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                        How to Create Sliding Doors
                        By: Aphelion (a.k.a. PBoev)
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1. First of all, you have to make the two rooms and leave
   space for sliding doors in the middle. Do it like this:

___________________________________________________________
|                                                         |
|                                                         |
|                                                         |
|                                                         |
|                                                         |
|                                                         |
|_________________                       _________________|
                 |                       |
                /_____               _____\              /|\
                      ~~~~=-   -=~~~~                     '      
                \-----~~~~       ~~~~-----/             WHITE LINES (ALL)
                 |                       | 
 ________________|                       |_________________
|                                                          |
|                                                          |
|                                                          |
|                                                          |
|__________________________________________________________|

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2. Now you have to make red lines around the sectors to be sliding
   doors. Such as:

___________________________________________________________
|                                                         |
|                                                         |
|                                                         |
|                                                         |
|                                                         |
|                                                         |
|_________________                       _________________|
                 |.......................|
                /A____       :       ____B\                    
                      ~~~~=- : -=~~~~               ... = red lines
                 C----~~~~   :   ~~~~----D                               
                 \...........:.........../ 
 ________________|                       |_________________
|                                                          |
|                                                          |
|                                                          |
|                                                          |
|__________________________________________________________|

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3. Then move the veritices A, B, C and D onto the red lines to
   create the following. Note that the white lines will go over
   the red ones:

___________________________________________________________
|                                                         |
|                                                         |
|                                                         |
|                                                         |
|                                                         |
|                                                         |
|_________________                        ________________|
                 |                       |
                 ^^^^^^^^^^^^....^^^^^^^^^
                            ^ .  ^
                 ^^^^^^^^^^^^....^^^^^^^^^
                 |                       | 
 ________________|                       |_________________
|                                                          |
|                                                          |
|                                                          |
|                                                          |
|__________________________________________________________|


Red lines = .
Overlapping white and red lines = ^^^

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4. Finally, lo-tag the red sectors that outline the white sliding door
   sectors with a 25. Then place two Sector Effectors in each part of
   the red lines that have a lo-tag of 15. Each should be facing the way
   in which you want the door to swing:

   ........................................................................
   _______________________________   .   __________________________________
                                 |   .   |
                                 | >#. #<|
   ______________________________|   .   |_________________________________
   ........................................................................

Red lines = ...
White sliding door lines = __ ||
Sector effector = #
Rotation of SE = < or > (should be facing either left or right)

   For example, the SE on the right door should face (be rotated) left
and the SE on the left door should be rotated to face right.

   Be sure to add a GSPEED sprite -- it's the only way to make a sliding
door open up all the way, if it's a really long one... I didn't include
them in the example map, because it would confuse you even more...

               ====---- Look at SLIDING.MAP if you need any ----=====
               ====---- more help with sliding doors!       ----=====

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NOTE: This will only help you make sliding doors, and the ones you make will
      have a few bugs. You will discover how to fix them yourself, but at
      least you can now make sliding doors.

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                  By: Radoslav Boev (a.k.a. Aphelion)
                    E-mail: pboev@nyc.pipeline.com

Maps created: Alley, and working on two others, one a huge city and one an
              excellent DukeMatch level with awesome subways and lots of
              other cool stuff!
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