DMA's Lemmings 1 Editor Manual

[Simon]

Hi,

digging through the links on Lemmings Universe (post here on LF), I found Mike Dailly's blog from 2021 through now. There is a page for all Lemmings images of the blog. Among those, there are scans of the

Manual of DMA's Lemmings 1 editor:
Page 1
Page 2
Page 3
Page 4
Page 5

On page 2, we learn that "X Co-ordinate goes from 0-1599, Y Co-ordinate goes from 0-199 although this includes the icons which do not form part of the level. (Not in this Universe anyway.)" Thus we should deduct some space from the Y range, but there is no reservation about the X range.

It follows that Lemmings 1 levels (Amiga at least?) are really 1600 pixels wide. On DOS, we can only see 1584 pixels, the screen cannot scroll all the way to the right. Nonetheless, through x = 1599 and even beyond, the unscrollable emptiness behaves like air until even the right edge eventually becomes solid.

On page 5, we learn what you can do with behind mode a.k.a. no-overwrite mode: "This applies to object mode as well, for such things as hidden exits."

-- Simon