This project is a fork of ioquake3 with OpenArena specific changes to the client and server.
This a standard ioquake3 build which they describe here
It's not an autotools based build. If you don't have the dependencies, it will break in the middle of the build.
If you are on Ubuntu or Debian, the easiest way to compile this is to install the build dependencies for the "ioquake3" package.
$ sudo aptitude build-dep ioquake3 $ sudo apt-get install libsdl1.2-dev libxmp-dev $ git clone git://github.com/OpenArena/engine.git $ cd engine $ make
You may want to change a few things in Makefile.local. Other than installing the build dependencies, you shouldn't need to do anything else. By default it builds a modular renderer so you need the binary + *.so or *.dll files in the same directory to run it.
# Get this project or sign up on github and fork it $ git clone git://github.com/OpenArena/engine.git $ cd engine # Create a reference to the upstream project $ git remote add upstream git://github.com/ioquake/ioq3.git # View changes in this project compared to ioquake3 $ git fetch upstream $ git diff upstream/master
Recent ioquake3 versions allow for a modular renderer. This allows you to select the renderer at runtime rather than compiling in one into the binary.
This feature is enabled by default. If you wish to disable it, uncomment USE_RENDERER_DLOPEN=0 in Makefile.local. With ioquake3, this embeds the opengl1 renderer. In OpenArena, it embeds the openarena1 renderer.
When you start OpenArena, you can pass the name of the dynamic library to load. ioquake3 assumes a naming convention renderer_*_.
# Enable the default OpenArena renderer with GLSL, bloom support and more. # This is based on the renderergl1 code. $ ./openarena.x86_64 +set cl_renderer openarena1 # Enable the default ioquake3 renderer (renderergl1). # If you are having trouble with OA's renderer, this is a safe alternative. $ ./openarena.x86_64 +set cl_renderer opengl1 # Enable renderergl2 which is now in upstream # It doesn't work with OpenArena yet $ ./openarena.x86_64 +set cl_renderer opengl2
- Wait for ioquake3 to add/reject vorbis so we can fix Windows builds
- Cross compiling on Windows works in experimental/latest-libraries branch
- Wait for ioquake3 to add/reject latest curl
- Required to fix build problems on Windows for some users
- Also in the experimental/latest-libraries branch
- Verify that allowing say/say_team to bypass Cmd_Args_Sanitize is safe.
- Try to avoid changing qcommon area to support GLSL. Canete's renderergl2 didn't need this change so this renderer shouldn't either.
- Build in FreeBSD and Mac OS X
- Remove compiler warnings. I kept them in for now so the code would be as close as possible to 0.8.8.
- Potential GLSL debugging fix that was made available after 0.8.8 release
- Need to find a link to this. Is this real?
- Fix Ogg Vorbis music looping hitching bug.
- Software rendering module based on TinyGL, optimized for performance.
- Direct3D7 rendering module. 7 particularly, for compatibility with more legacy graphics chipsets and underperforming onboard video chipsets without a good OpenGL driver.
- Restore Win9X support (Regressions are in PSAPI and the TCP stack)
- Restore the use of the WGL_3DFX_gamma_control extension
- Initial testing on Debian and Windows
- Need help testing on other platforms
- Need help testing the SDL2 branch since ioquake3 is moving to SDL2
- sdl2 branch is considered finished in ioquake3 so it is a good base
- See experimental/latest-libraries-sdl2 branch in this repository to test with OpenArena.
Changes from 0.8.8 release
- Sync with upstream so openarena.i386 uses the OA 0.8.8 renderer, openarena_opengl2.i386 uses Canete's opengl2 and openarena_opengl1.i386 uses the default renderer. (plus minor updates).
- OA's renderer is now in renderer_oa and the base ioquake3 renderer is left untouched
- This does not remove the game or cgame files. They are never referenced or built. This makes it easier to keep in sync with upstream. It would also be possible to integrate the OA engine and OA game code at some point in the future.
- Makefile has fewer changes since the recent upstream Makefile makes it easier to support standalone games
- cl_yawspeed and cl_pitchspeed are CVAR_CHEAT instead of removing the variables and using a constant.
