get signal last in frame emitting

signal_last_in_frame.gd

# not reusable/ abstraction needed

	tabcont.connect("tab_changed", self, 'on_signal_tab_changed')
	connect("tab_changed__last_in_frame", self, "on_tab_changed__last_in_frame")

signal tab_changed__last_in_frame
var started: = false

var result:int
func on_signal_tab_changed(tab:int):
	result = tab
	if !started:
		started = true
		yield(VisualServer, "frame_pre_draw")
#		yield(get_tree(), "idle_frame")
		emit_signal('tab_changed__last_in_frame', result)
		started = false

# ensures this is the most recent emitted signal in the frame
func on_tab_changed__last_in_frame(tab):
	printt('tab changed!', tab)