class_name CameraGrabber extends Node3D

static var _lock: NonReentrantCoroutineMutex
static func _static_init() -> void:
	_lock = NonReentrantCoroutineMutex.new()

@export var acquire_on_ready := true

var acquired := false

func _ready() -> void:
	if acquire_on_ready:
		acquire()

func acquire() -> void:
	if not acquired:
		await _lock.acquire()
		var camera := FX.get_camera() as Camera3D
		camera.global_transform = global_transform
		acquired = true

func _process(_delta: float) -> void:
	if acquired:
		var camera := FX.get_camera() as Camera3D
		camera.global_transform = global_transform

func relinquish() -> void:
	if acquired:
		acquired = false
		_lock.relinquish()

func _exit_tree() -> void:
	relinquish()