diff --git a/data/levelGraphs/test.yaml b/data/levelGraphs/test.yaml
index b3b1f4f..da1d6b5 100644
--- a/data/levelGraphs/test.yaml
+++ b/data/levelGraphs/test.yaml
@@ -3,22 +3,22 @@ connection_data_list:
     to_id: 4ae948ea-82b7-4b2d-bec2-19ed8a9d4c03
     from_port: 0
     to_port: 0
-  - from_id: 4ae948ea-82b7-4b2d-bec2-19ed8a9d4c03
-    to_id: ba32e05c-0c80-4a79-b5ce-5b8150400e05
-    from_port: 0
-    to_port: 0
-  - from_id: 4ae948ea-82b7-4b2d-bec2-19ed8a9d4c03
-    to_id: 8b3d645a-96c0-407e-871d-6f4a0b69557b
-    from_port: 0
-    to_port: 0
-  - from_id: 8b3d645a-96c0-407e-871d-6f4a0b69557b
-    to_id: 7e3ae680-3d7e-4ae9-b82f-5bfbe1c2f613
-    from_port: 0
-    to_port: 0
-  - from_id: ba32e05c-0c80-4a79-b5ce-5b8150400e05
-    to_id: 7e3ae680-3d7e-4ae9-b82f-5bfbe1c2f613
-    from_port: 0
-    to_port: 0
+#  - from_id: 4ae948ea-82b7-4b2d-bec2-19ed8a9d4c03
+#    to_id: ba32e05c-0c80-4a79-b5ce-5b8150400e05
+#    from_port: 0
+#    to_port: 0
+#  - from_id: 4ae948ea-82b7-4b2d-bec2-19ed8a9d4c03
+#    to_id: 8b3d645a-96c0-407e-871d-6f4a0b69557b
+#    from_port: 0
+#    to_port: 0
+#  - from_id: 8b3d645a-96c0-407e-871d-6f4a0b69557b
+#    to_id: 7e3ae680-3d7e-4ae9-b82f-5bfbe1c2f613
+#    from_port: 0
+#    to_port: 0
+#  - from_id: ba32e05c-0c80-4a79-b5ce-5b8150400e05
+#    to_id: 7e3ae680-3d7e-4ae9-b82f-5bfbe1c2f613
+#    from_port: 0
+#    to_port: 0
 room_node_data_list:
   - id: c0255eb6-2c75-44f7-9058-0921fe8fb0d8
     title: 起点房间
diff --git a/scripts/loader/sceneLoader/GameSceneLoader.cs b/scripts/loader/sceneLoader/GameSceneLoader.cs
index f433c7d..8d1d4b3 100644
--- a/scripts/loader/sceneLoader/GameSceneLoader.cs
+++ b/scripts/loader/sceneLoader/GameSceneLoader.cs
@@ -15,82 +15,82 @@ namespace ColdMint.scripts.loader.sceneLoader;
 /// </summary>
 public partial class GameSceneLoader : SceneLoaderTemplate
 {
-    private Label? _seedLabel;
+	private Label? _seedLabel;
 
