备份，准备做双端

Assets/scripts/_runtimecache/PlayerSkillService.cs

@@ -34,6 +34,11 @@ public sealed class PlayerSkillService : MonoBehaviour
 
     public static PlayerSkillService Instance { get; private set; }
 
+    // Monotonic counter bumped whenever the selected skill (and thus any skill-derived
+    // scene state) may have changed. Per-frame consumers can compare against a cached copy
+    // to skip re-evaluation while the selection is stable.
+    public static int SelectionVersion { get; private set; }
+
     private bool initialized;
     private PlayerSkillSaveData saveData;
     private userLevel_skills_SO registeredSkillAsset;
@@ -467,6 +472,10 @@ public sealed class PlayerSkillService : MonoBehaviour
 
     private void ApplySceneBindings()
     {
+        // Selection-derived scene state is being (re)applied here; advance the version so
+        // per-frame consumers know to re-read it once.
+        SelectionVersion++;
+
         bool revealLockedSkills = IsSkillEnabledInternal(RevealLockedIdolSkillsSkillIndex);
 
         idolSkillsHub[] hubs = FindObjectsByType<idolSkillsHub>(FindObjectsInactive.Include, FindObjectsSortMode.None);
@@ -599,6 +608,9 @@ public sealed class PlayerSkillService : MonoBehaviour
         }
 
         saveData.selectedSkillIndex = enabledIndex;
+        // Selection was repaired from the asset's enabled flags without going through
+        // ApplySceneBindings; bump the version so per-frame consumers re-read it.
+        SelectionVersion++;
         SaveNow();
     }