So close to getting it to compile...

Then the real fun begins...

Cargo.toml

@@ -5,10 +5,12 @@ edition = "2021"
 build = "build.rs"
 
 [dependencies]
-bevy_fmod = { version = "0.3", features = ["live-update"] }
-bevy = { version = "0.11", features = ["jpeg", "hdr", "serialize"] }
+bevy_fmod = { branch = "update-0.12", git = "https://github.com/Salzian/bevy_fmod", features = ["live-update"] }
+bevy = { version = "0.12", features = ["jpeg", "hdr", "serialize"] }
 serde = "1"
 toml = { version = "0.8", features = ["parse"] }
+anyhow = "*"
+thiserror = "*"
 
 [profile.dev]
 opt-level = 3

src/credits.rs

@@ -1,7 +1,8 @@
 use std::str::Utf8Error;
+use thiserror::Error;
 
 use bevy::{
-    asset::{AssetLoader, LoadContext, LoadedAsset},
+    asset::{io::Reader, AssetLoader, LoadContext},
     reflect::{TypePath, TypeUuid},
     utils::BoxedFuture,
 };
@@ -12,8 +13,8 @@ pub(crate) struct CreditsPlugin;
 
 impl Plugin for CreditsPlugin {
     fn build(&self, app: &mut App) {
-        app.add_asset::<CreditsText>()
-            .init_asset_loader::<CreditsTextLoader>()
+        app.register_asset_loader(CreditsTextLoader)
+            .init_asset::<CreditsText>()
             .add_systems(Startup, init_credits_ui)
             .add_systems(
                 Update,
@@ -27,25 +28,36 @@ impl Plugin for CreditsPlugin {
     }
 }
 
-#[derive(Debug, TypeUuid, TypePath)]
+#[derive(Debug, TypeUuid, TypePath, Asset)]
 #[uuid = "43df4a09-b5f0-4619-9223-8cf67dc9e844"]
 pub struct CreditsText {
     sections: Vec<TextSection>,
 }
 
+#[derive(Debug, Error)]
+enum CreditsError {
+    IO(#[from] std::io::Error),
+    Parse(#[from] Utf8Error),
+}
+
 #[derive(Default)]
 struct CreditsTextLoader;
 
 impl AssetLoader for CreditsTextLoader {
+    type Asset = CreditsText;
+    type Settings = ();
+    type Error = CreditsError;
+
     fn load<'a>(
         &'a self,
-        bytes: &'a [u8],
+        reader: &'a mut Reader,
+        settings: &'a Self::Settings,
         load_context: &'a mut LoadContext,
-    ) -> BoxedFuture<'a, Result<(), bevy::asset::Error>> {
+    ) -> BoxedFuture<'a, Result<Self::Asset, Self::Error>> {
         Box::pin(async move {
-            let custom_asset = parse_credits(bytes)?;
-            load_context.set_default_asset(LoadedAsset::new(custom_asset));
-            Ok(())
+            let mut bytes = Vec::new();
+            reader.read_to_end(&mut bytes).await?;
+            parse_credits(bytes.as_slice())
         })
     }
 
@@ -112,10 +124,12 @@ fn update_credits(
     mut query: Query<(&mut Text, &Handle<CreditsText>)>,
 ) {
     reader.iter().for_each(|event| match event {
-        AssetEvent::Created { handle } | AssetEvent::Modified { handle } => {
+        AssetEvent::Added { id }
+        | AssetEvent::LoadedWithDependencies { id }
+        | AssetEvent::Modified { id } => {
             query
                 .iter_mut()
-                .filter(|(_, this_handle)| handle.clone() == (*this_handle).clone())
+                .filter(|(_, this_handle)| id == (*this_handle).id())
                 .for_each(|(mut text, this_handle)| {
                     if let Some(credits_text) = credits_texts.get(this_handle) {
                         text.sections = credits_text.sections.clone();

src/debug.rs

@@ -1,5 +1,4 @@
 use bevy::{
-    asset::diagnostic::AssetCountDiagnosticsPlugin,
     diagnostic::{
         DiagnosticsStore, EntityCountDiagnosticsPlugin, FrameTimeDiagnosticsPlugin,
         SystemInformationDiagnosticsPlugin,
@@ -17,10 +16,6 @@ impl Plugin for DebugPlugin {
         app.add_plugins((
             FrameTimeDiagnosticsPlugin,
             EntityCountDiagnosticsPlugin::default(),
-            AssetCountDiagnosticsPlugin::<Gltf>::default(),
-            AssetCountDiagnosticsPlugin::<Image>::default(),
-            AssetCountDiagnosticsPlugin::<Scene>::default(),
-            AssetCountDiagnosticsPlugin::<Font>::default(),
             SystemInformationDiagnosticsPlugin::default(),
         ))
         .init_resource::<DebugInfo>()
@@ -132,11 +127,9 @@ fn display_diagnostics(
     });
 }
 
