How to quickly stop updating a sprite set?

You can use bool

to do this, for example, when your game just does it true

and put an if condition in your update method, for example:

override func update(currentTime: NSTimeInterval) {
    // It will execute till gameOver is false but when you make your gameOver true then it will not execute.
    if !gameOver {

        //Do your stuff
    }
}

      

        
        
        
      

    

Hope this helps you.