CONQHIST

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#
#                             C O N Q H I S T
#
#            Copyright (C)1983-1986 by Jef Poskanzer and Craig Leres
#
#    Permission to use, copy, modify, and distribute this software and
#    its documentation for any purpose and without fee is hereby granted,
#    provided that this copyright notice appear in all copies and in all
#    supporting documentation. Jef Poskanzer and Craig Leres make no
#    representations about the suitability of this software for any
#    purpose. It is provided "as is" without express or implied warranty.
#
###############################################################################
#
#	A continuation of the revision history that lives in "incl/conqdef"
#
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#
# 4.13 24Sep85 CAL .Executeai(): Always zero slock when setting course.
#                  .Doautopilot(): Clear both message lines when prompting.
#                  .Newship(): Zero saction since we're never a robot.
#                  .Initrobots(): Make new robots multiples.
# 4.12 23Sep85 CAL .Secdrive(): Don't do robot stats for autopiloted ships.
#                  .Doautopilot(): Zero saction when done so isn't displayed.
#                  .*(): Add enemy damage variable.
# 4.11 16Sep85 CAL .*(): Add robot autopilot.
# 4.10 15Sep85 CAL .*(): Add last robot action variable.
# 4.09 13Sep85 CAL .Playlist(): Modified to handle multiple screens. Removed
#                   opplaylist() and doplaylist().
#                  .Userlist(), userstat(): Make TERM_EXTRA return to the
#                   first page.
# 4.08 09Sep85 CAL .*(): Add code to allow robots to read and reply to messages.
# 4.07 08Sep85 CAL .Ever more robot AI hacking. Nuke old robot code (finally).
#                   Rearrange the common block to get robot stuff in the right
#                   place.
#                  .Conqstats(): Don't add robot stats to team stats.
# 4.06 07Sep85 CAL .Findspecial(): If at peace with all teams, consider
#                   unscanned planets when looking for fuel or repairs.
# 4.05 06Sep85 CAL .More robot AI hacking.
# 4.04 02Sep85 CAL .Robot AI hacking.
# 4.03 15Jun85 CAL .Mail hacking; added mail_tools() and mail_dcl().
# 4.02 27Apr85 CAL .Use new strcpy() instead of stcp macro.
# 4.01 03Nov84 CAL .Doomdisplay(): Add missing argument to cdputn().
# 4.00 12Sep84 CAL .*(): Include file name hacking.
# 3.99 08Sep84 JP  .Dodet(), domydet(): Clear second message line.
# 3.98 25Jul84 CAL .Increased maximum tractor warp difference.
# 3.97 19Jul84 CAL .*(): Modified to use new iolb routine names.
# 3.96 16Jul84 CAL .*(): Changed usage of iobeep() to scbeep().
# 3.95 09Jul84 CAL .Command(): Always set credaw before executing the command.
# 3.94 08Jul84 CAL .Doselfdest(): Get entry time stamp before the display().
#                  .Command(), dosubdcl(): Update the display while comfirming.
#                  .Drcreate(): Can't default the sub-process priority since
#                   it's passed as a value and so defaults to 0.
# 3.93 04Jul84 CAL .*(): Added new satwar() and selfwar() macros.
# 3.92 03Jul84 CAL .Opedit(): Add more ways to exit.
#                  .Dodistress(): Add engines and weapons down.
# 3.91 26Jun84 CAL .Menu(): Fixed bug which prevented resignation.
#                  .Teamlist(): Coup info hacking.
# 3.90 18Jun84 CAL .*(): Modified to use new pvlb.
# 3.89 17Jun84 CAL .*(): Rewrote cpu and elapsed statistics keeping. Cpu time
#                   is now kept for robots. Added common block rev level.
#                  .Grand(), dgrand(): New time routines.
#                  .gtenths(), dtenths(): Removed old routines.
# 3.88 16Jun84 CAL .Getdandt(): Removed hundreths.
#                  .*(): Added user the history list.
# 3.87 14Jun84 CAL .Command(), play(): Move message disabling code into play().
# 3.86 13Jun84 CAL .Docourse(): Can't set course accurately for a cloaked ship.
#                  .Statline(): Show user stats (finally).
# 3.85 12Jun84 CAL .Command(): Can't repair while cloaked.
#                  .*(): Extensively modified userlist() and userstats().
#                  .Statline(): New routine for userstats().
#                  .Stillalive(): Corrected failing logic.
#                  .Ikill(): Turn robots off when killing them.
#                  .Secdrive(): Don't worry about dead robots anymore.
# 3.84 11Jun84 CAL .Docourse(): Can't set course for a silent running ship.
# 3.83 09Jun84 CAL .Pagefile(): More work on control-L handling.
#              &&  .Newship(), newrob(): Nuke ENTRY_PAST_SUN_FACTOR.
#              JP  .*(): New usefuel(). Add weapons/engines down and new
#                   cool down constants.
# 3.82 07Jun84 CAL .*(): Use dtenths() to decide if it's new message time.
# 3.81 02Jun84 CAL .Vowel(): Converted into a macro.
# 3.80 01Jun84 CAL .