- r_aviMotionJpegQuality was left untouched
- Enables STANDALONE so the CD key and authorize server related changes are no longer needed.
- Enables LEGACY_PROTOCOL and sets the version to 71.
- This uses a different GAMENAME_FOR_MASTER than 0.8.8. It also uses the new HEARTBEAT_FOR_MASTER name since the code says to leave it unless you have a good reason.
- Any trivial whitespace changes were left out
- Widescreen horizontal expansion support
- Paletted texturing support, for the few older cards that support the paletted texture extensions (3dfx)
- Many changes to the flares code - sun flares, support for custom flare shaders, a lower quality flare option (huge framerate jump on oa_pvomit), additional lens reflection effects, configurable lens reflection types for dynamic lights, sun or map lights
- Brightness by blended quad, allowing overbrights to work in a window without the need for a fragment shader
- More postprocessing effects, including a multipass shader effect for simulating the looks of a popular 1996 3d card
- Slowness feature to simulate the rough speed of a typical 6th generation computer setup by default (common 1998 computers), potentially useful for content producers looking to optimize their stuff
- Module player for music as an alternative to streams (.mod, .it, .xm and .s3m formats). Uses the libxmp library.
,---------------------------------------. | _ _ ____ | | (_)___ __ _ _ _ __ _| |_____|__ / | | | / _ \/ _` | || / _` | / / -_)|_ \ | | |_\___/\__, |\_,_\__,_|_\_\___|___/ | | |_| | | | `---------- http://ioquake3.org --------'
The intent of this project is to provide a baseline Quake 3 which may be used for further development and baseq3 fun. Some of the major features currently implemented are:
- SDL backend
- OpenAL sound API support (multiple speaker support and better sound quality)
- Full x86_64 support on Linux
- VoIP support, both in-game and external support through Mumble.
- MinGW compilation support on Windows and cross compilation support on Linux
- AVI video capture of demos
- Much improved console autocompletion
- Persistent console history
- Colorized terminal output
- Optional Ogg Vorbis support
- Much improved QVM tools
- Support for various esoteric operating systems
- cl_guid support
- HTTP/FTP download redirection (using cURL)
- Multiuser support on Windows systems (user specific game data is stored in "%APPDATA%\Quake3")
- PNG support
- Many, many bug fixes
The map editor and associated compiling tools are not included. We suggest you use a modern copy from http://icculus.org/gtkradiant/.
The original id software readme that accompanied the Q3 source release has been renamed to id-readme.txt so as to prevent confusion. Please refer to the web-site for updated status.
Compilation and installation
- Change to the directory containing this readme.
- Run 'make'.
- Please refer to the excellent instructions here: http://wiki.ioquake3.org/Building_ioquake3
For Mac OS X, building a Universal Binary
- Install MacOSX SDK packages from XCode. For maximum compatibility, install MacOSX10.4u.sdk and MacOSX10.3.9.sdk, and MacOSX10.2.8.sdk.
- Change to the directory containing this README file.
- Run './make-macosx-ub.sh'
- Copy the resulting ioquake3.app in /build/release-darwin-ub to your /Applications/ioquake3 folder.
Installation, for *nix
- Set the COPYDIR variable in the shell to be where you installed Quake 3 to. By default it will be /usr/local/games/quake3 if you haven't set it. This is the path as used by the original Linux Q3 installer and subsequent point releases.
- Run 'make copyfiles'.
It is also possible to cross compile for Windows under *nix using MinGW. Your distribution may have mingw32 packages available. On debian/Ubuntu, you need to install 'mingw-w64'. Thereafter cross compiling is simply a case running 'PLATFORM=mingw32 ARCH=x86 make' in place of 'make'. ARCH may also be set to x86_64.
