ChangeLog

btechmux 1.4.4:
    (All changes by Focus unless noted otherwise)
    - New MUX functionality:
	* Don't show players set UNFINDABLE in the hardcoded WHO.
	* Added 'opaque' and 'transparent' channel settings. opaque channels
	  do not show people set UNFINDABLE on 'who', transparent channels
	  do (like before.)
	* Port the %cu colour code, for underline, from Stephen Dennis's
	  TinyMUX2.
	* Allow exits to be @teleported, since you can pick them up and drop
	  them as well.
	* Remove *ridiculous* filedescriptor caching code that wanted to use
	  fd 0 for all file operations. It interferes with debugging tools,
	  and it serves no use that I can imagine, other than not requiring
	  open()s and close()s to match.

    - New btech functionality:
	* Mace code contributed by Brian Stamper.
	* Show 'DUG IN' and 'DIGGING IN' on scan/status, contributed by Greg
	  Taylor
	* Supercharger code contributed by Brian Stamper
	* Add new 'status' flag to MECH objects, 'j', which disallows
	  movement without messing with the unit's speed (for EVs and such)
	* Emit DS deaths, takeoffs, landings and map exit/enter events to the
	  DSInfo channel, rather than the MechDebugInfo channel. This breaks
	  scode that relies on it being on MechDebugInfo!
	* Have searchlights illuminate terrain on DARK maps properly
	* Have clairvoyant units always see all terrain on DARK maps
	* Treat seismic contacts as enemy contacts always
	* ATTACHCABLES, allow units with hands to tow if a unit with hands
	  (or a disembarked MechWarrior) attaches cables
	* Break towing cables on a rear hit on non-SALVAGE_TECH units
	* On DARK maps and los-tacticals, have fires and jellied units
	  illuminate their surrounding hexes, instead of blocking LoS.
	* Calculate weight in 1024th-tons instead of 100th-tons, making Clan
	  MachineGuns weigh the correct amount.
	* Use the 'real' weight of a unit (subtracting for lost ammo, armor
	  and limbs) for DFA (like towing already did.)
	* Controlled by the WEIGHT_OVERSPEED define in btconfig.h, allow
	  units to exceed their maximum speed when they lose weight.
	* Don't allow 'Mechs to run in water. Mechs running into water make
	  a higher roll to stay standing and get more damage on fall.
	* Don't allow disembarked MechWarriors to embark a unit with a
	  dysfunctional cockpit
	* On disembark/eject/autoeject, copy freqs and modes (but not
	  titles) from the 'mech to the disembarked MechWarrior (controlled
	  by the COPY_CHANS_ON_EJECT #define)
	* On disembark/eject/autoeject, give the MechWarrior a random
	  frequency (controlled by the RANDOM_CHAN_ON_EJECT #define)
	* Log 0-freqs on IC maps to the ZeroFrequencies channel
	* MaxTech based stagger code, if enabled with @admin
	  btech_newstagger.  Roll for stagger once a turn, but modified by
	  the amount of damage done in the turn.  Also add stagger checks
	  during/right before jumps.
	* Fix BTH speed modifiers over 10MP to be BMR FASA standard, or
	  MaxTech FASA standard if @admin btech_Extendedmovemod is used.
	* Update the unit template database with 3030's, includes a lot of
	  weight glitchfixes and cleans up the customs.
	* Rewrite and document internal 'real coord to hex coord' and
	  vice-versa code. Same algorithm, just a more obvious
	  implementation and lots of explanation.
	* Rewrite navigate to draw 'mech locations more accurately, based on
	  a grid instead of angle-and-distance-to-centre.
	* Add a sixth (optional) argument to the @mapvis attribute on maps:
	  a message to broadcast to all units on the map when the changes
	  take actual effect.
	* Make heatcutoff slightly less munchy by only disabling whole
	  (single or double) heatsinks, and only one heatsink per tick
	* Don't insta-re-enable heatsinks when disabling heatcutoff
	* List 'TSM(On)' and 'TSM(Off)' on status, not just colours.
	* Conform super-heavy engine weights (rating above 400) to conform
	  to FASA MaxTech.
	* Add weight-based variable armor diagrams; different pictures for
	  light, medium, heavy and assault units. Contributed by C.W.
	  Glover, and controlled by the WEIGHTVARIABLE_STATUS #define.
	* Optionally let OBSERVATORIC units have ObservationLounge-like
	  radio behaviour: hear everything, regardless of frequency.
	  Contributed by an anonymous person and controlled by the
	  OBSERVATORIC_OL_RADIO #define.
	* Optionally have less severe stacking. @admin btech_stacking now
	  means:
	  0: no stacking punishment what so ever
	  1: a stacking 'mech stops suddenly, and has to make a pilot roll
	     modified by the number of units in the stack.
	  2: involuntary charge by the stacking 'mech (default, and unchanged.)
	* Make damage done in case of stacking option 2 configurable. 
	  btech_stackdamage is a percentage of damage to apply, defaulting
	  to 100.
	* Fix the provided MechWarrior template to have short radio and
	  tactical ranges, as well as no digital radio.
	* Optionally always let MechWarriors have LOSMaps only; controlled
	  by @admin btech_mw_losmap (defaults to on)
	* Add Silicon as commodity type, next to Sillicon to avoid breakage
	* New 'mechprefs' command, consolidating a set of 'settings':
	  - Convert old 'weapon safeties' to 'MWSafety' mechpref (on by
	    default)
	  - FFSafety: like MWSafety but for friendly fire (off by default)
	  - SLWarn: warn when lit by searchlight (off by default)
	  - ArmorWarn: warn when armor is low/critical/breached (on by
	    default)
	  - AmmoWarn: warn when ammo is low (on by default)
	  - AutoFall: don't try to stop when hitting a cliff (off by
	    default)
	  - AutoconShutdown: See shutdown units on autocon (off by default)
	* Add 'stand check', to display BTH to stand
	* Add 'stand anyway', to stand regardless of BTH
	* Make 'stand' not try and stand when BTH exceeds 12
	* Make VRT more easily configurable, by providing just the times for
	  the various weapons in a separate include file. Customization can
	  be easily done by adding your own include file.
	* Skip sections that have no internals, when calculating weight, to
	  avoid broken temlates with 'phantom' sections.
	* Add 'c' flag to 'lrs', for 'colorized elevations', which shows
	  elevations but colorized by actual terrain type.
	* Add 'navigate <target>' and 'navigate <bearing> <range>',
	  mimicking lrs and tactical. Maximum range is that of tactical.
	* Add 'tactical b', showing valid DropShip LZ's
	* Add 'checklz x y' to checklz, to check hexes other than the
	  current one.  Maximum range is that of tactical.
	* Allow @mapcolor attributes to be set to shorter strings than the
	  maximum, padding it with the defaults.
	* Add 'valid LZ' and 'invalid LZ' color characters to @mapcolor,
	  default bright green and bright red.
	* Protect some xcodevalues from being changed, particularly ones
	  that could cause memory corruption when changed incorrectly