*(): Added weapons temperature.
# 3.79 28May84 CAL .Secdrive(): Try to timeout reserved ships too.
#                  .Menu(), findship(): Initialize ssdfuse.
# 3.78 27May84 CAL .Secdrive(): Removed unnecessary test.
#                  .Drcreate(): Can't make the driver run at a priority
#                   higher than our own, so don't bother trying.
#                  .Gsecs(), gtenths(), dsecs(), dtenths(): New routines for
#                   handling time.
#                  .*(): Modified to use gsecs(), gtenths(), dsecs(), dtenths().
#                  .Midtim(), timdif(): Removed unused routines.
# 3.77 04Apr84 CAL .Mail(): Always delete the frigging mailbox...
# 3.76 31Mar84 JP  .Display(): Always give yellow alerts for scanned enemies.
# 3.75 14Mar84 CAL .*(): Buffer length hacking for input strings.
#                  .Watch(): Call opinfo() with GOD's number.
#                  .Dowar(): When changing war settings, only update the
#                   display once per second.
#                  .Doomdisplay(): Add distance to target and clean up.
#                  .Operate(): Get confirmation when closing the game.
#                  .Debugdisplay(): Don't clear the message lines.
#                  .Teamlist(): Show coup time for teams that know it.
#                  .Opinit(): Add lockword clearing.
# 3.74 10Mar84 CAL .Dodistress(): Temperature over 99 should be displayed "**".
#                  .Findspecial(): Consider uninhabitable time when looking
#                   for weak planets.
#                  .Raised class D crisis from 60 to 70.
# 3.73 08Mar84 CAL .Oppedit(): Require a line feed to make string changes.
#                  .*(): Corrected various spelling errors.
# 3.72 07Mar84 CAL .Dowar(): Require line feed to make a change in team
#                   alignment. Use display() manually to avoid typeahead
#                   problems in the computer delay loop.
#                  .Dispoption(): Change prompt message.
#                  .Dooption(): Require a line feed to make string changes.
#                  .Clearships(), initmsgs(): New initialization routines.
#                  .Preinit(): Renamed to opinit() and expanded to handle
#                   new initialization routines.
#                  .Initall(): Modified to use new initialization routines.
# 3.71 05Mar84 CAL .Findorbit(), iterdrive(): Reduce maximum orbit entry
#                   distance from PLANET_DIST to ORBIT_DIST to avoid jumps.
#                  .Dead(): Berate the user if he bails with armies on board.
# 3.70 04Mar84 CAL .Dowar(): Unnecessary to fool with asts around iotget().
#                  .Psuedo(), opuedit(): Allow zero length names if linefeed
#                   is used as the terminator.
# 3.69 03Mar84 CAL .Dosubdcl(): Allow display() to get in while prompting.
# 3.68 29Feb84 CAL .Infoship(): Avoid subscript problem with snum.
# 3.67 26Feb84 CAL .Acdist(): Fixed a stupid bug in the distance formula and
#                   suddenly the autopilot becomes a precison device.
#                  .Dowar(): Enable asts while waiting for a character so
#                   the display will work.
# 3.66 23Feb84 JP  .Display(): Don't give yellow alerts for selfwars unless
#                   they are close to us.
# 3.65 22Feb84 CAL .Sendmsg(): Implement last message editing.
#                  .Appnumtim(): New routine to format English time.
#                  .Doinfo(): Modified to use appnumtim().
#                  .Opinfo(): Current use of buf required it to be larger.
#                   Modified to use appnumtim().
#                  .Dobomb(), dobeam(): Cannot call cdgetx() with the same
#                   prompt and input buffer anymore.
#                  .Teamlist(): Always clear the lastwords line to avoid a mess
#                   when someone is entering new lastwords.
#                  .Newship(): Clear srobot since we never want to be a robot.
# 3.64 20Feb84 CAL .Takeplanet(): Zero lastwords when conquering the universe.
#                  .Play(), initship(): Put ulastentry time stamp in initship().
#                  .Defend(), newrob(): Don't consider robots who have the
#                   disable option.
#                  .Doselfdest(): Requre an escape to abort self destruction.
#                  .Debugdisplay(): General display hacking.
#                  .Capentry(): Abort for carriage return too.
# 3.63 19Feb84 CAL .Infoplanet(): Removed time of day hack.
#                  .Appnum(): New routine to format time in English.
#                  .Doinfo(): Info on "time" displays time of day.
#                  .Dobomb(): Doesn't hurt to always set ssrpwar when bombing.
#                  .Spwar(): Always return ssrpwar when not a team planet.
