The signal 'screen_exited' not emitted immediately when the richtextlabel move out of the screen

origami

I make a simple type game.

I add a Visibilityotifier2d to the word scene, and connect the screen_exited to Outsight function which print('out sight'),

I change the height of the richbox just fit the height of the font.

question now is when I cant see one word on screen, the 'out sight' is not print out immediately, need to wait about 3 secs. Why this happens.

pkowal1982

Not sure why it takes 3 seconds. Docs say that VisibilityNotifier2D:

Detects approximately when the node is visible on screen.

Note: For performance reasons, VisibilityNotifier2D uses an approximate heuristic with precision determined by ProjectSettings.world/2d/cell_size. If you need precise visibility checking, use another method such as adding an Area2D node as a child of a Camera2D node.

So use another method of visibility checking, maybe change your _process() to:

func _process(delta):
	rect_position.y += FallDownSpeed * delta
	if rect_position.y > get_viewport().size.y:
		OutSight()