temp = string.sub(Map[i],ii,ii)
      if table[temp] then   -- Checks if key exists in the table before painting
        gc:drawImage(table[temp], BlockSize*(ii-1), BlockSize*(i-1))
      endFirst he defines temp as the token you have on your map. This would be fine, since there should always be something on the map. But imagine there is a small mistake, and there isn't anything in the map or you're accidentally trying to paint outside of the map (e.g. row 5 when there are only 4 rows). Then temp doesn't exist. If you'd remove the if statement(trying to paint the tile directly) and temp all of a sudden doesn't exist, it will crash the entire program. The if statement prevents this. If temp exists, then it draws the accompanying image. If it doesn't, it skips to the next thing to do.
Table, I think, you should replace with either object or frontObject.

I hope I explained it correctly, correct me if I'm wrong someone

I understand now, thanks.

Well as long as updates keep coming, I'm glad. I'd really like to see this project finished.

Sorry for the slow development this is just because I find LUA incredibly boring. I prefer C#. Sorry but I don't think this will ever be finished.

What's boring on it? If you know the language well enough, you can do awesome stuff with it.

Have you considered giving C a try? It would allow you to continue working on a TI-Nspire version as well as one for the computer.

You actually don't need to install MSYS anymore to develop for Ndless.
Did you try the latest standalone Ndless SDK that includes everything you need to edit, build et test your C programs?

That's not too hard. C for the nspire is just like C for the computer, but you have other libraries and stuff. I think everything you need is in the SDK.

Nice