#                  .Operate(): Kill each ship before zeroing it to force
#                   stats to be updated. Modified to call opconst(), opuedit(),
#                   opuadd(), oppedit() instead of uedit(), options(), uadd(),
#                   and oppedit().
#                  .Uedit(), options(): Merged code into opuedit() and removed.
#                  .Opconst(): New routine for tuning constants.
#                  .Uadd(): Renamed to opuadd().
#                  .Opuadd(): Renamed from uadd().
# 3.62 18Feb84 CAL .Infoplanet(): Fixed team coup info (finally).
#                  .Canread(): Can read messages to the implementors if
#                   we have the GOD messages option.
# 3.61 17Feb84 CAL .Initship(), menu(), newrob(): Initialize the right
#                   ship variables in the right places.
#                  .Infoplanet(): Info on a sun includes time of day now.
#                   Modified to put the cursor at the beginning of the line.
#                  .Infoship(): Put the cursor at the beginning of the line.
#                  .Watch(): Clear the message lines before prompting.
# 3.60 15Feb84 CAL .Zeroship(): New routine to completely zero a ship.
#                  .Operate(): Modified to clear ships with zeroship().
#                  .Findship(): Modified to use zeroship().
#                  .Initship(): Reorganized.
#                  .Drkill(): New routine to kill the driver.
#                  .Drpexit(): Moved some code into the new drkill() routine.
#                  .Menu(): Try to kill the driver if the user stays in the
#                   menu very long after playing.
# 3.59 14Feb84 CAL .Display(): Always show torp symbols in the strategic map.
#                  .Dead(): Loop hacking to avoid locking the terminal up.
#                  .*(): Replace sterm and cterm with spid and cpid.
# 3.58 11Feb84 CAL .Iterdrive(): Fixed old ship ordering bug. Also, keep
#              &&   track of elapsed time for robots.
#              JP  .Secdrive(): Fixed old ship ordering bug.
#                  .Debugdisplay(): Display sterm.
#                  .*(): Remove references to reincarnation.
#                  .Play(), conquest(): Kill the driver at image exit time
#                   instead after each ship.
#                  .Drpexit(): Try to wait for the driver to exit.
# 3.57 05Feb84 CAL .*(): Added sterm to keep track of a ships terminal name
#                   and resolve some long standing ambiguities.
# 3.56 27Jan84 CAL .Pagefile(): Don't pause for formfeeds at the beginning
#                   of a page.
#                  .Docoup(): Always allow team coup info when attempting
#                   a coup.
# 3.55 22Jan84 CAL .Conqdriv(): Call iterdrive() at end of loop.
# 3.54 21Jan84 CAL .Newship(), newrob(): Enter outside home planet if it
#                   isn't orbiting the home sun.
#                  .Dountow(): Display a message if there's nothing to do.
#                  .Astservice(), operate(): Un-read a message if a character
#                   is ready to be read.
# 3.53 17Jan84 CAL .Dountow(): Let untractored ships coast to a stop.
#                  .Dodistress(): Report temperature (since it's important now).
# 3.52 16Jan84 CAL .Orbit(): Silly bug; was using wrong planet number index.
#                  .Infoplanet(): Silly bug; can't access snum when GOD.
#                  .Opinfo(): Use correct number of arguments to gplanmatch().
#                  .Doreview(): Loop hacking.
# 3.51 15Jan84 CAL .Findspecial(): Bogus case in switch broke army threshold.
#              &&   Don't consider uninhabitable planets weak.
#              JP  .Docourse(): Fixed bug with uninitialized variable.
#                  .Infoplanet(): Check for planet number bounds.
#                  .Usefuel(): Base engine explosion messages on terse option.
#                  .Review(): Show outbound messages when reviewing.
#                  .Dead(): Needed to clear the screen at the top of the
#                   conquer the universe loop.
#                  .*(): General hacking to catch dead ship timeout problems.
#                  .*(): Implement default weapons direction.
#                  .Menu(): Allow switch teams when entries is zero.
# 3.50 14Jan84 CAL .Iterdrive(): Move ship speed calculation into fixdeltas()
#                   and doomsday speed calculation into secdrive(). Also,
#                   repair shields twice as much if they're down.
#                  .Fixdeltas(): Multiply in ship speed calculation.
#                  .Secdrive(): Move in doomsday speed calculation.
#                  .Dotow(): Can't tractor if relative speed is too high.
# 3.49 13Jan84 CAL .Dountow(): New command to un-tractor ships.
#                  .Dotow(): Modified to only handle tractoring.
#                  .Operate(), conqds(): Modified to use dountow().
# 3.48 10Jan84 CAL .Command(): Modified to not use dorepair().
#                  .Dorepair(): Removed unused routine.
