Here is a pacman clone simply because I enjoy reproducing games with gameplay faithful to the original. Pacman has introduced a number of interesting wrinkles that I haven't covered before -- important gameplay sound, (basic) path finding and interesting artwork.
The pmlib directory is supposed to be a pure backend with virtually no front
end rendering assumptions. It operates a grid with (presumed) square cells and
places paku and the ghosts with floating point coordinates on that grid. It is
the responsibility of the front end to render these floating point locations
across cells as needed.
Each character takes a callable for the logic function which must return a
direction in which to travel. The pmlib core moves the character one epsilon
move distance every game iteration. The logic function takes a state
dictionary which allows the developer of the logic function to retain state
across iterations to have a longer term plan.
An emerging design element is that each ghost character should be associated with an immediate plan of the path it will take. The first plan is how to get out of the ghost box and is planned directly from the map. Subsequent plans are developed by the ghost logic function. These plans are little more than a list of adjacent cells on the map and the navigation engine contains the core logic to advance the ghost through those cells - including around corners. These list of adjacent cells through which to navigate are called "bread-crumb trails".
I generate the walls as png files for each grid cell and painted directly against each other. See the artwork folder for the source files.
A proof-of-concept console rendering should be included. It would be best viewed in a square font such as https://strlen.com/square/ .
QPainter in a QWidget.
Every render call sends out a (hopefully small?) updated board and this could be passed to a JS front-end. Render to HTML canvas.