Small question

Signed-off-by: TRAfoer <lhf190@outlook.com>

Assets/Scripts/Manager/NoteManager.cs

@@ -22,38 +22,31 @@ namespace Ichni.RhythmGame
             pendingNotes.Sort((a, b) => a.activationTime.CompareTo(b.activationTime));
         }
 
-        void LateUpdate()
+        void Update()
         {
-            List<(NoteBase note, float activationTime, float finishTime)> toRemove = new List<(NoteBase, float, float)>();
-            foreach ((NoteBase note, float activationTime, float finishTime) in pendingNotes)
+
+            float currentTime = EditorManager.instance.songInformation.songTime;
+
+            // 一次性移除所有 null 项
+            pendingNotes.RemoveAll(item => item.note == null);
+
+            foreach (var item in pendingNotes)
             {
-                if (note == null)
-                {
-                    toRemove.Add((note, activationTime, finishTime));
-                    continue;
-                }
-                if (EditorManager.instance.songInformation.songTime >= activationTime &&
-                    EditorManager.instance.songInformation.songTime <= finishTime)
-                {
-                    if (!note.gameObject.activeSelf)
-                    {
+                var (note, activationTime, finishTime) = item;
+                bool shouldBeActive = currentTime >= activationTime && currentTime <= finishTime;
+                bool isActive = note.gameObject.activeSelf;
 
-                        note.gameObject.SetActive(true);
-                    }
-                }
-                else
+                if (shouldBeActive && !isActive)
+                {
+                    note.gameObject.SetActive(true);
+                }
+                else if (!shouldBeActive && isActive)
                 {
-                    if (note.gameObject.activeSelf)
-                    {
-                        note.gameObject.SetActive(false);
 
-                    }
+                    note.gameObject.SetActive(false);
                 }
             }
-            for (int i = toRemove.Count - 1; i >= 0; i--)
-            {
-                pendingNotes.Remove(toRemove[i]);
-            }
+
 
         }
     }