Provided by: chocolate-doom_1.6.0-1_amd64 bug

NAME

       chocolate-doom - historically compatible doom engine

SYNOPSIS

       chocolate-doom [OPTIONS]

DESCRIPTION

       Chocolate  Doom is a modern doom engine designed to behave as similar to the original doom
       game as is possible.

GENERAL OPTIONS

       -cdrom [windows only] Save configuration data and savegames in c:\doomdata, allowing  play
              from CD.

       -config <file>
              Load configuration from the specified file, instead of default.cfg.

       -devparm
              Developer mode.  F1 saves a screenshot in the current working directory.

       -episode <n>
              Start playing on episode n (1-4)

       -extraconfig <file>
              Load extra configuration from the specified file, instead of chocolate-doom.cfg.

       -fast  Monsters move faster.

       -file <files>
              Load the specified PWAD files.

       -iwad <file>
              Specify an IWAD file to use.

       -loadgame <s>
              Load the game in slot s.

       -mb <mb>
              Specify the heap size, in MiB (default 16).

       -mmap  Use the OS's virtual memory subsystem to map WAD files directly into memory.

       -noblit
              Disable blitting the screen.

       -nodraw
              Disable rendering the screen entirely.

       -nomonsters
              Disable monsters.

       -nomusic
              Disable music.

       -nosfx Disable sound effects.

       -nosound
              Disable all sound output.

       -respawn
              Monsters respawn after being killed.

       -servername <name>
              When starting a network server, specify a name for the server.

       -skill <skill>
              Set  the  game  skill,  1-5  (1:  easiest,  5: hardest).  A skill of 0 disables all
              monsters.

       -turbo <x>
              Turbo mode.  The player's speed is multiplied by x%.  If unspecified, x defaults to
              200.  Values are rounded up to 10 and down to 400.

       -warp [<x> <y> | <xy>]
              Start a game immediately, warping to ExMy (Doom 1) or MAPxy (Doom 2)

COMPATIBILITY

       -donut <x> <y>
              Use  the  specified  magic values when emulating behavior caused by memory overruns
              from improperly constructed donuts. In Vanilla Doom this can  differ  depending  on
              the  operating system.  The default (if this option is not specified) is to emulate
              the behavior when running under Windows 98.

       -gameversion <version>
              Emulate a specific version of Doom.  Valid values are "1.9",  "ultimate",  "final",
              "final2", "hacx" and "chex".

       -setmem <version>
              Specify  DOS  version to emulate for NULL pointer dereference emulation.  Supported
              versions are: dos622, dos71, dosbox. The default is to  emulate  DOS  7.1  (Windows
              98).

       -spechit <n>
              Use the specified magic value when emulating spechit overruns.

DEMO OPTIONS

       -longtics
              Record a high resolution "Doom 1.91" demo.

       -maxdemo <size>
              Specify the demo buffer size (KiB)

       -playdemo <demo>
              Play back the demo named demo.lmp.

       -record <x>
              Record a demo named x.lmp.

       -timedemo <demo>
              Play back the demo named demo.lmp, determining the framerate of the screen.

DISPLAY OPTIONS

       -1     Don't scale up the screen.

       -2     Double up the screen to 2x its normal size.

       -3     Double up the screen to 3x its normal size.

       -8in32 Set the color depth of the screen to 32 bits per pixel.

       -bpp <bpp>
              Specify the color depth of the screen, in bits per pixel.

       -fullscreen
              Run in fullscreen mode.

       -gdi   [windows only] Use the Windows GDI driver instead of DirectX.

       -geometry <WxY>
              Specify  the  screen  mode (when running fullscreen) or the window dimensions (when
              running in windowed mode).

       -grabmouse
              Grab the mouse when running in windowed mode.

       -height <y>
              Specify the screen height, in pixels.

       -nograbmouse
              Don't grab the mouse when running in windowed mode.

       -nomouse
              Disable the mouse.

       -nonovert
              Enable vertical mouse movement.

       -novert
              Disable vertical mouse movement.

       -width <x>
              Specify the screen width, in pixels.

       -window
              Run in a window.

NETWORKING OPTIONS

       -altdeath
              Start a deathmatch 2.0 game.  Weapons do not stay in place and  all  items  respawn
              after 30 seconds.

       -autojoin
              Automatically search the local LAN for a multiplayer server and join it.

       -avg   Austin Virtual Gaming: end levels after 20 minutes.

