ZDOOM v1.22 December 12, 1999 A port of id Software's original Linux Doom source code to Win32 and Linux with additional enhancements by Randy Heit (rheit@iastate.edu). ZDoom's homepage is at: http://zdoom.notgod.com/ Contents 1. