Add progress bar for world generation.

Also remove a bunch of spammy logging

Cargo.lock

@@ -2087,6 +2087,7 @@ name = "planet"
 version = "0.3.0"
 dependencies = [
  "bevy",
+ "crossbeam-channel",
  "postcard",
  "rand",
  "serde",
@@ -3087,6 +3088,7 @@ version = "0.3.0"
 dependencies = [
  "bevy",
  "bevy_egui",
+ "crossbeam-channel",
  "futures-lite",
  "fxhash",
  "planet",

Cargo.toml

@@ -55,3 +55,8 @@ optional = true
 [dependencies.futures-lite]
 version = "1.12.0"
 default-features = false
+
+[dependencies.crossbeam-channel]
+version = "0.5.6"
+default-features = false
+features = ["std"]

planet/Cargo.toml

@@ -27,3 +27,8 @@ features = ["derive"]
 version = "1.0.2"
 default-features = false
 features = ["use-std"]
+
+[dependencies.crossbeam-channel]
+version = "0.5.6"
+default-features = false
+features = ["std"]

planet/src/lib.rs

@@ -4,7 +4,7 @@ pub mod biome;
 pub use biome::{BiomeStats, BiomeType};
 pub mod world_manager;
 pub use world_manager::WorldManager;
-pub(crate) mod macros;
+pub mod macros;
 pub mod math_util;
 pub mod perlin;
 pub mod saving;

planet/src/world.rs

@@ -17,6 +17,7 @@ use {
         prelude::Vec2,
         utils::{default, HashMap},
     },
+    crossbeam_channel::Sender,
     rand::{rngs::StdRng, Rng, SeedableRng},
     serde::{Deserialize, Serialize},
     std::{
@@ -169,18 +170,25 @@ impl World {
         }
     }
 
-    pub fn generate(&mut self) -> Result<(), WorldGenError> {
+    pub fn generate(
-        if let Err(err) = self.generate_altitude() {
+        &mut self,
+        progress_sender: &Sender<(f32, String)>,
+    ) -> Result<(), WorldGenError> {
+        send_progress(progress_sender, 0.0, "Generating altitude");
+        if let Err(err) = self.generate_altitude(progress_sender) {
             return Err(WorldGenError::CartesianError(err));
         }
-        if let Err(err) = self.generate_rainfall() {
+        send_progress(progress_sender, 0.0, "Generating rainfall");
+        if let Err(err) = self.generate_rainfall(progress_sender) {
             return Err(WorldGenError::CartesianError(err));
         }
-        if let Err(err) = self.generate_temperature() {
+        send_progress(progress_sender, 0.0, "Generating temperature");
+        if let Err(err) = self.generate_temperature(progress_sender) {
             return Err(WorldGenError::CartesianError(err));
         }
 
-        self.generate_biomes();
+        send_progress(progress_sender, 0.0, "Generating biomes");
+        self.generate_biomes(progress_sender);
 
         Ok(())
     }
@@ -192,8 +200,8 @@ impl World {
         let height = self.height as f32;
 
         for i in 0..World::NUM_CONTINENTS {
-            #[cfg(feature = "logging")]
+            // #[cfg(feature = "logging")]
-            info!("Continents {}/{}", i, World::NUM_CONTINENTS);
+            // info!("Continents: {}/{}", i, World::NUM_CONTINENTS);
 
             self.continent_offsets[i as usize].x = self
                 .rng
@@ -254,7 +262,10 @@ impl World {
         max_value
     }
 
-    fn generate_altitude(&mut self) -> Result<(), CartesianError> {
+    fn generate_altitude(
+        &mut self,
+        progress_sender: &Sender<(f32, String)>,
+    ) -> Result<(), CartesianError> {
         info!("Generating altitude");
         self.generate_continents();
 
@@ -270,13 +281,20 @@ impl World {
         let offset_4 = World::random_offset_vector(&mut self.rng);
         let offset_5 = World::random_offset_vector(&mut self.rng);
 
-        for y in 0..self.terrain.len() {
+        let height = self.terrain.len();
-            #[cfg(feature = "logging")]
+        for y in 0..height {
-            info!("Altitude: {}/{}", y, self.terrain.len());
-
             let alpha = (y as f32 / self.height as f32) * PI;
 
