blood/MAPEDIT.TXT

=============================================================================
			    MAPEDIT History File
		 Copyright (c) 1994-95 Q Studios Corporation
			    Contact: Peter Freese
		    pfreese@qstudios.com or CIS:74170,543
=============================================================================

================
2D EDITING MODE:
================

HIGHLIGHTING:

	The mouse cursor will highlight the nearest object within a specific
	threshold (see MAPEDIT.INI).  The selected object will flash, and any
	XObject information will be displayed in the lower panel.  Key
	operations in 2D will apply to the selected object.


SPRITES:
--------
	Sprites have various shapes in the overhead map, depending on
	their attributes:

	* Face sprites are cyan circles with a line extending from
	the center to indicate their angle. (ref. '<' and '>')

	* Thick sprites have the blocking attribute set. (ref. 'B')

	* Purple sprites have the hitscan attribute set. (ref. Ctrl-H)

	* Sprites with three or four lines extending from the circle
	are wall sprites. The shorter lines indicate which sides are
	visible. (ref. 'R' and '1' in 3D mode keys.)

	* Sprites with square centers are floor sprites, and can be
	manipulated with all the keys referred to above.

WALLS:
------
	This section not complete.

MOUSE FUNCTIONS:
----------------
	Mouse		Move mouse cursor

	LeftButton	Click and hold on an endpoint to drag.
			See RightShift and RightAlt for other options.
			To delete an endpoint, drag that point into the
			next point and it will be deleted. (NOTE: Grid-locking
			must be enabled. See 'L' key below.)

	RightButton	Click to change the 3D view cursor position.

	RightShift	Press and hold to highlight endpoints and sprites in
			a rectangular region. Release the key once the chosen
			region is highlighted. Drag objects in the highlighted
			area by clicking and holding the left mouse button
			down and then dragging the mouse. Release the left
			mouse button to drop the objects at the target
			position. Press RightShift without dragging the mouse
			to deselect the highlighted objects.

	RightAlt	Highlight sectors for duplication or dragging. Similar
			in operation to the RightShift key, this key
			highlights entire sectors and the sprites within them.
			See the Insert key for information on duplication.

KEYBOARD FUNCTIONS:
-------------------
	Arrows		Moves the 3D view cursor position. The cursor will be
			clipped against blocking wall and sprite boundaries.
			Press the right mouse button to move the 3D view
			cursor to a different position on the map.

	ESC		Brings up the menu. Press ESC again to cancel.

	PadEnter	Toggle between 2D and 3D editing modes

	SpaceBar	Press the space bar when drawing new sectors. There
			are several ways of drawing new sectors.  The
			following three ways of drawing sectors can all be
			done by only using the space bar.  The application is
			"smart" enough to decide which method you are using.

			1.  Drawing a FULL LOOP - that is, whenever the new
				sector meets the old sector, draw over that line
				again.  In full loop mode the new sector must not
				already be in another sector.  The loop is done
				when you press the space bar at the first point
				again.
			2.  SPLITTING a sector - press space bar to draw points
				at which you want to split a sector.  The computer
				knows you are done splitting when you end at
				another point that's on the edge of the sector you
				are splitting.
			3.  Drawing a sector COMPLETELY INSIDE another sector.
				(for example, columns) To do this, just press space
				bar at every point in the loop.  The loop is done
				when you press the space bar at the first point
				again.

	Backspace
		Deletes previously plotted point during sector creation. Press
		repeatedly to get rid of all previously plotted points.

	Insert	Inserts a new endpoint at the midpoint of the highlighted
		line.  Then you can drag the point to wherever you like.  (If
		you insert on a red line, the point will be inserted on both
		sides of the sector line.) If a bunch of sectors are selected
		(see right ALT) then instead of inserted points, the selected
		sector bunch will be duplicated (stamped).  Don't forget to
		drag the selected sectors after stamping.

	Delete	Use this to delete sprites. Do NOT delete marker sprites
		created by the XSYSTEM. Instead, change the sector type.
		NOTE: To delete endpoints from a line, DON'T PRESS DELETE.
		Instead, drag the endpoint onto a neighboring endpoints, while
		the grid is on.  If the endpoint is dragged exactly on top of
		the neighboring endpoint, it will automatically be deleted.

	Right Ctrl-Delete
		This deletes the whole sector that the mouse cursor is in. Use
		this option with caution as it has been know to cause problems
		in maps.

	ScrollLock
		Set editing starting position (reddish arrow) to your current
		position (white arrow). Also used to define the default player
		starting positions, but level designers are expected to place
		player starting marker sprites in all maps.
		NOTE: Eight co-op and eight deathmatch markers must be placed
		on all maps. (ref.  Alt-S, 3D MODE EDITING)

	TAB	View attributes of the sector under the cursor.

	AltTAB	View attributes of the wall or sprite closest to the cursor.

	A/Z	Zoom the 2D view in and out. Text tags may disappear when the
		view is zoomed out. Zoom in to view them again. (ref. Ctrl-T)

	B	Toggles blocking attribute of walls and sprites. A blocked
		wall or sprite will with a thick line in 2D EDIT MODE.  See
		the description for 'B' in the 3D EDIT MODE section for more
		details.

	C	Turn a line into a circle defined by short line segments.
		Press 'C' on a highlighted wall, and move the mouse cursor to
		change the arc of the circle. Press '+' or '-' to change the
		number of line segments in the circle. Press 'C' again to
		cancel circle creation, or SpaceBar to accept the changes.
		(NOTE: Grid size affects the position of the arc. Refer to 'G'
		and 'L' below.)

	E	Change a sprite's status list number. Level designers should
		not have to change a sprite's status directly, unless a bug is
		reported when running the game.

	G	Change grid resolution. The grid resolution cycles through the
		following sequence:
		* Off : no grid
		*  1x : 64x64 pixel grid
		*  2x : 32x32 pixel grid
		*  4x : 16x16 pixel grid (* DEFAULT *)
		*  8x : 8x8 pixel grid
		* 16x : 4x4 pixel grid (Has wall texturing problems.)
		* 32x : 2x2 pixel grid (Has wall texturing problems.)

		Use the two finest grid resolutions only for positioning
		sprites.  Wall vertices should not be closer to each other
		than the grid lines at 8x resolution.

	H	Edit the high tag for the sector under the cursor.

	Alt-H	Edit the high tag for the wall or sprite under the cursor.
		(See also: T and Alt-T. Level designers should not edit these
		fields directly, as they are used internally by XSYSTEM.)

	Ctrl-H	Toggle the hitscan sensitivity of a sprite or masked wall.
		Objects which are hitscan sensitive can be hit be vector
		weapons.