-    public override Task InitializeData()
-    {
-        //Loading the blood bar scene
-        //加载血条场景
-        var healthBarUi = GetNode<HealthBarUi>("CanvasLayer/Control/VBoxContainer/HealthBarUi");
-        GameSceneNodeHolder.HealthBarUi = healthBarUi;
-        //Load HotBar
-        //加载HotBar
-        var hotBar = GetNode<HotBar>("CanvasLayer/Control/VBoxContainer/HotBar");
-        GameSceneNodeHolder.HotBar = hotBar;
-        //Backpack Ui container
-        //背包Ui容器
-        var backpackUiContainer = GetNode<Control>("CanvasLayer/BackpackUIContainer");
-        GameSceneNodeHolder.BackpackUiContainer = backpackUiContainer;
-        //Load operation prompt
-        //加载操作提示
-        var operationTip = GetNode<RichTextLabel>("CanvasLayer/Control/VBoxContainer/OperationTip");
-        GameSceneNodeHolder.OperationTipLabel = operationTip;
-        //Loaded weapon container
-        //加载武器容器
-        var weaponContainer = GetNode<Node2D>("WeaponContainer");
-        GameSceneNodeHolder.WeaponContainer = weaponContainer;
-        //Load Packsack container
-        //加载背包容器
-        var packsackContainer = GetNode<Node2D>("PacksackContainer");
-        GameSceneNodeHolder.PacksackContainer = packsackContainer;
-        //Load AICharacter container
-        //加载AICharacter容器
-        var aiCharacterContainer = GetNode<Node2D>("AICharacterContainer");
-        GameSceneNodeHolder.AiCharacterContainer = aiCharacterContainer;
-        //Load player container
-        //加载玩家容器
-        var playerContainer = GetNode<Node2D>("PlayerContainer");
-        GameSceneNodeHolder.PlayerContainer = playerContainer;
-        return Task.CompletedTask;
-    }
+	public override Task InitializeData()
+	{
+		//Loading the blood bar scene
+		//加载血条场景
+		var healthBarUi = GetNode<HealthBarUi>("CanvasLayer/Control/VBoxContainer/HealthBarUi");
+		GameSceneNodeHolder.HealthBarUi = healthBarUi;
+		//Load HotBar
+		//加载HotBar
+		var hotBar = GetNode<HotBar>("CanvasLayer/Control/VBoxContainer/HotBar");
+		GameSceneNodeHolder.HotBar = hotBar;
+		//Backpack Ui container
+		//背包Ui容器
+		var backpackUiContainer = GetNode<Control>("CanvasLayer/BackpackUIContainer");
+		GameSceneNodeHolder.BackpackUiContainer = backpackUiContainer;
+		//Load operation prompt
+		//加载操作提示
+		var operationTip = GetNode<RichTextLabel>("CanvasLayer/Control/VBoxContainer/OperationTip");
+		GameSceneNodeHolder.OperationTipLabel = operationTip;
+		//Loaded weapon container
+		//加载武器容器
+		var weaponContainer = GetNode<Node2D>("WeaponContainer");
+		GameSceneNodeHolder.WeaponContainer = weaponContainer;
+		//Load Packsack container
+		//加载背包容器
+		var packsackContainer = GetNode<Node2D>("PacksackContainer");
+		GameSceneNodeHolder.PacksackContainer = packsackContainer;
+		//Load AICharacter container
+		//加载AICharacter容器
+		var aiCharacterContainer = GetNode<Node2D>("AICharacterContainer");
+		GameSceneNodeHolder.AiCharacterContainer = aiCharacterContainer;
+		//Load player container
+		//加载玩家容器
+		var playerContainer = GetNode<Node2D>("PlayerContainer");
+		GameSceneNodeHolder.PlayerContainer = playerContainer;
+		return Task.CompletedTask;
+	}
 
-    public override async Task LoadScene()
-    {
-        var debugMode = Config.IsDebug();
-        var recreateMapButton = GetNodeOrNull<Button>("CanvasLayer/Control/RecreateMapButton");
-        if (recreateMapButton != null)
-        {
-            recreateMapButton.Visible = debugMode;
-            recreateMapButton.Pressed += () => { _ = GenerateMap(); };
-        }
+	public override async Task LoadScene()
+	{
+		var debugMode = Config.IsDebug();
+		var recreateMapButton = GetNodeOrNull<Button>("CanvasLayer/Control/RecreateMapButton");
+		if (recreateMapButton != null)
+		{
+			recreateMapButton.Visible = debugMode;
+			recreateMapButton.Pressed += () => { _ = GenerateMap(); };
+		}
 
-        _seedLabel = GetNodeOrNull<Label>("CanvasLayer/Control/SeedLabel");
-        if (_seedLabel != null)
-        {
-            _seedLabel.Visible = debugMode;
-        }
+		_seedLabel = GetNodeOrNull<Label>("CanvasLayer/Control/SeedLabel");
+		if (_seedLabel != null)
+		{
+			_seedLabel.Visible = debugMode;
+		}
 
-        MapGenerator.MapRoot = GetNode<Node>("MapRoot");
-        MapGenerator.LayoutStrategy = new TestLayoutStrategy();
-        MapGenerator.LayoutParsingStrategy = new SequenceLayoutParsingStrategy();
-        MapGenerator.RoomPlacementStrategy = new PatchworkRoomPlacementStrategy();
-        await GenerateMap();
-    }
+		MapGenerator.MapRoot = GetNode<Node>("MapRoot");
+		MapGenerator.LayoutStrategy = new TestLayoutStrategy();
+		MapGenerator.LayoutParsingStrategy = new SequenceLayoutParsingStrategy();
+		MapGenerator.RoomPlacementStrategy = new PatchworkRoomPlacementStrategy();
+		await GenerateMap();
+	}
 
