         fatalError("init(coder:) has not been implemented")
     }
     
-    func buildLeftBar(var transform transform: CGAffineTransform) -> SKShapeNode {
+    private func buildLeftBar(var transform transform: CGAffineTransform) -> SKShapeNode {
         // TODO: Extract size and color
         let path = CGPathCreateMutable()
         CGPathMoveToPoint(path, nil, -100, 2)

        return shape
    }
}

private class Nose: SKNode {
    override init() {
        super.init()
        // TODO: Implement
        addChild(SKSpriteNode(color: SKColor.greenColor(), size: CGSize(width: 20, height: 20)))
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}

        return shape
    }
    
    private func buildCenterBar() -> SKShapeNode {
        // TODO: Extract size and color
        let path = CGPathCreateMutable()
        CGPathMoveToPoint(path, nil, -5, 2)
