Reddit reviews GD Script: Godot 3.1 game engine

hello, u/jaykyburz ,

Tree_exiting is the first signal after queue_free() and then tree_exited in the next frame.

• tree_exited ( ) # Emitted after the node exits the tree and is no longer active.
  
• tree_exiting ( ) # Emitted when the node is still active but about to exit the tree. This is the right place for de-initialization (or a “destructor”, if you will).
  
  For code example: Make a 2D scene with label and timer for example. Label with two signal tree_exiting and tree_exited, timer with Autostart, One-Shot, and WaitTime from 1.2.
  
  extends Node2D
  onready var test = false
  func _process(delta):
  if test == false:
  if $Label.is_inside_tree():
  print("Exiting")
  $".".print_tree_pretty()
  else:
  print("Exited")
  $".".print_tree_pretty()
  
  func _on_Timer_timeout():
  $Label.queue_free()
  test=true
  
  func _on_Label_tree_exited():
  print("Signal: Tree exited")
  
  func _on_Label_tree_exiting():
  print("Signal: Tree exiting")
  
  Explanation from the book "GD Script"
  
  https://www.amazon.com/GD-Script-Godot-game-engine-ebook/dp/B07VR8TVWC
  
  I hope this was useful.