Did you go through all of the official step by step tutorials? Step by step — Godot Engine (stable) documentation in English
They explain the basics, as it sounds like you don’t know how to properly do such basics. And this is surely covered in many places on the web, be it official docs or YouTube tutorials.
This is a question/answer website for specific questions. If you have one, you need to provide more information: scene structure, code you used, where it fails, what error it prints etc. otherwise it’s hard to help you.
Otherwise that’s all advice I can give:
To change position of an area using a path (or any node really) in one line (but there are other ways which might be more common in a real project):
get_node("Relative/Path/To/TheArea").position = the_new_position
Or with the $ shortcut:
$Relative/Path/To/TheArea.position = the_new_position
In projects where the node belongs to a scene and won’t be destroyed, it’s common to cache it in a variable in
_ready, using the
onready keyword, making the area even quicker to access in the script:
onready var area = $Relative/Path/To/TheArea.position
func _some_function() #Could be _process, _ready, custom func, etc
area.position = the_new_position
If you got access to a node from a signal like
body_entered, you might get the node as a function parameter called
body, so again, same syntax:
body.position = new_position
Of course that’s for
position, which is one of many other properties a node can have. The doc lists plenty others you can use. Some of them are nested, in resource etc. but requires you to know how resources work which links back to the basics etc.
But here I’m repeating what I’m sure was said in plenty other places.