tmp can't figure out plugin ordering

apps/networked_physics_demo/client/src/debug.rs

@@ -0,0 +1,21 @@
+//! Plugins for debugging
+
+use bevy::{
+	app::{App, Plugin},
+	diagnostic::{FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin},
+};
+use bevy_rapier3d::render::RapierDebugRenderPlugin;
+
+use crate::AppExt;
+
+#[derive(Debug, Default)]
+pub struct DebugPlugin;
+
+impl Plugin for DebugPlugin {
+	fn build(&self, app: &mut App) {
+		app.add_if_not_added(LogDiagnosticsPlugin::default())
+			.add_if_not_added(FrameTimeDiagnosticsPlugin)
+			.add_if_not_added(bevy_inspector_egui::quick::WorldInspectorPlugin::new())
+			.add_if_not_added(RapierDebugRenderPlugin::default());
+	}
+}

apps/networked_physics_demo/client/src/game.rs

@@ -0,0 +1,187 @@
+//! Main game logic
+
+use std::time::Duration;
+
+use bevy::app::Plugin;
+use bevy::ecs::schedule::OnEnter;
+use bevy::{
+	app::Update,
+	asset::{Assets, Handle},
+	core::Name,
+	core_pipeline::core_3d::Camera3dBundle,
+	ecs::{
+		component::Component,
+		event::{Event, EventReader, EventWriter},
+		system::{Commands, Local, Query, Res, ResMut},
+	},
+	math::{
+		primitives::{Cuboid, Plane3d},
+		Vec3,
+	},
+	pbr::{
+		light_consts, AmbientLight, DirectionalLight, DirectionalLightBundle,
+		PbrBundle, StandardMaterial,
+	},
+	prelude::default,
+	render::{
+		camera::{ClearColor, Exposure},
+		color::Color,
+		mesh::{Mesh, Meshable},
+	},
+	time::{Time, Timer, TimerMode},
+	transform::components::Transform,
+};
+use bevy_flycam::FlyCam;
+use bevy_rapier3d::{
+	dynamics::RigidBody,
+	geometry::Collider,
+	plugin::{NoUserData, RapierPhysicsPlugin},
+};
+use rand::Rng;
+
+use crate::rng::seed_rng;
+use crate::{AppExt, GameModeState};
+
+#[derive(Debug, Default)]
+pub struct GamePlugin;
+
+impl Plugin for GamePlugin {
+	fn build(&self, app: &mut bevy::prelude::App) {
+		app.add_if_not_added(bevy_flycam::NoCameraPlayerPlugin)
+			.add_if_not_added(RapierPhysicsPlugin::<NoUserData>::default())
+			.add_if_not_added(bevy_flycam::NoCameraPlayerPlugin)
+			.add_systems(OnEnter(GameModeState::InMinecraft), setup)
+			.add_systems(Update, handle_spawn_cube)
+			.add_systems(Update, spawn_cube_timer(Duration::from_millis(1000)))
+			.add_event::<SpawnCubeEvt>();
+	}
+}
+
+// set up a simple 3D scene
+fn setup(
+	mut commands: Commands,
+	mut meshes: ResMut<Assets<Mesh>>,
+	mut materials: ResMut<Assets<StandardMaterial>>,
+) {
+	commands.insert_resource(AmbientLight {
+		color: Color::WHITE,
+		brightness: 10000.0,
+	});
+	commands.insert_resource(ClearColor(Color::hex("D4F5F5").unwrap()));
+	// plane
+	let normal = Vec3::Y;
+	let collider =
+		Collider::halfspace(normal).expect("failed to create collider from mesh");
+	commands.spawn((
+		PbrBundle {
+			mesh: meshes.add(Plane3d::new(normal).mesh().size(50.0, 50.0).build()),
+			material: materials.add(StandardMaterial::from(Color::rgb(0.3, 0.5, 0.3))),