-    /// <summary>
-    /// <para>Generate map</para>
-    /// <para>生成地图</para>
-    /// </summary>
-    private async Task GenerateMap()
-    {
-        MapGenerator.Seed = GuidUtils.GetGuid();
-        if (_seedLabel != null)
-        {
-            //If you have a seedLabel, then set the seed to it.
-            //如果有seedLabel，那么将种子设置上去。
-            var seedInfo = TranslationServerUtils.TranslateWithFormat("ui_seed_info", MapGenerator.Seed);
-            _seedLabel.Text = seedInfo ?? $"Seed: {MapGenerator.Seed}";
-        }
-        await MapGenerator.GenerateMap();
-    }
-}
\ No newline at end of file
+	/// <summary>
+	/// <para>Generate map</para>
+	/// <para>生成地图</para>
+	/// </summary>
+	private async Task GenerateMap()
+	{
+		MapGenerator.Seed = GuidUtils.GetGuid();
+		if (_seedLabel != null)
+		{
+			//If you have a seedLabel, then set the seed to it.
+			//如果有seedLabel，那么将种子设置上去。
+			var seedInfo = TranslationServerUtils.TranslateWithFormat("ui_seed_info", MapGenerator.Seed);
+			_seedLabel.Text = seedInfo ?? $"Seed: {MapGenerator.Seed}";
+		}
+		await MapGenerator.GenerateMap();
+	}
+}
diff --git a/scripts/loader/uiLoader/SplashScreenLoader.cs b/scripts/loader/uiLoader/SplashScreenLoader.cs
index b80687a..4e86d6e 100644
--- a/scripts/loader/uiLoader/SplashScreenLoader.cs
+++ b/scripts/loader/uiLoader/SplashScreenLoader.cs
@@ -20,100 +20,100 @@ namespace ColdMint.scripts.loader.uiLoader;
 /// </summary>
 public partial class SplashScreenLoader : UiLoaderTemplate
 {
-    private Label? _loadingLabel;
-    private PackedScene? _mainMenuScene;
-    private AnimationPlayer? _animationPlayer;
-    private string _startup = "startup";
-    private Label? _nameLabel;
+	private Label? _loadingLabel;
+	private PackedScene? _mainMenuScene;
+	private AnimationPlayer? _animationPlayer;
+	private string _startup = "startup";
+	private Label? _nameLabel;
 
-    public override void InitializeData()
-    {
-        _mainMenuScene = GD.Load<PackedScene>("res://scenes/mainMenu.tscn");
-    }
+	public override void InitializeData()
+	{
+		_mainMenuScene = GD.Load<PackedScene>("res://scenes/mainMenu.tscn");
+	}
 
-    public override void InitializeUi()
-    {
-        _nameLabel = GetNode<Label>("NameLabel");
-        _loadingLabel = GetNode<Label>("loadingStateLabel");
-        _animationPlayer = GetNode<AnimationPlayer>("AnimationPlayer");
-        //Disable animation in Debug mode.
-        //在Debug模式禁用动画。
-        if (Config.IsDebug())
-        {
-            _loadingLabel.Modulate = Colors.White;
-            _nameLabel.Modulate = Colors.White;
-            AnimationFinished(_startup);
-        }
-        else
-        {
-            _animationPlayer.Play(_startup);
-            _animationPlayer.AnimationFinished += AnimationFinished;
-        }
-    }
+	public override void InitializeUi()
+	{
+		_nameLabel = GetNode<Label>("NameLabel");
+		_loadingLabel = GetNode<Label>("loadingStateLabel");
+		_animationPlayer = GetNode<AnimationPlayer>("AnimationPlayer");
+		//Disable animation in Debug mode.
+		//在Debug模式禁用动画。
+		if (Config.IsDebug())
+		{
+			_loadingLabel.Modulate = Colors.White;
+			_nameLabel.Modulate = Colors.White;
+			AnimationFinished(_startup);
+		}
+		else
+		{
+			_animationPlayer.Play(_startup);
+			_animationPlayer.AnimationFinished += AnimationFinished;
+		}
+	}
 
