How to translate code from swift to Objective-C?

Question

Objective-C

Good day, I’ve been writing on Obzhektev for a year and I’ve recently started studying Swift
But I need to translate 1 small class, I can’t figure out what to stick there)
Can anyone help me translate it to objective?
pastebin.com/zBih0vd6
(the class is really small)

Answer 1

Do not "stick", but translate in parts, for each syntactic construction, look for an analogue in Objective-C.
That's what happens when you try to study only one thing!
It is strange that only after 2 years "surfaced"!