0.15.1, fps

src/main.rs

@@ -10,6 +10,8 @@ mod tile;
 mod tilemap;
 mod tiles;
 
+use bevy::diagnostic::FrameTimeDiagnosticsPlugin;
+
 fn main() {
     App::new()
         .insert_resource(game::ZIndex(0.0))
@@ -24,6 +26,7 @@ fn main() {
                 })
                 .set(ImagePlugin::default_nearest()),
         )
+        .add_plugins(FrameTimeDiagnosticsPlugin::default()) // Add the FrameTimeDiagnosticsPlugin here
         .insert_resource(ClearColor(Color::srgb(0.0, 0.0, 0.0)))
         .add_plugins(tilemap::TilemapPlugin)
         .add_systems(
@@ -50,7 +53,19 @@ fn main() {
                 tile::camera_z_movement,
                 tile::update_tile_visibility
                     .run_if(|camera_moved: Res<tile::CameraMoved>| camera_moved.0),
+                log_fps_system,
             ),
         )
         .run();
 }
+
+use bevy::diagnostic::DiagnosticsStore;
+
+fn log_fps_system(diagnostics: Res<DiagnosticsStore>) {
+    if let Some(fps) = diagnostics
+        .get(&FrameTimeDiagnosticsPlugin::FPS)
+        .and_then(|fps_diagnostic| fps_diagnostic.average())
+    {
+        println!("Average FPS: {:.2}", fps);
+    }
+}