-    private async void AnimationFinished(StringName name)
-    {
-        await LoadingGlobalData();
-        if (_mainMenuScene == null)
-        {
-            return;
-        }
+	private async void AnimationFinished(StringName name)
+	{
+		await LoadingGlobalData();
+		if (_mainMenuScene == null)
+		{
+			return;
+		}
 
-        GetTree().ChangeSceneToPacked(_mainMenuScene);
-    }
+		GetTree().ChangeSceneToPacked(_mainMenuScene);
+	}
 
-    /// <summary>
-    /// <para>Load the game's global data</para>
-    /// <para>加载游戏的全局数据</para>
-    /// </summary>
-    private async Task LoadingGlobalData()
-    {
-        //Loading App configuration
-        //加载App配置
-        var appConfigData = AppConfig.LoadFromFile();
-        if (appConfigData != null)
-        {
-            AppConfig.ApplyAppConfig(appConfigData);
-        }
+	/// <summary>
+	/// <para>Load the game's global data</para>
+	/// <para>加载游戏的全局数据</para>
+	/// </summary>
+	private async Task LoadingGlobalData()
+	{
+		//Loading App configuration
+		//加载App配置
+		var appConfigData = AppConfig.LoadFromFile();
+		if (appConfigData != null)
+		{
+			AppConfig.ApplyAppConfig(appConfigData);
+		}
 
-        //Set the minimum log level to Info in debug mode.(Print all logs)
-        //在调试模式下将最小日志等级设置为Info。（打印全部日志）
-        //Disable all logs in the release version.
-        //在发行版禁用所有日志。
-        LogCat.MinLogLevel = Config.IsDebug() ? LogCat.InfoLogLevel : LogCat.DisableAllLogLevel;
-        ContributorDataManager.RegisterAllContributorData();
-        DeathInfoGenerator.RegisterDeathInfoHandler(new SelfDeathInfoHandler());
-        MapGenerator.RegisterRoomInjectionProcessor(new ChanceRoomInjectionProcessor());
-        MapGenerator.RegisterRoomInjectionProcessor(new TimeIntervalRoomInjectorProcessor());
-        //Register the corresponding encoding provider to solve the problem of garbled Chinese path of the compressed package
-        //注册对应的编码提供程序，解决压缩包中文路径乱码问题
-        Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
-        //创建游戏数据文件夹
-        var dataPath = Config.GetGameDataDirectory();
-        if (!Directory.Exists(dataPath))
-        {
-            Directory.CreateDirectory(dataPath);
-        }
+		//Set the minimum log level to Info in debug mode.(Print all logs)
+		//在调试模式下将最小日志等级设置为Info。（打印全部日志）
+		//Disable all logs in the release version.
+		//在发行版禁用所有日志。
+		LogCat.MinLogLevel = Config.IsDebug() ? LogCat.InfoLogLevel : LogCat.DisableAllLogLevel;
+		ContributorDataManager.RegisterAllContributorData();
+		DeathInfoGenerator.RegisterDeathInfoHandler(new SelfDeathInfoHandler());
+		MapGenerator.RegisterRoomInjectionProcessor(new ChanceRoomInjectionProcessor());
+		MapGenerator.RegisterRoomInjectionProcessor(new TimeIntervalRoomInjectorProcessor());
+		//Register the corresponding encoding provider to solve the problem of garbled Chinese path of the compressed package
+		//注册对应的编码提供程序，解决压缩包中文路径乱码问题
+		Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
+		//创建游戏数据文件夹
+		var dataPath = Config.GetGameDataDirectory();
+		if (!Directory.Exists(dataPath))
+		{
+			Directory.CreateDirectory(dataPath);
+		}
 