       -connect <address>
              Connect to a multiplayer server running on the given address.

       -deathmatch
              Start a deathmatch game.

       -dedicated
              Start a dedicated server, routing packets but not participating in the game itself.

       -dup <n>
              Reduce  the resolution of the game by a factor of n, reducing the amount of network
              bandwidth needed.

       -extratics <n>
              Send n extra tics in every packet as insurance against dropped packets.

       -ignoreversion
              When running a netgame server, ignore version mismatches between the server and the
              client.  Using  this  option  may  cause  game  desyncs to occur, or differences in
              protocol may mean the netgame will simply not function at all.

       -left  Run as the left screen in three screen mode.

       -localsearch
              Search the local LAN for running servers.

       -oldsync
              Use original game sync code.

       -port <n>
              Use the specified UDP port for communications, instead of the default (2342).

       -privateserver
              When running a server, don't  register  with  the  global  master  server.  Implies
              -server.

       -query <address>
              Query the status of the server running on the given IP address.

       -right Run as the right screen in three screen mode.

       -search
              Query the Internet master server for a global list of active servers.

       -server
              Start a multiplayer server, listening for connections.

       -solo-net
              Start  the game playing as though in a netgame with a single player.  This can also
              be used to play back single player netgame demos.

       -timer <n>
              For multiplayer games: exit each level after n minutes.

DEHACKED AND WAD MERGING

       -aa <files>
              Equivalent to "-af <files> -as <files>".

       -af <files>
              Simulates the behavior of NWT's -af  option,  merging  flats  into  the  main  IWAD
              directory.  Multiple files may be specified.

       -as <files>
              Simulates  the  behavior  of  NWT's  -as option, merging sprites into the main IWAD
              directory.  Multiple files may be specified.

       -deh <files>
              Load the given dehacked patch(es)

       -merge <files>
              Simulates the behavior of deutex's -merge option, merging  a  PWAD  into  the  main
              IWAD.  Multiple files may be specified.

       -nocheats
              Ignore cheats in dehacked files.

       -nwtmerge <files>
              Simulates the behavior of NWT's -merge option.  Multiple files may be specified.

ENVIRONMENT

       This section describes environment variables that control Chocolate Doom's behavior.

       DOOMWADDIR, DOOMWADPATH
              These  environment  variables  provide  paths  to  search  for Doom .WAD files when
              looking for a game IWAD file or a PWAD file  specified  with  the  `-file'  option.
              DOOMWADDIR  specifies  a  single  path  in  which  to  look  for  WAD  files, while
              DOOMWWADPATH specifies a colon-separated list of paths to search.

       PCSOUND_DRIVER
              When running in PC speaker sound effect mode, this environment variable specifies a
              PC  speaker driver to use for sound effect playback.  Valid options are "Linux" for
              the Linux console mode driver, "BSD" for the NetBSD/OpenBSD PC speaker driver,  and
              "SDL" for SDL-based emulated PC speaker playback (using the digital output).

       OPL_DRIVER
              When  using  OPL  MIDI playback, this environment variable specifies an OPL backend
              driver to use.  Valid options are "SDL" for  an  SDL-based  software  emulated  OPL
              chip,   "Linux"   for  the  Linux  hardware  OPL  driver,  and  "OpenBSD"  for  the
              OpenBSD/NetBSD hardware OPL driver.

              Generally speaking, a real hardware OPL chip sounds better than software emulation;
              however,  modern  machines  do  not  often  include  one.  If present, it may still
              require extra work to set up and elevated security privileges to access.

FILES

       $HOME/.chocolate-doom/default.cfg
              The main configuration file for Chocolate Doom.  See default.cfg(5).

       $HOME/.chocolate-doom/chocolate-doom.cfg
              Extra configuration values that are specific to Chocolate Doom and not  present  in
              Vanilla Doom.  See chocolate-doom.cfg(5).

SEE ALSO

       chocolate-server(6), chocolate-setup(6)

AUTHOR

       Chocolate  Doom  is  written and maintained by Simon Howard.  It is based on the LinuxDoom
       source code, released by Id Software.

COPYRIGHT

       Copyright © id Software Inc.  Copyright © 2005-8 Simon Howard.
       This is free software.  You may redistribute copies of it  under  the  terms  of  the  GNU
       General  Public  License <http://www.gnu.org/licenses/gpl.html>.  There is NO WARRANTY, to
       the extent permitted by law.

                                                                                chocolate-doom(6)