-            for x in 0..self.terrain[y].len() {
+            let width = self.terrain[y].len();
+            let size = height * width;
+            for x in 0..width {
+                let index = y * width + x;
+                send_progress(
+                    progress_sender,
+                    index as f32 / size as f32,
+                    format!("Generating topography: {index}/{size}"),
+                );
+
                 let beta = (x as f32 / self.width as f32) * TAU;
 
                 let value_1 =
@@ -385,20 +403,27 @@ impl World {
         World::MIN_ALTITUDE + (raw_altitude * World::ALTITUDE_SPAN)
     }
 
-    fn generate_rainfall(&mut self) -> Result<(), CartesianError> {
+    fn generate_rainfall(
-        #[cfg(feature = "logging")]
+        &mut self,
+        progress_sender: &Sender<(f32, String)>,
+    ) -> Result<(), CartesianError> {
         info!("Generating rainfall");
         const RADIUS: f32 = 2.0;
         let offset = World::random_offset_vector(&mut self.rng);
 
         let height = self.terrain.len();
         for y in 0..height {
-            #[cfg(feature = "logging")]
-            info!("Rainfall: {}/{}", y, height);
             let alpha = (y as f32 / self.height as f32) * PI;
 
             let width = self.terrain[y].len();
+            let size = width * height;
             for x in 0..width {
+                let index = y * width + x;
+                send_progress(
+                    progress_sender,
+                    index as f32 / size as f32,
+                    format!("Generating rainfall: {index}/{size}"),
+                );
                 let beta = (x as f32 / self.width as f32) * TAU;
 
                 let random_noise =
@@ -459,17 +484,28 @@ impl World {
         )
     }
 
-    fn generate_temperature(&mut self) -> Result<(), CartesianError> {
+    fn generate_temperature(
-        #[cfg(feature = "logging")]
+        &mut self,
+        progress_sender: &Sender<(f32, String)>,
+    ) -> Result<(), CartesianError> {
         info!("Generating temperature");
         let offset = World::random_offset_vector(&mut self.rng);
         const RADIUS: f32 = 2.0;
 
-        for y in 0..self.terrain.len() {
+        let height = self.terrain.len();
-            #[cfg(feature = "logging")]
+        for y in 0..height {
-            info!("Temperature: {}/{}", y, self.terrain.len());
             let alpha = (y as f32 / self.height as f32) * PI;
-            for x in 0..self.terrain[y].len() {
+
+            let width = self.terrain[y].len();
+            let size = width * height;
+            for x in 0..width {
+                let index = y * width + x;
+                send_progress(
+                    progress_sender,
+                    index as f32 / size as f32,
+                    format!("Generating temperature: {index}/{size}"),
+                );
+
                 let beta = (x as f32 / self.width as f32) * TAU;
 
                 let random_noise =
@@ -496,6 +532,7 @@ impl World {
             }
         }
 
+        info!("Done generating temperature");
         Ok(())
     }
 
@@ -507,12 +544,19 @@ impl World {
         )
     }
 
-    fn generate_biomes(&mut self) {
+    fn generate_biomes(&mut self, progress_sender: &Sender<(f32, String)>) {
         info!("Generating biomes");
-        for y in 0..self.terrain.len() {
+        let height = self.terrain.len();
-            #[cfg(feature = "logging")]
+        for y in 0..height {
-            info!("Biomes: {}/{}", y, self.terrain.len());
+            let width = self.terrain[y].len();
-            for x in 0..self.terrain[y].len() {
+            let size = height * width;
+            for x in 0..width {
+                let index = y * width + x;
+                send_progress(
+                    progress_sender,
+                    index as f32 / size as f32,
+                    format!("Generating biomes: {index}/{size}"),
+                );
                 let cell = &self.terrain[y][x];
 
                 let mut total_presence = 0.0;
@@ -534,6 +578,7 @@ impl World {
                     .collect();
             }
         }
+        info!("Done generating biomes");
     }
 
     fn biome_presence(&self, cell: &TerrainCell, biome: &BiomeStats) -> f32 {
@@ -767,3 +812,15 @@ impl World {
         return false;
     }
 }
+
+fn send_progress<T: Into<String>>(
+    progress_sender: &Sender<(f32, String)>,
+    progress: f32,
+    progress_text: T,
+) {
+    if let Err(_) = progress_sender.try_send((progress, progress_text.into())) {
+        // Quietly ignore the error, it's not critical, and logging is slow.
+
+        // debug!("Failed to send world generation progress. {err}");
+    }
+}

