Am I punching trees or pounding sand?

tree/small_tree.gd

@@ -3,9 +3,9 @@ extends Area2D
 var _durability: int = 3
 
 func _on_body_entered(body: Node2D) -> void:
-	if body is CharacterBody2D:
+	if body is Character:
 		_durability -= 1
 		body.repel_collision(self)
 		if _durability <= 0:
-			print("tree dead")
+			Inventory.add_item(Inventory.Wood.new())
 			queue_free()