title: Swift: Make control buttons not move with camera
body: <p>I'm building a platform game, and I made the camera follow the player when he walks:</p>
  
  <pre><code>let cam = SKCameraNode()
  
  override func didMoveToView(view: SKView) {
      self.camera = cam
      ...
  }
  
  override func update(currentTime: CFTimeInterval) {
      /* Called before each frame is rendered */
  
      cam.position = Player.player.position
      ...
  </code></pre>
  
  <p>But, when the camera moves, the control buttons move as well
  <a href="https://i.stack.imgur.com/FL42d.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/FL42d.jpg" alt="enter image description here"></a></p>
  
  <p>What should I do to keep the control buttons static?</p>