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Godot 4 and GDScript - Part 3 (the lifecycle)
title: Godot 4 and GDScript - Part 3 (the lifecycle)
sources: https://www.youtube.com/watch?v=yGXZFSs0jt8
media_link: https://www.youtube.com/watch?v=yGXZFSs0jt8
Authors:
- "[[FencerDevLog]]"
contentPublished: 2023-10-06
noteCreated: 2024-11-26
description: "📖 Godot 4 book: https://filiprachunek.gumroad.com/l/godot4💡 Get exclusive content on Patreon: https://www.patreon.com/FencerDevLog🚀 Space Shooter tutorial..."
tags:
- clippings
- video
takeaways:
subjects:
- "[[Node Lifecycle in Godot]]"
publish: true
Status: đź”´ DroppedDescription
📖 Godot 4 book: https://filiprachunek.gumroad.com/l/godot4💡 Get exclusive content on Patreon: https://www.patreon.com/FencerDevLog🚀 Space Shooter tutorial...
My Notes
- 00:36:
- 00:57:
_underscore methods like:_ready()- These are
virtualfunctions, provided by the library. - By default they do nothing.
- they are designed to be overridden by you and the engine will call them at the appropriate time.
- These are
_init()02:14:- Called when the node is initialized.
- called with
MyNodeType.new()
_enter_tree()02:55:- Called when the node is added to the scene tree
- We are guaranteed that the node has been added to the tree, but it may not be ready for use yet.
- 03:23
_ready()- called when all child nodes have been initialized and are ready
- 04:17:
_enter_tree()is called on each node from trunk to leaf_ready()is called from leaf to trunk- This is the opposite order from
_enter_tree()
- This is the opposite order from
- 04:52:
_exit_tree():- called when a node exits the tree, for example:
- after
remove_child() - after
change_scene_to_file("res://scene.tscn") - after
queue_free()
- after
- 06:34 how to ensure that a thread is terminated correctly:
- called when a node exits the tree, for example:
func _exit_tree():
if thread.is_alive():
thread.wait_to_finish()
- 05:20:
_process(delta):- called once every frame:
- delta is the elapsed time since the last frame
- 05:51:
_physics_process(delta):- called a fixed number of times per second. Usually 60 times per second
- 06:59
_input(_event):- this will be invoked for each input received.
- It's usually better to use
_unhandled_input(event)
- 08:06
_notification(what):- Use this to respond to miscellaneous, less common notifications
- Here is how to pause the game when the player clicks outside the window:
func _notification(what):
if what == MainLoop.NOTIFICATION_APPLICATION_FOCUS_OUT:
pause_game()
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