Make world generation asynchronous; Update dependencies (Bevy 0.9, ayyy)

.gitignore

@@ -1 +1,2 @@
 /target
+.fleet/run.json

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "worlds-history-sim-rs"
-version = "0.2.1"
+version = "0.3.0"
 edition = "2021"
 resolver = "2"
 
@@ -35,7 +35,7 @@ path = "planet"
 default-features = false
 
 [dependencies.bevy]
-version = "0.8.1"
+version = "0.9.0"
 default-features = false
 
 [dependencies.fxhash]
@@ -43,7 +43,7 @@ version = "0.2.1"
 optional = true
 
 [dependencies.bevy_egui]
-version = "0.16.1"
+version = "0.17"
 optional = true
 default-features = false
 features = ["manage_clipboard"]
@@ -51,3 +51,7 @@ features = ["manage_clipboard"]
 [dependencies.tinyfiledialogs]
 version = "3.9.1"
 optional = true
+
+[dependencies.futures-lite]
+version = "1.12.0"
+default-features = false

planet/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "planet"
-version = "0.2.1"
+version = "0.3.0"
 edition = "2021"
 
 [profile]
@@ -15,7 +15,7 @@ default = ["logging", "render"]
 version = "0.8.5"
 
 [dependencies.bevy]
-version = "0.8"
+version = "0.9.0"
 default-features = false
 
 [dependencies.serde]
@@ -24,4 +24,4 @@ default-features = false
 features = ["derive"]
 
 [dependencies.ron]
-version = "0.7.1"
+version = "0.8.0"

planet/src/world.rs

@@ -1,4 +1,3 @@
-// TODO: Logging doesn't seem to work here? Figure out why and fix
 use {
     crate::{
         math_util::{
@@ -149,6 +148,27 @@ impl World {
         }
     }
 
+    pub fn async_new(width: u32, height: u32, seed: u32) -> World {
+        World {
+            width,
+            height,
+            seed,
+            terrain: vec![
+                vec![TerrainCell::default(); width.try_into().unwrap()];
+                height.try_into().unwrap()
+            ],
+            continent_offsets: [default(); World::NUM_CONTINENTS as usize],
+            continent_sizes: [default(); World::NUM_CONTINENTS as usize],
+            max_altitude: World::MIN_ALTITUDE,
+            min_altitude: World::MAX_ALTITUDE,
+            max_rainfall: World::MIN_RAINFALL,
+            min_rainfall: World::MAX_RAINFALL,
+            max_temperature: World::MIN_TEMPERATURE,
+            min_temperature: World::MAX_TEMPERATURE,
+            rng: StdRng::seed_from_u64(seed as u64),
+        }
+    }
+
     pub fn generate(&mut self) -> Result<(), WorldGenError> {
         if let Err(err) = self.generate_altitude() {
             return Err(WorldGenError::CartesianError(err));

planet/src/world_manager.rs

@@ -1,6 +1,11 @@
 use {
     crate::{World, WorldGenError},
-    bevy::{log::warn, utils::default},
+    bevy::{
+        log::warn,
+        prelude::Resource,
+        tasks::{AsyncComputeTaskPool, Task},
+        utils::default,
+    },
     rand::random,
     std::{
         error::Error,
@@ -14,7 +19,7 @@ use {
 #[derive(Debug)]
 pub enum LoadError {
     MissingSave(io::Error),
-    InvalidSave(ron::Error),
+    InvalidSave(ron::error::SpannedError),
 }
 impl Error for LoadError {
     fn source(&self) -> Option<&(dyn Error + 'static)> {
@@ -74,12 +79,15 @@ impl Display for SaveError {
     }
 }
 
-#[derive(Debug, Default)]
+#[derive(Debug, Default, Resource)]
 pub struct WorldManager {
     world: Option<World>,
 }
 
 impl WorldManager {
+    const NEW_WORLD_HEIGHT: u32 = 200;
+    const NEW_WORLD_WIDTH: u32 = 400;
+
     #[must_use]
     pub fn new() -> WorldManager {
         default()
@@ -160,11 +168,34 @@ impl WorldManager {
         self.get_world().unwrap()
     }
 