	L	Turns grid locking on or off. If the mouse cursor is pink then
		grid locking is on. If it is white then grid locking is off.
		There is no grid locking if the grid is turned off.  Also,
		grid locking will lock to nearby points.

	J	Join two neighboring sectors.  Press J when mouse cursor is
		over the first sector.  Then press J again when the mouse
		cursor is over the neighboring sector.  The attributes of the
		combined sector will be taken from the first sector selected.

	K	Mark a wall or sprite for motion
		(blue = forward motion, green = reverse motion)

	M	Make a wall masked

	S	Places a sprite at the location under the mouse cursor. Refer
		to the SPRITES section (above) for more information.

	Alt-S	Convert internal white sector (single-sided linedef) to a red
		sector (double-sided linedef). Ctrl-Delete can be used to
		reverse this. (NOTE: Outer loop cannot be converted!)

	T	Edit the low tag for the sector under the cursor.
	Alt-T	Edit the low tag for the wall or sprite under the cursor.
		(See also: H and Alt-H. Level designers should not edit these
		fields directly, as they are used internally by XSYSTEM.)

	Ctrl-T	Toggle the text captions for sectors, walls and sprites.

	< | >	Rotate a Sprite: Rotation has a precision of 2048 degrees, and
		sprites can have an angle value range of 0 to 2047. Pressing
		the shift key allows a finer degree of rotation.
		Rotate a Sector: Sectors highlighted with RightAlt can also be
		rotated using these keys.

	[ | ]	Rotate a sprite without wrapping. Generally used for marker
		sprite rotation, allowing marked sprites to rotate several
		times throughout a busy cycle. If you don't understand this,
		talk to Peter.

	F5	Display sector specific data
	F6	Display sprite/wall specific data
	Alt-F5	Edit sector specific data in the editing dialog.
	Alt-F6	Edit sprite/wall specific data in the editing dialog.

	While in the editing dialog, the following keys are active:
		Esc	Exit dialog and abandon changes
		Enter	Exit dialog and save changes
		Left	Previous control
		Sh Tab	Previous control
		Right	Next control
		Tab	Next control
		Up	Increase value by 1 or move radio button up
		Pad +	Increase value by 1
		Down	Decrease value by 1 or move radio button down
		Pad -	Decrease value by 1
		Pg Up	Increase value to next multiple of 10
		Pg Dn	Decrease value to next multiple of 10
		Space	Toggle check boxes
		F10	Get next unused channel (rxID and txID only)


================
3D EDITING MODE:
================

	CapsLock	change zmode
	Tab		Copy to buffer
	Enter		Paste buffer
	Sh Enter	Paste shade and palette
	Ctrl Enter	Paste tile to all walls in loop
	Sh Ctrl Enter	Paste tile, shade, and palette to all walls in loop
	Alt Enter	Copy attribute (extra) information
	<		Rotate sprite CW
	Sh <		Fine rotate sprite CW
	>		Rotate sprite CCW or auto fix wall panning
	Sh >		Fine rotate sprite CCW
	/		Set x and y repeat to default values
	Sh /		Set sprite x repeat to match y repeat

	1		Toggle 1 sides sprites and 1 way walls
	2		Toggle bottom wall swapping

	Pad +/-		Brighten / darken texture
	Ctrl Pad +/-	Set texture to max/min brightness
	Pad 0		Set texture to 0 brightness
	Pad arrow	Adjust tile repeats
	Ctrl Pad arrow	Adjust tile panning

	PageUp		Raise z by 4 pixels
	Sh PageUp	Raise z by 1 pixel
	Alt PageUp	Enter new floor or ceiling height
	Alt PageDn	Enter new floor or ceiling height
	Ctrl PageUp	Put sprite on ceiling /
			Move floor or ceiling to next higher neighbor Z
	PageDn		Lower z by 4 pixels Sh PageDn	Lower z by 1 pixel
	Ctrl PageDn	Put sprite on floor /
			Move floor or ceiling to next lower neighbor Z
	Delete		Delete 	sprite

	B		Toggle blocking
	Alt C		Change all tiles matching buffer to target
	D -/+		Adjust depth cueing level
	E		Toggle expansion of floor/ceiling texture
	F		Flip texture
	Alt F		Turn on relative alignment in the highlighted sector.
			If already on, change the first wall in the sector.
			Relative alignment affects textures or slopes.
	G -/+		Adjust gamma level
	Alt G		Change Global palette
	H		Hitscan sensitivity for masked walls AND sprites.
	L		Light bomb
	M		Toggle maskable wall
	Sh M		Toggle single side maskable wall
	O		Toggle orientation or post sprite on wall
	P		Toggle parallaxing for floor or ceiling
	Ctrl P		Change sky parallaxing type
	Alt P		Change palookup
	R		Toggle floor/ceiling relative alignment or change sprite
			rotation type
	S		Insert sprite
	T		Toggle translucency
	V		Select tile
	Alt V		Select heightmap
	W		Change lighting effect waveform

	F2		Toggle state
	F3		Show sector OFF z position
	Alt F3		Capture sector OFF z position
	F4		Show sector ON z position
	Alt F4		Capture sector ON z position
	F9		Auto stair builder.  Highlight a group of sectors,
			then point to an adjoining sector floor or ceiling
			and press F9.  The floor or ceiling you point to will
			be the lowest step.
	F11		Enable/disable panning
	F12		Toggle beeps

	Ctrl Alt - | +	Decrease/Increase sector visibility
	Ctrl - | +	Decrease/Increase light effect amplitude
	Shift - | +	Decrease/Increase light effect phase
	[ | ]		Change floor or ceiling slope
	\		Remove floor slope


-----------------------------------------------------------------------------

94/12/18

This document created.  I have renamed BUILD.EXE to MAPEDIT.EXE.  I hope
this will prevent confusion between Ken's version and our version for Blood.
Also, this allows changes specific to MAPEDIT to be documented independently.
For maximum viewing pleasure, this document is formatted at 78 characters
wide, tab stops of 8, and contains no upper ASCII characters.

MAPEDIT supports loading custom palette remap and translucency tables.  It
looks for NORMAL.PLU and TRANS.TLU in the currect directory.  If they are
present, it will use them; if not, it will use the defaults in PALETTE.DAT.

I am phasing out the CNT files and replacing them with MPX (MaP eXtension)
files.  This files store all the Blood specific information for sprites,
walls, and sectors.  The CNT files were a hack to test out adding custom edit
controls to BUILD.  I don't think anyone was using them for anything, but
just in case you were, MAPEDIT will automatically convert the CNT files and
remove them when you save changes.

For a discussion of the various fields and their meanings, see the
TRIGGERS.TXT document.

At present, only the sprite editing fields are active.  Wall and sector
editing will be completed shortly.

