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Title                   : Right Scroll
Filename                : rtscroll.wad
Author                  : Andrew Stine
Email Address           : [email protected]
Misc. Author Info       : Internet nerd

Description             : Play it.  Holy poop on a stick, that texture is
                         scrolling the wrong way!!!  This is incredible!!!
                         If only this was known ten years ago people might
                         have cared!!!!

                         For the more technical minded, the trick is done by
                         creating a whole ton of extra linedefs with the wall
                         scroll special which all reference the same sidedef
                         as the one you want to scroll backwards.  You need
                         to reference the sidedef an additional X-1 times,
                         where X is the width of the texture in pixels.

                         While a backwards-scrolling texture is the most
                         obvious trick, you can also change the number of
                         extra sidedef references to just make the scrolling
                         texture haul ass super fast.

                         Another idea would be to make a super-wide texture
                         comprised of smaller "frames" placed side by side,
                         i.e. make a giant wide texture with individual
                         32-pixel-wide frames side by side.  Then make 31 extra
                         sidedef references and the texture will appear to
                         animate at 35 FPS because the texture will shift over
                         32 pixels every tic to the next "frame."

Additional Credits to   : Adam Williamson for making an old DM WAD
                         Jon Rimmer for noticing the fast-scroll walls in it
                         Cyb for knowing the extra-sidedef trick behind it
                         Me for getting anyone to think about it in the first
                         place
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* Play Information *

Game                    : Doom 2
Episode and Level #     : MAP01
Single Player           : Yes
Cooperative 2-4 Player  : No
Deathmatch 2-4 Player   : No
Difficulty Settings     : Not implemented
New Sounds              : No
New Graphics            : No
New Music               : No
Demos Replaced          : None

* Construction *

Base                    : New level from scratch
Editor(s) used          : Doom Builder, XWE
Known Bugs              : Only works on source ports that don't automatically
                         unpack sidedefs.  This does not include ZDoom :(


* Copyright / Permissions *

Authors MAY use this level as a base to build additional
levels.

You MAY distribute this WAD, provided you include this file, with
no modifications.  You may distribute this file in any electronic
format (BBS, Diskette, CD, etc) as long as you include this file
intact.

* Where to get this WAD *

Right next to this text file

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