diff --git a/Assets/Scripts/Environment/SkyUpdatement.cs b/Assets/Scripts/Environment/SkyUpdatement.cs
index 870e000..657fb4f 100644
--- a/Assets/Scripts/Environment/SkyUpdatement.cs
+++ b/Assets/Scripts/Environment/SkyUpdatement.cs
@@ -73,5 +73,16 @@ namespace Demo.Game
         {
             ManualAddEntry(time, sky, default);
         }
+
+        /// <summary>
+        /// 在指定时刻切换天空
+        /// </summary>
+        /// <param name="time"></param>
+        /// <param name="sky"></param>
+        [Convention.RScript.Variable.Attr.Method]
+        public void Add(float time, string sky)
+        {
+            ManualAddEntry(time, sky, default);
+        }
     }
 }
diff --git a/Assets/Scripts/Framework/GameContent/GameController.cs b/Assets/Scripts/Framework/GameContent/GameController.cs
index 10eb149..22e9e02 100644
--- a/Assets/Scripts/Framework/GameContent/GameController.cs
+++ b/Assets/Scripts/Framework/GameContent/GameController.cs
@@ -364,7 +364,8 @@ namespace Demo.Game
             }
             finally
             {
-                Destroy(MainObject.gameObject);
+                if (MainObject)
+                    Destroy(MainObject.gameObject);
                 if (Editor.EditorController.instance.MainGameController == this)
                 {
                     Editor.EditorController.instance.MainGameController = null;
diff --git a/Assets/Scripts/Framework/Updatement.cs b/Assets/Scripts/Framework/Updatement.cs
index 2bc3d67..5e2add9 100644
--- a/Assets/Scripts/Framework/Updatement.cs
+++ b/Assets/Scripts/Framework/Updatement.cs
@@ -30,16 +30,27 @@ namespace Demo.Game
         /// <param name="time"></param>
         /// <param name="position"></param>
         /// <param name="curveType"></param>
-        public void ManualAddEntry(string time, DataType position, MathExtension.EaseCurveType curveType)
+        public void ManualAddEntry(float time, DataType position, MathExtension.EaseCurveType curveType)
         {
             Entries.Add(new()
             {
-                TimePoint = Parse(time),
+                TimePoint = time,
                 Position = position,
                 easeCurveType = curveType
             });
         }
 
+        /// <summary>
+        /// 添加数据
+        /// </summary>
+        /// <param name="time"></param>
+        /// <param name="position"></param>
+        /// <param name="curveType"></param>
+        public void ManualAddEntry(string time, DataType position, MathExtension.EaseCurveType curveType)
+        {
+            ManualAddEntry(time, position, curveType);
+        }
+
         private void UpdateEntry(int start, float percent)
         {
             UpdatementEntry head = Entries[start], tail = Entries[Mathf.Min(start + 1, Entries.Count - 1)];