First commit 🎉

addons/popochiu/migration/migrations/popochiu_migration_3.gd

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+@tool
+class_name PopochiuMigration3
+extends PopochiuMigration
+
+const VERSION = 3
+const DESCRIPTION = "Update clickables to set look_at_point property"
+const STEPS = [
+	"Update all clickables in rooms",
+]
+const LOOK_AT_POINT_OFFSET = Vector2(-10, -10)
+
+
+#region Virtual ####################################################################################
+## This is code specific for this migration. This should return [code]true[/code] if the migration
+## is successful. This is called from [method do_migration] which checks to make sure the migration
+## should be done before calling this.
+func _do_migration() -> bool:
+	return await PopochiuMigrationHelper.execute_migration_steps(
+		self,
+		[
+			_update_objects_in_rooms
+		]
+	)
+
+
+#endregion
+
+#region Private ####################################################################################
+## Update all rooms clickables to set a default value for the look_at_point property.
+func _update_objects_in_rooms() -> Completion:
+	var any_room_updated := PopochiuUtils.any_exhaustive(
+		PopochiuEditorHelper.get_rooms(), _update_room
+	)
+
+	_reload_needed = any_room_updated
+	return Completion.DONE if any_room_updated else Completion.IGNORED
+
+
+func _update_popochiu_clickable(popochiu_room: PopochiuRoom, clickable_type: String) -> bool:
+	if not popochiu_room.has_node(clickable_type):
+		return false
+
+	var changed = false
+
+	for obj: Node in popochiu_room.find_child(clickable_type).get_children():
+		if PopochiuEditorHelper.is_popochiu_clickable(obj):
+			obj.look_at_point = obj.walk_to_point + LOOK_AT_POINT_OFFSET
+			changed = true
+			PopochiuUtils.print_normal(
+				"Migration %d: %s: updated %s look_at_point." %
+				[VERSION, clickable_type, obj.script_name]
+			)
+
+	return changed
+
+
+func _update_room(popochiu_room: PopochiuRoom) -> bool:
+	var room_updated = _update_popochiu_clickable(popochiu_room, "Characters")
+	room_updated = _update_popochiu_clickable(popochiu_room, "Props") or room_updated
+	room_updated = _update_popochiu_clickable(popochiu_room, "Hotspots") or room_updated
+	
+	if room_updated and PopochiuEditorHelper.pack_scene(popochiu_room) != OK:
+		PopochiuUtils.print_error(
+			"Migration %d: Couldn't update [b]%s[/b] after updating clickables." %
+			[VERSION, popochiu_room.script_name]
+		)
+
+	return room_updated
+
+
+#endregion