Möbius Sweep

Description

Back in May of 2008, I wrote a basic minesweeping game in C, the core of which is still essentially unchanged in this version. Apart from rewriting the game using a different language and a new engine, however, there has been one key change: the game is now played on a Möbius strip.

You may have encountered a Möbius strip before, but the basic idea is that you start with a sheet of paper, and glue two edges (in this game, the top and bottom) together. Gluing them in the usual way would create a cylinder; to get a Möbius strip instead, give the paper one half-twist before gluing the two edges.

In the game, for simplicity, this twisting and gluing is achieved by allowing the cursor (represented with a '+') to loop around the board, appearing on the opposite side. Moreover, points on the top and bottom edges are considered to neighbor one another, with the bottom edge flipped with respect to the top.

Finally, yes, this is a "Morbius sweep" joke in 2023. I'm (not entirely) sorry.

Controls

Arrow keys: move the cursor
Enter: reveal the square under the cursor
'f': flag/unflag the square under the cursor
'r': reload