New scode functions:
	* cemit(<channel>, <message>)
	  Mimick @cemit from scode.
	* setlock(<type>, <object>/<attribute>, <lock>)
	  Mimick @lock/<type> <object>/<attribute> = <lock>. For @lock
	  without /type, set <type> to 'defaultlock' or the empty string. 
	  <attribute> may be empty, as well.
	* btpartmatch(<string>)
	  Wildcard-match in long-name parts database (like addstuff does)
	  and return a part number.
	* btpartname(<partnumber>, <which>)
	  Turn a partnumber into a name.  <which> is 'short', 'long' or
	  'vlong' depending on which name you want.
	* bthexlosbroadcast(map, x, y, msg)
	  Broadcast a message to all units within Line of Sight of hex
	  (x,y).  In the message, '$h' is replaced by the hex (x,y), or the
	  string 'your hex' for units in that hex. '$H' is replaced by the
	  same, but the (x,y) is in bright yellow and units in the hex get a
	  bright red 'YOUR HEX' instead.
	* btmakepilotroll(<mech>, <rollmod>, <dammod>)
	  Force <mech> to make a pilotroll, with <rollmod> penalty. On
	  failure, the unit falls over (with <dammod> as 'number of levels
	  fallen').  Returns 0 on failure and 1 on success.
	* btgetreftech(<ref>)
	  list the 'tech' used in mechref <ref>, like 'showtech' in MECHREP
	  objects.
	* btgetdbreffromid(<mech or map>, <mechid>)
	  Get dbref of <mechid> relative to <mech>, if it is in LoS, or from
	  <map> directly.
	* btlostohex(<mech>, <x>, <y>)
	  Return whether <mech> has LoS to <x>,<y>
	* btlostomech(<mech>, <other>)
	  Return whether <mech> has LoS to <other>. Both should be dbrefs,
	  not mechids.
	* btaddparts(<location>, <partname>, <amount>)
	  Add <amount> <partnames> to <location>. Wildcards are accepted but
	  only the first match will get added.
	* btloadmech(<object>, <mechref>)
	  Load new <mechref> onto <object>, as if done through a MECHREP
	  object and 'loadnew'. Returns success/failure.
	* btloadmap(<object>, <mapname> [, <clearmechs>])
	  Load new map <mapname> on <object>, and clear mechs if
	  <clearmechs> is passed and true. Return success/failure.
	* btmechfreqs(<mech>)
	  Return a comma-separated list of frequencies set in mech, with
	  title and modes, in the format:

