     }
     
     func buildLeftBar(var transform transform: CGAffineTransform) -> SKShapeNode {
+        // TODO: Extract size and color
         let path = CGPathCreateMutable()
         CGPathMoveToPoint(path, nil, -100, 2)
         CGPathAddLineToPoint(path, nil, 0, 2)

    }
    
    func buildCenterBar() -> SKShapeNode {
        let path = CGPathCreateMutable()
        CGPathMoveToPoint(path, nil, -5, 2)
        CGPathAddLineToPoint(path, nil, 5, 2)
        CGPathAddLineToPoint(path, nil, 5, -2)
        CGPathAddLineToPoint(path, nil, -5, -2)
        CGPathAddLineToPoint(path, nil, -5, 2)
        
        let shape = SKShapeNode(path: path)
        shape.fillColor = SKColor.whiteColor()

    override init() {
        super.init()
        
        // TODO: Extract 40 offset
        let left = buildLeftBar(transform: CGAffineTransformMakeTranslation(-40, 0))
        addChild(left)
        
