How to set font size of SKLabelNode to fit in fixed size (Swift)

Question

I have a square (200X200) with a SKLabelNode in it. The label shows score and it my be reach a large number. I want fit the number in the square.

How c

Answer 1

I have written this for the width, but you can adapt it to the height to fit your CGRect. In the example, pg is a SKLabelNode initialized with the font you are using. Arguments are your String and the target width, and the result is the size you want to assign to your SKLabelNode. Of course, you can also put directly your SKLabelNode. If the size is too big, then the max size is 50, but that's personal.

 func getTextSizeFromWidth(s:String, w:CGFloat)->CGFloat {

    var result:CGFloat = 0;
    var fits:Bool = false
    pg!.text=s
    if(s != ""){
      while (!fits) {
        result++;
        pg!.fontSize=result
        fits = pg!.frame.size.width > w;
      }
    result -= 1.0
    }else{
        result=0;
    }

    return min(result, CGFloat(50))
}

Edit: Actually, I just realized I had also written this:

extension SKLabelNode {
func fitToWidth(maxWidth:CGFloat){
    while frame.size.width >= maxWidth {
        fontSize-=1.0
    }
}

func fitToHeight(maxHeight:CGFloat){
    while frame.size.height >= maxHeight {
        fontSize-=1.0
    }