planet/src/world_manager.rs

@@ -6,6 +6,7 @@ use {
         tasks::{AsyncComputeTaskPool, Task},
         utils::default,
     },
+    crossbeam_channel::Sender,
     rand::random,
     std::{
         error::Error,
@@ -99,7 +100,6 @@ impl WorldManager {
             return Err(SaveError::MissingWorld);
         };
 
-        
         let serialized = match postcard::to_stdvec(world) {
             Ok(serialized) => serialized,
             Err(err) => {
@@ -139,11 +139,15 @@ impl WorldManager {
         self.world.as_ref()
     }
 
-        pub fn set_world(&mut self, world: World) {
+    pub fn set_world(&mut self, world: World) {
         self.world = Some(world);
     }
 
-    pub fn new_world_async(&mut self, seed: Option<u32>) -> Task<Result<World, WorldGenError>> {
+    pub fn new_world_async(
+        &mut self,
+        seed: Option<u32>,
+        progress_sender: Sender<(f32, String)>,
+    ) -> Task<Result<World, WorldGenError>> {
         AsyncComputeTaskPool::get().spawn(async move {
             let seed = seed.unwrap_or_else(random);
             let mut new_world = World::async_new(
@@ -151,7 +155,18 @@ impl WorldManager {
                 WorldManager::NEW_WORLD_HEIGHT,
                 seed,
             );
-            match new_world.generate() {
+            if let Err(_) =
+                progress_sender.try_send((0.0, String::from("Generating new world...")))
+            {
+                // Quietly ignore. It's not critical and logging is slow.
+            }
+            let result = new_world.generate(&progress_sender);
+            if let Err(_) =
+                progress_sender.try_send((1.0, String::from("Done generating world!")))
+            {
+                // Quietly ignore. See above
+            }
+            match result {
                 Ok(()) => Ok(new_world),
                 Err(err) => Err(err),
             }

src/gui/mod.rs

@@ -1,9 +1,9 @@
-pub(crate) mod widget;
+pub mod widget;
-pub(crate) use widget::*;
+pub use widget::*;
-pub(crate) mod window;
+pub mod window;
-pub(crate) use window::*;
+pub use window::*;
 
-pub(crate) mod widgets;
+pub mod widgets;
-pub(crate) mod windows;
+pub mod windows;
 
 use crate::gui::{open_window, WidgetId, WidgetSystem};

src/gui/widget.rs

@@ -14,11 +14,11 @@ use {
     std::hash::Hasher,
 };
 
-pub(crate) trait WidgetSystem: SystemParam {
+pub trait WidgetSystem: SystemParam {
     fn render(world: &mut World, state: &mut SystemState<Self>, ui: &mut Ui, id: WidgetId);
 }
 
-pub(crate) fn widget<S: 'static + WidgetSystem>(world: &mut World, ui: &mut Ui, id: WidgetId) {
+pub fn widget<S: 'static + WidgetSystem>(world: &mut World, ui: &mut Ui, id: WidgetId) {
     // We need to cache `SystemState` to allow for a system's locally tracked state
     if !world.contains_resource::<StateInstances<S>>() {
         // Note, this message should only appear once! If you see it twice in the logs,
@@ -51,10 +51,10 @@ struct StateInstances<T: WidgetSystem + 'static> {
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub(crate) struct WidgetId(pub(crate) u64);
+pub struct WidgetId(pub u64);
 impl WidgetId {
     #[must_use]
-    pub(crate) fn new(name: &str) -> Self {
+    pub fn new(name: &str) -> Self {
         let bytes = name.as_bytes();
         let mut hasher = FxHasher32::default();
         hasher.write(bytes);
@@ -62,7 +62,7 @@ impl WidgetId {
     }
 
