BUGS:
    - resize -> Hud issues

TODO:
    - Animations
        - selected Hex
    - battle description
        - dice roll
    - tutorial
        - moves
        - HQ moves
        - objectives
        - engagement

NEXT:
    - support different board layout
        - north orientation
        - hex orientation
        - inverted even/odd row scheme
    - automatic overlays to show unit stack depth