The following variables may be set, either on the command line or in Makefile.local:
CFLAGS - use this for custom CFLAGS V - set to show cc command line when building DEFAULT_BASEDIR - extra path to search for baseq3 and such BUILD_SERVER - build the 'ioq3ded' server binary BUILD_CLIENT - build the 'ioquake3' client binary BUILD_BASEGAME - build the 'baseq3' binaries BUILD_MISSIONPACK - build the 'missionpack' binaries BUILD_GAME_SO - build the game shared libraries BUILD_GAME_QVM - build the game qvms BUILD_STANDALONE - build binaries suited for stand-alone games SERVERBIN - rename 'ioq3ded' server binary CLIENTBIN - rename 'ioquake3' client binary BASEGAME - rename 'baseq3' BASEGAME_CFLAGS - custom CFLAGS for basegame MISSIONPACK - rename 'missionpack' MISSIONPACK_CFLAGS - custom CFLAGS for missionpack (default '-DMISSIONPACK') USE_OPENAL - use OpenAL where available USE_OPENAL_DLOPEN - link with OpenAL at runtime USE_CURL - use libcurl for http/ftp download support USE_CURL_DLOPEN - link with libcurl at runtime USE_CODEC_VORBIS - enable Ogg Vorbis support USE_CODEC_OPUS - enable Ogg Opus support USE_MUMBLE - enable Mumble support USE_VOIP - enable built-in VoIP support USE_INTERNAL_SPEEX - build internal speex library instead of dynamically linking against system libspeex USE_FREETYPE - enable FreeType support for rendering fonts USE_INTERNAL_ZLIB - build and link against internal zlib USE_INTERNAL_JPEG - build and link against internal JPEG library USE_INTERNAL_OGG - build and link against internal ogg library USE_INTERNAL_OPUS - build and link against internal opus/opusfile libraries USE_LOCAL_HEADERS - use headers local to ioq3 instead of system ones DEBUG_CFLAGS - C compiler flags to use for building debug version COPYDIR - the target installation directory TEMPDIR - specify user defined directory for temp files
The defaults for these variables differ depending on the target platform.
cl_autoRecordDemo - record a new demo on each map change cl_aviFrameRate - the framerate to use when capturing video cl_aviMotionJpeg - use the mjpeg codec when capturing video cl_guidServerUniq - makes cl_guid unique for each server cl_cURLLib - filename of cURL library to load cl_consoleKeys - space delimited list of key names or characters that toggle the console cl_mouseAccelStyle - Set to 1 for QuakeLive mouse acceleration behaviour, 0 for standard q3 cl_mouseAccelOffset - Tuning the acceleration curve, see below in_joystickUseAnalog - Do not translate joystick axis events to keyboard commands j_forward - Joystick analogue to m_forward, for forward movement speed/direction. j_side - Joystick analogue to m_side, for side movement speed/direction. j_up - Joystick up movement speed/direction. j_pitch - Joystick analogue to m_pitch, for pitch rotation speed/direction. j_yaw - Joystick analogue to m_yaw, for yaw rotation speed/direction. j_forward_axis - Selects which joystick axis controls forward/back. j_side_axis - Selects which joystick axis controls left/right. j_up_axis - Selects which joystick axis controls up/down. j_pitch_axis - Selects which joystick axis controls pitch. j_yaw_axis - Selects which joystick axis controls yaw. s_useOpenAL - use the OpenAL sound backend if available s_alPrecache - cache OpenAL sounds before use s_alGain - the value of AL_GAIN for each source s_alSources - the total number of sources (memory) to allocate s_alDopplerFactor - the value passed to alDopplerFactor s_alDopplerSpeed - the value passed to alDopplerVelocity s_alMinDistance - the value of AL_REFERENCE_DISTANCE for each source s_alMaxDistance - the maximum distance before sounds start to become inaudible. s_alRolloff - the value of AL_ROLLOFF_FACTOR for each source s_alGraceDistance - after having passed MaxDistance, length until sounds are completely inaudible s_alDriver - which OpenAL library to use s_alDevice - which OpenAL device to use s_alAvailableDevices - list of available