Allow access to editor's Camera2D/3D

[p10tr3k]

Describe the project you are working on

I work on project in which I read camera.zoom property to properly display my entities when I zoom out significantly.

Describe the problem or limitation you are having in your project

I would like to have the ability to do the same when I am designing the scene. Currently I have to do some ugly workarounds to achieve this. (Initial code is not mine, I found it somewhere and adapted for my purpose):

extends EditorPlugin

class_name EditorCameraHelper

const NODE_2D_VIEWPORT_CLASS_NAME = "CanvasItemEditorViewport"


var _editor_interface : EditorInterface
var _editor_viewports : Array = []
var editor_cameras : Array = []


func _init():
	_editor_interface = get_editor_interface()
	_find_viewports(_editor_interface.get_base_control())
	for v in _editor_viewports:
		_find_cameras(v)


func _find_viewports(n : Node):
	if n.get_class() == NODE_2D_VIEWPORT_CLASS_NAME:
		_editor_viewports.append(n)

	for c in n.get_children():
		_find_viewports(c)


func _find_cameras(n : Node):
	if n.get_class() == "EditorZoomWidget":
		editor_cameras.append(n)
		return

	for c in n.get_children():
		_find_cameras(c)

then in my code I can do:

func _ready():
	if Engine.is_editor_hint():
		_editor_camera_helper = EditorCameraHelper.new()
		_camera = _editor_camera_helper.editor_cameras[0]
	else:
		_camera = get_tree().get_first_node_in_group(Global.Groups.Camera)

func _process(delta):
	zoom_level = _camera.zoom if Engine.is_editor_hint() else _camera.zoom.x
	...

(currently it is not working as I want due to bug I have reported here 85524)

Describe the feature / enhancement and how it helps to overcome the problem or limitation

Provide a API to access editor's Camera.

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

N/A

If this enhancement will not be used often, can it be worked around with a few lines of script?

N/A

Is there a reason why this should be core and not an add-on in the asset library?

N/A

[RedMser]

Why not use EditorInterface.get_editor_viewport_2d().get_camera_2d() or equivalent 3d methods? Needs Godot 4.2 btw.

[TokisanGames]

This is a duplicate of #1302 and has already been addressed by godotengine/godot#75694 and godotengine/godot#68696. The last link shows how to get all 3d editor cameras and the 2d transform.

@akien-mga

[Calinou]

Closing per the above comment.