An ongoing effort to have an elegant demonstration of a game area moving around a centered player character. It works, but it is not elegant yet!
https://stackoverflow.com/questions/41390289/javafx-having-pane-follow-game-character
https://blog.e-zest.com/sliding-in-javafx-its-all-about-clipping/
https://fxdocs.github.io/docs/html5/#_absolute_positioning_with_pane