+    pub fn set_world(&mut self, world: World) {
+        self.world = Some(world);
+    }
+
     pub fn new_world(&mut self, seed: Option<u32>) -> Result<&World, WorldGenError> {
         let seed = seed.unwrap_or_else(random);
-        let mut new_world = World::new(400, 200, seed);
+        let mut new_world = World::new(
+            WorldManager::NEW_WORLD_WIDTH,
+            WorldManager::NEW_WORLD_HEIGHT,
+            seed,
+        );
         new_world.generate()?;
         self.world = Some(new_world);
         Ok(self.get_world().unwrap())
     }
+
+    pub fn new_world_async(&mut self, seed: Option<u32>) -> Task<Result<World, WorldGenError>> {
+        AsyncComputeTaskPool::get().spawn(async move {
+            let seed = seed.unwrap_or_else(random);
+            let mut new_world = World::async_new(
+                WorldManager::NEW_WORLD_WIDTH,
+                WorldManager::NEW_WORLD_HEIGHT,
+                seed,
+            );
+            match new_world.generate() {
+                Ok(()) => Ok(new_world),
+                Err(err) => Err(err),
+            }
+        })
+    }
 }

src/components/mod.rs

@@ -1,2 +1 @@
-#[cfg(feature = "render")]
+
-pub(crate) mod panning;

src/components/panning/mod.rs

@@ -1,12 +0,0 @@
-use bevy::ecs::component::Component;
-
-#[derive(Component)]
-pub(crate) struct Pan2d {
-    pub(crate) enabled: bool,
-}
-impl Pan2d {
-    #[must_use]
-    pub(crate) const fn new() -> Pan2d {
-        Pan2d { enabled: true }
-    }
-}

src/gui/widget.rs

@@ -6,6 +6,7 @@ use {
             world::World,
         },
         log::debug,
+        prelude::*,
         utils::HashMap,
     },
     bevy_egui::egui::Ui,
@@ -44,8 +45,8 @@ pub(crate) fn widget<S: 'static + WidgetSystem>(world: &mut World, ui: &mut Ui,
 /// A UI widget may have multiple instances. We need to ensure the local state
 /// of these instances is not shared. This hashmap allows us to dynamically
 /// store instance states.
-#[derive(Default)]
+#[derive(Default, Resource)]
-struct StateInstances<T: WidgetSystem> {
+struct StateInstances<T: WidgetSystem + 'static> {
     instances: HashMap<WidgetId, SystemState<T>>,
 }
 

src/gui/widgets/toolbar.rs

@@ -7,7 +7,7 @@ use {
             WidgetSystem,
         },
         macros::iterable_enum,
-        resources::{OpenedWindows, ShouldRedraw},
+        resources::{GenerateWorldTask, OpenedWindows},
     },
     bevy::{
         ecs::{
@@ -34,10 +34,11 @@ impl ToolbarButton {
         world.resource_scope(|world, mut world_manager: Mut<'_, WorldManager>| {
             match self {
                 ToolbarButton::GenerateWorld => {
-                    if let Err(err) = world_manager.new_world(None) {
+                    let generate_world_task = &mut world.resource_mut::<GenerateWorldTask>();
-                        eprintln!("Failed to generate world: {}", err);
+                    if generate_world_task.0.is_some() {
+                        debug!("Already generating new world")
                     } else {
-                        world.resource_mut::<ShouldRedraw>().0 = true;
+                        generate_world_task.0 = Some(world_manager.new_world_async(None))
                     }
                 },
                 ToolbarButton::SaveLoad => {

src/gui/window.rs

@@ -8,6 +8,7 @@ use {
             world::World,
         },
         log::debug,
+        prelude::Resource,
         utils::HashMap,
     },
     bevy_egui::egui::{Context, Ui, Window},
@@ -80,8 +81,8 @@ fn window<S: 'static + WindowSystem>(world: &mut World, ctx: &Context) {
     });
 }
 
