How to design around lack of multiple inheritance?

You want classes to have separate properties. Have you considered coding exactly that?

I've done once a similar app. With a earlier "C++" compiler that supported only single inheritance and no interfaces, at all.

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.