	    <channum> | <freq> | <flags> | <colour>

	  where <channum> starts at 1, <freq> is the actual frequency set,
	  <colour> is the colour setting for the channel (a capital meaning
	  bold) and <flags> is a bitvector of:
	    a: set digital
	    b: set muted
	    c: set relay
	    d: set info
	    e: set scan
	  comtitles are not returned because of escaping issues.
	* Make second argument to btstores() optional. When just passed a
	  location, show all parts of that location in a |-separated list of
	  partname:amount pairs.
	* New 'sensorflags' xcodevalue for map objects, to indicate sensors
	  that are not usable on the map. A bitvector string, where the
	  letters mean:
	    a: Visual
	    b: Light Amp
	    c: Infrared
	    d: Electromagnetic
	    e: Seismic
	    f: Radar
	    g: Beagle Active Probe
	    h: Bloodhound Active Probe
	* New 'mapflags' for maps:
	    g: bridges are CombatSafe
	    h: do not convert road to bridges on loading of map
	* New radiotype value, 128, indicates the radio can't do digital
	  transmissions. Set in the MechWarrior template to disallow MWs to
	  do digital radio.
	* New 'mechjumpspeed' xcodevalue for 'Mechs: jumpspeed in kph, which
	  is also the range.
	* New 'mechjumpheading' xcodevalue for 'Mechs: heading of current
	  jump
	* New 'jumprange' xcodevalue for 'Mechs: range of the current jump
	  in 322.5th of a hex.
	* Add 'mechprefs' xcodevalue to 'Mechs:
	    a: MWSafety is off
	    b: SLWarn is on
	    c: Autofall is on
	    d: ArmorWarn is off
	    e: AmmoWarn is off
	    f: unused
	    g: AutoconShutdown is on
	    h: FFSafety is off

 MUX code bugs:
	* rewrite and(), or(), xor(), add() and mul() implementations
	* Don't allow channel messages to contain a newline (corrupts the
	  comsys db)