     // #[must_use]
-    // pub(crate) fn with(&self, name: &str) -> Self {
+    // pub fn with(&self, name: &str) -> Self {
     //     Self::new(&format!("{}{name}", self.0))
     // }
 }

src/gui/widgets/mod.rs

@@ -1,2 +1,2 @@
 mod toolbar;
-pub(crate) use toolbar::ToolbarWidget;
+pub use toolbar::ToolbarWidget;

src/gui/widgets/toolbar.rs

@@ -7,7 +7,7 @@ use {
             WidgetSystem,
         },
         macros::iterable_enum,
-        resources::{GenerateWorldTask, OpenedWindows},
+        resources::{GenerateWorldProgressChannel, GenerateWorldTask, OpenedWindows},
     },
     bevy::{
         ecs::{
@@ -34,11 +34,13 @@ impl ToolbarButton {
         world.resource_scope(|world, mut world_manager: Mut<WorldManager>| {
             match self {
                 ToolbarButton::GenerateWorld => {
+                    let progress_sender = world.resource::<GenerateWorldProgressChannel>().sender();
                     let generate_world_task = &mut world.resource_mut::<GenerateWorldTask>();
                     if generate_world_task.0.is_some() {
                         debug!("Already generating new world")
                     } else {
-                        generate_world_task.0 = Some(world_manager.new_world_async(None))
+                        generate_world_task.0 =
+                            Some(world_manager.new_world_async(None, progress_sender))
                     }
                 },
                 ToolbarButton::SaveLoad => {
@@ -87,7 +89,7 @@ impl From<&ToolbarButton> for String {
 }
 
 #[derive(SystemParam)]
-pub(crate) struct ToolbarWidget<'w, 's> {
+pub struct ToolbarWidget<'w, 's> {
     #[system_param(ignore)]
     _phantom: PhantomData<(&'w (), &'s ())>,
 }

src/gui/window.rs

@@ -16,13 +16,13 @@ use {
     std::hash::Hasher,
 };
 
-pub(crate) trait WindowSystem: SystemParam {
+pub trait WindowSystem: SystemParam {
     fn draw_contents(world: &mut World, state: &mut SystemState<Self>, ui: &mut Ui);
     fn name() -> &'static str;
     fn resizable() -> bool;
 }
 
-pub(crate) fn render_windows(world: &mut World, ctx: &Context) {
+pub fn render_windows(world: &mut World, ctx: &Context) {
     // TODO: Windows are hard-coded here instead of being iterable, and allows
     // creating new windows that are never rendered.
     // Is that good enough?
@@ -32,10 +32,10 @@ pub(crate) fn render_windows(world: &mut World, ctx: &Context) {
     window::<windows::SaveLoad>(world, ctx);
 }
 
-pub(crate) fn open_window<S: 'static + WindowSystem>(windows: &mut OpenedWindows) {
+pub fn open_window<S: 'static + WindowSystem>(windows: &mut OpenedWindows) {
     windows.open(S::name().into());
 }
-pub(crate) fn close_window<S: 'static + WindowSystem>(windows: &mut OpenedWindows) {
+pub fn close_window<S: 'static + WindowSystem>(windows: &mut OpenedWindows) {
     windows.close(&S::name().into());
 }
 
@@ -87,10 +87,10 @@ struct StateInstances<T: WindowSystem + 'static> {
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub(crate) struct WindowId(pub(crate) u64);
+pub struct WindowId(pub u64);
 impl WindowId {
     #[must_use]
-    pub(crate) fn new(name: &str) -> Self {
+    pub fn new(name: &str) -> Self {
         let bytes = name.as_bytes();
         let mut hasher = FxHasher32::default();
         hasher.write(bytes);
@@ -98,7 +98,7 @@ impl WindowId {
     }
 
     // #[must_use]
-    // pub(crate) fn with(&self, name: &str) -> Self {
+    // pub fn with(&self, name: &str) -> Self {
     //     Self::new(&format!("{}{name}", self.0))
     // }
 }

src/gui/windows/mod.rs

@@ -1,8 +1,8 @@
 mod tile_info;
-pub(crate) use tile_info::TileInfo;
+pub use tile_info::TileInfo;
 mod world_view_selection;
-pub(crate) use world_view_selection::WorldViewSelection;
+pub use world_view_selection::WorldViewSelection;
 mod world_overlay_selection;
-pub(crate) use world_overlay_selection::WorldOverlaySelection;
+pub use world_overlay_selection::WorldOverlaySelection;
 mod save_load;
-pub(crate) use save_load::SaveLoad;
+pub use save_load::SaveLoad;

src/gui/windows/save_load.rs

@@ -14,7 +14,7 @@ use {
 };
 