-        //Registered camp
-        //注册阵营
-        var defaultCamp = new Camp(Config.CampId.Default)
-        {
-            FriendInjury = true
-        };
-        CampManager.SetDefaultCamp(defaultCamp);
-        var mazoku = new Camp(Config.CampId.Mazoku);
-        CampManager.AddCamp(mazoku);
-        var aborigines = new Camp(Config.CampId.Aborigines);
-        CampManager.AddCamp(aborigines);
-        //Register ItemTypes from file
-        //从文件注册物品类型
-        ItemTypeRegister.RegisterFromFile();
-        //Hardcoded ItemTypes Register
-        //硬编码注册物品类型
-        ItemTypeRegister.StaticRegister();
-        //静态注册掉落表
-        LootRegister.StaticRegister();
-        await Task.Delay(TimeSpan.FromMilliseconds(500));
-    }
-}
\ No newline at end of file
+		//Registered camp
+		//注册阵营
+		var defaultCamp = new Camp(Config.CampId.Default)
+		{
+			FriendInjury = true
+		};
+		CampManager.SetDefaultCamp(defaultCamp);
+		var mazoku = new Camp(Config.CampId.Mazoku);
+		CampManager.AddCamp(mazoku);
+		var aborigines = new Camp(Config.CampId.Aborigines);
+		CampManager.AddCamp(aborigines);
+		//Register ItemTypes from file
+		//从文件注册物品类型
+		ItemTypeRegister.RegisterFromFile();
+		//Hardcoded ItemTypes Register
+		//硬编码注册物品类型
+		ItemTypeRegister.StaticRegister();
+		//静态注册掉落表
+		LootRegister.StaticRegister();
+		await Task.Delay(TimeSpan.FromMilliseconds(500));
+	}
+}
diff --git a/scripts/map/dateBean/RoomPlacementData.cs b/scripts/map/dateBean/RoomPlacementData.cs
index 854a397..57e9c59 100644
--- a/scripts/map/dateBean/RoomPlacementData.cs
+++ b/scripts/map/dateBean/RoomPlacementData.cs
@@ -14,18 +14,25 @@ public class RoomPlacementData
     /// <para>放置的位置</para>
     /// </summary>
     public Vector2? Position { get; set; }
+
     /// <summary>
     /// <para>Place the room template</para>
     /// <para>放置的房间模板</para>
     /// </summary>
     public Room? Room { get; set; }
     
+    /// <summary>
+    /// <para>Parent room</para>
+    /// <para>父级房间</para>
+    /// </summary>
+    public Room? ParentRoom { get; set; }
+
     /// <summary>
     /// <para>Parent room slot</para>
     /// <para>父级房间的插槽</para>
     /// </summary>
     public RoomSlot? ParentRoomSlot { get; set; }
-    
+
     /// <summary>
     /// <para>A slot for the new room</para>
     /// <para>新房间的插槽</para>
diff --git a/scripts/map/dateBean/RoomSlot.cs b/scripts/map/dateBean/RoomSlot.cs
index 3f050ec..a948b19 100644
--- a/scripts/map/dateBean/RoomSlot.cs
+++ b/scripts/map/dateBean/RoomSlot.cs
@@ -16,8 +16,34 @@ public class RoomSlot
     /// </summary>
     public bool Matched { get; set; }
 
+    /// <summary>
+    /// <para>The starting position of the room slot</para>
+    /// <para>房间插槽的开始位置</para>
+    /// </summary>
+    ///<remarks>
+    ///<para>As opposed to a tile map. Convert to local location please call <see cref="TileMap.MapToLocal"/></para>
+    ///<para>相对于瓦片地图而言的。转换为本地位置请调用<see cref="TileMap.MapToLocal"/></para>
+    /// </remarks>
     public Vector2I StartPosition { get; set; }
+    
+    /// <summary>
+    /// <para>The midpoint of the slot</para>
+    /// <para>插槽的中点位置</para>
+    /// </summary>
+    ///<remarks>
+    ///<para>As opposed to a tile map. Convert to local location please call <see cref="TileMap.MapToLocal"/></para>
+    ///<para>相对于瓦片地图而言的。转换为本地位置请调用<see cref="TileMap.MapToLocal"/></para>
+    /// </remarks>
+    public Vector2I MidpointPosition { get; set; }
 
+    /// <summary>
+    /// <para>The end position of the room slot</para>
+    /// <para>房间插槽的结束位置</para>
+    /// </summary>
+    ///<remarks>
+    ///<para>As opposed to a tile map. Convert to local location please call <see cref="TileMap.MapToLocal"/></para>
+    ///<para>相对于瓦片地图而言的。转换为本地位置请调用<see cref="TileMap.MapToLocal"/></para>
+    /// </remarks>
     public Vector2I EndPosition { get; set; }
 
