How to addChild to a already built overlaySKScene in SWIFT - ios

Question

Ok so I have all of the parts. Finally the code runs without a problem but right as I'm in the last step, trying to figure out how to add the child I'm having trouble. I created an overlay scene that is over the original Scene but I can't figure out the last step which is added the node/image to the actually screen because the traditional self.addChild(%^%) doesn't work on the "base" node in my code. Any help. Thanks
Code:
import iAd
import UIKit
import GameKit
import SceneKit
import StoreKit
import SpriteKit
import QuartzCore
import Foundation
import AVFoundation
import AudioToolbox
//============================================================
class GameViewController: UIViewController, ADBannerViewDelegate, SKPhysicsContactDelegate, SKSceneDelegate, SCNSceneRendererDelegate, SCNPhysicsContactDelegate{
//--------------True-False-statments-------------------------------------------------
var stickActive:Bool = false
var OnOffense = Bool()
var OnDefense = Bool()
var HasBall = Bool()
var OnCampusField = Bool()
var UserControlled = Bool()
//--------Offense-------------
var QuaterBack = SCNNode()
var RunningBack = SCNNode()
var WideReceiver1 = SCNNode()
var WideReceiver2 = SCNNode()
var Linemen1 = SCNNode()
var Linemen2 = SCNNode()
var Linemen3 = SCNNode()
//--------Defense-------------
var LineBacker1 = SCNNode()
var LineBacker2 = SCNNode()
var CornerBack1 = SCNNode()
var CornerBack2 = SCNNode()
var DefensiveLinemen1 = SCNNode()
var DefensiveLinemen2 = SCNNode()
var DefensiveLinemen3 = SCNNode()
//-----------------Controller-Buttons/Joystick---------------------------------------------------
let base = SKSpriteNode(imageNamed:"VirtualJoystickBase")
let ball = SKSpriteNode(imageNamed:"VirtualJoyStickHandle")
let ship = SKSpriteNode(imageNamed:"Ship")
let Button1 = SKSpriteNode(imageNamed:"BlackAButton")
let Button2 = SKSpriteNode(imageNamed:"BlackAButton")
let Button3 = SKSpriteNode(imageNamed:"BlackAButton")
let Button4 = SKSpriteNode(imageNamed:"BlackAButton")
//-------------------3D-Fields--------------------------------------------
let FieldScene = SCNScene(named: "art.scnassets/TesingCampusField.dae")!
//-------------------3D-Players--------------------------------------------
let GuyScene = SCNScene(named: "art.scnassets/Guy.dae")!
override func viewDidLoad() {
super.viewDidLoad()
let scnView = self.view as! SCNView
let skScene = scnView.overlaySKScene
scnView.overlaySKScene = skScene
scnView.backgroundColor = UIColor.whiteColor()
scnView.scene = FieldScene
scnView.delegate = self
scnView.allowsCameraControl = true
scnView.showsStatistics = false
let Guy1: SCNNode = GuyScene.rootNode.childNodeWithName("Bob_014", recursively: true)!
FieldScene.rootNode.addChildNode(Guy1)
//----Positioning-the-Base-of-the-Joystick-----------
base.size = CGSize(width: 100, height: 100)
base.anchorPoint = CGPointMake(-3.4, -5.2)
skScene?.self.addChild(base)
//----Positioning-the-Ball/Joystick-----------
ball.size = CGSize(width: 50, height: 50)
ball.position = base.position
//---Setting-Up-Ships-Position/PhysicsBody---------------------
ship.position = CGPointMake(0, 200)
ship.size = CGSize(width: 80, height: 80)
ship.physicsBody?.dynamic = true
ship.physicsBody?.allowsRotation = true
ship.physicsBody?.affectedByGravity = true
ship.physicsBody = SKPhysicsBody(texture: SKTexture(imageNamed: "Ship"), size: ship.size)
//----A-Button--Creation -------------------
Button1.size = CGSize(width: 40, height: 40)
Button1.anchorPoint = CGPointMake(-3.4, -5.2)
//----B-Button--Creation -------------------
Button2.size = CGSize(width: 40, height: 40)
Button2.anchorPoint = CGPointMake(-1.2, -5.2)
//----C-Button--Creation -------------------
Button3.size = CGSize(width: 40, height: 40)
Button3.anchorPoint = CGPointMake(-2.2, -6.4)
//----C-Button--Creation -------------------
Button4.size = CGSize(width: 40, height: 40)
Button4.anchorPoint = CGPointMake(-2.2, -3.4)
let tapGesture = UITapGestureRecognizer(target: self, action: "handleTap:")
scnView.addGestureRecognizer(tapGesture)
//--------------------------
let cameraNode = SCNNode()
cameraNode.camera = SCNCamera()
FieldScene.rootNode.addChildNode(cameraNode)
cameraNode.position = SCNVector3(x: 0, y: 5, z: 15)
//-----------------------------------------------
let lightNode = SCNNode()
lightNode.light = SCNLight()
lightNode.light!.type = SCNLightTypeOmni
lightNode.position = SCNVector3(x: 0, y: 10, z: 10)
FieldScene.rootNode.addChildNode(lightNode)
//-----------------------------------------------
let ambientLightNode = SCNNode()
ambientLightNode.light = SCNLight()
ambientLightNode.light!.type = SCNLightTypeAmbient
ambientLightNode.light!.color = UIColor.darkGrayColor()
FieldScene.rootNode.addChildNode(ambientLightNode)
//----------------------------------------------
}
func GotoMainMenu() {
let scene = MainMenuController()
let sKView = self.view! as! SKView
sKView.ignoresSiblingOrder = true
scene.size = sKView.bounds.size
scene.scaleMode = .AspectFill
let reveal = SKTransition.fadeWithDuration(0.45)
sKView.presentScene(scene, transition: reveal)
}
//====================================================================
override func shouldAutorotate() -> Bool {
return true
}
//====================================================================
override func prefersStatusBarHidden() -> Bool {
return true
}
//====================================================================
override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
if UIDevice.currentDevice().userInterfaceIdiom == .Phone {
return .AllButUpsideDown
} else {
return .All
}
}
//====================================================================
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Release any cached data, images, etc that aren't in use.
}
}