OpenAL devices s_alInputDevice - which OpenAL input device to use s_alAvailableInputDevices - list of available OpenAL input devices s_sdlBits - SDL bit resolution s_sdlSpeed - SDL sample rate s_sdlChannels - SDL number of channels s_sdlDevSamps - SDL DMA buffer size override s_sdlMixSamps - SDL mix buffer size override s_backend - read only, indicates the current sound backend s_muteWhenMinimized - mute sound when minimized s_muteWhenUnfocused - mute sound when window is unfocused sv_dlRate - bandwidth allotted to PK3 file downloads via UDP, in kbyte/s com_ansiColor - enable use of ANSI escape codes in the tty com_altivec - enable use of altivec on PowerPC systems com_standalone (read only) - If set to 1, quake3 is running in standalone mode com_basegame - Use a different base than baseq3. If no original Quake3 or TeamArena pak files are found, this will enable running in standalone mode com_homepath - Specify name that is to be appended to the home path com_legacyprotocol - Specify protocol version number for legacy Quake3 1.32c protocol, see "Network protocols" section below (startup only) com_maxfpsUnfocused - Maximum frames per second when unfocused com_maxfpsMinimized - Maximum frames per second when minimized com_busyWait - Will use a busy loop to wait for rendering next frame when set to non-zero value com_pipefile - Specify filename to create a named pipe through which other processes can control the server while it is running. Nonfunctional on Windows. com_gamename - Gamename sent to master server in getservers[Ext] query and infoResponse "gamename" infostring value. Also used for filtering local network games. com_protocol - Specify protocol version number for current ioquake3 protocol, see "Network protocols" section below (startup only) in_joystickNo - select which joystick to use in_availableJoysticks - list of available Joysticks in_keyboardDebug - print keyboard debug info sv_dlURL - the base of the HTTP or FTP site that holds custom pk3 files for your server sv_banFile - Name of the file that is used for storing the server bans net_ip6 - IPv6 address to bind to net_port6 - port to bind to using the ipv6 address net_enabled - enable networking, bitmask. Add up number for option to enable it: enable ipv4 networking: 1 enable ipv6 networking: 2 prioritise ipv6 over ipv4: 4 disable multicast support: 8 net_mcast6addr - multicast address to use for scanning for ipv6 servers on the local network net_mcastiface - outgoing interface to use for scan r_allowResize - make window resizable (SDL only) r_ext_texture_filter_anisotropic - anisotropic texture filtering r_zProj - distance of observer camera to projection plane in quake3 standard units r_greyscale - desaturate textures, useful for anaglyph, supports values in the range of 0 to 1 r_stereoEnabled - enable stereo rendering for techniques like shutter glasses (untested) r_anaglyphMode - Enable rendering of anaglyph images red-cyan glasses: 1 red-blue: 2 red-green: 3 green-magenta: 4 To swap the colors for left and right eye just add 4 to the value for the wanted color combination. For red-blue and red-green you probably want to enable r_greyscale r_stereoSeparation - Control eye separation. Resulting separation is r_zProj divided by this value in quake3 standard units. See also http://wiki.ioquake3.org/Stereo_Rendering for more information r_marksOnTriangleMeshes - Support impact marks on md3 models, MOD developers should increase the mark triangle limits in cg_marks.c if they intend to use this. r_sdlDriver - read only, indicates the SDL driver backend being used r_noborder - Remove window decoration from window managers, like borders and titlebar. r_screenshotJpegQuality - Controls quality of jpeg screenshots captured using screenshotJPEG r_aviMotionJpegQuality - Controls quality of video capture when cl_aviMotionJpeg is enabled r_mode -2 - This new video mode automatically uses the desktop resolution.
