Am I punching trees or pounding sand?

items/inventory.gd

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+#Inventory Singleton
+extends Node
+
+#game items
+@abstract
+class Item:
+	var name: String
+	func _init(_name: String):
+		name = _name
+
+class Wood extends Item:
+	func _init():
+		super("Wood")
+
+class Stone extends Item:
+	func _init():
+		super("Stone")
+
+#inventory controls
+var _inventory_contents: Array[Item] = []
+
+func add_item(item: Item) -> void:
+	_inventory_contents.push_back(item)
+	print("Inventory: ", _inventory_contents.map(func (i: Item) -> String: return i.name))

items/inventory.gd.uid

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+uid://cf0cv8j7r1qjm