-----------------------------------------------------------------------------

94/12/28

Completely replaced Ken's keyboard handler with my own.  This will allow key
repeat to work for all functions, so now you can just hold down the pad plus
key to lighten a sprite, etc.  This also gives me the ability to add new
functionality at will, without waiting for Ken to add a new function.  To
this end, I've added stub code for Alt-P while in 3D mode.  Currently, this
just gives you the tile selection screen, but it will be used for editing
tiled parallaxing skies.

An assertion failure that would occur when an invalid reference was noted
between a map and an mpx file has been changed.  The invalid reference will
now be simply deleted.  This allows you to delete the mpx file if you want to
trash all the additional map data.

-----------------------------------------------------------------------------

94/12/30

Due to some problems discovered in trying to handle keystrokes from within a
secondary ISR (Ken's code doesn't handle it well, and I can't work around it
because his functions are not reentrant), I've adopted a new strategy for
adding to key functions.  I'm still using my own keyboard handler, so you'll
still get the benefit of key repeat.

I'm now 'subclassing' Ken's editinput() function by renaming his function to
kensinput() by directly modifying the object file.  This is a true hack, but
it should work cleanly.  However, I'll need to make the same change to future
versions of build.obj unless I can convince Ken to make a similar change.

Just to prove that it works, I've added a few extra key functions for 3D
mode:

Alt-L while the cursor is on a sprite will set the sprite's shade to -42 (the
maximum brightness without side effects).

Alt-0 while the cursor is on a sprite will set the sprite's shade to 0.  This
should cause the sprite to have the same shade as the sector it is in (good
for floor and ceiling sprites).

I was going to add a function to build stairs automatically, but some of
Ken's variables for handling highlighted sectors are static and I can't
access them.  I'll try to get him to change this and add this in a later
version.

-----------------------------------------------------------------------------

95/01/02

Make sure you run CONVMAP6 on ALL your maps. The easiest (DOS) method
to accomplish this is to type:

for %1 in (*.map) do convmap6 %1

Peter implemented a raw auto stair builder. Create your stair sectors in
2D mode, without (unnecessarily) changing the heights in 3D mode. In 2D mode,
use the R.Alt key to select all the stairs you want to auto-height adjust.
In 3D mode, point to a sector outside the selected stairs that you want use
as the base height for the stairs and press F9. Enter the stair height in
pixels. Use 8 or 12 pixels or risk death by immolation; other stair heights
will be too tall to walk over. Expect more cool additions in the future!

Peter made changes to the width of the character, as well as height at
which things can be walked over. If you notice any peculiarities let him
know.

Peter has also added sector lighting effects to BUILD, but they have not
been documented. Also, they don't work in Blood yet, but will very soon.
The next update you get will be probably executables only.

Note from Nick: Try to make your bonus, one-up and weapon sprites
non-blocking. Thanks!

-----------------------------------------------------------------------------

95/02/06

Key handling has changed (again), and is now much cleaner, thanks to the
changes Ken made to his code during his visit with us.  I'll no longer have
to keep hacking build.obj.

Along with Ken's changes, a bug crept in which would cause F5-F8 to crash if
you pressed them in 3D mode.  This has been fixed.

Sector lighting effects are now functional and work in Blood as well.  You
can edit them in 2D mode or 3D mode.  See the new keys documented above.  I
may be making another change in the implementation of sector lighting to
allows walls to be modified, but this shouldn't affect sectors which you have
already worked on, so bang away on this feature.

The MPX format has been enhanced again.  It now contains version information,
so should be easier to update periodically.  Older format files are
automatically converted when loaded.  With this new version, you'll be able
to add author name and level name to the mpx files (editing not yet
implemented, though.)  Global visibility is now saved in the mpx file and
properly loaded in Blood.

You can now tile parallax skies.  See the new keys documented above.

-----------------------------------------------------------------------------

95/02/08

Updated sector shading effects code.  Instead of storing the base floor and
ceiling shade, the MPX structure now has a single field which is the
current relative shade.  By adding and subtracting this offset, it is
possible to do relative shading effects to floors, ceilings, and walls
without extra storage.  The only overhead is some additional processing time,
since I now call DoSectorLighting() and UndoSectorLighting() once per frame.

The sectorExt dialog now has checkboxs for shading floors, ceilings, and
walls, so it is possible to apply lighting effects to any or all of these.
Also, for lighting effects to take place, the sector status must be ON.  I'm
going to get the message system working Real Soon Now, and the first thing
I'll test is turning on and off lighting effects.

A major bug was fixed in the code that ensured referential integrity between
the sprite, sector, wall and respective Ext structures.  I believe that this
was THE bug that was causing the occasional weird sector lighting values.
Please let me know ASAP any other problems of this nature.

When loading maps, all item and creature sprites are automatically
sized to their proper x and y repeats.  This is intentional, and will ensure
uniformity between levels.  There is no such thing as a miniature zombie!

Sprite Ext structures are automatically added for creatures when maps are
loaded.  This adds the proper type and view flags based on picnum.

-----------------------------------------------------------------------------

95/02/14

Did a major restructuring of source code.  This was a sorely needed cleanup
to produce organization out of a loose collection of hacks.  This should make
future changes and additions much easier.

Fixed a problem with the IncBy and DecBy inlines functions which caused
weird step values when you used the PageUp and PageDn keys in dialogs.

-----------------------------------------------------------------------------

95/02/18

Parallax sky tiling should be working again.  I had an incorrect assumption
about the way pskybits works.  I thought it represented the width of the sky
tiles, but it actually indicates the number of tiles.  Go figure.

I've assigned the ext editing functions to the Alt combinations of F5 and F6
instead of F7 and F8.  I'm limited to F5-F8 in 2d mode for adding features,
so I'm going to overload these keys for all their worth.  Prepare for the
worst.

Rewrote initialization code so that it uses the same module as Blood.  You'll
now see the same initialization diagnostic messages in both.  This means that
MAPEDIT also uses the same gamma correct and sin tables as Blood, and loads
information from the BLOOD.INI file.

MAPEDIT loads the gamma correction from and writes changes to the BLOOD.INI
file.  Do not use F11 to change the gamma level.  Instead use the G +/-
combination, the same as in Blood.  The gamma level is displayed momentarily
when changed.

Changed key combination to change the depth cueing (visibility) to D +/- for
compatibility with BLOOD.

-----------------------------------------------------------------------------

95/02/18

Fixed a bug in the key handler which caused the (G)oto command to stop
working in the tile selection screen.  The solution was to change the key
combination for this to Alt-G.  Essentially, anything you used G for
previously, use Alt-G for now (except setting gamma correction).

-----------------------------------------------------------------------------

95/02/27

This version includes a substantial rewrite of ALL 3D editing keys.  Please
report anything that's not working as it should.