 btech code bugs:
	* fix obscure bug in building locks and CombatSafeness
	* fix radar not calculating height of target properly
	* fix HUDINFO scan giving incorrect info or crashing
	* fix aeros getting strafing run BTH bonus while landed
	* fix DropShips getting +2 BTH penalty while firing landed
	* only drop clubs if you are carrying one
	* accumulate Tech-Weapons XP when using Tech-Weapons skills
	* properly set flying units 'landed' when they crash
	* disallow IDF on UNDERGROUND maps
	* don't allow seismic to 'see' buildings
	* don't make dead units always fall off the bridge they died on
	* only report takeoffs of DropShips, not other Aeros, on DSInfo
	* don't assume a unit can always see its own hex, on DARK maps
	* don't allow cliff-tacticals on DARK maps
	* conform weight calculation to FASA; round various values properly
	* fix bug in engine rating calculations for high speeds
	* add a slight delay between a 'Mech being zeroed by a Stackpole,
	  and its database object being destroyed, in order for scode to
	  properly notice.
	* allow for stackpole even when it isn't triggered by weaponsfire
	* correct the weight of the RocketLauncher-20 (1.5 tons, not 3)
	* don't allow charging or DFA'ing of MechWarriors   
	* take weapon safeties into account for physical attacks on
	  MechWarriors
	* fix bug where aiming for the Left Arm/Side/Wing with a TargComp
	  would not get a BTH penalty for mobile units.
	* set weapons recycling even when they have a 'round spirals off'
	  failure
	* show InfantryTech in the short 'showtech' list
	* broadcast when a unit gets jellied
	* allow maps to have 0 visibility
	* don't show 3D range for hexes on dark maps (since you can't see
	  terrain height)
	* fix bug where 'addtech' didn't correctly add LifterTech,
	  LightEngine_Tech and CritProof_Tech.
	* fix various missing or incorrect boundary checks
	* don't allow tanks to dig-in on bridges
	* don't allow quads to go hulldown while moving
	* make physical attacks gain better XP
	* don't allow MechWarriors to spot
	* fix crashing bugs in ammo dumping code
	* fix various issues with naval units, and submarines in particular
	* fix bug where VTOL/Aeros flying straight out of their bay and
	  never stopping, effectively moved twice as fast as other units of
	  the same speed.
	* allow 'Mechs standing in level 1 water punching vehicles.
	* don't allow PCOMBAT weapons to clear woods.
	* fix HELP message for INARC.
	* fix bug where a flooded and then blown off section still needs
	  resealing after the reattach.
	* fix bug where cliffing underneath a bridge could place you ontop
	  of it
	* fix bug where units destroyed under bridges would end up on top of
	  them
	* don't slow down hovers when moving over water of different depths
	* don't allow fallen 'mechs to enterbay, just like they can't
	  enterbase
	* have Streak weapons fired on hexes behave like Streak weapons.
	* don't allow pickup of units that are too high above you
	* fix obscure bugs in overspeeding code (low gravity)
	* fix XP distribution for spotting/IDF situations; the spotter gets
	  Spotting XP, the firing unit gets Artillery XP.
	* fix bug where shutting down while MASC'ed and starting up fast
	  would give you perma-MASC without risk.
	* don't allow tanks to 'extinguish' more than once at a time
	* properly extinguish fires when entering water hexes
	* don't let 'sight' on hexes show whether there's a unit inside it
	* Fix 'X-Ray SearchLights' that would illuminate units through
	  blocking terrain.
	* Don't allow running in water underneath ice either
	* Break ice when standing in level-1 water
	* Properly kill tanks breaking through ice, with message and all
	* Break ice when picking up a unit 'through' the ice
	* Don't let OODing mechs count toward stack limits
	* don't cliff hoves that go from l0 bridge to l1 bridge
	* don't drown vehicles that manage to break l0 ice
	* fix bug where btdamagemech() with a clustersize of 0 would hang
	  the MUX
	* fix crashing bugs in macros
	* fix various memory corruption bugs and other issues found by
	  Valgrind
	* fix off-by-one error in loading maps of X size 1000
	* fix various places that had differing messages for 'no such ID on
	  map' and 'no LOS to ID', to prevent 'ID-scanning'.
	* fix off-by-one error in kick range test in autopilots, causing
	  them to always or never try to kick, instead of just when in
	  range.
	* don't use the lowest order bits from random() if at all possible;
	  they tend to be a lot less random. If we need more than a few
	  bits, it doesn't really matter, but on a D6 roll it does.

btechmux 1.4.3:
    - new features
	* Rocket Launchers from FM: Periphery (Cord)
	* HUDINFO version 0.6 (optional, default on) (Focus)
	* Part weight (optional, configure in btconfig.h) (Greg Taylor)
	* New connect.txt's for the MUXample DB (Greg Taylor, Focus)
	* Variable Recycle Time (optional, configure in btconfig.h) (Cord)
	* New Stagger code: stagger only once a turn (Focus)
	* add Clan MicroPulseLaser weapon from BMR (Focus)
	* Rework 'status short' to show more useful info (NC, Focus)
	* Fusion VTOLs no longer need fuel (Cord)
	* Add 'None' to argument for 'settype' (Greg Taylor)
	* @log and logf() to log to arbitrary files in the 'log'
	  directory (optional in config.h, default on) (Kevin Stevens)
	* Rework hcode.db loading code so XCODE structs are growable,
	  reducing the need for hcode.db wipes in the future (Focus)
	* 'enterbay' command to AUTOPILOTs, in both radio-controlled
	  and programmed modes. (Focus)
	* Use building or dropship hangar's @FAIL attribute as 'failure'
	  message when trying to enter a base or bay (Focus)
	* MechWarrior Companion advantages (Bloodname, Combat_Sense,
	  Contact, Dropship and EI_Implant) and skills (Drive-Naval,
	  Piloting-Battlesuit, Riding, Technician-Battlesuit,
	  Technician-Spacecraft and Zero-G_Operations.)
	  Piloting-Battlesuit differs from Piloting-BSuit in that it is an
	  Atheltic skill, rather than a Physical one, and also in that it
	  isn't used in actual code yet. (Focus)
	
