Question

Preface: I’m very new to objective-c and I am doing simple exercises to learn in order to progress as a developer.

1. Let’s say we’re playing a memory game. You start with two images: a
   cow and a pig.
2. A word is shown (cow or pig) and you click a corresponding button.

My problem: How do I progress the user to four cards the six and so-on? Quasi-levels of a game, I guess…or more simply.

Second question: If it were simply one static set of cards (four), how do I allow time between the success message and a reset of the board?

I’m asking more hypothetically, but exact answers would be helpful too so I can understand more about syntax.

If this is confusing, I’m sorry. 🙂 Any information is welcomed!

Answer 1

How do I progress the user to four cards the six and so-on?

“Sequence” == “State”

State is usually maintained with instance variables… so, how about a numberOfCards variable? And maybe a numberOfGamesPlayed variable as a factor in deciding when to increase the number of cards?

If it were simply one static set of cards (four), how do I allow time between the success message and a reset of the board?

Tons of options… two decent ones are:

• NSTimer
• performSelector:withObject:afterDelay: