AddSubview from different file?

You can't call a method on an object you don't have a reference to. Your view controller needs to know about bombImage or your bomb needs to know about your view controller. You could make bombImage a property of bomb and then in your view controller do this.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.