class GameScene: SKScene {

var button: SKNode! = nil

override func didMoveToView(view: SKView) {

    button = SKSpriteNode(color: SKColor.redColor(), size: CGSize(width: 100, height: 44))

    button.position = CGPoint(x:CGRectGetMidX(self.frame), y:CGRectGetMidY(self.frame));

    self.addChild(button)


}

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {

    print("touches began touched")

    for touch in touches {
        let location = touch.locationInNode(self)

        if button.containsPoint(location) {
            print("button touched")

    }
}