#                  .*(): Modified conqdriv to execute ships in random order.
#                  .Created src/conqmisc and moved many routines in
#                   from src/conqlb.
#                  .Created incl/conqhist and moved many lines of revision
#                   history in from incl/conquest.
# 3.47 09Jan84 CAL .General tuning.
#                  .Robot(): Don't talk to planets.
#                  .Readmsg(): Format planet names for the to field.
#                  .Defend(): New routine to create robot ships to defend
#                   the home system.
#                  .Intrude(): Modified to call defend().
#                  .Initeverything(): Modified to create robot guardians.
#                  .Infoplanet(): Don't tell if hostile unless team scanned.
# 3.46 08Jan84 CAL .Usefuel(): Engines can't blow up if no fuel was used.
#                  .Secdrive(): Don't call usefuel() with 0.0.
# 3.45 06Jan84 CAL .Phaserhit(): New routine to return phaser damage.
#                  .Phaser(): Modified to use phaserhit(). Set up the
#                   slastphase variable properly.
#                  .Dophase(): Don't worry about slastphase.
#                  .Robot(): Change weapons strategy to choose based on damage
#                   to enemy ship. Also base enemy torpedo detonate logic on
#                   damage. Add desire to detonate own torpedos. Added some
#                   repair logic and code to reply to ship messages.
#                  .Secdrive(): Turn off warp drive and cloaker when in
#                   repair mode. Also, turn off repair mode if cloaked.
#                  .Dorepair(): Only need to turn on mode now.
#                  .Getamsg(): New routine to find a readable message.
#                  .*(): Modifed N routines to use getamsg.
#                  .findship(): Initialize a few more ship variables.
# 3.44 04Jan84 CAL .Phaser(): Changed into a function and modified to
#                   test spfuse before firing.
#                  .Dophase(), dolastphase(): Modify to use new phaser().
# 3.43 01Jan84 CAL .Robot(): Untractor if not at war and change minimum
#                   detonate range in an attempt to detonate more torps.
#                  .Newrob(): Always turn on intruder alerts.
#                  .Secdrive(), display(): Use negative values in ssdfuse
#                   to indicate dead timeout but don't display them.
#                  .Ikill(): Ssdfuse hacking and set ship war when setting
#                   sticky war.
# 3.42 31Dec83 CAL .Robot(): The strategy improves; add code to detonate.
#                  .Enemydet(): New routine to detenote enemy torpedos.
#                  .Dodet(): Modified to use enemydet().
#                  .Doinfo(): Fixed bug with finding second nearest thing.
# 3.41 30Dec83 CAL .Robot(): Added first basic strategy.
#              &&  .Phaser(), launch(): Turn off ship repair mode.
#              JP  .Dophase(), dotorp(), doburst(): Don't worry about ship
#                   repair mode.
#                  .Findspecial(): New routine that finds things.
#                  .Special(): Moved thing-finding code to findspecial().
#                  .Docourse(), doinfo(): Modified to use findspecial()
#                   and special().
#                  .Cloak(): New routine to engage the cloaking device.
#                  .Docloak(): Moved cloaking code into cloak():
#                  .Secdrive(): Use ssdfuse to timeout dead ships. Always
#                   turn off dead robot ships.
#                  .Ikill(), dead(): Use ssdfuse to timeout dead ships.
# 3.40 27Dec83 CAL .Newrob(): Added code to check for multiple rules and
#                   turn on and place ship on if successful.
#                  .Oprobot(): New routine used to create a robot ship.
#                  .Operate(), opback(): Modified to handle oprobot().
#                  .Newship(): Reordered to prevent possible sstatus race.
#                  .Dead(): Call sleep() at the end of the torpedo delay loop.
# 3.39 25Dec83 CAL .Enlarged srstrat to handle more than one strategy.
#                  .Moved some constants into the common for easier tuning.
#                  .Initship(): Initialize srstrat.
#                  .Canread(): New routine to tell if a message is readable.
#                  .Readmsg(): Changed into a subroutine which simply displays
#                   a message and modified to use canread().
#                  .Astservice(), review(), operate(), watch(): Modified to
#                   use canread().
# 3.38 24Dec83 CAL .Robot(): New routine to drive robot ships; currently it's
#                   just a nonoperative skeleton. Created src/conqrob.
#                  .Newrob(): New routine to create a robot ship.
#                  .Secdrive(): Modified to call conqrob.
# 3.37 20Dec83 CAL .