-#[derive(Default)]
+#[derive(Default, Resource)]
-struct StateInstances<T: WindowSystem> {
+struct StateInstances<T: WindowSystem + 'static> {
     instances: HashMap<WindowId, SystemState<T>>,
 }
 

src/main.rs

@@ -1,5 +1,10 @@
 #![cfg_attr(not(feature = "logging"), windows_subsystem = "windows")]
 
+use {
+    crate::resources::GenerateWorldTask,
+    futures_lite::future::{block_on, poll_once},
+};
+
 pub(crate) mod components;
 #[cfg(feature = "render")]
 pub(crate) mod gui;
@@ -7,52 +12,16 @@ pub(crate) mod macros;
 #[cfg(feature = "render")]
 pub(crate) mod planet_renderer;
 pub(crate) mod plugins;
-#[cfg(feature = "render")]
 pub(crate) mod resources;
 
-use {
+use {bevy::prelude::*, planet::WorldManager, plugins::WorldPlugins};
-    bevy::{
-        app::App,
-        log::LogSettings,
-        utils::{default, tracing::Level},
-    },
-    planet::WorldManager,
-    plugins::WorldPlugins,
-};
 #[cfg(feature = "render")]
 use {
-    bevy::{
+    bevy::render::camera::RenderTarget,
-        asset::Assets,
-        core_pipeline::core_2d::{Camera2d, Camera2dBundle},
-        ecs::{
-            change_detection::{Mut, ResMut},
-            query::With,
-            system::{Commands, IntoExclusiveSystem, Query, Res},
-            world::World,
-        },
-        input::{keyboard::KeyCode, Input},
-        prelude::Vec2,
-        render::{
-            camera::{Camera, RenderTarget},
-            render_resource::{
-                Extent3d,
-                TextureDescriptor,
-                TextureDimension,
-                TextureFormat,
-                TextureUsages,
-            },
-            texture::{Image, ImageSettings},
-        },
-        sprite::{Sprite, SpriteBundle},
-        transform::components::GlobalTransform,
-        window::{WindowDescriptor, Windows},
-        winit::WinitSettings,
-    },
     bevy_egui::{
         egui::{FontData, FontDefinitions, FontFamily},
         EguiContext,
     },
-    components::panning::Pan2d,
     gui::{render_windows, widget, widgets::ToolbarWidget, window::open_window, windows::TileInfo},
     planet_renderer::{WorldRenderSettings, WorldRenderer},
     resources::{CursorMapPosition, OpenedWindows, ShouldRedraw},
@@ -98,16 +67,45 @@ fn update_cursor_map_position(
     }
 }
 
+fn handle_generate_world_task(
+    mut generate_world_task: ResMut<'_, GenerateWorldTask>,
+    mut world_manager: ResMut<'_, WorldManager>,
+    #[cfg(feature = "render")] mut should_redraw: ResMut<'_, ShouldRedraw>,
+) {
+    if let Some(task) = &mut generate_world_task.0 {
+        if task.is_finished() {
+            debug!("Done");
+            if let Some(result) = block_on(poll_once(task)) {
+                match result {
+                    Ok(world) => {
+                        world_manager.set_world(world);
+                        #[cfg(feature = "render")]
+                        {
+                            should_redraw.0 = true;
+                        }
+                    },
+                    Err(err) => error!("{err:#?}"),
+                }
+            }
+            generate_world_task.0 = None;
+        } else {
+            debug!("Working")
+        }
+    }
+}
+
 #[cfg(feature = "render")]
 fn generate_graphics(
     mut commands: Commands<'_, '_>,
     world_manager: ResMut<'_, WorldManager>,
-    mut images: ResMut<'_, Assets<Image>>,
+    images: ResMut<'_, Assets<Image>>,
-    mut egui_context: ResMut<'_, EguiContext>,
+    egui_context: ResMut<'_, EguiContext>,
-    mut render_settings: ResMut<'_, WorldRenderSettings>,
+    render_settings: ResMut<'_, WorldRenderSettings>,
 ) {
     // Add Julia-Mono font to egui
+
     {
+        let egui_context = egui_context.into_inner();
         let ctx = egui_context.ctx_mut();
         let mut fonts = FontDefinitions::default();
         const FONT_NAME: &str = "Julia-Mono";
@@ -143,6 +141,14 @@ fn generate_graphics(
     };
     // Set up 2D map mode
     {
+        use bevy::render::render_resource::{
+            TextureDescriptor,
+            TextureDimension,
+            TextureFormat,
+            TextureUsages,
+        };
+        let images = images.into_inner();
+        let mut render_settings = render_settings.into_inner();
         let map_image_handle = images.add(Image {
             data: vec![],
             texture_descriptor: TextureDescriptor {
@@ -156,14 +162,13 @@ fn generate_graphics(
             },
             ..default()
         });
-        render_settings.map_image_handle_id = Some(map_image_handle.id);
+        render_settings.map_image_handle_id = Some(map_image_handle.id());
-        _ = commands
+        _ = commands.spawn(Camera2dBundle::default());
-            .spawn_bundle(Camera2dBundle::default())
-            .insert(Pan2d::new());
 
