Using Yield GDScript for a Notifier Model

notification.gd

extends Node

## NOTIFIER MODEL

class MyNotifier extends Object:
	signal poke

	func poke():
		# this can even take arguments if you want to pass some
		emit_signal("poke", "hello", "hi")

var obj_notify = MyNotifier.new() # create an object that will broadcast messages
var time = 0

func notify_me():
	return obj_notify

func do_something():
	print("doing something")
	print(yield(notify_me(), "poke")) # returns an array
	# this is much easier compared to hooking up signals
	print("back to doing something")

func do_something_else():
	print("doing something else")
	yield(notify_me(), "poke")
	print("back to doing something else")

func _ready():
	do_something()
	do_something_else()

func _process(delta):
	# poke every 2 seconds
	time += delta
	if time > 2:
		obj_notify.poke()
		time = 0