*(): Changed name of SPEED_FAC to MM_PER_SEC_PER_WARP,
#                   which stands for mega-meters per second per warp.
#                  .Engeff(): New routine to calculate engine efficiency.
#                  .Weaeff(): New routine to calculate weapon efficiency.
#                  .*(): Modified many routines to use engeff() and weaeff().
#                  .Newarp(): Engine efficiency now affects acceleration.
#                  .Iterdrive(): Remove engine allocation factor from distance
#                   traveled calculation. Call acdist() with engine efficiency
#                   factored into acceleration.
#                  .Acdist(): Multiply by MM_PER_SEC_PER_WARP to convert to
#                   distance (mega-meters) and (hopefully) fix the autopilot.
# 3.36 19Dec83 CAL .Iterdrive(): Took fudge factor out of autopilot slow down.
#                  .Debugdisplay(): Added distance to target when locked on.
# 3.35 14Dec83 CAL .Secdrive(): Call usefuel() with decrement only, thus
#                   reintroducing engine temperature based on speed, etc.
#                  .Acdist(): Fixed sign bug that was causing the autopilot
#                   to frequently overshoot the target planet.
# 3.34 10Dec83 JP  .*(): Added new routine usefuel(), changed routines to use
#                   it instead of looking at sfuel.
# 3.33 02Dec83 CAL .Inituniverse(): Initialize the rest of chrplanets().
# 3.32 30Nov83 CAL .Play(): Update claststat for every conqstat() call.
# 3.31 29Nov83 CAL .Initgame(): Zero drivsecs.
#                  .Takeplanet(): Reverse (i.e. correct) sense of common
#                   block locking for call to initgame().
#                  .Newship(): Remember scloaked when reincarnating.
#                  .Operate(): Add the GOD info command
#                  .Display(): Fixed bounds test for course when locked on.
# 3.30 17Nov83 CAL .Operate(): Remove a bunch of stuff.
#                  .Opstat(): Add a bunch of stuff.
#                  .Lowered base phaser hit to 92.0.
#                  .*(): Corrected random spelling errors.
#                  .Sendmsg(): Fixed string bug when sending team messages.
#                  .Dooption(): Add an argument (and make choption obsolete).
#                   Fix bugs with changing options.
#                  .Choption(): Removed.
#                  .Menu(): Modified to use dooption().
#                  .Play(): Pass new arguments to dooption().
# 3.29 16Nov83 CAL .Conqstat(): Fixed stupid bug with team elapsed time.
# 3.28 14Nov83 CAL .Docourse(): Fixed race when locking on by setting up the
#                   shead() before slock().
#                  .Display(): Check bounds of the planet number when displaying
#                   heading.
#                  .Conqstat(): New routine to handle incremental additions
#                   to the elapsed and cpu time statistics.
#                  .Play(), conqend(): Modified to use conqstat().
#                  .Uedit(): Look for zero length usernames, but don't allow
#                   changing a username to a zero length.
#                  .Options(): Don't change extra options.
# 3.27 13Nov83 CAL .*(): Moved team and user stats into a common array.
#                  .Pagefile(): Added parameters and features for the tutorial.
#                  .Infoplanet(): Report uninhabitable and coup time.
#                  .Doinfo(), conqinit(): Keep track of last info string.
#                  .Zeroeverything(): New routine to zero the common block.
#                  .Initeverything(): Modified to use zeroeverything().
#                  .Comsize(): New routine to return the size of the common
#                   block.
#                  .Opstats(): Output more stuff, including size of common.
#                  .Fmtminutes(): New routine to format a minutes string.
#                  .Userline(): Modified to use fmtminutes() instead of
#                   fmtseconds().
# 3.26 12Nov83 CAL .Initstats(): New routine to initialize the statistics timer.
#                  .Getstats(): New routine to collect statistics.
#                  .Conqinit(): Modified to call initstats().
#                  .Conqend(): Modified to call getstats().
#                  .Drivinit(): New initialization routine for conqdriv.
#                  .Drivend(): New clean up routine for conqdriv.
#                  .Conqdriv(): Modified to call drivinit() and drivend().
#                  .Conqfig: Add string for c_conq_tutorial.
#                  .Menu(): Add tutorial command.
#                  .Conqtut(): New routine to handle the tutorial.
#                  .*(): Added MONDO new statistics.
#                  .Userstats(): New routine to display new user statistics.
#                  .Command(), help(), menu(): Add new user stats command.
#                  .Drpexit(): Don't call upchuck().
#                  .Upchuck(): Lock the common while updating.
