allow controlling volume for sound/music

crates/hedz_reloaded/src/client/setup.rs

@@ -1,10 +1,5 @@
-use crate::{DebugVisuals, GameState, camera::MainCamera, loading_assets::AudioAssets};
-use bevy::{
-    audio::{PlaybackMode, Volume},
-    core_pipeline::tonemapping::Tonemapping,
-    prelude::*,
-    render::view::ColorGrading,
-};
+use crate::{DebugVisuals, camera::MainCamera};
+use bevy::{core_pipeline::tonemapping::Tonemapping, prelude::*, render::view::ColorGrading};
 use bevy_trenchbroom::TrenchBroomServer;
 
 pub fn plugin(app: &mut App) {
@@ -21,36 +16,11 @@ pub fn plugin(app: &mut App) {
         ..Default::default()
     });
     app.insert_resource(ClearColor(Color::BLACK));
-    //TODO: let user control this
-    app.insert_resource(GlobalVolume::new(Volume::Linear(0.4)));
 
     app.add_systems(Startup, write_trenchbroom_config);
-    app.add_systems(OnEnter(GameState::Playing), music);
     app.add_systems(Update, (set_materials_unlit, set_tonemapping, set_shadows));
 }
 
-fn music(assets: Res<AudioAssets>, mut commands: Commands) {
-    commands.spawn((
-        Name::new("sfx-music"),
-        AudioPlayer::new(assets.music.clone()),
-        PlaybackSettings {
-            mode: PlaybackMode::Loop,
-            volume: Volume::Linear(0.6),
-            ..default()
-        },
-    ));
-
-    commands.spawn((
-        Name::new("sfx-ambient"),
-        AudioPlayer::new(assets.ambient.clone()),
-        PlaybackSettings {
-            mode: PlaybackMode::Loop,
-            volume: Volume::Linear(0.8),
-            ..default()
-        },
-    ));
-}
-
 fn write_trenchbroom_config(server: Res<TrenchBroomServer>, type_registry: Res<AppTypeRegistry>) {
     if let Err(e) = server
         .config