 #[derive(SystemParam)]
-pub(crate) struct SaveLoad<'w, 's> {
+pub struct SaveLoad<'w, 's> {
     pub file_name: Local<'s, String>,
     #[system_param(ignore)]
     _phantom:      PhantomData<(&'w (), &'s ())>,

src/gui/windows/tile_info.rs

@@ -10,7 +10,7 @@ use {
 };
 
 #[derive(SystemParam)]
-pub(crate) struct TileInfo<'w, 's> {
+pub struct TileInfo<'w, 's> {
     #[system_param(ignore)]
     _phantom: PhantomData<(&'w (), &'s ())>,
 }

src/gui/windows/world_overlay_selection.rs

@@ -14,7 +14,7 @@ use {
 };
 
 #[derive(SystemParam)]
-pub(crate) struct WorldOverlaySelection<'w, 's> {
+pub struct WorldOverlaySelection<'w, 's> {
     #[system_param(ignore)]
     _phantom: PhantomData<(&'w (), &'s ())>,
 }

src/gui/windows/world_view_selection.rs

@@ -14,7 +14,7 @@ use {
 };
 
 #[derive(SystemParam)]
-pub(crate) struct WorldViewSelection<'w, 's> {
+pub struct WorldViewSelection<'w, 's> {
     #[system_param(ignore)]
     _phantom: PhantomData<(&'w (), &'s ())>,
 }

src/main.rs

@@ -3,23 +3,24 @@
 use {
     crate::resources::GenerateWorldTask,
     futures_lite::future::{block_on, poll_once},
+    resources::GenerateWorldProgressChannel,
 };
 
-pub(crate) mod components;
+pub mod components;
 #[cfg(feature = "render")]
-pub(crate) mod gui;
+pub mod gui;
-pub(crate) mod macros;
+pub mod macros;
 #[cfg(feature = "render")]
-pub(crate) mod planet_renderer;
+pub mod planet_renderer;
-pub(crate) mod plugins;
+pub mod plugins;
-pub(crate) mod resources;
+pub mod resources;
 
 use {bevy::prelude::*, planet::WorldManager, plugins::WorldPlugins};
 #[cfg(feature = "render")]
 use {
     bevy::render::camera::RenderTarget,
     bevy_egui::{
-        egui::{FontData, FontDefinitions, FontFamily},
+        egui::{FontData, FontDefinitions, FontFamily, ProgressBar},
         EguiContext,
     },
     gui::{render_windows, widget, widgets::ToolbarWidget, window::open_window, windows::TileInfo},
@@ -73,6 +74,9 @@ fn handle_generate_world_task(
     mut generate_world_task: ResMut<GenerateWorldTask>,
     mut world_manager: ResMut<WorldManager>,
     #[cfg(feature = "render")] mut should_redraw: ResMut<ShouldRedraw>,
+    #[cfg(feature = "render")] mut egui_ctx: ResMut<'_, EguiContext>,
+    #[cfg(feature = "render")] progress_channel: Res<'_, GenerateWorldProgressChannel>,
+    #[cfg(feature = "render")] mut progress: Local<(f32, String)>,
 ) {
     if let Some(task) = &mut generate_world_task.0 {
         if task.is_finished() {
@@ -92,8 +96,24 @@ fn handle_generate_world_task(
                 }
             }
             generate_world_task.0 = None;
+            #[cfg(feature = "render")]
+            {
+                *progress = (0.0, String::from("Generating world..."));
+            }
         } else {
-            debug!("Still generating world")
+            debug!("Still generating world");
+
+            #[cfg(feature = "render")]
+            {
+                if let Ok(new_progress) = progress_channel.receiver().try_recv() {
+                    *progress = new_progress;
+                }
+                _ = bevy_egui::egui::TopBottomPanel::bottom("Generating World ProgressBar")
+                    .default_height(8.0)
+                    .show(egui_ctx.ctx_mut(), |ui| {
+                        ui.add(ProgressBar::new(progress.0).text(progress.1.as_str()));
+                    });
+            }
         }
     }
 }
@@ -293,9 +313,8 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     }
 