         // TODO: Switch to egui
-        _ = commands.spawn_bundle(SpriteBundle {
+        _ = commands.spawn(SpriteBundle {
-            texture: images.get_handle(map_image_handle.id),
+            texture: images
+                .get_handle(unsafe { render_settings.map_image_handle_id.unwrap_unchecked() }),
             sprite: Sprite {
                 custom_size: Some(custom_sprite_size),
                 ..default()
@@ -234,7 +239,7 @@ fn redraw_map(
         let map_image = images
             .get_mut(&map_image_handle)
             .expect("Map image handle pointing to non-existing image");
-        map_image.resize(Extent3d {
+        map_image.resize(bevy::render::render_resource::Extent3d {
             width:                 world_manager.world().width,
             height:                world_manager.world().height,
             depth_or_array_layers: 1,
@@ -246,48 +251,49 @@ fn redraw_map(
 }
 
 #[cfg(feature = "render")]
-const WORLD_SCALE: i32 = 4;
+const WORLD_SCALE: i32 = 2;
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     let mut app = App::new();
     let mut manager = WorldManager::new();
     #[cfg(feature = "render")]
     {
-        let world = manager.new_world(None)?;
+        use bevy::winit::WinitSettings;
+
+        let world = manager.new_world(Some(0))?;
         _ = app
             .insert_resource(WinitSettings::game())
-            // Use nearest-neighbor rendering for cripsier pixels
+            .insert_resource(CursorMapPosition::default())
-            .insert_resource(ImageSettings::default_nearest())
+            .insert_resource(OpenedWindows::default())
-            .insert_resource(WindowDescriptor {
+            .insert_resource(WorldRenderSettings::default())
+            .insert_resource(ShouldRedraw::default())
+            .insert_resource(GenerateWorldTask::default())
+            .add_startup_system(generate_graphics)
+            .add_system(update_gui)
+            .add_system(update_cursor_map_position)
+            .add_system(open_tile_info)
+            .add_system(redraw_map);
+
+        app.add_plugins(WorldPlugins.set(WindowPlugin {
+            window: WindowDescriptor {
                 width: (WORLD_SCALE * world.width as i32) as f32,
                 height: (WORLD_SCALE * world.height as i32) as f32,
                 title: String::from("World-RS"),
                 resizable: true,
                 ..default()
-            })
+            },
-            .insert_resource(CursorMapPosition::default())
+            ..default()
-            .insert_resource(OpenedWindows::default())
+        }));
-            .insert_resource(WorldRenderSettings::default())
-            .insert_resource(ShouldRedraw::default())
-            .add_startup_system(generate_graphics)
-            .add_system(update_gui.exclusive_system())
-            .add_system(update_cursor_map_position)
-            .add_system(open_tile_info)
-            .add_system(redraw_map);
     }
     #[cfg(not(feature = "render"))]
     {
-        _ = manager.new_world()?
+        _ = manager.new_world(Some(0))?;
+
+        app.add_plugins(WorldPlugins);
     }
 
