+        .add_system_to_stage(CoreStage::First, profiler);
+}
+
+#[derive(HasSchema, Clone, Debug, Default)]
+struct ProfilerState {
+    pub show_window: bool,
+}
+
+fn profiler(
+    ctx: ResMut<EguiCtx>,
+    localization: Localization<GameMeta>,
+    mut state: ResMutInit<ProfilerState>,
+    keyboard_inputs: Res<KeyboardInputs>,
+) {
+    puffin::set_scopes_on(true);
+
+    let toggle_window = keyboard_inputs
+        .key_events
+        .iter()
+        .any(|x| x.key_code.option() == Some(KeyCode::F10) && !x.button_state.pressed());
+
+    let show_window = &mut state.show_window;
+    if toggle_window {
+        *show_window = !*show_window;
+    }
+
+    egui::Window::new(localization.get("profiler"))
+        .id(egui::Id::new("profiler"))
+        .open(show_window)
+        .show(&ctx, |ui| {
+            puffin_egui::profiler_ui(ui);
+        });
+}
+
+/// Notify profilers we are at frame boundary
+pub fn mark_new_frame(_game: &mut Game) {
+    puffin::GlobalProfiler::lock().new_frame();
+}

src/sessions.rs

@@ -7,6 +7,7 @@ impl SessionNames {
     pub const GAME: &'static str = "game";
     pub const MAIN_MENU: &'static str = "main_menu";
     pub const PAUSE_MENU: &'static str = "pause_menu";
+    pub const PROFILER: &'static str = "profiler";
 }
 
 pub trait SessionExt {