Scene switch godot

extends Node2D

onready var player = get_node("player")
onready var camera = get_node("player/Camera2D")
onready var temp = get_node("temp")
onready var transition = get_node("CanvasLayer/game-ui/transition")
var pauseUnits = false
var currentLevel = ""
var initLoad = true
var isDev = true

var sceneSwitchTimer = 0

const SCENE_SWITCH_TIME = 5

var allLevels = {
	"misc/level": preload("res://scenes/level/misc/level.tscn"),
	"misc/level-template": preload("res://scenes/level/misc/level-template.tscn"),
	"misc/test": preload("res://scenes/level/misc/test.tscn")
}

func _ready():
	if (isDev):
		switchLevel("misc/level-template")
		var pos = get_node("level/scene-switch-areas").get_children()[0].get_node("Sprite").global_position
		pos.y = pos.y - 8
		player.global_position = pos
	pass

func switchLevel(newLevel, positionAdjustment=Vector2(0, 0)):
	if (sceneSwitchTimer > 0):
		return
	
	pauseUnits = true
	transition.start()
	
	camera.smoothing_enabled = false
	
	sceneSwitchTimer = SCENE_SWITCH_TIME
	
	var levelNode = get_node("level")
	levelNode.name = "old-level"
	
	clearTempObjects()
	levelNode.queue_free()
	
	var scene = allLevels[newLevel]
	var node = scene.instance()
	add_child(node, true)
	
	camera.setupCameraForLevel()
	
	if (currentLevel):
		var levelWithoutScene = currentLevel.split("/")[1]
		player.global_position = node.get_node("scene-switch-areas/" + levelWithoutScene + "/Sprite").global_position
		player.global_position.y = player.global_position.y - positionAdjustment.y
		player.global_position.x = player.global_position.x - positionAdjustment.x
	
	currentLevel = newLevel

func clearTempObjects():
	for child in temp.get_children():
		child.queue_free()

func handleTimers():
	if (sceneSwitchTimer > 0):
		sceneSwitchTimer = sceneSwitchTimer - 1
	else:
		camera.smoothing_enabled = true

func _process(delta):
	if (get_tree().paused):
		return
	
	handleTimers()