1

Assets/MyGame/Scripts/Turret/SitPosData.cs

@@ -1427,6 +1427,10 @@ public class SitPosData : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
             currentTurret = null;
         }
 
+        // ⭐ 换炮台：释放上一个炮台的按需引用（引用归零才真正卸包；同编号不释放）
+        if (currentTurretNumber > 0 && currentTurretNumber != turretNumber)
+            TurretResourcesData.ReleaseTurretPrefab(currentTurretNumber);
+
         currentTurretNumber = turretNumber;
 
         // ⭐ 散包按需加载：缓存没有时异步取（PT{编号} 标签），完成后实例化
@@ -1435,12 +1439,14 @@ public class SitPosData : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
 
     /// <summary>炮台加载序号（防加载期间再次切换的竞态）</summary>
     private int _turretLoadSeq = 0;
+    /// <summary>当前按需加载的翅膀编号（换翅膀/卸下时释放引用）</summary>
+    private int _currentWingNumber = 0;
 
     /// <summary>炮台异步按需加载协程：AcquireTurretPrefabAsync 完成后实例化（原同步逻辑后半段）</summary>
     private IEnumerator LoadTurretRoutine(int turretNumber, int seq)
     {
-        GameObject prefab = TurretResourcesData.GetTurretPrefab(turretNumber);
-        if (prefab == null)
+        // ⭐ 每次都走 Acquire（缓存命中立即返回并正确 +1 引用，多座位共用同一炮台不会互相误卸）
+        GameObject prefab = null;
         {
             var task = TurretResourcesData.AcquireTurretPrefabAsync(turretNumber);
             while (!task.IsCompleted) yield return null;
@@ -1608,10 +1614,21 @@ public class SitPosData : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
         // turretNumber<=0 = 卸下（与战神同一约定）：只清理不加载，不打警告
         if (turretNumber <= 0)
         {
+            // ⭐ 卸下翅膀：释放按需引用
+            if (_currentWingNumber > 0)
+            {
+                TurretResourcesData.ReleaseTurretPrefab(_currentWingNumber);
+                _currentWingNumber = 0;
+            }
             ClearWing();
             return;
         }
 
+        // ⭐ 换翅膀：释放上一个的按需引用（引用归零才真正卸包）
+        if (_currentWingNumber > 0 && _currentWingNumber != turretNumber)
+            TurretResourcesData.ReleaseTurretPrefab(_currentWingNumber);
+        _currentWingNumber = turretNumber;
+
         // 先清理已有翅膀
         ClearWing();
 
@@ -1622,8 +1639,8 @@ public class SitPosData : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
     /// <summary>翅膀异步按需加载协程（模式同炮台：seq 防竞态）</summary>
     private IEnumerator LoadWingRoutine(int turretNumber, int seq)
     {
-        GameObject prefab = TurretResourcesData.GetTurretPrefab(turretNumber);
-        if (prefab == null)
+        // ⭐ 每次都走 Acquire（缓存命中立即返回并正确 +1 引用）
+        GameObject prefab = null;
         {
             var task = TurretResourcesData.AcquireTurretPrefabAsync(turretNumber);
             while (!task.IsCompleted) yield return null;