Resolution

[DerVVulfman]

Resolution edits are fine and all, but the map will remain at the default 20 tiles across x 15 tiles down. So.... you'll need a tilemap system. This is what can expand your system to work with areas beyond the typical 640x480 window. SephirothSpawn and Me™ have both made Tilemap scripts and are both highly recommended.

Or else, if you want to retain the 20x15 drawn map, you could fill the black areas with a window/hud.