-    _ = app.insert_resource(LogSettings {
+    app.add_system(handle_generate_world_task)
-        #[cfg(feature = "logging")]
+        .insert_resource(manager)
-        level: Level::DEBUG,
+        .run();
-        #[cfg(not(feature = "logging"))]
-        level: Level::WARN,
-        ..default()
-    });
-
-    app.add_plugins(WorldPlugins).insert_resource(manager).run();
 
     Ok(())
 }

src/planet_renderer.rs

@@ -1,6 +1,10 @@
 use {
     crate::macros::iterable_enum_stringify,
-    bevy::{asset::HandleId, prelude::Color, utils::HashSet},
+    bevy::{
+        asset::HandleId,
+        prelude::{Color, Resource},
+        utils::HashSet,
+    },
     planet::{BiomeStats, TerrainCell, World, WorldManager},
 };
 
@@ -15,7 +19,7 @@ iterable_enum_stringify!(WorldOverlay {
 });
 
 #[cfg(feature = "render")]
-#[derive(Debug, Default)]
+#[derive(Debug, Default, Resource)]
 pub struct WorldRenderSettings {
     pub map_image_handle_id: Option<HandleId>,
 

src/plugins/mod.rs

@@ -1,4 +1,2 @@
-#[cfg(feature = "render")]
-pub(crate) mod panning_plugin;
 pub(crate) mod world_plugins;
 pub(crate) use world_plugins::WorldPlugins;

src/plugins/panning_plugin.rs

@@ -1,47 +0,0 @@
-use {
-    crate::components::panning::Pan2d,
-    bevy::{
-        app::{App, Plugin},
-        ecs::{
-            event::EventReader,
-            query::With,
-            system::{Query, Res},
-        },
-        input::{
-            mouse::{MouseButton, MouseMotion},
-            Input,
-        },
-        sprite::Sprite,
-        transform::components::Transform,
-    },
-};
-
-#[derive(Default)]
-pub(crate) struct PanningPlugin;
-
-impl Plugin for PanningPlugin {
-    fn build(&self, app: &mut App) {
-        _ = app.add_system(panning_system_2d);
-    }
-}
-
-fn panning_system_2d(
-    mut query: Query<'_, '_, (&mut Transform, &Pan2d), With<Sprite>>,
-    mut mouse_motion_events: EventReader<'_, '_, MouseMotion>,
-    input_mouse: Res<'_, Input<MouseButton>>,
-) {
-    if !input_mouse.pressed(MouseButton::Left) {
-        return;
-    }
-
-    let mut horizontal = 0.0;
-    for movement in mouse_motion_events.iter() {
-        horizontal += movement.delta.x;
-    }
-
-    query.for_each_mut(|(mut transform, pan)| {
-        if pan.enabled {
-            transform.translation.x += horizontal;
-        }
-    });
-}

src/plugins/world_plugins.rs

@@ -1,25 +1,21 @@
 pub(crate) struct WorldPlugins;
 
+#[cfg(not(feature = "render"))]
+use bevy::app::ScheduleRunnerPlugin;
+#[cfg(all(feature = "logging"))]
+use bevy::diagnostic::{DiagnosticsPlugin, FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin};
 use bevy::{
     app::{PluginGroup, PluginGroupBuilder},
     core::CorePlugin,
-    diagnostic::{DiagnosticsPlugin, LogDiagnosticsPlugin},
+    log::{Level, LogPlugin},
-    log::LogPlugin,
+    prelude::*,
     time::TimePlugin,
 };
-
-impl PluginGroup for WorldPlugins {
-    fn build(&mut self, group: &mut PluginGroupBuilder) {
-        _ = group.add(LogPlugin).add(CorePlugin).add(TimePlugin);
-
 #[cfg(feature = "render")]
-        {
 use {
-                crate::plugins::panning_plugin::PanningPlugin,
     bevy::{
         asset::AssetPlugin,
         core_pipeline::CorePipelinePlugin,
-                    hierarchy::HierarchyPlugin,
         input::InputPlugin,
         render::RenderPlugin,
         sprite::SpritePlugin,
@@ -32,34 +28,48 @@ impl PluginGroup for WorldPlugins {
     bevy_egui::EguiPlugin,
 };
 
