CPP Doom

CPP Doom is fork and a conversion of Crispy Doom writen in C to C++23 or later. This is a "PET" project and may be removed or deleted at anytime. The idea is to learn how to refactor C code into modern C++ and try to use C++23 features and eventualy latter C++ stadards as C++26, etc. MS Windows and Mac OS is no longer supported, currently this is a Linux only build and the extra build complexty will eventualy be removed.

Objectives and features

CPP Doom is a source port that aims to provide a learning experence in C++ and reworking a larg-ish codebase.

Its core goals are:

• Convert all games and setup utility to C++ that has no Error's or warnings.
• The games with orginal WAD files should play as Orginaly intended NOT including bugs.
• Rework all memory unsafe code.

New controls (with default bindings)

• Move Forward (alt.) W
• Move Backward (alt.) S
• Strafe Left (alt.) A
• Strafe Right (alt.) D
• Jump (bindable to joystick and mouse buttons as well) / (as in Hexen and Strife)
• Quick Reverse (bindable to mouse buttons as well)
• Mouse Look (bindable to mouse buttons or permanent)
• Look up (bindable to joystick axes as well) PgDn (as in Heretic)
• Look down (bindable to joystick axes as well) Del (as in Heretic)
• Center view End (as in Heretic)
• Toggle always run ⇪
• Toggle vertical mouse movement (new in 5.4)
• Delete savegame Del
• Go to next level
• Reload current level
• Save a clean screenshot
• Toggle Automap overlay mode O
• Toggle Automap rotate mode R
• Resurrect from savegame (single player mode only) "Run" + "Use"

Command line parameters

• -dm3 specifies the Deathmatch 3.0 rules (weapons stay, items respawn) for netgames (since 4.1).
• -episode 1 launches Hell on Earth and -episode 2 launches No Rest for the Living episode if the Doom 2 IWAD shipped with the Doom 3: BFG Edition is used.
• -warp 1a warps to the secret level E1M10: Sewers of XBox Doom IWAD (since 2.3).
• -mergedump <file> merges the PWAD file(s) given on the command line with the IWAD file and writes the resulting data into the <file> given as argument. May be considered as a replacement for the DEUSF.EXE tool (since 2.3).
• -lumpdump dumps raw content of a lump into a file (since 5.7).
• -blockmap forces a (re-)building of the BLOCKMAP lumps for loaded maps (since 2.3).
• -playdemo demoname -warp N plays back fast-forward up to the requested map (since 3.0).
• -loadgame N -record demoname and -loadgame N -playdemo demoname allow to record and play demos starting from a savegame instead of the level start (since 4.0).
• -playdemo demoname1 -record demoname2 plays back fast-forward until the end of demoname1 and continues recording as demoname2 (new in 5.5).
• -fliplevels loads mirrored versions of the maps (this was the default on April 1st up to version 5.0).
• -flipweapons flips the player's weapons (new in 5.3).

New cheat codes

• TNTWEAP followed by a weapon number gives or removes this weapon (8 = Chainsaw, 9 = SSG). TNTWEAP0 takes away all weapons and ammo except for the pistol and 50 bullets. Try to load Doom 1 with DOOM2.WAD as a PWAD and type TNTWEAP9 to play the SSG in Doom 1.
• TNTEM, KILLEM or FHHALL kill all monsters on the current map (and disables all cube spitters).
• SPECHITS triggers all Linedef actions on a map at once, no matter if they are enabled by pushing, walking over or shooting or whether they require a key or not. It also triggers all boss monster and Commander Keen actions if possible.
• NOTARGET or FHSHH toggle deaf and blind monsters that do not act until attacked.
• TNTHOM toggles the flashing HOM indicator (disabled by default).
• SHOWFPS or IDRATE toggle printing the FPS in the upper right corner.
• NOMOMENTUM toggles a debug aid for pixel-perfect positioning on a map (not recommended to use in-game).
• GOOBERS triggers an easter egg, i.e. an "homage to an old friend". ;-)
• IDBEHOLD0 disables all currently active power-ups (since 2.2).
• IDCLEV00 restarts the current level (since 2.0).
• IDMUS00 restarts the current music (new in 5.1).
• VERSION shows the engine version, build date and SDL version (new in 5.1).
• SKILL shows the current skill level (new in 5.5.2).

Download

CPP-Doom compiled binary's are currently not provided.

Sources

It can be downloaded in either ZIP or TAR.GZ format or cloned via

 git clone https://github.com/CoryM/cpp-doom.git

Compilation on nix systems should be as simple as

 nix-shell
 cd build
 cmake -S .. -G Ninja
 ninja 

After successful compilation the resulting binaries can be found in the build/src/ directory.

Legalese

Doom is © 1993-1996 Id Software, Inc.; Boom 2.02 is © 1999 id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman; PrBoom+ is © 1999 id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman, © 1999-2000 Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze, © 2005-2006 Florian Schulze, Colin Phipps, Neil Stevens, Andrey Budko; Chocolate Doom is © 1993-1996 Id Software, Inc., © 2005 Simon Howard; Chocolate Hexen is © 1993-1996 Id Software, Inc., © 1993-2008 Raven Software, © 2008 Simon Howard; Strawberry Doom is © 1993-1996 Id Software, Inc., © 2005 Simon Howard, © 2008-2010 GhostlyDeath; Crispy Doom is additionally © 2014-2019 Fabian Greffrath; all of the above are released under the GPL-2+.

SDL 2.0, SDL_mixer 2.0 and SDL_net 2.0 are © 1997-2016 Sam Lantinga and are released under the zlib license.

Secret Rabbit Code (libsamplerate) is © 2002-2011 Erik de Castro Lopo and is released under the GPL-2+. Libpng is © 1998-2014 Glenn Randers-Pehrson, © 1996-1997 Andreas Dilger, © 1995-1996 Guy Eric Schalnat, Group 42, Inc. and is released under the libpng license. Zlib is © 1995-2013 Jean-loup Gailly and Mark Adler and is released under the zlib license.

The Crispy Doom icon (as shown at the top of this page) is composed of the Chocolate Doom icon and a photo of potato crisps (Utz-brand, grandma's kettle-cooked style) by Evan-Amos who kindly released it into the public domain. The current high-resolution version of this icon has been contributed by JNechaevsky (formerly by Zodomaniac).