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Assets/MyGame/Scripts/Characters/Monster/MonsterContral.cs

@@ -354,6 +354,11 @@ public class MonsterContral : MonoBehaviour
             _cachedChild = null;
         }
 
+        // ⭐ 2D鱼：重置渲染器缓存（池回收后子层级可能变化）并重新应用sortingOrder层级
+        _cached2DRenderers = null;
+        _appliedSortOrder = int.MinValue;
+        Apply2DOrder();
+
         // ⭐ 池回收的鱼(isInitialized=false)不立即 ChangeState(move),
         //   避免 OnMoveUpdata 用旧 moveTime/moveLine 误触发 Id_DieFish_NotFX
         //   Init 调用后会设置 isInitialized=true 并 ChangeState(move)
@@ -788,6 +793,51 @@ public class MonsterContral : MonoBehaviour
     }
     public bool ischild0 = false;
     public int depthOffset;
+
+    // ----------------------------------------------------------------
+    // ⭐ 2D层级（2D鱼用，与3D鱼的z轴depthOffset深度兼容并存）
+    // ----------------------------------------------------------------
+
+    [Header("2D层级(2D鱼)")]
+    [Tooltip("是否为2D渲染鱼：用sortingOrder控制层级（3D鱼继续用z轴depthOffset深度，互不影响）")]
+    public bool is2DFish = false;
+    [Tooltip("2D鱼的sortingOrder层级值，运行时可调 Set2DOrder(int) 修改")]
+    public int sortOrder2D = 0;
+
+    /// <summary>2D鱼渲染器缓存（设置sortingOrder用，OnEnable重建，避免重复GetComponentsInChildren）</summary>
+    private Renderer[] _cached2DRenderers;
+    /// <summary>已应用的sortingOrder值（值未变化时跳过重复设置）</summary>
+    private int _appliedSortOrder = int.MinValue;
+
+    /// <summary>
+    /// 设置2D层级（sortingOrder）。对鱼身上所有渲染器统一生效，
+    /// 多渲染器按层级顺序依次 +1 递增，保持鱼内部前后遮挡关系不变。
+    /// 仅 is2DFish=true 时生效；3D鱼仍走 z 轴 depthOffset，兼容现有逻辑。
+    /// </summary>
+    public void Set2DOrder(int order)
+    {
+        sortOrder2D = order;
+        Apply2DOrder();
+    }
+
+    /// <summary>应用sortingOrder到全部子渲染器（值相同则跳过）</summary>
+    private void Apply2DOrder()
+    {
+        if (!is2DFish) return;
+        if (_appliedSortOrder == sortOrder2D) return;
+
+        if (_cached2DRenderers == null)
+            _cached2DRenderers = GetComponentsInChildren<Renderer>(true);
+
+        _appliedSortOrder = sortOrder2D;
+        for (int i = 0; i < _cached2DRenderers.Length; i++)
+        {
+            var r = _cached2DRenderers[i];
+            if (r != null)
+                r.sortingOrder = sortOrder2D + i;
+        }
+    }
+
     // ================================================================
     // 动画
     // ================================================================