Save game data on new Mac

I noticed that my iTunes duplicated a lot of the music files, and when I deleted the duplicated stuff, I also deleted the settings and iPhone sync files on accident, and so now whenever I plug my iPhone into my macbook pro it treats it as an iPhone it has never seen before, and it tells me if I want to sync apps that it would have to delete the previous apps that are on there and install the ones on my laptop. Is there anyway to have it keep the saved game data so I don't lose that?