This is pretty simple but I thought some devs might find it useful as an easy way to add a minimap to your game. It uses tline to draw a miniature version of the full map area to screen (during your _draw loop):

for i=0,64 do tline(0,32+i,128,32+i,4/8,4/8+i,1) end

The representative pixel is drawn from the center (4/8,4/8) of each sprite, but you can alter this if you want a different selection.

Here's an example of what this looks like in Celeste:

And here's Air Delivery with this line added:

Obviously it can be a bit messy raw, but it's accurate. For your own project, you could put this against a solid background color in your pause menu, for example. And then you might add an indicator for player position ;)

I hope this can be useful out there!

Super useful! Tanks for this!