Commit b030bf36

– improve/replace scrolling mechanics for a more consistent and snappy feel
– add a hotkey (C) to go back to the centre (coordinate 0,0)

The scrolling does indeed feel a lot nicer now.
The hotkey makes it a lot easier to do debugging, as leaving the OLives window always triggers scrolling and the user might be a bit lost when coming back to the window.

Commit a955c32c

hide walls that have a used tile behind them, depending on the angle of the camera

Besides the set the walls to be “always up” and “always down” add a third mode, that automatically puts the walls down if they are on the “inside” of a building. The overly simple method to determine this is if a tile that is not just ground/grass is behind that piece of wall – depending on the camera angle looking at it: