godot – How do you make a maintain observe like in FNF

I need to make a longnote like within the recreation Friday Evening Funkin.

If you do not know FNF that is the lengthy notes: https://www.youtube.com/watch?v=dXZ5Zmnk6Yg

Code:

if (Enter.is_action_pressed("up")) or (Enter.is_action_pressed("down")) or (Enter.is_action_pressed("proper")) or (Enter.is_action_pressed("left")):
        mouseheld = true
    else:
        mouseheld = false
    if (isLongNote == true) and (Enter.is_action_just_pressed("up") and touching == true and sprite.rotation_degrees == 0) or (Enter.is_action_just_pressed("down") and touching == true and sprite.rotation_degrees == -180) or (Enter.is_action_just_pressed("proper") and touching == true and sprite.rotation_degrees == 90) or (Enter.is_action_just_pressed("left") and touching == true and sprite.rotation_degrees == -90):
        createAEffect()
        print(mouseheld)
        if mouseheld == false:
            Singletons.dangerous()
            queue_free()
        print(mouseheld)
        # COMMENT HERE
        if mouseheld == true:
            print('rlly good')
            Singletons.sick()
            queue_free()
        else:
            print('...')
            Singletons.good()
            queue_free()

The issue is at the place I put a remark, I attempted to place a yield perform (principally wait a second and see if the mouse continues to be held) however the yield perform (yield(get_tree().create_timer(1)), “timeout”) did not work (for some motive doesnt work within a perform)

Is there a greater approach to do that?