diff --git a/prefab/packsacks/packsack.tscn b/prefab/packsacks/packsack.tscn
index f588a82..cac9ee7 100644
--- a/prefab/packsacks/packsack.tscn
+++ b/prefab/packsacks/packsack.tscn
@@ -1,6 +1,6 @@
 [gd_scene load_steps=5 format=3 uid="uid://cn10fimoem04m"]
 
-[ext_resource type="Script" path="res://scripts/item/Packsack.cs" id="1_slakl"]
+[ext_resource type="Script" path="res://scripts/inventory/Packsack.cs" id="1_slakl"]
 [ext_resource type="Texture2D" uid="uid://dvx10dfjctn7t" path="res://sprites/packsack.png" id="2_40jca"]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_brthl"]
diff --git a/prefab/weapons/staffOfTheUndead.tscn b/prefab/weapons/staffOfTheUndead.tscn
index 01d4dc3..c666b57 100644
--- a/prefab/weapons/staffOfTheUndead.tscn
+++ b/prefab/weapons/staffOfTheUndead.tscn
@@ -1,7 +1,7 @@
 [gd_scene load_steps=6 format=3 uid="uid://dnnn2xyayiehk"]
 
 [ext_resource type="Texture2D" uid="uid://e6670ykyq145" path="res://sprites/weapon/staffOfTheUndead.png" id="1_ms3us"]
-[ext_resource type="Script" path="res://scripts/item/weapon/ProjectileWeapon.cs" id="1_w8hhv"]
+[ext_resource type="Script" path="res://scripts/weapon/ProjectileWeapon.cs" id="1_w8hhv"]
 [ext_resource type="PackedScene" uid="uid://c01av43yk1q71" path="res://prefab/projectile/curseOfTheUndead.tscn" id="2_34250"]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_obcq2"]
diff --git a/scripts/GameSceneNodeHolder.cs b/scripts/GameSceneNodeHolder.cs
index e97cd51..6dc2f79 100644
--- a/scripts/GameSceneNodeHolder.cs
+++ b/scripts/GameSceneNodeHolder.cs
@@ -1,6 +1,5 @@
 using ColdMint.scripts.character;
 using ColdMint.scripts.inventory;
-using ColdMint.scripts.item;
 using ColdMint.scripts.loader.uiLoader;
 using ColdMint.scripts.map.events;
 using ColdMint.scripts.utils;
diff --git a/scripts/behaviorTree/ai/AiPickNode.cs b/scripts/behaviorTree/ai/AiPickNode.cs
index 727fbdd..9f98d0e 100644
--- a/scripts/behaviorTree/ai/AiPickNode.cs
+++ b/scripts/behaviorTree/ai/AiPickNode.cs
@@ -1,6 +1,6 @@
 using ColdMint.scripts.character;
 
-using ColdMint.scripts.item.weapon;
+using WeaponTemplate = ColdMint.scripts.weapon.WeaponTemplate;
 
 namespace ColdMint.scripts.behaviorTree.ai;
 
diff --git a/scripts/behaviorTree/behavior/PatrolBehaviorTree.cs b/scripts/behaviorTree/behavior/PatrolBehaviorTree.cs
deleted file mode 100644
index ce64f85..0000000
--- a/scripts/behaviorTree/behavior/PatrolBehaviorTree.cs
+++ /dev/null
@@ -1,36 +0,0 @@
-using ColdMint.scripts.behaviorTree.ai;
-using ColdMint.scripts.character;
-
-namespace ColdMint.scripts.behaviorTree.behavior;
-
-/// <summary>
-/// <para>Represents a behavior tree for patrol</para>
-/// <para>表示巡逻的行为树</para>
-/// </summary>
-public class PatrolBehaviorTree : BehaviorTreeTemplate
-{
-    public AiCharacter? Character { get; set; }
-    protected override IBehaviorTreeNode CreateRoot()
-    {
-        var patrolNode = new AiPatrolNode();
-        var aiWalkNode = new AiWalkNode();
-        var aiRotorNode = new AiRotorNode();
-        var aIPickNode = new AiPickNode();
-        var aiAttackNode = new AiAttackNode();
-        aiWalkNode.Character = Character;
-        patrolNode.Character = Character;
-        aiRotorNode.Character = Character;
-        aIPickNode.Character = Character;
-        aiAttackNode.Character = Character;
-        patrolNode.AddChild(aiWalkNode);
-        patrolNode.AddChild(aiRotorNode);
-        patrolNode.AddChild(aIPickNode);
-        patrolNode.AddChild(aiAttackNode);
-        return patrolNode;
-    }
-
-    protected override string CreateId()
-    {
-        return Config.BehaviorTreeId.Patrol;
-    }
-}
\ No newline at end of file
diff --git a/scripts/character/CharacterTemplate.cs b/scripts/character/CharacterTemplate.cs
index b74d21f..42d4e35 100644
--- a/scripts/character/CharacterTemplate.cs
+++ b/scripts/character/CharacterTemplate.cs
@@ -6,12 +6,11 @@ using ColdMint.scripts.damage;
 using ColdMint.scripts.debug;
 using ColdMint.scripts.health;
 using ColdMint.scripts.inventory;
-using ColdMint.scripts.item;
 using ColdMint.scripts.utils;
-using ColdMint.scripts.item.weapon;
 using ColdMint.scripts.loot;
 using ColdMint.scripts.pickable;
 using Godot;
+using WeaponTemplate = ColdMint.scripts.weapon.WeaponTemplate;
 