video [filename] - start video capture (use with demo command) stopvideo - stop video capture stopmusic - stop background music minimize - Minimize the game and show desktop togglemenu - causes escape key event for opening/closing menu, or going to a previous menu. works in binds, even in UI print - print out the contents of a cvar unset - unset a user created cvar banaddr <range> - ban an ip address range from joining a game on this server, valid <range> is either playernum or CIDR notation address range. exceptaddr <range> - exempt an ip address range from a ban. bandel <range> - delete ban (either range or ban number) exceptdel <range> - delete exception (either range or exception number) listbans - list all currently active bans and exceptions rehashbans - reload the banlist from serverbans.dat flushbans - delete all bans net_restart - restart network subsystem to change latched settings game_restart <fs_game> - Switch to another mod which <filename/path> - print out the path on disk to a loaded item execq <filename> - quiet exec command, doesn't print "execing file.cfg" kicknum <client number> - kick a client by number, same as clientkick command kickall - kick all clients, similar to "kick all" (but kicks everyone even if someone is named "all") kickbots - kick all bots, similar to "kick allbots" (but kicks all bots even if someone is named "allbots") tell <client num> <msg> - send message to a single client (new to server)
README for Users
Using shared libraries instead of qvm
To force Q3 to use shared libraries instead of qvms run it with the following
+set sv_pure 0 +set vm_cgame 0 +set vm_game 0 +set vm_ui 0
Using Demo Data Files
Copy demoq3/pak0.pk3 from the demo installer to your baseq3 directory. The qvm files in this pak0.pk3 will not work, so you have to use the native shared libraries or qvms from this project. To use the new qvms, they must be put into a pk3 file. A pk3 file is just a zip file, so any compression tool that can create such files will work. The shared libraries should already be in the correct place. Use the instructions above to use them.
Please bear in mind that you will not be able to play online using the demo data, nor is it something that we like to spend much time maintaining or supporting.
Help! Ioquake3 won't give me an fps of X anymore when setting com_maxfps!
Ioquake3 now uses the select() system call to wait for the rendering of the next frame when com_maxfps was hit. This will improve your CPU load considerably in these cases. However, not all systems may support a granularity for its timing functions that is required to perform this waiting correctly. For instance, ioquake3 tells select() to wait 2 milliseconds, but really it can only wait for a multiple of 5ms, i.e. 5, 10, 15, 20... ms. In this case you can always revert back to the old behaviour by setting the cvar com_busyWait to 1.
Using HTTP/FTP Download Support (Server)
You can enable redirected downloads on your server even if it's not an ioquake3 server. You simply need to use the 'sets' command to put the sv_dlURL cvar into your SERVERINFO string and ensure sv_allowDownloads is set to 1
sv_dlURL is the base of the URL that contains your custom .pk3 files
the client will append both fs_game and the filename to the end of
this value. For example, if you have sv_dlURL set to
"http://ioquake3.org", fs_game is
"baseq3", and the client is
"test.pk3", it will attempt to download from the URL
sv_allowDownload's value is now a bitmask made up of the following flags:
- 1 - ENABLE
- 4 - do not use UDP downloads
- 8 - do not ask the client to disconnect when using HTTP/FTP
Server operators who are concerned about potential "leeching" from their
HTTP servers from other ioquake3 servers can make use of the HTTP_REFERER
that ioquake3 sets which is
example, Apache's mod_rewrite can restrict access based on HTTP_REFERER.
On a sidenote, downloading via UDP has been improved and yields higher data rates now. You can configure the maximum bandwidth for UDP downloads via the cvar sv_dlRate. Due to system-specific limits the download rate is capped at about 1 Mbyte/s per client, so curl downloading may still be faster.
Using HTTP/FTP Download Support (Client)
Simply setting cl_allowDownload to 1 will enable HTTP/FTP downloads assuming ioquake3 was compiled with USE_CURL=1 (the default). like sv_allowDownload, cl_allowDownload also uses a bitmask value supporting the following flags:
- 1 - ENABLE
- 2 - do not use HTTP/FTP downloads
- 4 - do not use UDP downloads
When ioquake3 is built with USE_CURL_DLOPEN=1 (default on some platforms), it will use the value of the cvar cl_cURLLib as the filename of the cURL library to dynamically load.
Multiuser Support on Windows systems
On Windows, all user specific files such as autogenerated configuration, demos, videos, screenshots, and autodownloaded pk3s are now saved in a directory specific to the user who is running ioquake3.
On NT-based such as Windows XP, this is usually a directory named:
C:\Documents and Settings\%USERNAME%\Application Data\Quake3\
Windows 95, Windows 98, and Windows ME will use a directory like:
in single-user mode, or:
if multiple logins have been enabled.
In order to access this directory more easily, the installer may create a Shortcut which has its target set to:
This Shortcut would work for all users on the system regardless of the locale settings. Unfortunately, this environment variable is only present on Windows NT based systems.
