将视差效果添加到SKSpriteNode而不是UIView

Question

所以我需要在场景中对SKSpriteNode实现视差效果。我以前在单视图应用程序中使用UIImageViews，但现在我面临以下问题：SKSpriteNodes没有属性addMotionEffect。我一直在寻找，似乎找不到类似的东西。我用于单一视图应用的代码：

@IBOutlet weak var x: UIImageView!

override func viewDidLoad() {
    applyMotionEffect(toView: x)
}

func applyMotionEffect(toView view:UIView) {
    let xMotion = UIInterpolatingMotionEffect(keyPath: "center.x", type: .tiltAlongHorizontalAxis)
    xMotion.minimumRelativeValue = -10
    xMotion.maximumRelativeValue = 10

    let yMotion = UIInterpolatingMotionEffect(keyPath: "center.y", type: .tiltAlongVerticalAxis)
    yMotion.minimumRelativeValue = -10
    yMotion.maximumRelativeValue = 10

    let group = UIMotionEffectGroup()
    group.motionEffects = [xMotion, yMotion]

    view.addMotionEffect(group)
}

我需要实现这样的目标：

spriteNode.addMotionEffect(group)