Added c++ test; now works

evolve-die-repeat/debug_label.gd

@@ -0,0 +1,13 @@
+extends Label
+
+var counter := Test.new()  # C++ class
+
+func _ready() -> void:
+	text += str(counter.get_counter())
+
+func _process(delta: float) -> void:
+	#if Input.is_action_just_pressed("ui_accept"):
+	counter.increment()
+	var baseText := text
+	baseText = baseText.left(baseText.length() - str(counter.get_counter()).length())
+	text = baseText + str(counter.get_counter())

evolve-die-repeat/debug_label.gd.uid

@@ -0,0 +1 @@
+uid://ceut2lrvkns75

evolve-die-repeat/molecular_stag.tscn

@@ -1,8 +1,12 @@
-[gd_scene format=3 uid="uid://b55w56d4twno1"]
+[gd_scene load_steps=2 format=3 uid="uid://b55w56d4twno1"]
+
+[ext_resource type="Script" uid="uid://ceut2lrvkns75" path="res://debug_label.gd" id="1_quyes"]
 
 [node name="MolecularStag" type="Node2D"]
 
-[node name="Label" type="Label" parent="."]
+[node name="DebugLabel" type="Label" parent="."]
 offset_right = 40.0
 offset_bottom = 23.0
-text = "Debug: You made it into the game!"
+text = "Debug: You made it into the game!
+This is running from C++:                         "
+script = ExtResource("1_quyes")