-            _ = group
+impl PluginGroup for WorldPlugins {
+    fn build(self) -> PluginGroupBuilder {
+        let mut group_builder = PluginGroupBuilder::start::<Self>()
+            .add(LogPlugin {
+                #[cfg(feature = "logging")]
+                level: Level::DEBUG,
+                #[cfg(not(feature = "logging"))]
+                level: Level::WARN,
+                ..default()
+            })
+            .add(CorePlugin::default()) // sets compute pool config
+            .add(TimePlugin);
+
+        #[cfg(feature = "render")]
+        {
+            group_builder = group_builder
                 .add(TransformPlugin)
-                // hierarchy
                 .add(InputPlugin)
-                .add(WindowPlugin)
+                .add(WindowPlugin::default())
-                .add(AssetPlugin)
+                .add(AssetPlugin::default())
-                .add(HierarchyPlugin)
-                .add(WinitPlugin)
                 .add(RenderPlugin)
+                .add(ImagePlugin::default_nearest())
+                .add(WinitPlugin)
                 .add(CorePipelinePlugin)
                 .add(SpritePlugin)
                 .add(TextPlugin)
                 .add(UiPlugin)
-                .add(PanningPlugin)
                 .add(EguiPlugin);
         }
         #[cfg(not(feature = "render"))]
         {
-            use bevy::app::ScheduleRunnerPlugin;
+            group_builder = group_builder.add(ScheduleRunnerPlugin);
-            _ = group.add(ScheduleRunnerPlugin);
         }
 
-        _ = group.add(DiagnosticsPlugin);
+        #[cfg(feature = "logging")]
-        #[cfg(all(feature = "logging"))]
         {
-            use bevy::diagnostic::FrameTimeDiagnosticsPlugin;
+            group_builder = group_builder
-            _ = group.add(FrameTimeDiagnosticsPlugin);
+                .add(DiagnosticsPlugin)
+                .add(FrameTimeDiagnosticsPlugin)
+                .add(LogDiagnosticsPlugin::default());
         }
-        _ = group.add(LogDiagnosticsPlugin::default());
+
+        group_builder
     }
 }

src/resources/mod.rs

@@ -1,26 +1,38 @@
+#[cfg(feature = "render")]
 use {crate::gui::WindowId, bevy::utils::HashSet, std::fmt::Display};
+use {
+    bevy::{prelude::Resource, tasks::Task},
+    planet::{World, WorldGenError},
+};
 
-#[derive(Default, Debug)]
+#[cfg(feature = "render")]
+#[derive(Default, Debug, Resource)]
 pub(crate) struct CursorMapPosition {
     pub(crate) x: i32,
     pub(crate) y: i32,
 }
+#[cfg(feature = "render")]
 impl Display for CursorMapPosition {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         f.write_fmt(format_args!("x: {}, y: {}", self.x, self.y))
     }
 }
 
+#[cfg(feature = "render")]
+#[derive(Resource)]
 pub(crate) struct ShouldRedraw(pub(crate) bool);
+#[cfg(feature = "render")]
 impl Default for ShouldRedraw {
     fn default() -> Self {
         Self(true)
     }
 }
 
-#[derive(Default)]
+#[cfg(feature = "render")]
+#[derive(Default, Resource)]
 pub(crate) struct OpenedWindows(HashSet<WindowId>);
 
+#[cfg(feature = "render")]
 impl OpenedWindows {
     pub(crate) fn open(&mut self, id: WindowId) {
         // Ignore opening already opened windows
@@ -36,3 +48,6 @@ impl OpenedWindows {
         self.0.contains(id)
     }
 }
+
+#[derive(Default, Resource)]
+pub struct GenerateWorldTask(pub Option<Task<Result<World, WorldGenError>>>);