WIP checkpoint: PC2: Build a basic playable test level scene

scripts/smoke_test_test_level.gd

@@ -27,25 +27,29 @@ func _run() -> void:
 
 	print("SMOKE: test_level.tscn loaded successfully")
 
-	# Instantiate the scene root
-	var level_instance: Node3D = level_resource.instantiate() as Node3D
-	if level_instance == null:
-		printerr("SMOKE RESULT: FAIL — could not instantiate ", level_path)
+	# Change the running scene to our test level
+	var err: int = change_scene_to_packed(level_resource)
+	if err != OK:
+		printerr("SMOKE RESULT: FAIL — change_scene_to_packed returned ", err)
 		quit(1)
 		return
 
-	# Create a temporary root node and add it to the tree so find_child works
-	var root_holder := Node3D.new()
-	add_child(root_holder)
-	root_holder.add_child(level_instance)
+	# Wait for the scene_changed signal so current_scene is set
+	await scene_changed
+
+	var level_instance: Node3D = current_scene as Node3D
+	if level_instance == null:
+		printerr("SMOKE RESULT: FAIL — current_scene is not Node3D")
+		quit(1)
+		return
+
+	# Give the tree one frame to fully initialize
 	await process_frame
 
 	# (b) Find the PlayerSpawn marker
 	var spawn_marker: Node3D = level_instance.find_child("PlayerSpawn", true, false) as Node3D
 	if spawn_marker == null:
-		printerr("SMOKE RESULT: FAIL — no Marker3D named 'PlayerSpawn' found in test level")
-		level_instance.queue_free()
-		root_holder.queue_free()
+		printerr("SMOKE RESULT: FAIL — no Node3D named 'PlayerSpawn' found in test level")
 		quit(1)
 		return
 
@@ -58,8 +62,6 @@ func _run() -> void:
 	if spawn_y < 1.0:
 		printerr("SMOKE RESULT: FAIL — PlayerSpawn y = ", spawn_y,
 				 " is below the required minimum of 1.0 m above ground top (y=0)")
-		level_instance.queue_free()
-		root_holder.queue_free()
 		quit(1)
 		return
 
@@ -69,8 +71,6 @@ func _run() -> void:
 	var ground: StaticBody3D = level_instance.find_child("Ground", true, false) as StaticBody3D
 	if ground == null:
 		printerr("SMOKE RESULT: FAIL — no StaticBody3D named 'Ground' found")
-		level_instance.queue_free()
-		root_holder.queue_free()
 		quit(1)
 		return
 
@@ -83,8 +83,6 @@ func _run() -> void:
 		var ground_top: float = ground.global_position.y + box_shape.size.y / 2.0
 		if abs(ground_top - 0.0) > 0.01:
 			printerr("SMOKE RESULT: FAIL — Ground top face at y = ", ground_top, " expected ~0.0")
-			level_instance.queue_free()
-			root_holder.queue_free()
 			quit(1)
 			return
 		print("SMOKE: Ground top face at y = ", ground_top, " — PASS")
@@ -98,15 +96,11 @@ func _run() -> void:
 				prop_count += 1
 		if prop_count < 3:
 			printerr("SMOKE RESULT: FAIL — only ", prop_count, " props found, need >= 3")
-			level_instance.queue_free()
-			root_holder.queue_free()
 			quit(1)
 			return
 		print("SMOKE: found ", prop_count, " props — PASS")
 	else:
 		printerr("SMOKE RESULT: FAIL — no 'Props' Node3D found")
-		level_instance.queue_free()
-		root_holder.queue_free()
 		quit(1)
 		return
 
@@ -114,8 +108,6 @@ func _run() -> void:
 	var sun: DirectionalLight3D = level_instance.find_child("Sun", true, false) as DirectionalLight3D
 	if sun == null:
 		printerr("SMOKE RESULT: FAIL — no DirectionalLight3D named 'Sun' found")
-		level_instance.queue_free()
-		root_holder.queue_free()
 		quit(1)
 		return
 	print("SMOKE: found Sun DirectionalLight3D")
@@ -123,14 +115,10 @@ func _run() -> void:
 	var env: WorldEnvironment = level_instance.find_child("Environment", true, false) as WorldEnvironment
 	if env == null:
 		printerr("SMOKE RESULT: FAIL — no WorldEnvironment named 'Environment' found")
-		level_instance.queue_free()
-		root_holder.queue_free()
 		quit(1)
 		return
 	print("SMOKE: found WorldEnvironment")
 
 	# All checks passed
 	print("SMOKE RESULT: PASS")
-	level_instance.queue_free()
-	root_holder.queue_free()
 	quit(0)