PageUp and PageDn in 3D mode now support fine movement (1 pixel) and coarse
movement (4 pixels).  Use shift for fine movement.  It did this before, but
not correctly all the time due to the way I was intercepting the keys.
Sprite fine z adjustment now works for highlighted sprites.  Coarse z
adjustment now moves to the next multiple of 4 pixels, rather than in steps
of 4.  You can no longer move a floor above a ceiling or vice versa.

Fixed coarse sprite rotation so it moves to the next multiple of 256.
Fine rotation now moves to the next multiple of 16 instead of 1.

Changed screen capture key to PrintScreen.  Now I can use F12 for something
more useful.

You can no longer wrap shades by going too dark or too light.  Shades are now
correctly clipped at their max values.

Changed keys for setting shade to 0, min, or max.  The key combinations for
setting texture brightness are now Ctrl Pad + for max brightness, Ctrl Pad -
for min brightness, and Pad 0 for 0 brightness.  I would have done this
originally, but I couldn't without rewriting a fair amount of the 3d editor
code (which I now have done).  These key combinations now present a
consistent metaphor:  Pad +/- is exclusively used for brightness; and Control
in combination with a step key sets a min or max.

Fixed a bug in which any sprite inserted that had a tile height of 32
pixels or more would automatically be set to blocking.  It will now
automatically set sprites to blocking only if there is something other than a
sprite in the tab buffer.

Added some clicks and beeps for feedback.  Let me know if they are too
annoying.

Ctrl Enter on a parallax floor or ceiling will now paste to ALL parallaxed
floors or ceilings, not just neighboring sectors.

The key to auto adjust panning will no longer change orientation of any
walls.  This means that some walls will not automatically be aligned, but you
would have had to fix these walls anyway.

This version of MapEdit includes a new 2D animation editor.  You start this
editor by using F7.  See the new animator editor keys documented at the top
of this file.  Call me if you need help.  Level designers do not need to use
this tool.  The animation editor will probably not work in unchained mode or
screen buffer mode.  Try it in these modes at your own risk.  You have been
warned, Nick!

-----------------------------------------------------------------------------

95/03/05

Fixed a bug which would cause extended keys (e.g. Page Up and Delete) to be
dropped if NumLock was on.  This bug was introduced when I added code to
prevent filling up the keyboard buffer.  These keys are actually transmitted
as multiple make codes when Num Lock is on, hence the bug.

Fixed a bug in the debug version of the heap.  Sheesh!  It would dassert out
occasionally when it was unable to allocate a block when it thought it had
enough memory.  I wasn't subtracting out the space used for the fenceposts.

MapEdit now uses our heap and resource caching system, so it should lurch
less.

I replaced the gettile() function, so now tile histories for walls, ceilings,
floors, masked walls, face sprites, and flat sprite can all be maintained
independently.  Tile selection should now be significantly faster.

-----------------------------------------------------------------------------

95/03/06

Added an assertion to check for overflow of the ext arrays.  I found out that
some maps had sectorExt structures for nearly every sector, and were
overflowing the array!

-----------------------------------------------------------------------------

95/03/24

BUG FIXES

Fixed problem with allocatepermanenttile not marking the block of memory as
locked.  It could get added to the purge list during precaching....

Added some missing modify [...] registers to an inline function in the
dynamic fire system.  This would inevitably cause problems when
optimizations were enabled.

Fixed the hang on exit problem.  Ken's unintengine function was closing
STDIN.  Replaced his function to fix.

-----------------------------------------------------------------------------

95/03/26

Fixed a bug with adjust x and y repeats of wall textures (you couldn't).  You
can now also match x and y repeats by pressing shift / on a wall.

Added preliminary light bomb.

-----------------------------------------------------------------------------

95/04/02

When switching between 2D and 3D mode, I now do a reference check for all ext
structures.  This will ensure that any editing done in 2D mode is
reflected immediately in 3D mode.

Ctrl-Enter will no longer copy shade or palette values.  If you want to copy
shade and palette values to every wall in a loop, use Shift-Ctrl Enter.  Note
that the previous function of Shift-Ctrl Enter has been removed.

-----------------------------------------------------------------------------

95/04/07

MAJOR FORMAT CHANGE.  This version requires you to run CONVDB3 on all your
maps.  This new format eliminates the need for separate MAP and MPX files,
and adds many new fields, support for which will be added *soon*.

You can now adjust the floor or ceiling z of a red sector from outside the
sector.  Just point to one of the walls and press page up or down.  This new
feature makes it easy to open closed vertical doors.

Increased angle resolution of light bomb.  Expect it to be about twice as
slow.

-----------------------------------------------------------------------------

95/04/07

BUG FIX.  There was a problem which resulted in an incorrect file CRC if you
deleted sprites and then saved.  I wasn't checking the statnum of sprites
which had an attached xsprite.

BUG FIX.  If you started MAPEDIT and created a new map, all sectors would have
an extra field of 0 instead of -1.  This caused an assertion failure when you
tried to enter 3d mode.  This is a kenbug which I worked around by
initializing all extra fields to -1.  There is still a problem if you create a
new map after editing another map.  When you add sectors, they will get extra
references to old xsectors, xwalls, and xsprites, respectively.

BEHAVIOR CHANGE.  The program now automatically adds xsprites for all sprites
and sizes them correctly before saving.

-----------------------------------------------------------------------------

95/04/07

BUG FIX.  All extra fields of 0 are now set to -1 on loading.  I'll fix this
nasty bug yet!

BUG FIX.  Hooked my unitialization routine into exit so that keyboard
interrupt and timer rate gets restored, even on crashes.  This should cure
the occasional and bothersome runaway clock.

-----------------------------------------------------------------------------

95/04/18

Separated code for tile selection into it's own module.

Made the sequence editor use the new tile picking code.

-----------------------------------------------------------------------------

95/04/31 - NCN

BUG FIX.  Fixed a bug that screwed up masked walls. MAPPERS: You may not have
seen this bug since it occurred in an interim version.

The H key now toggles the hitscan value in 3D mode for sprites as well as
masked walls. Use Ctrl-H in 2D mode.

The Alt F key combo was added in 3D mode to change the relative alignment of a
sector. Press it once to make a sector relative aligned. The key may be
pressed again (and again) to change the first wall in a sector. To check which
is the first wall, press TAB in a sector and note the first wall number, then
press Alt-TAB on each wall to figure out which one it is.
IMPORTANT NOTE: Only use Alt-F in sectors NOT containing other sectors!

Added crude menus to sector dialog. To edit an extended dialog box,
highlight one of the menu selections and press Enter. When you are done
editing in the extended dialog box, press Enter to save the dialog changes
and return you to 2D editing mode. If you wish to go back to the menu,
press Escape. Any changes you have made will be held until you either press
Enter again, or press Escape to abort any changes you have made.

