好多新内容

Assets/scripts/gamePlay_gameplay/Note.cs

@@ -157,6 +157,13 @@ public class Note : BaseNote
             float.NaN);
     }
 
+    // 缓存本音符的实例ID字符串：GameObject 实例ID终身不变(池化复用也不变)，
+    // 缓存后避免每次判定/进出判定区都 GetInstanceID().ToString() 分配字符串(热路径 GC)。
+    private string _cachedId;
+    private string CachedId => _cachedId ?? (_cachedId = gameObject.GetInstanceID().ToString());
+    // 供 NoteController 等复用同一缓存id(避免它们各自再 ToString 分配)。
+    public string GetCachedInstanceId() => CachedId;
+
     private void Awake()
     {
         anim = AnimationController.Global;
@@ -207,7 +214,7 @@ public class Note : BaseNote
         // Release lock if we still hold it
         if (hasLock)
         {
-            TrackKeyManager.Instance?.UnlockTrackForJudge(TrackIndex, gameObject.GetInstanceID().ToString());
+            TrackKeyManager.Instance?.UnlockTrackForJudge(TrackIndex, CachedId);
             hasLock = false;
         }
     }
@@ -237,7 +244,7 @@ public class Note : BaseNote
     {
         if (isJudged) return;
 
-        string myId = gameObject.GetInstanceID().ToString();
+        string myId = CachedId;
 
         // Acquire the track lock to stay compatible with the existing single-judge-per-track invariants.
         bool locked = false;
@@ -322,7 +329,7 @@ public class Note : BaseNote
         if (isJudged || key != keyToPress)
             return;
 
-        string myId = gameObject.GetInstanceID().ToString();
+        string myId = CachedId;
 
         // Try to acquire lock for this note (prevents multiple notes on same track being judged at once)
         if (TrackKeyManager.Instance != null && !TrackKeyManager.Instance.TryLockTrackForJudge(TrackIndex, myId))
@@ -502,7 +509,7 @@ public class Note : BaseNote
         }
 
         // Remove from per-track queue immediately so following notes become head
-        string myId = gameObject.GetInstanceID().ToString();
+        string myId = CachedId;
         TrackKeyManager.Instance?.UnregisterKey(TrackIndex, myId);
 
         // Release lock if we held it
@@ -584,7 +591,7 @@ public class Note : BaseNote
         InputManager.OnKeyPressed -= HandlePress;
         
         // CRITICAL: Always release lock and unregister before deactivating
-        string myId = gameObject.GetInstanceID().ToString();
+        string myId = CachedId;
         
         // Release lock if we still hold it
         ReleaseTrackLock(myId);