This looks really great. I'm ashamed to admit I had never heard of it before now. If I'm ever going to learn how to map, I'll use your tutorials -- I learned a few things from JB's map faq, but mostly just for coding purposes. Your guide is more visual, and hence more useful for actual mapping instruction.
EDIT: Hey, is there some reason why the whole thing couldn't be put online and linked to the EDuke32 wiki section on level editing?
http://wiki.eduke32.com/wiki/Level_editingEDIT2: I don't know if I will actually take up mapping (seems doubtful) but I've been looking through the beginning of the tutorial, and I must say it is very well written and put together. Here's an example of what's so great about it
White lines are one-sided walls, meaning that only one wall exists. The other side is facing invalid player space, therefore no wall exists on that side. A red line is a two-sided wall, meaning that the player can be on either side of that line, and both sides have seperate attributes.
That is the first time I have ever seen that explained, and it is explained in very clear, logical language. It really helps someone like me to have concepts explained to them, rather than just getting a series of instructions about how to make this or that. With the concept in mind, I have a better understanding that I can apply in new situations.
