diff --git a/DungeonShooting_Godot/prefab/role/Player.tscn b/DungeonShooting_Godot/prefab/role/Player.tscn
index d1bea43..c107fcc 100644
--- a/DungeonShooting_Godot/prefab/role/Player.tscn
+++ b/DungeonShooting_Godot/prefab/role/Player.tscn
@@ -98,5 +98,4 @@
 playing = true
 
 [node name="Collision" parent="." index="3"]
-position = Vector2( 0, -3 )
 shape = SubResource( 32 )
diff --git a/DungeonShooting_Godot/scene/Main.tscn b/DungeonShooting_Godot/scene/Main.tscn
index 35a4274..e6534d4 100644
--- a/DungeonShooting_Godot/scene/Main.tscn
+++ b/DungeonShooting_Godot/scene/Main.tscn
@@ -51,7 +51,6 @@
 own_world = true
 transparent_bg = true
 handle_input_locally = false
-debanding = true
 render_target_update_mode = 3
 
 [node name="Room" parent="ViewCanvas/ViewportContainer/Viewport" instance=ExtResource( 1 )]
diff --git a/DungeonShooting_Godot/scene/Room.tscn b/DungeonShooting_Godot/scene/Room.tscn
index aace2c2..4b0daa3 100644
--- a/DungeonShooting_Godot/scene/Room.tscn
+++ b/DungeonShooting_Godot/scene/Room.tscn
@@ -22,6 +22,10 @@
 
 [node name="dungeon_test" parent="MapRoot" instance=ExtResource( 1 )]
 
+[node name="Wall" parent="MapRoot/dungeon_test" index="0"]
+cell_y_sort = false
+bake_navigation = true
+
 [node name="Camera2D" type="Camera2D" parent="."]
 position = Vector2( 253, 219 )
 current = true
@@ -32,3 +36,5 @@
 [node name="ObjectRoot" type="Node2D" parent="."]
 
 [node name="SortRoot" type="YSort" parent="."]
+
+[editable path="MapRoot/dungeon_test"]
diff --git a/DungeonShooting_Godot/src/game/GameConfig.cs b/DungeonShooting_Godot/src/game/GameConfig.cs
index 22ce9d0..a303d3a 100644
--- a/DungeonShooting_Godot/src/game/GameConfig.cs
+++ b/DungeonShooting_Godot/src/game/GameConfig.cs
@@ -20,4 +20,8 @@
     /// </summary>
     public static readonly Vector2 ViewportSize = new Vector2(480, 270);
     //public static Vector2 ViewportSize => OS.WindowSize / WindowScale;
+    /// <summary>
+    /// 游戏地图网格大小
+    /// </summary>
+    public static readonly Vector2 MapCellSize = new Vector2(16, 16);
 }
\ No newline at end of file
diff --git a/DungeonShooting_Godot/src/game/item/weapon/Weapon.cs b/DungeonShooting_Godot/src/game/item/weapon/Weapon.cs
index 44de124..c4879b3 100644
--- a/DungeonShooting_Godot/src/game/item/weapon/Weapon.cs
+++ b/DungeonShooting_Godot/src/game/item/weapon/Weapon.cs
@@ -920,7 +920,7 @@
         var xf = 30;
         var yf = Utils.RandRangeInt(60, 120);
         var rotate = Utils.RandRangeInt(-180, 180);
-        Throw(new Vector2(30, 15), master.MountPoint.GlobalPosition, startHeight, direction, xf, yf, rotate, true);
+        Throw(new Vector2(30, 15), master.GlobalPosition, startHeight, direction, xf, yf, rotate, true);
     }
 
     protected override void OnThrowOver()
diff --git a/DungeonShooting_Godot/src/game/room/RoomManager.cs b/DungeonShooting_Godot/src/game/room/RoomManager.cs
index 2a20736..dfa647d 100644
--- a/DungeonShooting_Godot/src/game/room/RoomManager.cs
+++ b/DungeonShooting_Godot/src/game/room/RoomManager.cs
@@ -39,6 +39,7 @@
     //导航区域数据
     private List<NavigationPolygonData> _polygonDataList = new List<NavigationPolygonData>();
 
+    private TileMap _groundTiled;
     private TileMap _tileMap;
 
     public override void _EnterTree()
@@ -70,7 +71,17 @@
 
     public override void _Ready()
     {
+        _tileMap.CellYSort = false;
+        _tileMap.BakeNavigation = false;
+        //拆分 ground 和 面向下方的 wall
+        _groundTiled = new TileMap();
+        _groundTiled.CellSize = GameConfig.MapCellSize;
+        _groundTiled.TileSet = _tileMap.TileSet;
+        //_groundTiled.SetCell(0, 0, 1);
+        _mapRoot.AddChild(_groundTiled);
+        
         var nowTicks = DateTime.Now.Ticks;
+        //生成寻路网格
         GenerateNavigationPolygon();
         GD.Print("计算NavigationPolygon用时: " + (DateTime.Now.Ticks - nowTicks) / 10000 + "毫秒");