You can revert to the old single-user behaviour by setting the fs_homepath cvar to the directory where ioquake3 is installed. For example:
ioquake3.exe +set fs_homepath "c:\ioquake3"
Note that this cvar MUST be set as a command line parameter.
SDL Keyboard Differences
ioquake3 clients have different keyboard behaviour compared to the original Quake3 clients.
"Caps Lock" and "Num Lock" can not be used as normal binds since they do not send a KEYUP event until the key is pressed again.
SDL > 1.2.9 does not support disabling dead key recognition. In order to send dead key characters (e.g. ~, ', `, and ^), you must key a Space (or sometimes the same character again) after the character to send it on many international keyboard layouts.
The SDL client supports many more keys than the original Quake3 client. For example the keys: "Windows", "SysReq", "ScrollLock", and "Break". For non-US keyboards, all of the so called "World" keys are now supported as well as F13, F14, F15, and the country-specific mode/meta keys.
On many international layouts the default console toggle keys are also dead keys, meaning that dropping the console potentially results in unintentionally initiating the keying of a dead key. Furthermore SDL 1.2's dead key support is broken by design and Q3 doesn't support non-ASCII text entry, so the chances are you won't get the correct character anyway.
If you use such a keyboard layout, you can set the cvar cl_consoleKeys. This is a space delimited list of key names that will toggle the console. The key names are the usual Q3 names e.g. "~", "`", "c", "BACKSPACE", "PAUSE", "WINDOWS" etc. It's also possible to use ASCII characters, by hexadecimal number. Some example values for cl_consoleKeys:
"~ ` 0x7e 0x60" Toggle on ~ or ` (the default) "WINDOWS" Toggle on the Windows key "c" Toggle on the c key "0x43" Toggle on the C character (Shift-c) "PAUSE F1 PGUP" Toggle on the Pause, F1 or Page Up keys
Note that when you elect a set of console keys or characters, they cannot then be used for binding, nor will they generate characters when entering text. Also, in addition to the nominated console keys, Shift-ESC is hard coded to always toggle the console.
QuakeLive mouse acceleration
(patch and this text written by TTimo from id)
I've been using an experimental mouse acceleration code for a while, and decided to make it available to everyone. Don't be too worried if you don't understand the explanations below, this is mostly intended for advanced players: To enable it, set cl_mouseAccelStyle 1 (0 is the default/legacy behavior)
New style is controlled with 3 cvars:
sensitivity cl_mouseAccel cl_mouseAccelOffset
The old code (cl_mouseAccelStyle 0) can be difficult to calibrate because if you have a base sensitivity setup, as soon as you set a non zero acceleration your base sensitivity at low speeds will change as well. The other problem with style 0 is that you are stuck on a square (power of two) acceleration curve.
The new code tries to solve both problems:
Once you setup your sensitivity to feel comfortable and accurate enough for low mouse deltas with no acceleration (cl_mouseAccel 0), you can start increasing cl_mouseAccel and tweaking cl_mouseAccelOffset to get the amplification you want for high deltas with little effect on low mouse deltas.
cl_mouseAccel is a power value. Should be >= 1, 2 will be the same power curve as style 0. The higher the value, the faster the amplification grows with the mouse delta.
cl_mouseAccelOffset sets how much base mouse delta will be doubled by acceleration. The closer to zero you bring it, the more acceleration will happen at low speeds. This is also very useful if you are changing to a new mouse with higher dpi, if you go from 500 to 1000 dpi, you can divide your cl_mouseAccelOffset by two to keep the same overall 'feel' (you will likely gain in precision when you do that, but that is not related to mouse acceleration).
Mouse acceleration is tricky to configure, and when you do you'll have to re-learn your aiming. But you will find that it's very much forth it in the long run.
If you try the new acceleration code and start using it, I'd be very interested by your feedback.
README for Developers
ioquake3 has a useful new feature for mappers. Paths in a game directory with the extension ".pk3dir" are treated like pk3 files. This means you can keep all files specific to your map in one directory tree and easily zip this folder for distribution.
