UiActiveHeads can be a local player resource only

crates/hedz_reloaded/src/heads/heads_ui.rs

@@ -21,9 +21,9 @@ struct HeadImage(pub usize);
 #[reflect(Component)]
 struct HeadDamage(pub usize);
 
-#[derive(Component, Default, Reflect, Serialize, Deserialize, PartialEq)]
-#[reflect(Component)]
-pub struct UiActiveHeads {
+#[derive(Resource, Default, Reflect, Serialize, Deserialize, PartialEq)]
+#[reflect(Resource)]
+struct UiActiveHeads {
     heads: [Option<UiHeadState>; 5],
     selected_slot: usize,
 }
@@ -32,11 +32,10 @@ pub fn plugin(app: &mut App) {
     app.register_type::<HeadDamage>();
     app.register_type::<UiActiveHeads>();
 
+    app.init_resource::<UiActiveHeads>();
+
     app.add_systems(OnEnter(GameState::Playing), setup);
-    app.add_systems(
-        FixedUpdate,
-        sync.run_if(in_state(GameState::Playing).and(is_server)),
-    );
+    app.add_systems(FixedUpdate, sync.run_if(in_state(GameState::Playing)));
     #[cfg(feature = "client")]
     app.add_systems(
         FixedUpdate,
@@ -177,7 +176,7 @@ fn spawn_head_ui(
 
 #[cfg(feature = "client")]
 fn update(
-    res: Single<&UiActiveHeads>,
+    res: Res<UiActiveHeads>,
     heads_images: Res<HeadsImages>,
     mut head_image: Query<(&HeadImage, &mut Visibility, &mut ImageNode), Without<HeadSelector>>,
     mut head_selector: Query<(&HeadSelector, &mut Visibility), Without<HeadImage>>,
@@ -201,10 +200,14 @@ fn update(
 
 #[cfg(feature = "client")]
 fn update_ammo(
-    res: Single<&UiActiveHeads, Changed<UiActiveHeads>>,
+    res: Res<UiActiveHeads>,
     heads: Query<&HeadImage>,
     mut gradients: Query<(&mut BackgroundGradient, &ChildOf)>,
 ) {
+    if !res.is_changed() {
+        return;
+    }
+
     for (mut gradient, child_of) in gradients.iter_mut() {
         let Ok(HeadImage(head)) = heads.get(child_of.parent()) else {
             continue;
@@ -230,18 +233,18 @@ fn update_ammo(
 }
 
 #[cfg(feature = "client")]
-fn update_health(
-    res: Single<&UiActiveHeads, Changed<UiActiveHeads>>,
-    mut query: Query<(&mut Node, &HeadDamage)>,
-) {
-    for (mut node, HeadDamage(head)) in query.iter_mut() {
-        node.height = Val::Percent(res.heads[*head].map(|head| head.damage()).unwrap_or(0.) * 100.);
+fn update_health(res: Res<UiActiveHeads>, mut query: Query<(&mut Node, &HeadDamage)>) {
+    if res.is_changed() {
+        for (mut node, HeadDamage(head)) in query.iter_mut() {
+            node.height =
+                Val::Percent(res.heads[*head].map(|head| head.damage()).unwrap_or(0.) * 100.);
+        }
     }
 }
 
 fn sync(
     active_heads: Single<Ref<ActiveHeads>, With<LocalPlayer>>,
-    mut state: Single<&mut UiActiveHeads>,
+    mut state: ResMut<UiActiveHeads>,
     time: Res<Time>,
 ) {
     if active_heads.is_changed() || active_heads.reloading() {

crates/hedz_reloaded/src/player.rs

@@ -9,7 +9,7 @@ use crate::{
     global_observer,
     head::ActiveHead,
     head_drop::HeadDrops,
-    heads::{ActiveHeads, HeadChanged, HeadState, heads_ui::UiActiveHeads},
+    heads::{ActiveHeads, HeadChanged, HeadState},
     heads_database::HeadsDatabase,
     hitpoints::{Hitpoints, Kill},
     npc::SpawnCharacter,
@@ -96,7 +96,6 @@ pub fn spawn(
             ),
             Backpack::default(),
             BackpackUiState::default(),
-            UiActiveHeads::default(),
             Inputs::default(),
             Replicated,
         ))

crates/hedz_reloaded/src/protocol/mod.rs

@@ -16,7 +16,7 @@ use crate::{
     cutscene::StartCutscene,
     global_observer,
     head::ActiveHead,
-    heads::{ActiveHeads, heads_ui::UiActiveHeads},
+    heads::ActiveHeads,
     hitpoints::Hitpoints,
     npc::Npc,
     platforms::ActivePlatform,
@@ -107,7 +107,6 @@ pub fn plugin(app: &mut App) {
         .replicate::<SquishAnimation>()
         .replicate_once::<Transform>()
         .replicate_once::<SpawnTrail>()
-        .replicate::<UiActiveHeads>()
         .replicate_as::<Visibility, SerVisibility>();
 
     app.replicate_once::<ThrownProjectile>()