存档完善和修复

Assets/_Game/Scripts/World/DeathShadeManager.cs

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+using UnityEngine;
+using UnityEngine.SceneManagement;
+using BaseGames.Core;
+using BaseGames.Core.Events;
+using BaseGames.Core.Save;
+
+namespace BaseGames.World
+{
+    /// <summary>
+    /// 管理死亡遗骸（Death Shade）的生命周期与持久化。
+    ///
+    /// 挂载位置：Persistent 场景的根 GameObject（DontDestroyOnLoad）。
+    ///
+    /// 流程：
+    ///   玩家死亡  → OnPlayerDied：记录死亡位置与灵珠量，在当前场景生成遗骸。
+    ///   切换场景  → OnSceneLoaded：若新场景即遗骸所在场景，自动生成遗骸。
+    ///   回收遗骸  → OnShadeCollected：清除待存储的遗骸数据。
+    ///   存档      → OnSave：将遗骸数据（null = 无遗骸）写入 SaveData.Player.DeathShade。
+    ///   读档      → OnLoad：从 SaveData 恢复遗骸数据；实际 GameObject 在下次进入该场景时生成。
+    /// </summary>
+    public class DeathShadeManager : SaveableMonoBehaviour
+    {
+        [SerializeField] private DeathShade           _shadePrefab;
+        [SerializeField] private VoidEventChannelSO   _onPlayerDied;
+        [SerializeField] private StringEventChannelSO _onShadeCollected;
+
+        private DeathShadeSaveData _pendingSave;
+        private DeathShade         _activeShade;
+
+        private readonly CompositeDisposable _subs = new();
+
+        protected override void OnEnable()
+        {
+            base.OnEnable();
+            _onPlayerDied?    .Subscribe(OnPlayerDied)    .AddTo(_subs);
+            _onShadeCollected?.Subscribe(OnShadeCollected).AddTo(_subs);
+            SceneManager.sceneLoaded += OnSceneLoaded;
+        }
+
+        protected override void OnDisable()
+        {
+            base.OnDisable();
+            _subs.Clear();
+            SceneManager.sceneLoaded -= OnSceneLoaded;
+        }
+
+        private void OnPlayerDied()
+        {
+            var playerGo = GameObject.FindWithTag("Player");
+            if (playerGo == null) return;
+
+            int    lingZhu = playerGo.GetComponent<ILingZhuProvider>()?.CurrentLingZhu ?? 0;
+            var    pos     = (Vector2)playerGo.transform.position;
+            string sceneId = SceneManager.GetActiveScene().name;
+
+            if (_activeShade != null)
+            {
+                Destroy(_activeShade.gameObject);
+                _activeShade = null;
+            }
+
+            _pendingSave = new DeathShadeSaveData
+            {
+                PosX          = pos.x,
+                PosY          = pos.y,
+                SceneId       = sceneId,
+                LingZhuAmount = lingZhu,
+            };
+
+            TrySpawnShade(sceneId);
+        }
+
+        private void OnSceneLoaded(Scene scene, LoadSceneMode _)
+        {
+            _activeShade = null; // 前一场景的 GameObject 已被 Unity 卸载
+            TrySpawnShade(scene.name);
+        }
+
+        private void TrySpawnShade(string sceneName)
+        {
+            if (_shadePrefab == null || _pendingSave == null) return;
+            if (_pendingSave.SceneId != sceneName) return;
+
+            _activeShade = Instantiate(_shadePrefab);
+            _activeShade.Initialize(
+                _pendingSave.LingZhuAmount,
+                _pendingSave.SceneId,
+                new Vector2(_pendingSave.PosX, _pendingSave.PosY));
+        }
+
+        private void OnShadeCollected(string _)
+        {
+            _pendingSave = null;
+            _activeShade = null;
+        }
+
+        public override void OnSave(SaveData data)
+        {
+            data.Player.DeathShade = _pendingSave;
+        }
+
+        public override void OnLoad(SaveData data)
+        {
+            if (_activeShade != null)
+            {
+                Destroy(_activeShade.gameObject);
+                _activeShade = null;
+            }
+            _pendingSave = data.Player.DeathShade;
+            // 遗骸 GameObject 将在 OnSceneLoaded 中按需生成
+        }
+    }
+}