-fn camera_info(
-    mut debug_infos: ResMut<DebugInfo>,
-    cameras: Query<(&Camera, &Name)>,
-) {
-    let camera_names = cameras.iter()
+fn camera_info(mut debug_infos: ResMut<DebugInfo>, cameras: Query<(&Camera, &Name)>) {
+    let camera_names = cameras
+        .iter()
         .filter(|(c, _)| c.is_active)
         .map(|(_, n)| n.as_str())
         .collect::<Vec<&str>>()

src/loading.rs

@@ -57,40 +57,20 @@ fn loading(
     tweakfile: Res<Assets<tweak::Tweakfile>>,
     mut next_state: ResMut<NextState<GameState>>,
 ) {
-    let s_ids = sprites
-        .ids()
-        .filter(|&id| matches!(id, HandleId::AssetPathId(_)))
-        .collect::<Vec<HandleId>>();
-
-    let g_ids = gltfs
-        .ids()
-        .filter(|&id| matches!(id, HandleId::AssetPathId(_)))
-        .collect::<Vec<HandleId>>();
-
-    let t_ids = tweakfile
-        .ids()
-        .filter(|&id| matches!(id, HandleId::AssetPathId(_)))
-        .collect::<Vec<HandleId>>();
-
-    debug!(
-        "Sprite len: {:?} | GLTF len: {:?} | Tweakfile: {:?}",
-        s_ids.len(),
-        g_ids.len(),
-        t_ids.len(),
-    );
-
-    if s_ids.len() > 0 && g_ids.len() > 0 {
-        let s_ready = s_ids
+    let s = sprites.iter().len() > 0
+        && sprites
             .iter()
-            .all(|&id| server.get_load_state(id) == LoadState::Loaded);
-        let g_ready = g_ids
+            .all(|id| server.is_loaded_with_dependencies(id));
+    let g = gltfs.iter().len() > 0
+        && gltfs
             .iter()
-            .all(|&id| server.get_load_state(id) == LoadState::Loaded);
-        let t_ready = t_ids
+            .all(|id| server.is_loaded_with_dependencies(id));
+    let t = tweakfile.iter().len() > 0
+        && tweakfile
             .iter()
-            .all(|&id| server.get_load_state(id) == LoadState::Loaded);
-        if s_ready && g_ready && t_ready {
-            next_state.set(GameState::Menu)
-        }
+            .all(|id| server.is_loaded_with_dependencies(id));
+
+    if s && g && t {
+        next_state.set(GameState::Menu)
     }
 }

src/main.rs

@@ -16,10 +16,7 @@ mod ui;
 
 use std::time::Duration;
 
-use bevy::{
-    asset::{ChangeWatcher, HandleId},
-    input::ButtonState,
-};
+use bevy::input::ButtonState;
 
 use crate::prelude::*;
 

src/menu.rs

@@ -1,7 +1,6 @@
 use bevy::{
     app::AppExit,
     input::{keyboard::KeyboardInput, ButtonState},
-    window::PrimaryWindow,
 };
 
 use crate::prelude::*;

src/prelude.rs

@@ -1,4 +1,3 @@
 pub use crate::*;
-pub use bevy::asset::LoadState;
 pub use bevy::gltf::Gltf;
 pub use bevy::prelude::*;

src/tweak.rs

@@ -1,10 +1,11 @@
 use crate::prelude::*;
 use bevy::{
-    asset::{AssetLoader, LoadContext, LoadedAsset},
+    asset::{io::Reader, AssetLoader, LoadContext},
     reflect::{TypePath, TypeUuid},
     utils::BoxedFuture,
 };
 use serde::Deserialize;
+use thiserror::Error;
 
 /// A Tweakfile is resource used to specify game customization like asset names,
 /// and non-user customizations made to the game during development.
@@ -28,7 +29,7 @@ fn load_tweakfile(server: Res<AssetServer>, mut commands: Commands) {
 struct GameTweakfile(Handle<Tweakfile>);
 
 /// Tweakfile contains tweaks made to other parts of the game
-#[derive(Debug, Deserialize, TypeUuid, TypePath)]
+#[derive(Debug, Deserialize, TypeUuid, TypePath, Asset)]
 #[uuid = "e5768efe-edce-4267-bdf4-dd8f8ca613c7"]
 pub(crate) struct Tweakfile {
     #[serde(default)]
@@ -42,17 +43,28 @@ pub(crate) struct Tweakfile {
 #[derive(Default)]
 pub struct TweakfileLoader;
 
+#[derive(Debug, Error)]
+enum TweakfileError {
+    IO(#[from] std::io::Error),
+    Parse(#[from] toml::de::Error),
+}
+
 impl AssetLoader for TweakfileLoader {
+    type Asset = Tweakfile;
+    type Settings = ();
+    type Error = TweakfileError;
+
     fn load<'a>(
         &'a self,
-        bytes: &'a [u8],
+        reader: &'a mut Reader,
+        settings: &'a Self::Settings,
         load_context: &'a mut LoadContext,
-    ) -> BoxedFuture<'a, Result<(), bevy::asset::Error>> {
+    ) -> BoxedFuture<'a, Result<Self::Asset, Self::Error>> {
         Box::pin(async move {
-            let s = std::str::from_utf8(bytes)?;
-            let custom_asset = toml::from_str::<Tweakfile>(s)?;
-            load_context.set_default_asset(LoadedAsset::new(custom_asset));
-            Ok(())
+            let mut bytes = Vec::new();
+            reader.read_to_end(&mut bytes).await?;
+            let s = std::str::from_utf8(bytes.as_slice())?;
+            toml::from_str::<Tweakfile>(s)?
         })
     }