     /// <summary>
diff --git a/scripts/map/room/Room.cs b/scripts/map/room/Room.cs
index 8a497db..73b89db 100644
--- a/scripts/map/room/Room.cs
+++ b/scripts/map/room/Room.cs
@@ -194,10 +194,12 @@ public class Room
             //转为瓦片地图的坐标(中点)
             var tileMapStartPosition = tileMap.LocalToMap(startPosition);
             var tileMapEndPosition = tileMap.LocalToMap(endPosition);
+            var midpointPosition = tileMap.LocalToMap(midpointOfRoomSlots);
             var roomSlot = new RoomSlot
             {
                 EndPosition = tileMapEndPosition,
                 StartPosition = tileMapStartPosition,
+                MidpointPosition = midpointPosition,
                 //Calculate the orientation of the slot (the midpoint of the room is the origin, the vector pointing to the midpoint of the slot)
                 //计算槽位的方向(房间中点为原点，指向槽位中点的向量)
                 DistanceToMidpointOfRoom = CoordinateUtils.VectorToOrientationArray(midpoint, midpointOfRoomSlots)
diff --git a/scripts/map/roomPlacer/PatchworkRoomPlacementStrategy.cs b/scripts/map/roomPlacer/PatchworkRoomPlacementStrategy.cs
index d6e138c..4eef821 100644
--- a/scripts/map/roomPlacer/PatchworkRoomPlacementStrategy.cs
+++ b/scripts/map/roomPlacer/PatchworkRoomPlacementStrategy.cs
@@ -111,6 +111,27 @@ public class PatchworkRoomPlacementStrategy : IRoomPlacementStrategy
         var rootNode = roomPlacementData.Room.RootNode;
         mapRoot.AddChild(rootNode);
         rootNode.Position = roomPlacementData.Position.Value;
+        //Place navigation Link
+        //放置导航Link
+        //计算旧房间插槽的绝对位置。
+        if (roomPlacementData.Room != null && roomPlacementData.ParentRoom != null )
+        {
+            
+        }
+        
+        
+        // if (roomPlacementData.NewRoomSlot != null && roomPlacementData.ParentRoomSlot != null &&
+        //     roomPlacementData.Position != null)
+        // {
+        //     var navigationLink2D = new NavigationLink2D();
+        //     navigationLink2D.Position = roomPlacementData.Position.Value;
+        //     var startPosition = roomPlacementData.ParentRoomSlot.StartPosition;
+        //     var actualStart = startPosition + roomPlacementData.Position.Value;
+        //     navigationLink2D.StartPosition = actualStart;
+        //     navigationLink2D.EndPosition = roomPlacementData.NewRoomSlot.StartPosition;
+        //     mapRoot.AddChild(navigationLink2D);
+        // }
+
         return Task.FromResult(true);
     }
 
@@ -142,7 +163,7 @@ public class PatchworkRoomPlacementStrategy : IRoomPlacementStrategy
 
         //Saves all data in the room template that matches the parent room.
         //保存房间模板内所有与父房间匹配的数据。
-        var useableRoomPlacementData = new List<RoomPlacementData>();
+        var usableRoomPlacementData = new List<RoomPlacementData>();
         foreach (var roomRes in roomResArray)
         {
             var newRoom = RoomFactory.CreateRoom(roomRes, newRoomNodeData.EnterRoomEventHandlerId,
@@ -169,21 +190,22 @@ public class PatchworkRoomPlacementStrategy : IRoomPlacementStrategy
             var roomPlacementData = new RoomPlacementData
             {
                 Room = newRoom,
+                ParentRoom = parentRoomNode,
                 Position = position,
                 ParentRoomSlot = mainRoomSlot,
                 NewRoomSlot = newRoomSlot
             };
-            useableRoomPlacementData.Add(roomPlacementData);
+            usableRoomPlacementData.Add(roomPlacementData);
         }
 
-        if (useableRoomPlacementData.Count == 0)
+        if (usableRoomPlacementData.Count == 0)
         {
             return null;
         }
         else
         {
-            var index = randomNumberGenerator.Randi() % useableRoomPlacementData.Count;
-            var roomPlacementData = useableRoomPlacementData[(int)index];
+            var index = randomNumberGenerator.Randi() % usableRoomPlacementData.Count;
+            var roomPlacementData = usableRoomPlacementData[(int)index];
             //Be sure to mark its slot as a match when you use it.
             //一定要在使用时，将其插槽标记为匹配。
             if (roomPlacementData.ParentRoomSlot != null)