Added a txID verification key to the sector and sprite trigger dialog boxes.
When the txID field is highlighted, enter a number and press the '?' key. This
will tell you whether the txID you entered is used and by what. I intend to
expand on this for the rxID field and add the same features to the wall
dialog.

Added wind currents to sectors. There are now 8 hard-coded wind levels, which
are selectable by changing the wind field in the sector dialog. If the field
is 0, then no wind is generated in that sector.

Added water current data to sectors, which can be edited in the sector dialog.
First select a water depth from 0 to 3: 0=no current, 1=tread, 2=wade, 3=swim.
Next select the speed and angle. If a sector has relative alignment set, the
initial current angle will be determined by the angle of first wall in the
sector, and the 'angle' field will is added to the wall angle.

Added key support for certain sector effects. Change the key field in a sector
to indicate that the sector requires a key to operate.

MAPPERS: We will be moving from the tag system to the new extended system, a
few effects at a time. Please watch for changes in my maps and this text file
to show you which effects have changed. Some things, like one-shot triggers,
don't work yet, but set the fields anyway for compatibility and so you
won't have to go back and edit them later. For now, you should be able to go
back through all your maps and make switches and keys function, and that
should eat up a few days. Good luck!

Check out the following sector types: Lift, Swingdoor, Topdoor,
Bottomdoor, and Floor Pad. Use my example TRIGGERS.MAP to figure some of it
out, or call me if you need to. Eventually we'll have docs explaining how this
stuff works.

-----------------------------------------------------------------------------

95/05/02 - NCN

Fixed trigger bug with floor pads. Check out the expanded physical trigger
flags for sprites and sectors. MAPPERS: Make sure the following things are
applied to your maps: 1) All switches should be non-blocking with the
Push and/or Impact triggers set. 2) Door sectors currently need the Push
flag set. This will change as soon as wall triggers are done. 3) Lifts will
need the Push flag set to function while the player is in the sector, unless
a switch is installed at the top and bottom of the lift, either inside or
outside the shaft, up to you. The switch sprite will not move with the lift.

You can use the physical triggers with ANY sector type, including NORMAL.
Physical triggers for sectors of type NORMAL will not change state when
the trigger is activated. The "only once" trigger now works with the NORMAL
type of sector. Expect the same additions to all sector types soon.

BUGS/PROBLEMS:
* Lifts no longer work when the action key is pressed while inside,
though they will activate if you are next to them. This will be fixed
in the next version.

* Wall flags are still not implemented. Expect them also in the next
version. These will be used to signal door sectors to open.

NOTES:

* Shrink all switches to 40x40. I'll try and add this in next MAPEDIT.
* Shrink all gargoyle statues to 40x40. Same deal.
* Shrink all chairs to 40x40. Okay, this one too.

-----------------------------------------------------------------------------

95/05/07

When relative sector alignment is set with Alt-F, flipping and xy swapping is
cleared.  This should fix water current problems.

-----------------------------------------------------------------------------

95/05/08

Added new fields to sector effects dialog.  Redid all dialogs in character
coordinates and tightened up display.  Non-tab control now are highlighted.

Add F2 to toggle state in 3D mode.

-----------------------------------------------------------------------------

95/05/10

Added display of wave form when 'W' pressed in 3D mode.

Modified xsector and xsprite dialogs to access new waitTime and busyTime
fields.  These fields control the speed of door movement (time in .1 secs),
and the delay before reset (time in .1 secs).  If your doors or momentary
switches don't seem to be working, check the values in these fields.

Added xwall dialog.

-----------------------------------------------------------------------------

95/05/12

Provided a workaround for a memory allocation bug which would cause the
editor and blood to hang in any mode which required screen buffering.  This
workaround will NOT work in stereo display modes -- I need an engine update
from Ken to fix this.

-----------------------------------------------------------------------------

95/05/19

Added trouble-shooting section at top.


-----------------------------------------------------------------------------

95/05/24

Added lots of great new stuff that will be documented shortly. Take a look at
the sample maps to see how most of the effects are accomplished. You will
notice that MAPEDIT has changed significantly.

BLUE "SPRITES" are controls for SLIDE type sectors, and come in pairs.  GREEN
"SPRITES" are controls for ROTATE type sectors.

Use the controls to make rotating and sliding doors or other gimmicks. If you
delete a control accidently it will be reinserted, though the angles and
position are not retained. Sorry. Don't delete controls by accident. :)

Here is a mini-tutorial on how things work, please run the maps then look at
them before you post a bunch of questions. Everything should be the same for
raising and lowering sector doors.

For a swinging door:
* Create a red-line sector for a door and raise it to the height you want it.
* NOTE: Doors should be created in the OPEN position.
* Use AltF5 to select a sector type of "Rotate" in the sector dialog.
* WARNING: Do NOT select the "Swing door" type. It won't work.
* Set the triggers, keys, and busyTime/waitTime EFFECTS in the same dialog.
* NOTE: A green control is automatically inserted (visible in 2D mode only!)
* Place the control on the pivot point of the sector.
* Change the angle of the green control to point right. O---->
* Now, adjust the angle of the green control to be the angle it needs rotate
  to OPEN from the CLOSED position. This is a bit confusing but you'll get
  the hang of it. Look at the swinging doors in MAP01-MAP04.

For a sliding door:
* Okay, I'll send this to you guys in e-mail. There is a simple example in
  MAP01.MAP. Look for the BLUE ARROW. Yes! The blue arrow points in the
  direction of movement. (Let the other teams try and beat that!)

More on sliding doors later, as well as morphing walls. For now just
experiment with triggers and slide/rotate walls. Good luck.

-----------------------------------------------------------------------------

95/05/28

Changed code that automatically inserts marker sprites so they start out at
angle 0. O---->  This only effect markers in rotate sectors.

-----------------------------------------------------------------------------

95/05/29

Added combination switches.  These are multi-way switches which change to the
ON state when their data field equals the value set in lotag.  The sprite's
hitag contain the number of values that the switch will cycle through.  These
switches can be used for combination locks, or even counters.  See my map
FXTEST for examples of both.

Changed the way that slide sectors work so you only need to tag the walls
that you want to move, and the code figures out which vertices need to be
updated.  No more stretching wall bullshit.

Added support for sprite link messages so a master combination switch can
control slave switches.

-----------------------------------------------------------------------------

95/05/30

Created MAPEDIT.INI for storing various edition options.

Fixed an overflow problem which could cause long lines to be unselectable.
Overhauled line selection so it is zoom dependent, and controlled by a
configurable distance threshold, HighlightThreshold in [Options] of
MAPEDIT.INI.