 namespace ColdMint.scripts.character;
 
diff --git a/scripts/character/Player.cs b/scripts/character/Player.cs
index ecb6d72..66a0eb2 100644
--- a/scripts/character/Player.cs
+++ b/scripts/character/Player.cs
@@ -4,7 +4,6 @@ using System.Threading.Tasks;
 using ColdMint.scripts.damage;
 using ColdMint.scripts.deathInfo;
 using ColdMint.scripts.inventory;
-using ColdMint.scripts.item;
 using ColdMint.scripts.map.events;
 using ColdMint.scripts.utils;
 using ColdMint.scripts.pickable;
diff --git a/scripts/item/IItem.cs b/scripts/inventory/IItem.cs
similarity index 97%
rename from scripts/item/IItem.cs
rename to scripts/inventory/IItem.cs
index 2b40859..65ece50 100644
--- a/scripts/item/IItem.cs
+++ b/scripts/inventory/IItem.cs
@@ -1,6 +1,6 @@
 using Godot;
 
-namespace ColdMint.scripts.item;
+namespace ColdMint.scripts.inventory;
 
 public interface IItem
 {
diff --git a/scripts/inventory/IItemContainer.cs b/scripts/inventory/IItemContainer.cs
index 48a0302..052b2d1 100644
--- a/scripts/inventory/IItemContainer.cs
+++ b/scripts/inventory/IItemContainer.cs
@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using ColdMint.scripts.item;
 using ColdMint.scripts.map.events;
 using Godot;
 
diff --git a/scripts/inventory/ItemSlotNode.cs b/scripts/inventory/ItemSlotNode.cs
index ce083aa..a422073 100644
--- a/scripts/inventory/ItemSlotNode.cs
+++ b/scripts/inventory/ItemSlotNode.cs
@@ -1,6 +1,4 @@
 using System;
-using System.Text.RegularExpressions;
-using ColdMint.scripts.item;
 using ColdMint.scripts.utils;
 using Godot;
 
diff --git a/scripts/item/ItemType.cs b/scripts/inventory/ItemType.cs
similarity index 96%
rename from scripts/item/ItemType.cs
rename to scripts/inventory/ItemType.cs
index 3c33da2..c1581a8 100644
--- a/scripts/item/ItemType.cs
+++ b/scripts/inventory/ItemType.cs
@@ -1,8 +1,7 @@
 using System;
-
 using Godot;
 
-namespace ColdMint.scripts.item;
+namespace ColdMint.scripts.inventory;
 
 public readonly struct ItemType(string id, Func<IItem?> newItemFunc, Texture2D? icon, int maxStackQuantity)
 {
diff --git a/scripts/item/ItemTypeManager.cs b/scripts/inventory/ItemTypeManager.cs
similarity index 99%
rename from scripts/item/ItemTypeManager.cs
rename to scripts/inventory/ItemTypeManager.cs
index 1e29cca..9da7404 100644
--- a/scripts/item/ItemTypeManager.cs
+++ b/scripts/inventory/ItemTypeManager.cs
@@ -1,10 +1,8 @@
 using System.Collections.Generic;
-
 using ColdMint.scripts.utils;
-
 using Godot;
 
-namespace ColdMint.scripts.item;
+namespace ColdMint.scripts.inventory;
 
 /// <summary>
 /// <para>Item manager</para>
diff --git a/scripts/item/ItemTypeRegister.cs b/scripts/inventory/ItemTypeRegister.cs
similarity index 98%
rename from scripts/item/ItemTypeRegister.cs
rename to scripts/inventory/ItemTypeRegister.cs
index 65ff272..c0fb919 100644
--- a/scripts/item/ItemTypeRegister.cs
+++ b/scripts/inventory/ItemTypeRegister.cs
@@ -6,9 +6,10 @@ using ColdMint.scripts.serialization;
 using ColdMint.scripts.utils;
 using Godot;
 
-namespace ColdMint.scripts.item;
+namespace ColdMint.scripts.inventory;
 
 /// <summary>
+/// Responsible for registering items from documents
 /// 负责从文件注册物品
 /// </summary>
 public static class ItemTypeRegister
diff --git a/scripts/item/Packsack.cs b/scripts/inventory/Packsack.cs
similarity index 93%
rename from scripts/item/Packsack.cs
rename to scripts/inventory/Packsack.cs
index 54477ef..8d91306 100644
--- a/scripts/item/Packsack.cs
+++ b/scripts/inventory/Packsack.cs
@@ -1,11 +1,9 @@
-using ColdMint.scripts.inventory;
-using ColdMint.scripts.pickable;
+using ColdMint.scripts.pickable;
 using ColdMint.scripts.utils;
-
 using Godot;
 using PacksackUi = ColdMint.scripts.loader.uiLoader.PacksackUi;
 
