==============================
History Thing if Anybody Cares
==============================

Version 0.0
-----------
Implemented basic skeleton, file dialogs and menu progressions for
WAD files.  

V0.01 implemented profile saving and loading.  
V0.02 completely restructured the application for future considerations.

Version 0.1
-----------
Implemented skeleton routines and dialogs for map selections
and dialogs for editing.  Most window routines defined.  Basic
IWAD recognition and palette loading.  Most menu functionality
put in place and coded.  

V0.11 implemented background bitmap and window adjustment on 
      maximize/restore.
V0.12 complete reading of IWAD and skeleton for PWADs.
V0.13 complete reading of PWAD and map menu functionality.
      There is a bug here somewhere, which causes the application
      to abend with a protection exception.

Version 0.2
-----------
PWADs can be loaded and saved.  There is something strange going
on where the internal PWAD gets spontaneously corrupted if ALTER
is used.  DROP works fine.

Version 0.3
-----------
WAD menu functions fully implemented and crash-tested.  Everything
seems to work fine.  NEW, OPEN, IMPORT, SAVE, SAVE AS, QUIT, DROP,
and ALTER now work correctly.  Large multi-level PWADS can hog quite
a bit of memory and will cause the SWAPPER.DAT to grow.  I don't
see this as a big deal because PWAD operations are lightning-fast,
and OS/2's flat memory model simplifies things a great deal.

V0.31 Draws initial map centered in map control, only works if you
      EDIT an existing IWAD level.  PWAD support next.  Also want
      to have center auto-adjust on MINMAXFRAME.
V0.32 Adjusts centering on MINMAXFRAME, supports PWAD levels, allows
      Zoom In and Out with a #define threshold for different zoom
      amounts.  Draws LineDefs and Vertexes with tagging for LineDef 
      and Vertex edit modes.  Performance with large levels could be 
      an issue, so I've put in the dreaded "go for coffee" pointer.
V0.33 Allows horizontal and vertical scrolling by page, line, or
      slider position.  Slider tracking is also allowed, and works
      quite well.  Performance enhancements were implemented which draw
      only those vertexes which will show up on the screen.  A Thing
      drawing routine was implemented as were thing lookup tables and
      angle indications.  Things are also performance-enhanced to be
      drawn only when they show up in the window.  Grid also works, and
      is performance-enhanced.
V0.34 LineDef performance has been added, and improves ALL redraw operations
      significantly.  Even large levels like E2M7 scroll acceptably at
      typical editing magnifications.  Pick correlation allows things, 
      vertexes and linedefs to be identified by pointing at them.  The
      correlation causes the mouse pointer to flicker, not sure why.

Version 0.4
-----------
Map functions (except sectors) have been implemented.  These include drawing
IWAD and PWAD maps, fully-functional scroll, zoom, grid, and snap.  Map
elements (things, vertexes, linedefs) are identified by pointing to them
with the mouse.  Linedef direction indicators have been implemented.  Mouse
performance becomes impacted when moving over active map elements, due to
object correlation.  I'm not sure how sectors will work yet.

V0.41 Subclassed tool icons respond to mouse actions.  The icons now
      come up with a "no way" pointer when they're not valid.  Thing
      properties are implemented.  Drag from THING icon creates a new
      thing which defaults to the last thing changed.  Things can be moved 
      by dragging.  Things can be cloned by CTRL-dragging.  Edited levels 
      can be saved.  Snap to grid also works.
V0.42 Fixed a bug which caused sectors to get munched.  Added mouse movement
      sector detection, which works far better than I expected.
V0.43 Implemented floor and ceiling texture rendering with colour compensation
      (gamma correction) values defined in the header.  Implemented edit of
      sector properties and display of sector dialog with textures.  Rough
      implementation of user interface components for linedef/vertex mode,
      no actual functionality yet.
V0.44 Implemented Add, move, copy vertex with linedef splitting.  Implemented
      delete linedef with sector merging.  Implemented vertex merging and
      removal of duplicate linedefs.  From testing, I can see that even
      though some of the stuff is handled automatically, it's still going
      to be necessary for the user to "touch-up" some of the linedefs when
      messing around with the merging functions.
V0.45 Implemented linedef addition with sector splitting.  This works 
      very well.  Changed the name, icon, bitmap.  Implemented sector drop.
      Will have to put in warning about how to use this.  Sectors dropped
      "outside" should be dropped close to other sectors with a simple border
      linedef, otherwise performance suffers as DEPM searches to see if it's
      inside a sector.  Also note the method used during construction differs
      from the usual approach in that the idea is not to join sectors, but to
      mold one big sector and then split it into smaller ones.

Version 0.5
-----------
Drag and drop editing has been implemented.  Linedef drawing is in place.
Some polishing needs to be done on the UI behavior, but this can wait until
a functional beta is in test.

V0.51 Linedef pop-up flip/swap has been implemented.  Bugs with flags
      getting mucked up have been fixed.  Set up linedef building flag
      and notifications ... once you enter linedef mode, you MUST rebuild
      the level.  You cannot rebuild the level in linedef mode.  This isn't
      important now because you cannot rebuild the level in DEPM anyway.
V0.52 Linedef editing has been implemented.  Sidedef add/edit/delete has been
      implemented.  Sidedefs have been implemented.  More bugs were fixed.
      Wall texture rendering skeleton code is in place.  Fixed typo in lutable.h
      that prevented light goggles from appearing.
V0.53 Fixed problem with Multi-player Things flag.  Implemented sector
      highlighting when a linedef with a sector tag is pointed at.  Fixed a
      bug where it would tell you to rebuild when you cancel editing from
      linedef mode.
V0.54 Implemented wall texture rendering, which was very nasty.