#                  .Zeroplanet(): Added snum as an argument.
#                  .Secdrive(): Call zeroplanets() with its new argument. Also,
#                   only send a over-temperature message if the ship survived.
#                  .Dobeam(): Call zeroplanets() with its new argument.
#                  .Initeverything(): Zero the common block with cdfill() first.
#                  .*(): Turned terms() into a define.
#                  .Stillalive(): Needed to check for SS_ENTERING too...
#                  .Opstats(): New routine to display new statistics.
#                  .Fmtseconds(): New routine to format a seconds string.
#                  .Operate(): Use fmtseconds() to display play and drive times.
#                   Remove upchuck command and add command to call opstats().
#                  .Conqds(): Add tutorial and new user stats commands.
# 3.25 11Nov83 CAL .Aston(): New routine to enable asts (replaces a macro).
#                  .Astoff(): New routine to disable asts (replaces a macro).
#                  .Mailimps(): New routine to send a one liner to the
#                   Implimentors using mail().
#                  .Sendmsg(): Modified to use mailimps() instead of mail().
#                  .Isagod(): New routine to determine if a user is a god.
#                  .Conqdriv(), conqoper(), userline(): Modified to use isagod()
#                   to test for gods.
#                  .Iterdrive(): Let "terse" control "insertion" messages too.
# 3.24 10Nov83 CAL .Iterdrive(): Don't send orbiting messages if "terse" is set.
#                  .Command(): Use soption() instead of uoption() to get "terse"
#                   option when sending messages.
#                  .Readmsg(): Use soption() instead of uoption().
#                  .*(): Used f77 to find and remove unused variables.
# 3.23 09Nov83 CAL .*(): Uplaying() is obsolete now; instead, test for sstatus()
#                   being SS_LIVE or SS_ENTERING.
#                  .ikill(): New internal routine to kill a ship. Assumes that
#                   the common block is locked.
#                  .kill(): Now, lock the common, call ikill() and unlock.
#                  .Takeplanet(): Use ikill() and remove need to unlock common.
# 3.22 07Nov83 CAL .Newship(): Use SS_ENTERING in new uplaying logic.
# 3.21 06Nov83 CAL .Conqdriv(): Update the common block every minute. Somehow,
#                   the call in fivemindrive() got misplaced...
# 3.20 03Nov83 CAL .Iterdrive(): Adjust swarp (not sdwarp) when necessary
#                   but call fixdeltas() every time we change warp.
#                  .Secdrive(): Lower sdwarp at over-temperature explosions.
#                   Also, use desired warp when figuring engine temperature.
#                  .Newarp(): Pass desired warp to handle damaged ships.
#                  .*(): Added the integer umultiple to keep track of the
#                   number of ships a multiple is allowed to fly at one time.
#                  .Increased the Doomsday machines firepower.
#                  .Dobomb(): Call drcheck() inside loop.
# 3.19 02Nov83 CAL .Conqinit(), drcheck(): Move static lastime into the common.
# 3.18 01Nov83 CAL .Debugplan(): Don't display uninhabitable time if zero.
#                  .Newarp(): New (linear) acceleration formula, also change
#                   for use in iterdrive().
#                  .Acdist(): New routine to figure distance traveled during
#                   changes in velocities.
#                  .Iterdrive(): Moved out ship acceleration code.
#                  .Secdrive(): Moved in ship acceleration code. Modified
#                   autopilot code to handle new acceleration formula.
#                  .Increased length of the Doomsday machine.
# 3.17 30Oct83 CAL .Dowarp(): Don't stop repairing when changing to warp 0.
# 3.16 24Oct83 CAL .Drcreate(): Added the variable drivuniq to make the
#                   driver name even more unique.
#                  .Initgame(), inituniverse(): Moved the driver initialization
#                   code out of initgame() and added initialization of drivuniq.
# 3.15 23Oct83 CAL .*(): Added a buffer to conqco and modified many routines
#                   to use it instead of their own private buffer.
#                  .Welcome(): Moved out initialization code to menu().
#                  .Menu(): Modified to do minor ship initialization. Now
#                   checks to make sure the ship is reserved and tries to
#                   reserve a new ship if possible. Modified to watch for
#                   the closed flag and update the display if it changes.
#                  .Inituniverse(): New acceleration constants.
#                  .Newarp(): New acceleration constants and formula.
#                  .Infoship(): Print out pseudonym in new two line format.
