Updated WeaponTemplate's FiringInterval calculation so that it can be changed by FiringIntervalAsMillisecond even after instantiation.

更新了WeaponTemplate的FiringInterval计算方式以使该值即便在实例化之后也可通过FiringIntervalAsMillisecond更改

prefab/weapons/staffOfTheUndead.tscn

@@ -16,6 +16,7 @@ collision_mask = 34
 script = ExtResource("1_w8hhv")
 ProjectileScenes = [ExtResource("2_34250")]
 Id = "staff_of_the_undead"
+FiringIntervalAsMillisecond = 300
 metadata/Projectiles = PackedStringArray("res://prefab/projectile/curseOfTheUndead.tscn")
 
 [node name="DamageArea2D" type="Area2D" parent="."]

scripts/item/weapon/WeaponTemplate.cs

@@ -3,6 +3,7 @@ using System;
 using ColdMint.scripts.camp;
 using ColdMint.scripts.character;
 using ColdMint.scripts.damage;
+
 using Godot;
 
 namespace ColdMint.scripts.item.weapon;
@@ -70,7 +71,16 @@ public abstract partial class WeaponTemplate : RigidBody2D, IItem
     /// <para>开火间隔</para>
     /// </summary>
     private TimeSpan _firingInterval;
-    [Export] private long _firingIntervalAsMillisecond = 100;
+    private long _firingIntervalAsMillisecond = 100;
+    [Export] protected long FiringIntervalAsMillisecond
+    {
+        get => _firingIntervalAsMillisecond;
+        set
+        {
+            _firingIntervalAsMillisecond = value;
+            _firingInterval = TimeSpan.FromMilliseconds(_firingIntervalAsMillisecond);
+        }
+    }
 
 
     /// <summary>
@@ -101,8 +111,6 @@ public abstract partial class WeaponTemplate : RigidBody2D, IItem
         _damageArea2D = GetNode<Area2D>("DamageArea2D");
         _damageArea2D.BodyEntered += OnBodyEnter;
         _damageArea2D.BodyExited += OnBodyExited;
-
-        _firingInterval = TimeSpan.FromMilliseconds(_firingIntervalAsMillisecond);
     }
 
     private void OnBodyExited(Node node)