- fog of war isn't drawn or updated when not controlling a character
- fixed topmost cells in the level not being placed in the cellgrid array, causing them to be ignored when enlarging the main path for the sub
- fixed slices of the diving suit sprite "bleeding" into the torso sprite
- Ruins are visible in sonar
- Fixed ruin generation algorithm occasionally creating too narrow rooms and placing corridors so that they're blocked by corners of a room
- Fix for wall textures being misaligned for map cells with no physics body
