diff --git a/prefab/packsacks/packsack.tscn b/prefab/packsacks/packsack.tscn
index 9520244..31b1f76 100644
--- a/prefab/packsacks/packsack.tscn
+++ b/prefab/packsacks/packsack.tscn
@@ -11,11 +11,6 @@ collision_layer = 8
 collision_mask = 38
 script = ExtResource("1_8ehup")
 Id = "packsack"
-metadata/Id = "Packsack"
-metadata/MaxStackQuantity = 1
-metadata/Icon = ExtResource("2_e1ale")
-metadata/Name = "packsack"
-metadata/Description = "packsack_desc"
 
 [node name="Player" type="Sprite2D" parent="."]
 texture = ExtResource("2_e1ale")
diff --git a/prefab/weapons/staffOfTheUndead.tscn b/prefab/weapons/staffOfTheUndead.tscn
index 6bd0176..d4732bf 100644
--- a/prefab/weapons/staffOfTheUndead.tscn
+++ b/prefab/weapons/staffOfTheUndead.tscn
@@ -2,7 +2,7 @@
 
 [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="Texture2D" uid="uid://b2blj0yf4ohx3" path="res://icon.svg" id="2_l5lni"]
+[ext_resource type="PackedScene" uid="uid://c01av43yk1q71" path="res://prefab/projectile/curseOfTheUndead.tscn" id="2_34250"]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_obcq2"]
 size = Vector2(49, 5)
@@ -14,14 +14,9 @@ size = Vector2(49, 5.25)
 collision_layer = 8
 collision_mask = 34
 script = ExtResource("1_w8hhv")
+ProjectileScenes = [ExtResource("2_34250")]
 Id = "staff_of_the_undead"
 metadata/Projectiles = PackedStringArray("res://prefab/projectile/curseOfTheUndead.tscn")
-metadata/Name = "staff_of_the_undead"
-metadata/FiringIntervalArray = PackedInt64Array(5000, 500, 250)
-metadata/Icon = ExtResource("2_l5lni")
-metadata/ID = "StaffOfTheUndead"
-metadata/MaxStackQuantity = 1
-metadata/Description = "staff_of_the_undead_desc"
 
 [node name="DamageArea2D" type="Area2D" parent="."]
 collision_layer = 8
diff --git a/scripts/item/weapon/ProjectileWeapon.cs b/scripts/item/weapon/ProjectileWeapon.cs
index afbd3f9..323caa2 100644
--- a/scripts/item/weapon/ProjectileWeapon.cs
+++ b/scripts/item/weapon/ProjectileWeapon.cs
@@ -24,31 +24,35 @@ public partial class ProjectileWeapon : WeaponTemplate
     /// </summary>
     private Marker2D? _marker2D;
 
-    /// <summary>
-    /// <para>List of projectiles</para>
-    /// <para>抛射体列表</para>
-    /// </summary>
-    private string[]? _projectiles;
+    // /// <summary>
+    // /// <para>List of projectiles</para>
+    // /// <para>抛射体列表</para>
+    // /// </summary>
+    // private string[]? _projectiles;
+    //
+    // private Dictionary<string, PackedScene>? _projectileCache;
+
+    [Export] protected PackedScene[] ProjectileScenes { get; set; } = [];
 
-    private Dictionary<string, PackedScene>? _projectileCache;
     private Node2D? _projectileContainer;
 
     public override void _Ready()
     {
         base._Ready();
         _marker2D = GetNode<Marker2D>("Marker2D");
-        _projectileCache = new Dictionary<string, PackedScene>();
-        _projectiles = GetMeta("Projectiles", "").AsStringArray();
-        foreach (var projectileItem in _projectiles)
-        {
-            var packedScene = GD.Load<PackedScene>(projectileItem);
-            if (packedScene == null)
-            {
-                continue;
-            }
 
-            _projectileCache.Add(projectileItem, packedScene);
-        }
+        // _projectileCache = new Dictionary<string, PackedScene>();
+        // _projectiles = GetMeta("Projectiles", "").AsStringArray();
+        // foreach (var projectileItem in _projectiles)
+        // {
+        //     var packedScene = GD.Load<PackedScene>(projectileItem);
+        //     if (packedScene == null)
+        //     {
+        //         continue;
+        //     }
+        //
+        //     _projectileCache.Add(projectileItem, packedScene);
+        // }
 
         _projectileContainer = GetNode("/root/Game/ProjectileContainer") as Node2D;
     }
@@ -56,13 +60,10 @@ public partial class ProjectileWeapon : WeaponTemplate
 
     protected override void DoFire(Node2D? owner, Vector2 enemyGlobalPosition)
     {
-        if (_projectileCache == null || _projectiles == null || owner == null || _projectileContainer == null ||
-            _marker2D == null)
-        {
-            return;
-        }
+        if (owner == null || _projectileContainer == null || _marker2D == null) return;
 
-        if (_projectiles.IsEmpty())
+        //空列表检查
+        if (ProjectileScenes is [])
         {
             LogCat.LogError("projectiles_is_empty");
             return;
@@ -70,7 +71,8 @@ public partial class ProjectileWeapon : WeaponTemplate
 
         //Get the first projectile
         //获取第一个抛射体
-        var projectileScene = _projectileCache[_projectiles[0]];
+        var projectileScene = ProjectileScenes[0];
+        // var projectileScene = _projectileCache[_projectiles[0]];
         var projectile = NodeUtils.InstantiatePackedScene<ProjectileTemplate>(projectileScene, _projectileContainer);
         if (projectile == null) return;
         projectile.Owner = owner;