Events, Scrolling

For events, I was thinking of using publish/subscribe to connect the game's components and systems with each other. In that case I'd try to use an existing library, and PyPubSub might be an option. Might also consider extracting the dispatch module from Django (docs) if it's independent enough. Though I don't know enough about the performance consequences of something like this, and performance is going to be a significant issue soon.

I'll need to do another rewrite soon, because the code is not at all designed to handle a scrolling viewport. Too much of it is based on assumptions about the screen being a single map. There are a lot of design issues to work out before that can happen properly, and at the same time I should think about reducing the amount of unnecessary work done on each frame. I likely won't be able to manage that before Saturday.

In the end, scrolling might be something that's better off dropped, because it substantially complicates many parts of the game. It depends on whether I'd be able to find the right abstraction to limit that.