Endless scrolling (repeating) background in Spritekit game - Swift

Question

I want to Create a endless scrolling background for my spritekit game, iT should consist of one or two images probably, which repeat themselves? I found these one and two exampl

Answer 1

You don´t need all that.

Just use this function with the vars that you declared and the attributes that you used in didMoveToView.

func backgroudScrollUpdate(){
    background1.position = CGPointMake(background1.position.x, background1.position.y - 1)
    background2.position = CGPointMake(background1.position.x, background2.position.y - 1)
    if background1.position.y == -UIScreen.mainScreen().bounds.height{
        background1.position = CGPointMake(0, 0)
        background2.position = CGPointMake(0, 0 + UIScreen.mainScreen().bounds.height)
    }
}

Then just call it in your update method.

Of course, it is not the best way since it is readable for two images, when you have more go for a loop.