fix(timeline-kit): Addressable Timeline 恢复改为可等待协程

Assets/Scripts/SceneManagement/TimelineKit/DirectorHandler.cs

@@ -454,12 +454,12 @@ namespace AibisDream
             return entry;
         }
 
-        public void RestoreSnapshotEntry(TimelineEntrySnapshotDto entry)
+        public IEnumerator RestoreSnapshotEntryAsync(TimelineEntrySnapshotDto entry)
         {
-            if (entry == null) return;
+            if (entry == null) yield break;
 
             gameObject.SetActive(entry.isActive);
-            if (!entry.isActive || director == null) return;
+            if (!entry.isActive || director == null) yield break;
 
             if (!Enum.TryParse<TimelinePlaybackPhase>(entry.phase, out var phase))
             {
@@ -474,7 +474,7 @@ namespace AibisDream
                 case TimelinePlaybackPhase.AtEnd:
                     if (!string.IsNullOrEmpty(entry.loadedAddressableKey))
                     {
-                        StartCoroutine(RestoreAtEndFromAddressable(entry.loadedAddressableKey));
+                        yield return RestoreAtEndFromAddressable(entry.loadedAddressableKey);
                     }
                     else
                     {
@@ -504,10 +504,63 @@ namespace AibisDream
 
         private IEnumerator RestoreAtEndFromAddressable(string addressableKey)
         {
-            yield return PlayFromAddressableCoroutine(addressableKey, null);
+            yield return LoadAddressablePlayable(addressableKey);
             RestoreAtEndLocal();
         }
 
+        private IEnumerator LoadAddressablePlayable(string addressableKey)
+        {
+            if (director == null)
+            {
+                Debug.LogError($"DirectorHandler {timelineName}: PlayableDirector is null");
+                yield break;
+            }
+
+            if (string.IsNullOrEmpty(addressableKey))
+            {
+                Debug.LogError($"DirectorHandler {timelineName}: addressableKey is null or empty");
+                yield break;
+            }
+
+            ReleaseAddressableHandle();
+
+            var loadKey = TimelinePrefix + addressableKey;
+            _lastAddressableKey = addressableKey;
+            PlayableAsset loadedAsset = null;
+            AsyncOperationHandle<PlayableAsset> loadedHandle = default;
+            var loadDone = false;
+
+            ResourceKit.LoadAssetAsyncWithHandle<PlayableAsset>(loadKey, handle =>
+            {
+                loadedHandle = handle;
+                if (handle.Status == AsyncOperationStatus.Succeeded)
+                {
+                    loadedAsset = handle.Result;
+                }
+
+                loadDone = true;
+            });
+
+            yield return new WaitUntil(() => loadDone);
+
+            if (loadedAsset == null)
+            {
+                Debug.LogError($"DirectorHandler {timelineName}: Failed to load PlayableAsset '{loadKey}'");
+                yield break;
+            }
+
+            CancelPendingResetToStartCoroutine();
+            director.stopped -= OnDirectorStopped;
+            director.Stop();
+
+            _savedPlayableAsset = director.playableAsset;
+            director.playableAsset = loadedAsset;
+            director.RebuildGraph();
+            AutoBindCinemachineBrain();
+
+            _addressableHandle = loadedHandle;
+        }
+
         /// <summary>
         /// 获取当前播放时间
         /// </summary>

Assets/Scripts/SceneManagement/TimelineKit/TimelineCenter.cs

@@ -242,9 +242,9 @@ namespace AibisDream
             return dto;
         }
 
-        public void RestoreSnapshot(TimelineSnapshotDto dto)
+        public IEnumerator RestoreSnapshotAsync(TimelineSnapshotDto dto)
         {
-            if (dto?.entries == null) return;
+            if (dto?.entries == null) yield break;
 
             foreach (var entry in dto.entries)
             {
@@ -253,7 +253,7 @@ namespace AibisDream
                     continue;
                 }
 
-                handler.RestoreSnapshotEntry(entry);
+                yield return handler.RestoreSnapshotEntryAsync(entry);
             }
         }
     }