+			..default()
+		},
+		collider,
+	));
+	// sunlight
+	commands.spawn(DirectionalLightBundle {
+		directional_light: DirectionalLight {
+			illuminance: light_consts::lux::DIRECT_SUNLIGHT,
+			shadows_enabled: true,
+			..default()
+		},
+		transform: Transform::from_xyz(0.1, 1.0, 0.1).looking_at(Vec3::ZERO, Vec3::Y),
+		..default()
+	});
+	// camera
+	commands.spawn((
+		Camera3dBundle {
+			transform: Transform::from_xyz(10.0, 2.0, 10.0)
+				.looking_at(Vec3::ZERO, Vec3::Y),
+			exposure: Exposure::SUNLIGHT,
+			..default()
+		},
+		FlyCam,
+	));
+
+	// Cube Spawner
+	let cube_side_length = 1.0;
+	let mesh = Mesh::from(Cuboid::from_size(Vec3::splat(cube_side_length)));
+	let material = materials.add(StandardMaterial::from(Color::WHITE));
+	let collider = Collider::cuboid(
+		cube_side_length / 2.,
+		cube_side_length / 2.,
+		cube_side_length / 2.,
+	);
+	let mesh = meshes.add(mesh);
+	commands.spawn((
+		CubeSpawner {
+			mesh,
+			material,
+			collider,
+		},
+		Transform::from_xyz(0.0, 10.0, 0.0),
+	));
+}
+
+#[derive(Debug, Component)]
+pub struct CubeSpawner {
+	mesh: Handle<Mesh>,
+	material: Handle<StandardMaterial>,
+	collider: Collider,
+}
+
+#[derive(Event, Default)]
+struct SpawnCubeEvt {
+	name: Option<String>,
+}
+
+seed_rng!(SpawnCubeRng, Ajdckcfupajckvioqweimvidfguaskl);
+
+/// Listens to `SpawnCubeEvt` and spawns a cube at all `CubeSpawner`s.
+fn handle_spawn_cube(
+	mut rng: Local<SpawnCubeRng>,
+	mut cube_num: Local<u64>,
+	mut commands: Commands,
+	spawner: Query<(&CubeSpawner, &Transform)>,
+	mut spawn_cube_evr: EventReader<SpawnCubeEvt>,
+) {
+	let mut spawn_cube =
+		|spawn_cube_evt: &SpawnCubeEvt, spawner: &CubeSpawner, spawn_at| {
+			let r = -1.0..=1.0;
+			let dx = rng.gen_range(r.clone());
+			let dy = rng.gen_range(r.clone());
+			let dz = rng.gen_range(r.clone());
+			let rand_offset = Transform::from_xyz(dx, dy, dz);
+			let mut cube_entity = commands.spawn((
+				PbrBundle {
+					mesh: spawner.mesh.clone(),
+					material: spawner.material.clone(),
+					transform: spawn_at * rand_offset,
+					..default()
+				},
+				RigidBody::Dynamic,
+				spawner.collider.clone(),
+			));
+			if let Some(name) = &spawn_cube_evt.name {
+				cube_entity.insert(Name::new(name.clone()));
+			} else {
+				cube_entity.insert(Name::new(format!("Cube {}", *cube_num)));
+			}
+			*cube_num += 1;
+		};
+	for spawn_cube_evt in spawn_cube_evr.read() {
+		for (sp, trans) in spawner.iter() {
+			spawn_cube(spawn_cube_evt, sp, *trans)
+		}
+	}
+}
+
+/// Sends `SpawnCubeEvt` on a timer.
+fn spawn_cube_timer(
+	timer_duration: Duration,
+) -> impl FnMut(Res<Time>, EventWriter<SpawnCubeEvt>) {
+	let mut timer = Timer::new(timer_duration, TimerMode::Repeating);
+	move |time, mut spawn_cube_evw| {
+		if timer.tick(time.delta()).finished() {
+			spawn_cube_evw.send_default();
+		}
+	}
+}