this is so easy to develop there must be a catch

systems/weapon/WeaponSystem.cs

@@ -1,10 +1,12 @@
 using System;
 using Godot;
 using GodotStateCharts;
+using Movementtests.interfaces;
+using Movementtests.systems.damage;
 
 namespace Movementtests.systems;
 
-public partial class WeaponSystem : RigidBody3D
+public partial class WeaponSystem : RigidBody3D, IDamageDealer
 {
     [Signal]
     public delegate void WeaponThrownEventHandler();
@@ -12,6 +14,8 @@ public partial class WeaponSystem : RigidBody3D
     [Signal]
     public delegate void WeaponRetrievedEventHandler();
     
+    [Export]
+    public RDamage RDamage { get; set; }
     [Export(PropertyHint.Range, "0,100,1,or_greater")]
     public float ThrowForce { get; set; } = 1f;
     [Export(PropertyHint.Range, "0,0.2,0.01,or_greater")]
@@ -107,6 +111,17 @@ public partial class WeaponSystem : RigidBody3D
             tween.Finished += ThrowWeaponOnCurve;
     }
 
+    public void PlantInEnemy(Node3D enemy)
+    {
+        GetTree().GetRoot().CallDeferred(Node.MethodName.RemoveChild, this);
+        enemy.CallDeferred(Node.MethodName.AddChild, this);
+
+        if (enemy is IDamageable damageable)
+        {
+            damageable.TakeDamage(new DamageRecord(this, RDamage));
+        }
+    }
+
     public void RethrowWeapon()
     {
         _weaponState.SendEvent("throw");
@@ -130,8 +145,7 @@ public partial class WeaponSystem : RigidBody3D
         // WeaponLocationIndicatorMaterial.StencilColor = new Color(1f, 0.2f, 0.2f);
         if (PlantObject is Node3D node)
         {
-			GetTree().GetRoot().CallDeferred(Node.MethodName.RemoveChild, this);
-            node.CallDeferred(Node.MethodName.AddChild, this);
+            PlantInEnemy(node);
         }
         CallDeferred(Node3D.MethodName.SetGlobalPosition, PlantLocation);
         CallDeferred(Node3D.MethodName.LookAt, GlobalTransform.Origin + PlantNormal, Vector3.Up, true);

systems/weapon/weapon.tscn

@@ -1,6 +1,7 @@
-[gd_scene load_steps=12 format=3 uid="uid://ckm3d6k08a72u"]
+[gd_scene load_steps=14 format=3 uid="uid://ckm3d6k08a72u"]
 
 [ext_resource type="Script" uid="uid://iii3wfto4t5b" path="res://systems/weapon/WeaponSystem.cs" id="1_csqwk"]
+[ext_resource type="Script" uid="uid://jitubgv6judn" path="res://components/damage/RDamage.cs" id="2_m0v1h"]
 [ext_resource type="PackedScene" uid="uid://dbe5f0p6lvqtr" path="res://systems/tween_queue/tween_queue_system.tscn" id="2_x1nha"]
 [ext_resource type="Script" uid="uid://couw105c3bde4" path="res://addons/godot_state_charts/state_chart.gd" id="3_5owyf"]
 [ext_resource type="ArrayMesh" uid="uid://cho5fixitrbds" path="res://assets/swords/resources/sword23.tres" id="3_svc06"]
@@ -8,6 +9,11 @@
 [ext_resource type="Script" uid="uid://cytafq8i1y8qm" path="res://addons/godot_state_charts/atomic_state.gd" id="5_m0v1h"]
 [ext_resource type="Script" uid="uid://cf1nsco3w0mf6" path="res://addons/godot_state_charts/transition.gd" id="6_jpdh0"]
 
+[sub_resource type="Resource" id="Resource_jpdh0"]
+script = ExtResource("2_m0v1h")
+DamageDealt = 2.0
+metadata/_custom_type_script = "uid://jitubgv6judn"
+
 [sub_resource type="CylinderShape3D" id="CylinderShape3D_avini"]
 height = 1.0
 radius = 0.1
@@ -43,6 +49,7 @@ continuous_cd = true
 contact_monitor = true
 max_contacts_reported = 1
 script = ExtResource("1_csqwk")
+RDamage = SubResource("Resource_jpdh0")
 
 [node name="TweenQueueSystem" parent="." instance=ExtResource("2_x1nha")]