If you wish to compile external mods as shared libraries on a 64bit platform, and the mod source is derived from the id Q3 SDK, you will need to modify the interface code a little. Open the files ending in _syscalls.c and change every instance of int to intptr_t in the declaration of the syscall function pointer and the dllEntry function. Also find the vmMain function for each module (usually in cg_main.c g_main.c etc.) and similarly replace the return value in the prototype with intptr_t (arg0, arg1, ...stay int).
Add the following code snippet to q_shared.h:
#ifdef Q3_VM typedef int intptr_t; #else #include <stdint.h> #endif
Note if you simply wish to run mods on a 64bit platform you do not need to recompile anything since by default Q3 uses a virtual machine system.
Creating mods compatible with Q3 1.32b
If you're using this package to create mods for the last official release of Q3, it is necessary to pass the commandline option '-vq3' to your invocation of q3asm. This is because by default q3asm outputs an updated qvm format that is necessary to fix a bug involving the optimizing pass of the x86 vm JIT compiler.
Creating standalone games
Have you finished the daunting task of removing all dependencies on the Q3 game data? You probably now want to give your users the opportunity to play the game without owning a copy of Q3, which consequently means removing cd-key and authentication server checks. In addition to being a straightforward Q3 client, ioquake3 also purports to be a reliable and stable code base on which to base your game project.
However, before you start compiling your own version of ioquake3, you have to ask yourself: Have we changed or will we need to change anything of importance in the engine?
If your answer to this question is "no", it probably makes no sense to build your own binaries. Instead, you can just use the pre-built binaries on the website. Just make sure the game is called with:
+set com_basegame <yournewbase>
in any links/scripts you install for your users to start the game. The binary must not detect any original quake3 game pak files. If this condition is met, the game will set com_standalone to 1 and is then running in stand alone mode.
If you want the engine to use a different directory in your homepath than e.g. "Quake3" on Windows or ".q3a" on Linux, then set a new name at startup by adding
+set com_homepath <homedirname>
to the command line. You can also control which game name to use when talking to the master server:
+set com_gamename <gamename>
So clients requesting a server list will only receive servers that have a matching game name.
+set com_basegame basefoo +set com_homepath .foo +set com_gamename foo
If you really changed parts that would make vanilla ioquake3 incompatible with your mod, we have included another way to conveniently build a stand-alone binary. Just run make with the option BUILD_STANDALONE=1. Don't forget to edit the PRODUCT_NAME and subsequent #defines in qcommon/q_shared.h with information appropriate for your project.
Standalone game licensing
While a lot of work has been put into ioquake3 that you can benefit from free of charge, it does not mean that you have no obligations to fulfill. Please be aware that as soon as you start distributing your game with an engine based on our sources we expect you to fully comply with the requirements as stated in the GPL. That includes making sources and modifications you made to the ioquake3 engine as well as the game-code used to compile the .qvm files for the game logic freely available to everyone. Furthermore, note that the "QIIIA Game Source License" prohibits distribution of mods that are intended to operate on a version of Q3 not sanctioned by id software:
"with this Agreement, ID grants to you the non-exclusive and limited right to distribute copies of the Software ... for operation only with the full version of the software game QUAKE III ARENA"
This means that if you're creating a standalone game, you cannot use said license on any portion of the product. As the only other license this code has been released under is the GPL, this is the only option.
This does NOT mean that you cannot market this game commercially. The GPL does not prohibit commercial exploitation and all assets (e.g. textures, sounds, maps) created by yourself are your property and can be sold like every other game you find in stores.
There are now two cvars that give you some degree of freedom over the reported protocol versions between clients and servers: "com_protocol" and "com_legacyprotocol". The reason for this is that some standalone games increased the protocol number even though nothing really changed in their protocol and the ioquake3 engine is still fully compatible.
In order to harden the network protocol against UDP spoofing attacks a new network protocol was introduced that defends against such attacks. Unfortunately, this protocol will be incompatible to the original quake3 1.32c which is the latest official release from id. Luckily, ioquake3 has backwards compatibility, on the client as well as on the server. This means ioquake3 players can play on old servers just as ioquake3 servers are able to service old clients.
