extends Node


var state_stack = []

func _ready():
	state_stack.push_back(funcref(self, "update_game"))
	state_stack.push_back(funcref(self, "update_oya"))
	
func _process(delta):
	if state_stack.empty():
		return

	var state = state_stack.pop_back()
	if state == null:
		return
		
	if state is FuncRef:
		state_stack.push_back(state.call_func())
		return
		
	if not (state is GDScriptFunctionState and state.is_valid()):
		printerr("Invalid state")
		return

	state_stack.push_back(state.resume())

func update_oya():
	yield()
	print("update oya")
	yield()

func update_game():
	print("update game")