Pausing this project

Pausing this project for now to work on Advent of Code. I need to re-think, as how things stand at the moment, it isn't possible to have two sprites in the game-cube location at the same time, and process the overlaps correctly.

Either I need to constrain character and NPC movement to never meet, or I need to move from the tile-based sorting method with 2d sprites I am currently using, to proper 3d models and use a z-buffer.

I also need to source some proper graphics, instead of creating them myself programatically/procedurally.