#                  .Infoplanet(): Minor format changes to be like infoship().
#                  .Review(): Modified to clear the bottom line for each
#                   messages to force a redraw of the more prompt every time.
#                  .Dead(): Modified to use iotget() and stillalive().
#                  .Doreview(): Modified to use iotget() and stillalive().
# 3.14 22Oct83 CAL .Increased MAXMESSAGES.
#                  .Subang(): New routine to subtract two angles.
#                  .Readmsg(): New message type; now you can get messages
#                   from your ship's computer. Also Modified to clear the
#                   second messages line.
#                  .Iterdrive(): Fixed the tow bug, now the angle to towed
#                   ships changes slowly. Rehacked direction changing code.
#                   Implemented planet approach autopilot. Added orbit speed
#                   limit.
#                  .Secdrive(): Added a message from Comp when engines overheat.
#                  .*(): Personalized many ship messages.
#                  .Doorbit(): Added orbit speed limit.
#                  .Findorbit(): New routine to locate a planet for a ship
#                   to orbit.
#                  .Orbit(): Modified not look for a planet, but simply do
#                   the work of placing a ship into orbit. Hacked to prevent
#                   orbit jumping.
#                  .Display(): Display warp to one decimal place.
# 3.13 21Oct83 CAL .Bigbang(): New operator routine that fires torps from all
#                   ships.
#                  .Opback(), operate(): Modified to know about bigbang().
#                  .Watch(): Call cdredo() in a few places.
#                  .Pagefile(): Changed usage of pathopen() to open().
# 3.12 20Oct83 CAL .Drcreate(): Use cpriority when creating the driver process.
#                  .Changed driver iteration to one tenth of a second.
# 3.11 19Oct83 CAL .*(): Added a seperate lockword for messages.
#                  .Putship(): Change retry limit to 20 and expand entry
#                   area as we approach this limit.
#                  .Drstart(), drcheck(): More driver logic hacking.
#                  .Drcreate(): Driver logic hacking. Also, make the driver
#                   name unique to avoid duplicate process names.
#                  .Conqdriv(): Don't call upchuck() unless the players have
#                   timed out to shorten the time it takes the driver to exit.
#                  .Mail(): Use integer*2 to get at bottom short word of pid.
#                  .Readmsg(): Don't force a clear line.
# 3.10 18Oct83 CAL .Dead(): Unset sticky war to prevent problems in menu().
#                  .Welcome(): Unset sticky war to prevent problems in menu().
# 3.09 16Oct83 CAL .Dosubdcl(): Wasn't saving ccabort in the proper place.
#                  .Capentry(): Modified to use iotget() and stillalive().
#                  .Dooption(): Modified to use iotget() and stillalive().
#                  .Choption(): Modified to use iotget() and stillalive().
#                  .Dobeam(): Modified to use iotget().
#                  .Conqdriv(), initgame(): Added drivowner to keep track
#                   of the username of the drivers owner.
#                  .Operate(): Display drivowner and the Doomsday target.
#                  .Putship(): New routine to randomly position a ship; care
#                   is taken to prevent entering too closely to an enemy.
#                  .Newship(): Modified to use putship(). Also, start out
#                   with swarp equal to 0.0 instead of sdwarp.
#                  .Drcreate(): Can't call cerror(); instead, return a status.
#                  .Drcheck(): Modified to check status from drcreate().
#                  .Drstart(): Modified to check status from drcreate().
# 3.08 15Oct83 CAL .Newarp(): New skeleton routine for ship acceleration.
#                  .Secdrive(): Modified to use newarp().
#                  .Dowar(): Modified outer while loop to use stillalive()
#                   and iotget() instead of ioget(). Also modified to allow
#                   use from menu() by not delaying if the ship is reserved.
#                  .Menu(): Added code to call dowar() to change war and peace.
#                  .Conqds(): Display command to change war and peace.
# 3.07 13Oct83 CAL .Dohelp(): New argument subdcl makes the inclusion of
#                   "conqco.c" unnecessary. Corrected iotget() loop logic.
#                  .Command(): Pass new argument to dohelp().
#                  .Welcome(): New arguments snum and unum make the inclusion
#                   of "conqco.c" unnecessary.
#                  .Menu(): Pass new arguments to welcome(). Restored test
#                   of cleave to end of loop.
