== Chocolate Doom installation == These are instructions for how to install and set up Chocolate Doom for play. == Obtaining an IWAD file == To play, you need an IWAD file. This file contains the game data (graphics, sounds, etc). The full versions of the games are proprietary and need to be bought. The IWAD file has one of the following names: doom1.wad (Shareware Doom) doom.wad (Registered / Ultimate Doom) doom2.wad (Doom 2) tnt.wad (Final Doom: TNT: Evilution) plutonia.wad (Final Doom: Plutonia Experiment) chex.wad (Chex Quest) freedm.wad (FreeDM) If you don't have a copy of a commercial version, you can download the shareware version of Doom (extract the file named doom1.wad): * https://www.doomworld.com/idgames/idstuff/doom/win95/doom95 (idstuff/doom/win95/doom95.zip in your nearest /idgames mirror) If you have a commercial version on a CD-ROM, obtaining the IWAD file is usually straightforward. Simply locate the IWAD file on the disc and copy it off. The Doom games, along with Heretic and Hexen, are available to buy for download on Steam (http://www.steampowered.com/), but are only available for Windows. To find the IWAD files on a Windows system, look in the Steam directory (usually within "Program Files"), under the "steamapps/common" path. Older floppy disk versions are harder to deal with. The easiest way to install from floppies is to run the original installer program inside an emulator such as DOSbox (http://www.dosbox.com/). As an alternative to using an emulator, it is possible to extract the files manually. On the install disk(s), you will find several files with numbered extensions (eg. "doom_se.1"). From the command line it is possible to combine these files into a single large file, using a command similar to the following: cat doom_se.1 doom_se.2 doom_se.3 doom_se.4 doom_se.5 > doom_se.lzh The resulting file is an LHA archive file, and it can be extracted using an LHA archive tool (there is one available for almost every operating system). == Running the game == Chocolate Doom needs to know where to find your IWAD file. To do this, do one of the following: * Run Chocolate Doom from the Unix console with the '-iwad' command line parameter to specify the IWAD file to use, eg. chocolate-doom -iwad /root/doom2.wad * Put the file into one of the following directories: /usr/share/games/doom /usr/local/share/games/doom * Set the environment variable DOOMWADDIR to specify the path to a directory containing your IWAD files. * If you have multiple IWADs in different directories, set the environment variable DOOMWADPATH to be a colon-separated list of directories to search (similar to the Unix PATH environment variable). == Playing with Freedoom == Freedoom is an open content project to create a Doom engine-based game that is entirely free software. The website can be found here: https://freedoom.github.io/ The main Freedoom IWAD files are not currently compatible with Chocolate Doom. However, you can play using FreeDM, the deathmatch spinoff project. If you want to play single player games, you'll need to download additional fan-made WAD files to use in conjunction with it. Check out the Chocolate Doom wiki's page on Freedoom for some suggestions. == Playing with Chex Quest == Chex Quest is a game based on Doom with some minor modifications that was distributed with boxes of Chex cereal in 1997. It is possible to play Chex Quest using Chocolate Doom. To do this, the following files are needed: * The IWAD file 'chex.wad', from the Chex Quest CD. * The dehacked patch 'chex.deh', which can be found here: https://www.doomworld.com/idgames/utils/exe_edit/patches/chexdeh (utils/exe_edit/patches/chexdeh.zip in your nearest /idgames mirror) Copy these files into a directory together and use the '-iwad' command line parameter to specify the Chex Quest IWAD file: chocolate-doom -iwad chex.wad == Installing upgrades == Chocolate Doom requires a version 1.9 IWAD file. Generally, if you install a recent version of Doom you should have a version 1.9 IWAD. However, if you are installing from a very old CD version or from floppy disks, you might find you have an older version. The most obvious symptom of an out of date IWAD file is that the game will exit at the title screen before the demo starts, with the message "Demo is from a different game version!". If this happens, your IWAD file is out of date and you need to upgrade. Upgrade patches are available that will update your game to the latest version, the following sites have the patches: http://www.doom2.net/doom2/utils.html ftp://ftp.idsoftware.com/idstuff/doom ftp://ftp.idsoftware.com/idstuff/doom2 Please see http://doomwiki.org/wiki/Game_patch for more information. As the patches are binary patches that run as DOS executables, you will need to use a DOS emulator (such as DOSBox) to run them. == Music support == Chocolate Doom includes OPL emulation code that accurately reproduces the way that the in-game music sounded under DOS when using an Adlib/Soundblaster card. This is, however, not to everyone's taste. Chocolate Doom includes a number of different options for better quality MIDI playback; see the file README.Music for more details of how to set these up. # vim: tw=70