When editing the dungeon file, it pays to have a good text editor. A nice program in Windows might be, for example, Programmer’s Notepad 2, but any program with suitable syntax highlighting will do. The script file text is based on C/C++ syntax, so you can set the syntax highlighting to this language. It is also highly prudent to select a mono-space typeface. A mono-space typeface means each character has the same horizontal length in the editor. Because we are also going to “draw” with ASCII characters in the script files, it would be good if the characters can properly align in a grid-like fashion, making it easy to identify the geometrical patterns. This is indispensable when it comes to laying out large rooms and even particular dungeons, helping to avoid confusion along the way. Suitable typefaces to consider for this purpose might include [https://en.wikipedia.org/wiki/Consolas Consolas], [https://en.wikipedia.org/wiki/Courier_%28typeface%29#Courier_New Courier New] or [https://en.wikipedia.org/wiki/Lucida#Lucida_Console Lucida Console] fonts, or any [https://fonts.google.com/?category=Monospace other suitable monospace font].