Instead of maintaining 2 separate variables for my exported node path, like this:
extends Node2D
export(NodePath) var target_path
var target_node
func _ready():
target_node=get_node(target_path)
is there any way to export only 1 variable and directly get the node?
Godot 4 with GDScript 2 offers an even more concise way to export only one variable and directly get a node.
@export var target_node: Node
This also offers the advantage of setting constraints on the type of the node, where Node could be replaced by Node2D, Control, or even a node with a script attached that you've defined using class_name.
@export var camera: Camera2D
@export var fancy_camera: MyCamera2D
There is, and it's a one liner:
extends Node2D
export (NodePath) onready var target_node=get_node(target_node)
Turns out someone did it 2 years ago.
With Godot4 Script the one-liner doesn't work anymore, as you'd write:
@export_node_path @onready var target_node=get_node(target_node)
which produces these errors:
Could not resolve member "target_node": Cyclic reference.
"@export_node_path" annotation requires a variable of type "NodePath" but type "Node" was given instead.
The "@onready" annotation will make the default value to be set after the "@export" takes effect and will override it. (Warning treated as error.)
So you'll have to write 2 lines:
@export_node_path var target_node
@onready var _target_node = get_node(target_node)
