备份，准备做双端

Assets/scripts/gamePlay_gameplay/effectEventController.cs

@@ -71,6 +71,10 @@ public class effectEventController : MonoBehaviour
 
     // 门控：漂移关闭且已归位后，跳过每帧的 Perlin/缓存查找；开关切换时才归位一次。
     private bool _driftResetDone;
+    // Last PlayerSkillService.SelectionVersion this controller applied its camera offset for.
+    // While it matches the current version (and the pivot is already resolved), the offset
+    // cannot change, so we skip the per-frame IsSkillEnabled traversal + localPosition write.
+    private int _appliedSkillSelectionVersion = -1;
 
     private void Update()
     {
@@ -86,7 +90,13 @@ public class effectEventController : MonoBehaviour
             _driftResetDone = true;
         }
 
-        UpdatePlayerSkillCameraOffset();
+        // The camera offset only depends on the selected skill. Re-evaluate it once per
+        // selection change; while the version is unchanged and the pivot is resolved, the
+        // result is identical, so we can skip the work entirely.
+        if (cachedCameraSkillPivot == null || _appliedSkillSelectionVersion != PlayerSkillService.SelectionVersion)
+        {
+            UpdatePlayerSkillCameraOffset();
+        }
     }
 
     private void CacheShakeTarget()
@@ -378,6 +388,10 @@ public class effectEventController : MonoBehaviour
         if (cachedCameraSkillPivot == null)
             return;
 
+        // Pivot is resolved; mark this selection version as applied so Update can skip
+        // subsequent frames until the selection changes again.
+        _appliedSkillSelectionVersion = PlayerSkillService.SelectionVersion;
+
         Vector3 targetLocalPosition = cameraSkillBaseLocalPosition;
         if (PlayerSkillService.IsSkillEnabled(10))
         {
@@ -472,8 +486,12 @@ public class effectEventController : MonoBehaviour
         if (shake.timeSettings.fadeOutCurve == null || shake.timeSettings.fadeOutCurve.length == 0)
             shake.timeSettings.fadeOutCurve = AnimationCurve.Linear(0f, 1f, 1f, 0f);
 
-        shake.shakers = new[] { shake.positionShake, shake.rotationShake };
-        shake.sum = new Vector3[2];
+        // 复用已同步的内部数组(通常 PrewarmShakeComponent 已建好),仅在缺失/尺寸不符时重建,
+        // 避免每次多押命中都分配两个数组。
+        if (shake.shakers == null || shake.shakers.Length != 2)
+            shake.shakers = new[] { shake.positionShake, shake.rotationShake };
+        if (shake.sum == null || shake.sum.Length != 2)
+            shake.sum = new Vector3[2];
         shake.StartShake();
     }