So I am working on a tile map editor (taking a break from it now)
hereand I wrote several useful things involving it
one of which is a viewer for my specialized map format.
I just rewrote that program in ruby for rbSFML and rbSFML runs it perfectly!
I am also posting the source code for it which is available here
downloadYou need the latest commit of rbsfml in order to use this.
You can use this code to help out on your game.