Does it use Bresenham's line algorithm? Just curious, because I recently used it for one of my projects and it comes up with lines that are very similar to the ones in Adventuring. I even did a few trickshots through unintuitive gaps using it to predict where to move to.
Also Bresenham's line algorithm is just amazing in general and so so so helpful for any drawing on a 2D array. I really wouldn't be surprised.