Fixed a lot a subtle problems in the light bomb, which would cause certain
reflections to be calculated incorrectly.  I also (hopefully) eliminated
problems with overflow in the ray tracing algorithm.  Sometimes fixed point
math sucks.  You can control various aspects of the light bomb through
configuration options in MAPEDIT.INI.

Changed Ctrl-Shift-Enter so it only pastes shade and palette to all walls in
a loop.  Previously, it would copy over textures as well.  This is the way
that I really intended it to work.

-----------------------------------------------------------------------------

95/05/31

YES!  I think I found a solution for maintaining marker sprites that will
ensure references don't get hosed.  In level designer terms, this means you
won't occasionally lose slide or rotate markers.

-----------------------------------------------------------------------------

95/06/01

This time I _really_ think I've fixed the marker sprite problem.  There
shouldn't be any changes required to your maps, and the marker sprites should
stay put.  Let me know any problems ASAP.

-----------------------------------------------------------------------------

95/06/02

Moved troubleshooting section to the new XSYSTEM.TXT file, which will
document the trigger system, sector, wall, and sprite effects, and other
crucial information for level designers.  This file will continue to document
editor changes, but won't discuss specific aspects of effects.

-----------------------------------------------------------------------------

95/06/04

Fixed a mouse selection problem which would cause the wrong texture to be
copied instead if the mouse was at an extreme edge of the screen.  The bug is
in Ken's code, so the only thing I can do is limit the mouse in by a pixel
from all the edges.

You can now use PageUp and PageDn on the lower wall of a bi-textured wall to
move a red sector up and down.

Player height is now identical in MapEdit and Blood.  Just remember to put
your switches lower in areas where the player will be in the water.

Added sector visibility keys: Press CtrlAlt+ and CtrlAlt- to change the
sector visibility values. Don't abuse this feature or Nick will kill you.

-----------------------------------------------------------------------------

95/06/04

========================================================================
			!! READ THIS FIRST !! (please)
========================================================================
Save ALL of your maps before running the new conversion utility.

Once you've saved your maps in another directory or ZIP file, run the
CONVDB4.EXE conversion utility. You can use wildcards, so typing "CONVDB4
*.MAP" is acceptable.

Next, run "MAKEPLU 64 96" before viewing, editing or playing any maps.
========================================================================

* From now on all Door, Lift and moving stair types should be created using
the "Z Motion" sector type. (These are automatically converted when CONVDB4
is run on version 3.x maps.) The Z values cannot yet be viewed in the 2D
dialogs, but are displayed when created or changed in 3D mode.  NOTE: Lift
types will be converted, but you must manually go in and set on and off Z for
each of them. Sorry. It was this, or linking the entire engine into the
converter, or wasting time rewriting code.

To create and set the default on and off Z values for a "Z Motion" sector:

First, make the sector a "Z Motion" sector using the Alt-F5 dialog.

Position the sector ceiling and floor heights where you want them to be when
the sector is in the OFF position. For doors, it is easiest to make OFF the
CLOSED position. Point at the Z Motion sector (ceiling, floor, adjacent
non-white wall, or interior white wall) and press Alt F3 to set the OFF Z
values. Pressing Alt F3 will set the Z values for both the ceiling and floor,
so you don't have to press it twice.

Now position the ceiling and floor heights where you want them to be when the
sector is in the ON position. (Best in the OPEN position.) Point at the "Z
Motion" sector and press Alt F4 to set the ON Z values.  Again, this only has
to be done once, as it will autmoatically set the ceiling and floor ON Z
values with one keypress.

To view the positions, point at the sector with the mouse cursor, hold the
left mouse button down and press F3 and/or F4 to view the OFF and ON Z
values, respectively.

* New graphics for the pod creature and rat have been added, but they don't
have MAPEDIT values in place. That means their captions won't yet show up in
2D mode, nor will they be sized correctly.

* Dialogs have changed a bit, and will change more in the future.  At least
this time they all look more alike. Live with it.

-----------------------------------------------------------------------------

95/06/13

Changed 3D movement so you are no longer blocked by the ceiling in sectors
with parallaxed skies.  Moving way 'up there' can give you an interesting
perspective on (and hopefully new ideas for) your map.

Rewrote the GUI.  You probably won't see any significant visible changes, but
please report any problems.

-----------------------------------------------------------------------------

95/06/30

Added menu to insert game objects. From now onw, press Alt-S instead of S to
insert game object sprites. You can still use S for ornaments like torches,
weeds, etc. NOTE: Hazard insertion is not done yet.

If you have not already done do, run CONVDB4 on all your maps. You should
then load and save *every* map to reset the object types. The only sprites
that are converted in MAPEDIT (during loading and saving) are listed below.
If you have a creature sprite not using one of these tiles, fix it
immediately or risk certain death.

#	Name			Creature
896	kAnmPhantasmM1		Phantasm
1170    kAnmZomb1M1		AxeZombie
1270    kAnmHellM2		HellHound
1280    kAnmHellM1		HellHound (also)
1370    kAnmZomb2M1		FatZombie
1470    kAnmGargoyleM1		FleshGargoyle
1530    kAnmGargStatue		FleshGargoyle Statue
1570    kAnmGillM1		GillBeast
1595    kAnmGillM2		GillBeast (also)
1745    kAnmRatM1		Rat
1792    kAnmPodM1		GreenPod
1797    kAnmTentacleM1		GreenTentacle
1835    kAnmEelM2		Eel
1870    kAnmEelM1		Eel (also)
1920    kAnmSpiderM1		RedSpider
1948    kAnmBatM2		Bat (sleeping)
1950    kAnmBatM1		Bat (flying)
1980    kAnmHandM1		Hand
2680    kAnmCerberusM1		Cerberus
2820    kAnmCultistA1		TommyCultist    *
2860    kAnmCultistM1		ShotgunCultist  *

-----------------------------------------------------------------------------

95/07/03

Maps of version 4.00 are auto converted to version 4.01.  The conversion
involves adjusting the z position of wall and face sprites to handle the new
origin alignent mode.

Added new lighting type, Flicker3.  This is a mostly on, flakey flourescent
light sort of flicker effect.

Added our tile preloading code from Blood to MapEdit, so you should have less
lurching due to tiles not being in memory.

-----------------------------------------------------------------------------

95/07/08

Rewrote "O" code to paste sprite onto a wall.  Let me know if you still have
occasional problems ornamenting sprites (where it won't go onto the wall).

-----------------------------------------------------------------------------

95/07/09

Fixed a problem where marker sprites would occasionally get converted to
other sprite types if they had a picnum which got recognized by Nick's
conversion code.

Improved performance of 2D display code by eliminating unnecessary math for
non-displayed red walls.

