@Yehuda ... yeah. Ever since greenfoot transitioned to converting to javascript, UserInfo images have been "unobtainable?" and collection thumbnails fail to set. UserInfo images probably are still fine in legacy version, however.
You will have a major issue with grid worlds. The Camera class constructors would take a (20, 20, 60) world and make a Camera of (600, 400, 60) -- much larger than the world it is looking at.
@Super_Hippo, the sides are inexorably linked to the axes of cube rotations and, in changing that, the direction of rotation for at least one will change, making a big mess out of things.
2020/4/2
Asteroids w/improved QActor SuperClass
2020/4/2
Asteroids w/improved QActor SuperClass
2020/3/26
Basic 3x3 Cube
2020/3/25
Sliding Puzzle
2020/3/24
Camera package
2020/3/21
Basic 3x3 Cube
2020/3/21
Basic 3x3 Cube
2020/3/21
Basic 3x3 Cube
2020/3/20
Basic 3x3 Cube