Version 0.6
-----------
Worked bugs out of texture rendering.  Implemented multiple drops and
imports.  DEPM now autosaves once every minute to a file called AUTOSAVE.WAD
to the working directory defined in the program object.

V0.61 Changed wall texture rendering to take effect when a texture is
      DOUBLE-clicked in the list box, not when it is selected.  This is so
      that when you know what texture you want you don't have to see it.
      Changed Autosave to not display the dialog when save is happening.
V0.62 Implemented node builder as a thread that starts when you leave linedef
      mode.  Duplicates BSP12x results 100% except for BAMS calculations
      which are slightly more accurate under DEPM.  Oddly,  BSP12x does
      something strange:  if you rebuild E1M1, then go look at the
      dead green guy in the first room (after coming off the stairs with the 
      armor), at certain angles the dead green guy vanishes.  The normal doom
      WAD doesn't do this.  Neither does DEPM.  DEPM also corrects the 2-pixel
      problem exhibited by id's builder.
V0.63 Implemented BSP Tuning preferences dialog.  Implemented Colour 
      compensation and render-on-select preferences dialog.  Fixed some bugs.
V0.64 Implemented Map preferences, fixed some bugs, diddled some of DEPM's
      behaviors.  Did some testing.  This cut doesn't look bad at all.
V0.65 Corrected some bugs, added sidedef texture indicators on linedef
      identification.  Corrected more bugs and changed the way the
      correllations are done, to eliminate pointer flickerage.  Removed 
      debugging gizmos and added optimize gizmos instead; performance is
      enhanced significantly.

Version 0.7 (BETA)
-----------
Fixed sector division/merge bug, and miscellaneous other bugs.  Added
RN RU RL LN LU LL texture indicators to linedef identification.  Released
as Beta 0.70.

V0.71 Implemented DOOM2 support; all linedef and sector types in lookup
      table are not there yet.  Implemented Check main procedure and THING
      checking.  Implemented Zoom on Find option and functionality.  
      Implemented mouse positioning to Found object.  Debug gizmos are back
      in and optimization has been disabled until the next beta release.
V0.72 Implemented LINEDEF checking and most sector checking.  Recompiled
      with optimization for BETA testing.  Implemented full DOOM2 support.
V0.73 Implemented sector checking with FIND for incorrect linedef.
V0.74 Implemented PWAD saving in or out of edit mode, unless BSP is running.
      Added more smarts to sector deletion and addition.  Added more smarts
      to drawn LineDefs.  This should avoid the dreaded silly textures on
      2S LineDefs problem.
V0.75 Fixed bugs and added more smarts to sidedef deletion.  Implemented
      multiple profile support.  Added texture validation and notification.
V0.76 Implemented support for extra resources (music, sounds, patches,
      demos, etc.).  Implemented Drop Extras dialog and put in Compression
      preference for later.  Implemented Rename Extras.

Version 0.8 (BETA)
-----------
Implemented compression, Compiled with optimization, tested, and released
as Beta 0.80.

V0.81 Worked on tutorial, added grid back into sectors mode and fixed
      sector snap to work properly.  Fixed empty resource load bug.
      Implemented Quit from Map Window.  Corrected changed/invalid map
      behaviors and implemented Auto-Build preference.  Fixed a whole
      mess of bugs that didn't show up until this was done.
V0.82 Continued work on help.  Implemented table-driven help for F1
      context-sensitive help and wrote help tables.  Completed IPF help 
      files and tables.  Replaced textures list boxes with combo boxes.
V0.83 Fixed numerous bugs and quit behaviors.  Finally nailed that 
      weird "grey splotch" bug.  Continued tutorial.
V0.84 Implemented textures conversion dialog and help.  Completed
      Tutorial.

Version 0.9 (not released)
-----------
Implemented help and tutorial, corrected behaviors and implemented
autobuild preference.  Replaced list boxes with combo boxes and
implemented conversion utility.

V0.91 Implemented Ctrl-Left-Click applicator.  Corrected help.
V0.92 Implemented background texture rendering into bitmaps.  Implemented
      Zoom preset accelerator keys 1 through 0.  Added menu entries for 
      thing finder and palette.  Corrected help.
V0.93 Implemented Backup and Palette preferences.  Implemented Thing
      Finder, and Next Thing.  Implemented sector size preference.
V0.94 Implemented basic texture palette with scrolling.  Implemented
      logic for applicator.  Implemented texture palette functionality.
      Changed applicator behavior for easier use.  Corrected help.
V0.95 Implemented map scrolling keys and corrected help.  Implemented
      Palette positioning memory and CHORD palette invokation.
V0.96 Implemented correct initial frame window sizing.  Messed around
      in different resolutions.
V0.97 Implemented thing details, linedef details, and sector details.
      Corrected help.  Changed dialogs to follow details and palette
      order.

Version 1.0 (Release)
-----------
Updated version number, removed debugs, compiled optimized, and 
released as DEPMV100.

V1.01 Added some performance enhancements, popups for object deletion,
      converted line flipping swapping thing to a popup.  Messed around
      with DEPM under Warp.  Added light level indicator for sectors.
V1.02 Implemented texture palette saving and loading.  Altered lookup
      table processing and added basic Heretic thing support.
V1.03 Implemented Render into Bitmaps preference and functionality.
V1.04 Implemented Preload Textures preference and functionality.
V1.05 Implemented applicator for sectors mode.

Version 1.06 (Release)
------------
Implemented Colour Preferences dialog.

Future Versions
---------------
V107 Heretic Lookup Tables

