diff --git a/scripts/character/AiCharacter.cs b/scripts/character/AiCharacter.cs
index 2cd2b6b..c035fe4 100644
--- a/scripts/character/AiCharacter.cs
+++ b/scripts/character/AiCharacter.cs
@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using ColdMint.scripts.bubble;
 using ColdMint.scripts.camp;
+using ColdMint.scripts.debug;
 using ColdMint.scripts.inventory;
 using ColdMint.scripts.stateMachine;
 using ColdMint.scripts.utils;
@@ -210,7 +211,7 @@ public sealed partial class AiCharacter : CharacterTemplate
     /// </summary>
     private void AddInitialWeapon(string? initWeaponRes)
     {
-        if (initWeaponRes == null)
+        if (string.IsNullOrEmpty(initWeaponRes))
         {
             return;
         }
diff --git a/scripts/character/CharacterTemplate.cs b/scripts/character/CharacterTemplate.cs
index b0f7f89..3c2e32b 100644
--- a/scripts/character/CharacterTemplate.cs
+++ b/scripts/character/CharacterTemplate.cs
@@ -403,7 +403,6 @@ public partial class CharacterTemplate : CharacterBody2D
         }
 
         NodeUtils.CallDeferredReparent(ItemMarker2D, pickAbleItemNode2D);
-        pickAbleItemNode2D.Position = Vector2.Zero;
         return true;
     }
 
diff --git a/scripts/loader/uiLoader/SplashScreenLoader.cs b/scripts/loader/uiLoader/SplashScreenLoader.cs
index 06b71cc..318c314 100644
--- a/scripts/loader/uiLoader/SplashScreenLoader.cs
+++ b/scripts/loader/uiLoader/SplashScreenLoader.cs
@@ -130,6 +130,6 @@ public partial class SplashScreenLoader : UiLoaderTemplate
             ModLoader.LoadAllMods(modPath);
         }
 
-        await Task.CompletedTask;
+        await Task.Yield();
     }
 }
\ No newline at end of file
diff --git a/scripts/projectile/ProjectileTemplate.cs b/scripts/projectile/ProjectileTemplate.cs
index 92b444e..e254b26 100644
--- a/scripts/projectile/ProjectileTemplate.cs
+++ b/scripts/projectile/ProjectileTemplate.cs
@@ -105,7 +105,7 @@ public partial class ProjectileTemplate : CharacterBody2D
             return false;
         }
 
-        if (target is TileMap)
+        if (target is TileMapLayer)
         {
             //When we hit the tile, we return true to prevent the bullet from penetrating the tile.
             //撞击到瓦片时，我们返回true，是为了防止子弹穿透瓦片。
diff --git a/scripts/utils/TileMapUtils.cs b/scripts/utils/TileMapUtils.cs
deleted file mode 100644
index 09399a6..0000000
--- a/scripts/utils/TileMapUtils.cs
+++ /dev/null
@@ -1,36 +0,0 @@
-using Godot;
-
-namespace ColdMint.scripts.utils;
-
-/// <summary>
-/// <para>TileMapUtils</para>
-/// <para>TileMap工具</para>
-/// </summary>
-public static class TileMapUtils
-{
-    /// <summary>
-    /// <para>Get the layer number corresponding to LayerName in TileMap</para>
-    /// <para>在TileMap内获取LayerName所对应的图层序号</para>
-    /// </summary>
-    /// <param name="tileMap"></param>
-    /// <param name="layerName"></param>
-    /// <returns>
-    ///<para>− 1 is returned after obtaining failure</para>
-    ///<para>获取失败返回-1</para>
-    /// </returns>
-    public static int GetTileMapLayer(TileMap tileMap, string layerName)
-    {
-        var count = tileMap.GetLayersCount();
-        for (var i = 0; i < count; i++)
-        {
-            var currentLayerName = tileMap.GetLayerName(i);
-            if (currentLayerName == layerName)
-            {
-                return i;
-            }
-        }
-
-        return -1;
-    }
-    
-}
\ No newline at end of file
diff --git a/scripts/weapon/WeaponTemplate.cs b/scripts/weapon/WeaponTemplate.cs
index 4ae56ed..b6380f9 100644
--- a/scripts/weapon/WeaponTemplate.cs
+++ b/scripts/weapon/WeaponTemplate.cs
@@ -82,7 +82,7 @@ public abstract partial class WeaponTemplate : PickAbleTemplate
                 var forceX = Math.Abs(_recoil.X);
                 if (Math.Abs(RotationDegrees) < 90)
                 {
-                    //The weapon goes to the right and we apply a recoil to the left
+                    //The weapon goes to the right, and we apply a recoil to the left
                     //武器朝向右边我们向左施加后坐力
                     forceX = -forceX;
                 }