    - Bugfixes
	* Rewrite (template) weight calculation code to be more correct for
	  both 'mechs and tanks. The main impact is on tanks, however, as
	  the weight calculation for those was very wrong. Also fix many
	  templates to comply to the new rules. (Focus)
	* Rewrite weapon weight calculation so Long Toms and Clan
	  MachineGuns have their actual weight. (Focus)
	* Lots of C3/C3i fixes (Cord)
	* Lots of Battlesuit fixes (Cord)
	* Report the correct 'mech on MechXP when fixing, removing or
	  replacing guns (Cord & Focus at the same time)
	* Use the correct cargo type when repairing Compact, Light and XXL
	  Engines (Focus)
	* Fix (very old) comparison between pointer and integer that had
	  potential to crash the MUX when using Extended Range. (Focus)
	* Fix weight of IS Ultra AC/2 (was 6, should be 7 tons) (Focus)
	* Prevent Death-XP-removal code from handing out XP if the
	  btech_xploss config setting is too high (Focus)
	* Ignore whitespace in config file rather than complaining about
	  'unknown directives' (Focus)
	* Robustify mkindx to deal with long lines (Focus)
	* Take Pilot skills into account when doing BV calculations for XP
	  gain (Cord, bug found by Marcus Hazen@3030)
	* Prevent jumping 'mechs from being picked up (Cord)
	* Disallow enterbase until unit speed is close to 0 kph,
	  not 10.75 kph (1MP) (Cord)
	* Sanitized weapon-arc handling, giving tanks and 'mechs the
	  same (FASA) weapon arcs (Focus)
	* Fix tank 'ammoboom' critical hits (Cord)
	* Fix 'stores' and 'manifest' to show '1k' (or higher) rather than
	  always 999 for values over 999 (Focus)
	* Lots of removal of dead code (Focus)
	* Lots of code cleanup (Cord, Focus, NC)

btechmux 1.4.2:
    - New features
	* Add compile-time setting (DO_PARSE_WIZNEWS) to enable %-parsing of
	  the 'wiznews' file. (Greg Taylor & Focus, SF patch #500268)
	* Allow 'who' and 'last' on channels that you currently do not have
	  'on', if you are a Wizard or the @admin allow_chanlurking is on
	  (defaults to off) (Focus)
	* Allow 'setteam' to set the team num to any int, rather than up to
	  and including 26. (Focus)
	* Add 'b' (for BattleSuits) as argument to 'settype'
	  (Greg Taylor, SF patch #500269)
	* Add a number of maps from Greg Taylor (SF patch #500071)
	* Reworked build mechanism so GDBM is no longer needed. dbconvert is
	  not built by default now; use regular TinyMUX dbconvert if you
	  need it. (Focus)
	* Add player-customizable tactical/navigate/lrs colors, using
	  the MAPCOLOR attribute. (Focus)
	* Allow 'repairs' and 'damages' commands outside of stalls if
	  btech_limitedrepairs is false. (Cord)

    - Bugfixes
	* Fix a longstanding crashing bug in regmatch() (Focus & Null)
	* Fix crashing bug in AUTOPILOTs if any are 'active' during
	  @restart/startup. (Focus)
	* Big overhaul on the comsystem, removing numerous crashing bugs
	  without introducing too many new ones (hopefully) (Focus)
	* Fix a few of the checks in configure so crypt() is properly
	  detected. (Focus)
	* Fix buglet in @mechstatus support that caused armor/internal
	  numbers to always show up in highlighted-black, even if the
	  section was destroyed. (Focus)
	* Fix SF bug #500646: spurious DAMAGED weaponstatus for large
	  (multi-crit) weapons in vehicles. (Focus)
	* Set speed of dropped-off units to 0 (NC)
	* Plug buffer-overrun in 'loadnew' command and a few others that
	  use it. (Focus)
	* Fix spurious warnings about empty lines in the MUX .conf file.
	  (Focus)
	* Fix SF bug #502112, the sizes of Aerodyne and Spheroid dropships
	  for hexlos-tracing were swapped. (Focus & Null)
	* Fix bug where a tank driving off a cliff into water wouldn't get
	  auto-killed (missing water checks.) (Cord)
	* Fix weapon destruction for 'damaged' weapons. (Cord)
	* Add missing '<item> destroyed!' messages for damaged items;
	  this could cause CRITICAL HIT!! messages without saying what was
	  critically hit. (Cord)
	* General code cleanup and removal of dead code (NC, Focus)

btechmux 1.4.1:
	* Re-package slightly differently, to avoid broken downloads
	* Mark the game/data/ files as 'binary' in CVS, as they are
	* Add CodingStyle document
	* Guard against possible 'out of map' problem in artillery (NC)
	* Make @mechstatus (custom 'status' template settable from scode) 
	  working again. (Focus)
	* Fix bug in 'status' where ')' in the 'status' template script was
	  incorrectly handled. (Focus)
	* Make the MechPer() (perception modifier) value of a 'mech visible
	  and changeable from scode. (Focus)

btechmux 1.4.0: baseline release