#                  .Stillalive(): Needed to use suser(snum) instead of
#                   steam(snum) in a couple places. Modified logic to
#                   handle both live and reserved ships.
#                  .Doteamlist(), doplanlist(), doplaylist(): Modified to not
#                   check if the ship is reserved since stillalive() does now.
#                  .Mail(): Always make up the mailbox name since we need
#                   two versions of the string for different sys calls.
#                  .Drcreate(): Only update childpid if we were successful in
#                   creating the process; consider ss$_dupnam an error now.
#                  .Special(): Now, "na" behaves like "na1".
# 3.06 12Oct83 CAL .Capentry(): General code hacking.
#                  .Dead(): Modified to report funny killed by numbers to GOD.
#                   Ratp1 now allows single quotes as the first character in a
#                   string.
#                  .Dobeam(), dobomb, play(): Modified to use stillalive().
#                  .Putpmt(): New routine to display prompts.
#                  .More(), dohelp(), doteamlist(), doplanlist(), doplaylist(),
#                   opteamlist(), opplanlist(), opplaylist(): Modified to
#                   use putpmt().
#                  .Command(): Was (mistakenly) using csnum instead of cunum.
# 3.05 11Oct83 CAL .Mail(): Recoded to use a mailbox instead of a scratch file.
#                  .Conqinit(): Lengthened jpilist() to make sys$getjpi() happy.
#                  .More(): Modified to clear the line before prompting.
#                  .Stillalive(): New routine to determine if a ship is alive.
#                  .Doreview(): New routine to handle player message reviews.
#                  .Command(): Modified to use stillalive() and doreview().
#                  .Menu(): Corrected end test in repeat-until loop. Modified
#                   to use doreview().
#                  .Dohelp(): Renamed from help(). Modified to use stillalive().
#                  .Astservice(), doselfdest(), docoup(), dowar(): Modified
#                   to use stillalive().
#                  .Gettarget(): Renamed from cdgtarget().
#                  .Options(): Changed strings to inline.
#                  .Teamlist(): Modified to display one team list per call.
#                  .Doteamlist(): New routine to display a player team list.
#                  .Opteamlist(): New routine to display an operator team list.
#                  .Planlist(): Modified to display one planet list per call.
#                  .Doplanlist(): New routine to display a player team list.
#                  .Opplanlist(): New routine to display an operator team list.
#                  .Playlist(): Modified to display one player list per call.
#                  .Doplaylist(): New routine to display a player list.
#                  .Opplaylist(): New routine to display an operator list.
# 3.04 06Oct83 CAL .*(): Removed shell spawning capability. Removed define
#                   for NOIMPLICIT since it is defined by "incl/ratdef" now.
# 3.03 04Oct83 CAL .*(): Reorganized routines, thus creating "src/conqvms".
#                  .Conqinit(): New machine dependent initialization routine.
#                  .Conqend(): New machine dependent clean-up routine.
#                  .Conquest(): Modified to use conqinit() and conqend().
#                  .Doshell(): Modified to raise priority during dospwn().
#                  .Dosubdcl(): Modified to raise priority during lib$spawn().
# 3.02 02Oct83 CAL .*(): Changed swarp and sdwarp to reals.
#                  .Command(): Don't redraw the screen if we're no longer alive.
#                  .Sortplanets(): Changed usages of cmpnames() to strcmp().
#                  .Cmpnames(): Removed unused routine.
#                  .Dead(): Reworked torpedo delay logic and increased the
#                   maximum torpedo delay to 5 seconds.
#                  .Sendmsg(): Added an argument for terseness and removed usage
#                   of terse(). Also modified all calls to sendmsg().
#                  .Terse(): Removed unused routine.
#                  .More(): For some (unknown) reason, there were two versions
#                   of this routine. The extra one was removed.
#                  .Play(): Clear the display before calling display().
# 3.01 01Oct83 CAL .Conqdriv(): Reordered driver logic to do "big" things first.
#                  .Newship(): Fixed bug with ship teams when reincarnating.
#                  .Dowarp(): Setting warp 0 when not moving no longer costs
#                   fuel.
#                  .Dobeam(): Default for beaming (when there is a choice) is
#                   down. Also, fixed mistakes in self-war logic.
# 3.00 18Sep83 CAL .Version number boost for the Decus distribution.
#                  .Started detailed revision history.
#
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