     app.insert_resource(WorldManager::new())
-        .insert_resource(GenerateWorldTask(
+        .insert_resource(GenerateWorldProgressChannel::new())
-            /* Some(manager.new_world_async(Some(0))) */ None,
+        .insert_resource(GenerateWorldTask(None))
-        ))
         .add_system(handle_generate_world_task)
         .run();
 

src/planet_renderer.rs

@@ -166,7 +166,7 @@ fn coastline_color(world: &World, cell: &TerrainCell) -> Color {
         COASTLINE_PALETTE[0]
     }
 }
-pub(crate) trait WorldRenderer {
+pub trait WorldRenderer {
     fn map_color_bytes(&self, render_settings: &WorldRenderSettings) -> Vec<u8>;
     fn generate_color(&self, cell: &TerrainCell, render_settings: &WorldRenderSettings) -> Color;
 }

src/plugins/mod.rs

@@ -1,2 +1,2 @@
-pub(crate) mod world_plugins;
+pub mod world_plugins;
-pub(crate) use world_plugins::WorldPlugins;
+pub use world_plugins::WorldPlugins;

src/plugins/world_plugins.rs

@@ -1,4 +1,4 @@
-pub(crate) struct WorldPlugins;
+pub struct WorldPlugins;
 
 #[cfg(not(feature = "render"))]
 use bevy::app::ScheduleRunnerPlugin;

src/resources/mod.rs

@@ -2,14 +2,15 @@
 use {crate::gui::WindowId, bevy::utils::HashSet, std::fmt::Display};
 use {
     bevy::{prelude::Resource, tasks::Task},
+    crossbeam_channel::{bounded, Receiver, Sender},
     planet::{World, WorldGenError},
 };
 
 #[cfg(feature = "render")]
 #[derive(Default, Debug, Resource)]
-pub(crate) struct CursorMapPosition {
+pub struct CursorMapPosition {
-    pub(crate) x: i32,
+    pub x: i32,
-    pub(crate) y: i32,
+    pub y: i32,
 }
 #[cfg(feature = "render")]
 impl Display for CursorMapPosition {
@@ -20,27 +21,53 @@ impl Display for CursorMapPosition {
 
 #[cfg(feature = "render")]
 #[derive(Resource, Default)]
-pub(crate) struct ShouldRedraw(pub(crate) bool);
+pub struct ShouldRedraw(pub bool);
 #[cfg(feature = "render")]
 #[derive(Default, Resource)]
-pub(crate) struct OpenedWindows(HashSet<WindowId>);
+pub struct OpenedWindows(HashSet<WindowId>);
 
 #[cfg(feature = "render")]
 impl OpenedWindows {
-    pub(crate) fn open(&mut self, id: WindowId) {
+    pub fn open(&mut self, id: WindowId) {
         // Ignore opening already opened windows
         _ = self.0.insert(id);
     }
 
-    pub(crate) fn close(&mut self, id: &WindowId) {
+    pub fn close(&mut self, id: &WindowId) {
         // Ignore closing already closed windows
         _ = self.0.remove(id);
     }
 
-    pub(crate) fn is_open(&self, id: &WindowId) -> bool {
+    pub fn is_open(&self, id: &WindowId) -> bool {
         self.0.contains(id)
     }
 }
 
+#[derive(Resource)]
+pub struct GenerateWorldProgressChannel(Sender<(f32, String)>, Receiver<(f32, String)>);
+
+impl GenerateWorldProgressChannel {
+    pub fn new() -> Self {
+        bounded(1).into()
+    }
+
+    pub fn sender(&self) -> Sender<(f32, String)> {
+        self.0.clone()
+    }
+
+    pub fn receiver(&self) -> &Receiver<(f32, String)> {
+        &self.1
+    }
+}
+impl Default for GenerateWorldProgressChannel {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+impl From<(Sender<(f32, String)>, Receiver<(f32, String)>)> for GenerateWorldProgressChannel {
+    fn from(value: (Sender<(f32, String)>, Receiver<(f32, String)>)) -> Self {
+        Self(value.0, value.1)
+    }
+}
 #[derive(Default, Resource)]
 pub struct GenerateWorldTask(pub Option<Task<Result<World, WorldGenError>>>);