timeout not working properly

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:bust_in_silhouette: Asked By abecus

I am new to Godot and am following a pong tutorial, but the timer in initialize_positions() function does not work. I don’t know why also there is no error in code because the game runs well the only problem is with the timer.
Thanks in advance.

extends Node2D

var screen_size
var pad_size
var pad_speed
var ball_speed
var direction
signal updated

func _ready() -> void:
	screen_size = get_viewport().size
	# incresing the y dim. of pad beacuse, i have scaled the pad by factor 1.5
	pad_size = Vector2($Left.texture.get_size().x, $Left.texture.get_size().y*1.5)

func _process(delta: float) -> void:
	# get all position of the sprits (balls, left_pad, right_pad).
	var ball_pos = $Ball.get_position()+ ball_speed*delta*direction
	var left_rect = Rect2($Left.get_position()- pad_size*0.5, pad_size)
	var right_rect = Rect2($Right.get_position()- pad_size*0.5, pad_size)

	# checks for if ball is at roof or floor and changing it's direction
	if not (0<ball_pos.y and ball_pos.y<screen_size.y):
		direction.y = -direction.y

	# checks is ball is on a pad and changes the x direction and
	# randomizes the y direction of the ball
	if left_rect.has_point(ball_pos) or right_rect.has_point(ball_pos):
		direction.x = -direction.x
		direction.y = randf()*2 -1 # randf ->  float in range[0,1]
		direction = direction.normalized()
		ball_speed *= 1.1

	# update the ball's position

	if not (0<ball_pos.x and ball_pos.x<screen_size.x):
		yield(self, "updated")

	# Move left pad
	var left_pos = $Left.get_position()
	if left_pos.y>0+pad_size.y/2 and Input.is_key_pressed(KEY_W):
		left_pos.y += -pad_speed*delta

	if left_pos.y<screen_size.y-pad_size.y/2 and Input.is_key_pressed(KEY_S):
		left_pos.y += pad_speed*delta


	# Move right pad
	var right_pos = $Right.get_position()
	if right_pos.y>0+pad_size.y/2 and Input.is_key_pressed(KEY_UP):
		right_pos.y += -pad_speed*delta

	if right_pos.y<screen_size.y-pad_size.y/2 and Input.is_key_pressed(KEY_DOWN):
		right_pos.y += pad_speed*delta


func initialize_positions():
	pad_speed = 300
	ball_speed = 150
	direction = Vector2(-1,0)
	$Left.set_position(Vector2(10, screen_size.y/2))
	$Right.set_position(Vector2(screen_size.x-10, screen_size.y/2))
	yield(get_tree().create_timer(3.0), "timeout")
:bust_in_silhouette: Reply From: jacktype

The problem doesn’t seem to be with the timer statement. Check if your signal “updated” is correctly connected to a receiver.