-namespace ColdMint.scripts.item;
+namespace ColdMint.scripts.inventory;
 
 /// <summary>
 /// <para>packsack</para>
diff --git a/scripts/inventory/UniversalItemContainer.cs b/scripts/inventory/UniversalItemContainer.cs
index 2e5f853..e5fcc68 100644
--- a/scripts/inventory/UniversalItemContainer.cs
+++ b/scripts/inventory/UniversalItemContainer.cs
@@ -2,7 +2,6 @@
 using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
-using ColdMint.scripts.item;
 using ColdMint.scripts.map.events;
 using ColdMint.scripts.utils;
 using Godot;
diff --git a/scripts/loader/uiLoader/MainMenuLoader.cs b/scripts/loader/uiLoader/MainMenuLoader.cs
index 7360ae9..2283d67 100644
--- a/scripts/loader/uiLoader/MainMenuLoader.cs
+++ b/scripts/loader/uiLoader/MainMenuLoader.cs
@@ -6,7 +6,7 @@ using ColdMint.scripts.camp;
 using ColdMint.scripts.contribute;
 using ColdMint.scripts.deathInfo;
 using ColdMint.scripts.debug;
-using ColdMint.scripts.item;
+using ColdMint.scripts.inventory;
 using ColdMint.scripts.loot;
 using ColdMint.scripts.map;
 using ColdMint.scripts.map.roomInjectionProcessor;
diff --git a/scripts/pickable/PickAbleTemplate.cs b/scripts/pickable/PickAbleTemplate.cs
index 4a04051..bf2b40c 100644
--- a/scripts/pickable/PickAbleTemplate.cs
+++ b/scripts/pickable/PickAbleTemplate.cs
@@ -2,7 +2,7 @@
 using ColdMint.scripts.camp;
 using ColdMint.scripts.character;
 using ColdMint.scripts.damage;
-using ColdMint.scripts.item;
+using ColdMint.scripts.inventory;
 using Godot;
 
 namespace ColdMint.scripts.pickable;
diff --git a/scripts/projectile/ProjectileTemplate.cs b/scripts/projectile/ProjectileTemplate.cs
index 684eda4..57e2434 100644
--- a/scripts/projectile/ProjectileTemplate.cs
+++ b/scripts/projectile/ProjectileTemplate.cs
@@ -3,8 +3,7 @@ using System;
 using ColdMint.scripts.camp;
 using ColdMint.scripts.character;
 using ColdMint.scripts.damage;
-using ColdMint.scripts.item;
-using ColdMint.scripts.item.weapon;
+using ColdMint.scripts.inventory;
 using ColdMint.scripts.pickable;
 using Godot;
 
diff --git a/scripts/utils/NodeUtils.cs b/scripts/utils/NodeUtils.cs
index 538659b..e6558e9 100644
--- a/scripts/utils/NodeUtils.cs
+++ b/scripts/utils/NodeUtils.cs
@@ -2,10 +2,10 @@
 using System.Collections.Generic;
 using System.Threading.Tasks;
 using ColdMint.scripts.debug;
-using ColdMint.scripts.item;
-using ColdMint.scripts.item.weapon;
 using Godot;
+using Packsack = ColdMint.scripts.inventory.Packsack;
 using PacksackUi = ColdMint.scripts.loader.uiLoader.PacksackUi;
+using WeaponTemplate = ColdMint.scripts.weapon.WeaponTemplate;
 
 
 namespace ColdMint.scripts.utils;
diff --git a/scripts/item/weapon/ProjectileWeapon.cs b/scripts/weapon/ProjectileWeapon.cs
similarity index 97%
rename from scripts/item/weapon/ProjectileWeapon.cs
rename to scripts/weapon/ProjectileWeapon.cs
index bef4302..1939c7b 100644
--- a/scripts/item/weapon/ProjectileWeapon.cs
+++ b/scripts/weapon/ProjectileWeapon.cs
@@ -1,10 +1,9 @@
 using ColdMint.scripts.debug;
 using ColdMint.scripts.projectile;
 using ColdMint.scripts.utils;
-
 using Godot;
 
-namespace ColdMint.scripts.item.weapon;
+namespace ColdMint.scripts.weapon;
 
 /// <summary>
 /// <para>Projectile weapons</para>
diff --git a/scripts/item/weapon/WeaponTemplate.cs b/scripts/weapon/WeaponTemplate.cs
similarity index 98%
rename from scripts/item/weapon/WeaponTemplate.cs
rename to scripts/weapon/WeaponTemplate.cs
index e3a01d3..1fc0aa7 100644
--- a/scripts/item/weapon/WeaponTemplate.cs
+++ b/scripts/weapon/WeaponTemplate.cs
@@ -1,10 +1,9 @@
 using System;
-
 using ColdMint.scripts.character;
 using ColdMint.scripts.pickable;
 using Godot;
 
-namespace ColdMint.scripts.item.weapon;
+namespace ColdMint.scripts.weapon;
 
 /// <summary>
 /// <para>WeaponTemplate</para>