Now that sprite FIFO code is working, the insertsprite cover function now
sets all new sprites to the following defaults:

	sprite[].cstat = kSpriteOriginAlign;
	sprite[].shade = 0;
	sprite[].pal = 0;
	sprite[].clipdist = 32;
	sprite[].xrepeat = 64;
	sprite[].yrepeat = 64;
	sprite[].xoffset = 0;
	sprite[].yoffset = 0;
	sprite[].picnum = 0;
	sprite[].ang = 0;
	sprite[].xvel = 0;
	sprite[].yvel = 0;
	sprite[].zvel = 0;
	sprite[].owner = -1;
	sprite[].lotag = 0;
	sprite[].hitag = 0;
	sprite[].extra = -1;

This should help cure some of the problems caused by sprites being inserted
with bogus values in the fields.

Renabled CRC checking for loaded maps.  Let me know if you have any problems
in loading some of your converted maps.

ALERT!  Ken made some clipping fixes to the engine which may cause sprites
that are exactly on the wall to be non-visible.  This is especially true with
red walls.  Changed the ornament function ("O" or "S" while pointing at a
wall) so that sprites are offset from walls by 1/4th a pixel distance.  You
should go through your maps and re-ornament all walls.  Unfortunately,
there's not an easy way to do this automatically.

Ornamented sprites are set by default to non-blocking and 1 sided.

All dudes (creatures) are set to non-blocking and non-hitscan in the editor.
This makes it a lot easier to move around in 3D mode.  Don't worry, the
status bits are automatically set to the appropriate values in the game.

-----------------------------------------------------------------------------

95/07/17

Fixed a bug with ammo names. Load and save all your maps. We apologize for
this inconvenience.

-----------------------------------------------------------------------------

95/07/20

			 !!! MAP VERSION CHANGE !!!

Once you've backed up all your maps in another directory or ZIP file, run the
CONVDB5.EXE conversion utility. You can use wildcards, so typing "CONVDB5
*.MAP" is acceptable.  The old maps will be saved with an extension of ".MA4".

This update adds fields necessary for implementing creature AI.  You'll see
fields added to the XSprite dialog shortly.

Fixed a bug in the code to auto align wall textures -- it would occasionally
get caught in a loop and bail out after a certain number of iterations.  Now
it should correctly detect when it is looping around walls.

You can now press F10 while editing the rxID and txID fields, and it will
automatically fill in the next unused channel.

Object type is now stored in the former lotag field, and object mass is
stored in the former hitag field.  Do NOT edit lotag or hitag manually.

Fixed a crash bug that would occur if you pressed Enter in 2D mode while a
wall was not highlighted.

Optimized the sectorofwall() function, which probably won't make much of a
difference to anybody.

-----------------------------------------------------------------------------
95/07/27

* Added Ctrl-PgUp / Ctrl-PgDn support (3D mode) for sectors / walls
=============================================================================
When pointing at single-sided walls, the ceiling of the sector is modified.
When pointing double-sided walls, the sector ceiling or floor on the other
side of the highlighted wall is modified.

Ctrl-PgUp will set the highlighted sector ceiling to the next higher neighbor
ceiling z, or floor to the next higher neighbor floor z.

Ctrl-PgDn will set the highlighted sector ceiling to the next lower neighbor
ceiling z, or floor to the next lower neighbor floor z.

* Added Alt-PgUp / Alt-PgDn support (3D mode) for sectors / walls
=============================================================================
When pointing at single-sided walls, the ceiling of the sector is modified.
When pointing double-sided walls, the sector ceiling or floor on the other
side of the highlighted wall is modified.

Alt-PgUp will bring up a dialog box where you can manually type in the pixel
height of the ceiling or floor from its counterpart.

In other words, if you Alt-PgUp on a floor, you can type in the floor's
height from the ceiling. If you Alt-PgUp on a ceiling, you can type in the
ceiling's height from the floor.

Alt-PgUp and Alt-PgDn work the same way. If you can think of a cooler way to
do this, let me know.

Since not all of the monsters are selectable in 3D mode using the Alt-S object
menu, use Alt-S to first insert the closest monster (e.g. flesh gargoyle
instead of a stone gargoyle) then go into 2D mode and use AltF6 on the sprite
then select a new type. This should be fixed soon, when all the monster types
will be selectable through a list box.

-----------------------------------------------------------------------------
95/08/01

Fixed bug with sector joining. This bug was caused by us while trying to fix
a bug in the build.obj editor code that wasn't checking for invalid sectors
and walls when joining sectors. We still have the error checking code in, but
we the check is less strict than it was, since the strict check was causing
the code to bail out before joining sectors.

-----------------------------------------------------------------------------
95/08/02

Added what is hopefully the final fix for the resource/map caching problems
we were experiencing on machines with > 8MB. All map changes should be now
be flushed correctly, and the maps should reload without a problem.

Ctrl-Alt-Plus & Ctrl-Alt-Minus:

Made sector visibility keys work with sector highlighting, so you can now
highlight sectors with the RightAlt key in 2D mode, then go to 3D mode and
change the visibility of all highlighted sectors.

-----------------------------------------------------------------------------
95/08/03

Fixed hitscan blocking

Added 3D mode messages to wall and sprite x/y repeat keys.

Added 3D mode messages to wall x/y panning keys.

Added some new sample maps and a sample map definition file.

-----------------------------------------------------------------------------
95/08/04

Reverted to the previous keyboard method of handling sub-dialogs.  To exit
from the sector effects sub-dialog and save changes, press ENTER.  To return
to the xsector dialog, just press ESC.  Sorry for the inconvenience.

-----------------------------------------------------------------------------
95/08/06

Added respawning for items. Check out the sprite dialog using AltF6.
Monsters and barrels do not respawn yet, but they will soon.

-----------------------------------------------------------------------------
95/08/07

MapEdit is now MUCH faster in 2D mode, at the expense of a little memory
overhead.  The speedups should be particularly noticeable in maps where there
were a lot of captions being displayed.

-----------------------------------------------------------------------------
95/08/08

Tile #457 has been removed. Use tile #356 with palette 5 to emulate #457.
We apologize for this inconvenience

-----------------------------------------------------------------------------
95/08/09

Added support for moving only marked walls and sprites within motion sectors.
To mark a wall or sprite for motion, press the "K" key while highlighting the
object in 2D mode.  When the object is blue, it will move forward (in the
direction of the movement arrow, or the angle direction of the axis marker).
When it is green, it will move in the opposite direction.

You can also mark sprites for motion in Z Motion sectors.  If the sprite is
blue, it will move with the floor.  If it is green, it will move with the
ceiling.

