I found the problem. I was using middleclass.lua in order to handle classes, and TileTable was being filled up by an alternate constructor for the class Tile. This appears to cause a mess of problems. If you're using middleclass, just bite the bullet and use the same constructor.

I was working on a pathfinding system in a 2D tile grid when I noticed that the following function is ALWAYS returning tiles with the coordinates 26, 15. -- Find Orthogonally Adjacent Tiles --- Returns an array containing the north, east, south, and west tiles --- to this tile. --- North is indexed ...

Solved it! For some reason, building being a subclass of entity made it to where a new building call affected all buildings. By separating building and making it its own class and putting it in the same file as its data, the buildings are now their own objects.

Yes. On second though it'd probably be better to not nest the entity draw. Thanks for pointing that out!
You'll find a lot of this code is... not great. Hence the buildings all changing.

Hi there! So, I have function call to construct a building on a selected tile. Each tile has an entity variable, and an entity can be initialized as a building (as a subclass of entity). However, when I build a building on a selected tile, all previous buildings turn to the building type I choose. S...

That was it. Thank you so much!

I can't help but express incredible anger at the amount of time I spent when it was just a typo...

Hey there, newie lua-er here! I'm using middle class to help with some OOP stuff, as that's how I like to program. However, I'm having some problems with it. I'm using an array to hold a bunch of tile objects. When I try to get the sprite variable out, it returns a nil value. I'm perplexed as to why...