The cvar "com_protocol" denotes the protocol version for the new hardened protocol, whereas the "com_legacyprotocol" cvar denotes the protocol version for the legacy protocol. If the value for "com_protocol" and "com_legacyprotocol" is identical, then the legacy protocol is always used. If "com_legacyprotocol" is set to 0, then support for the legacy protocol is disabled.
Mods that use a standalone engine obviously do not require dual protocol support, and it is turned off if the engine is compiled with STANDALONE per default. If you desire backwards compatibility to older versions of your game you can still enable it in q_shared.h by defining LEGACY_PROTOCOL.
cl_guid is a cvar which is part of the client's USERINFO string. Its value is a 32 character string made up of [a-f] and [0-9] characters. This value is pseudo-unique for every player. Id's Quake 3 Arena client also sets cl_guid, but only if Punkbuster is enabled on the client.
If cl_guidServerUniq is non-zero (the default), then this value is also pseudo-unique for each server a client connects to (based on IP:PORT of the server).
The purpose of cl_guid is to add an identifier for each player on a server. This value can be reset by the client at any time so it's not useful for blocking access. However, it can have at least two uses in your mod's game code:
- improve logging to allow statistical tools to index players by more than just name
- granting some weak admin rights to players without requiring passwords
ioquake3 supports the use of PNG (Portable Network Graphic) images as textures. It should be noted that the use of such images in a map will result in missing placeholder textures where the map is used with the id Quake 3 client or earlier versions of ioquake3.
Recent versions of GtkRadiant and q3map2 support PNG images without modification. However GtkRadiant is not aware that PNG textures are supported by ioquake3. To change this behaviour open the file 'q3.game' in the 'games' directory of the GtkRadiant base directory with an editor and change the line:
texturetypes="tga jpg png"
Restart GtkRadiant and PNG textures are now available.
Building with MinGW for pre Windows XP
IPv6 support requires a header named "wspiapi.h" to abstract away from differences in earlier versions of Windows' IPv6 stack. There is no MinGW equivalent of this header and the Microsoft version is obviously not redistributable, so in its absence we're forced to require Windows XP. However if this header is acquired separately and placed in the qcommon/ directory, this restriction is lifted.
Please send all patches to bugzilla (https://bugzilla.icculus.org), or join the mailing list (http://lists.ioquake.org/listinfo.cgi/ioquake3-ioquake.org) and submit your patch there. The best case scenario is that you submit your patch to bugzilla, and then post the URL to the mailing list.
The focus for ioq3 is to develop a stable base suitable for further development and provide players with the same Quake 3 experience they've had for years. As such ioq3 does not have any significant graphical enhancements and none are planned at this time. However, improved graphics and sound patches will be accepted as long as they are entirely optional, do not require new media and are off by default.
Building Official Installers
We need help getting automated installers on all the platforms that ioquake3 supports. We don't necessarily care about all the installers being identical, but we have some general guidelines:
Please include the id patch pk3s in your installer, which are available from http://ioquake3.org/patch-data/ subject to agreement to the id EULA. Your installer shall also ask the user to agree to this EULA (which is in the /web/include directory for your convenience) and subsequently refuse to continue the installation of the patch pk3s and pak0.pk3 if they do not.
Please don't require pak0.pk3, since not everyone using the engine plans on playing Quake 3 Arena on it. It's fine to (optionally) assist the user in copying the file or tell them how.
It is fine to just install the binaries without requiring id EULA agreement, providing pak0.pk3 and the patch pk3s are not referred to or included in the installer.
Please include at least an SDL so/dylib/dll on every platform.
Please include an OpenAL so/dylib/dll, since every platform should be using it by now.
Please contact the mailing list when you've made your installer.
Please be prepared to alter your installer on the whim of the maintainers.
Your installer will be mirrored to an "official" directory, thus making it a done deal.
- James Canete email@example.com
- Ludwig Nussel firstname.lastname@example.org
- Thilo Schulz email@example.com
- Tim Angus firstname.lastname@example.org
- Tony J. White email@example.com
- Zachary J. Slater firstname.lastname@example.org
- Zack Middleton email@example.com
Significant contributions from