quiz script

extends Node

var index = -1

func _ready():
    # make all questions answers invisible
    for question in Node.get_children():
      question.visible = false
      question.get_child(0).visible = false

    show_next_question()

func show_next_question():
    if index + 1 < Node.get_child_count():
        # increase the index by one and make the question
        index += 1
        Node.get_child(index).visible = true
    else:
        print("no more questions")

func _on_question_pressed():
    # Hide the current question and show its answer.
    var question = Node.get_child(index)
    question.self_modulate = Color(1.0, 1.0, 1.0, 0.0)
    question.get_child(0).visible = true

    # Create a 5-second timer to display the new question
    var tween = create_tween()
    tween.tween_interval(5)
    tween.tween_callback(question.set_visible.bind(false))