Change the key for marking walls for motion from "M" to "K".  This was
done to allow setting walls to masked in 2D mode with the "M" key.  This
change actually occured a few revs back, but I forget to document either key
-- sorry.

Changed the color of marker sprites to green/yellow to yellow/white to
distinguish them from sprites marked with "K".  Marker sprites normally
appear yellow.  If the cursor is in the sector they apply to, they are shown
in white.

There are now three different types of slide and rotate sectors. The first
type, Slide Marked and Rotate Marked, will move only marked walls and
sprites.  The second type, Slide and Rotate, will move ALL walls and marked
sprites.  This is useful for sectors where you don't want to mark all the
walls individually.  The third type, Slide Crush and Rotate Crush, isn't yet
implemented, and acts like the move ALL types.

-----------------------------------------------------------------------------
95/08/16

You can now rotate sectors more than 180 degrees!  Use the [/] keys to rotate
a sprite in 2D mode without wrapping at 0 and 2048.  All axis markers
for doors which rotate CCW are automatically set to negative angles.  You'll
understand how this works when you take a look at the markers.

Slide sectors can rotate!  Just set the start and end angles in the on and
off marker sprites.  Rotation will occur around the center, as determined by
the relative position of the ON marker.

-----------------------------------------------------------------------------
95/08/16

Added and refined descriptions at the top of this document, mainly duplicating
material from the older BUILD.TXT file.

-----------------------------------------------------------------------------
95/08/20

Updated Alt-S game object insertion to use new keys, weapon and dude tiles.

-----------------------------------------------------------------------------
95/08/22

Added mirrors to our game. Supports up to 64 mirrors per level. Mirrors
cannot reflect other mirrors, so keep them far apart. Mirrors are created
using a 1-way masked walls on red lines (double-sided linedefs.) The area
behind the mirror must be the same size and shape as the area in front of
the mirror. Apply the "mirror" texture (I think #504) to 1-way walls to
make them a mirror.

-----------------------------------------------------------------------------
95/08/29

*** CONFIDENTIAL! DO NOT DISCUSS THE FOLLOWING UPDATE! ***
We've added slopes to our game. Slopes will be in Blood, Duke,
Ruins & Shadow Warrior. The 3D mode keys used to add or modify
slopes are listed above. See [, ], \, and Alt-F

-----------------------------------------------------------------------------
95/09/05

Added hazards and miscellaneous sprites to the Alt-S menu.  Check out
inserting coop mode starting positions in the Misc menu.  NOTE: Inserting
switches using this menu isn't working yet.

Added simple one-way teleporters to the editor. Create a teleport sector and
a teleport marker will be inserted. Move that teleporter to the destination.
For two-way teleporters, create the same at the destination and drag the
marked to the first teleporter. Switched teleporters may work, but I haven't
tested them yet. This could make for some interesting deathmatch play where
you need a temporary ally.

-----------------------------------------------------------------------------
95/09/10

Modified the way that Alt-F key works. You can now select the first wall of a
sector by pointing at it in 3D mode and pressing Alt-F. Pointing at the floor
or ceiling and pressing Alt-F will make the first wall the next wall in
clocking order.

You can disable all panning with the F11 key. This is useful for aligning the
textures of panAlways sectors and walls.

-----------------------------------------------------------------------------
95/09/15

When you insert a new sprite, if a sprite is not already in the tab buffer,
you are given the opportunity to pick the tile for the sprite.  Pressing
Escape will allow you to abort the sprite insertion.  The ability to abort
also applies to inserting game objects with Alt-S.

The Light bomb has been fixed.  Because some of the math has been changed,
you will need to update some of the constants in your MAPEDIT.INI file. Here
are my default constants:

	[LightBomb]
	Intensity=4		; controls how bright the light is
	Reflections=3		; maximum number of reflections
	Attenuation=0x0000	; how much light gets diminished
	MaxBright=-4

Intensity controls how bright the light source is.  You can increase this
value if you don't like pressing L a lot to brighten up a room, but you won't
get as much fine control with it then.

Reflections is the number of times each light ray is allowed to bounce.  If
this value is 0, no reflections are calculated (and the process is much
faster).  More reflections can help by creating more diffuse lighting
effects.

Attenuation controls how much the light is diminished when it reflects off a
wall or floor.  A value of 0 is a perfect reflection, and a value of 0x10000
would result in non-reflective walls.

MaxBright sets the limit on how bright the light bomb is allowed to make a
wall.  By prevent the wall shade from getting too bright, you retain the
ability to see some of the dynamic sector lighting effects, which won't be
visible is the shade is too much < 0.

Texture alignment code overhauled!  I think this new version should do
everything you could want it to do (with reason).  It now follows multiple
paths, aligning everything connected with the same texture perfectly.  It
aligns red walls correctly, regardless of where the texture is pegged, and
even knows about slopes.  You will be amazed. :-)

For the sake of speed and congruity, I changed the key strokes for adjusting
wall x/y repeat and x/y panning.  The arrows on the numeric keypad now
adjust the panning of wall textures by a factor of 8.  If you want fine
alignment, use the Shift key (sound familiar?)  To adjust the wall scale,
press the 5 key on the numeric keypad while pressing the arrows.  This change
should make it a little easier to manually adjust texture panning, since you
won't have to hold so many darn keys down.

For those of you with ingrained editor habits (or who have to use BUILD for
other projects), you can retain the old keypad behavior by adding the
following to the [Options] section of your MAPEDIT.INI file:

	[Options]
	OldKeyMapping=1

This works the same way except for sprites, in which the function of the pad
5 is reversed.  I did it this way because you seldom (if ever) need to adjust
the x/y offset of sprites.

-----------------------------------------------------------------------------
95/09/16

Added a timer event generator to the sprite type list.  See the
appropriate section in XSYSTEM.TXT.

-----------------------------------------------------------------------------
95/11/26

Fixed a rather subtle but NASTY map screw up bug which would occur if you tried
to use Alt-F on a ceiling or floor of sector 0.  I intruced this bug when we
went to the new map version.  Sorry about that. :-(  If you are curious what
caused this, I made wall->point2 an unsigned value, not realizing that it can
go negative during wall order rotation.


-----------------------------------------------------------------------------
95/12/27

Modified dialog boxes, adding new fields like interruptable, lock, etc.
Added dude-specific flags to the sprite dialog box.

-----------------------------------------------------------------------------
96/01/07

Fixed sprite insertion and z movement functions so that sprites will go on
floors and ceilings correctly.

Changed '/' key so that is resets flip bits for floors and ceilings.

Changed Alt-C so that it will change palookups if the picnum is the same in the
tab buffer.

Fixed an assertion bug that would occur when dragging highlighted points.

-----------------------------------------------------------------------------
96/01/16

Added WaterDrip generator code.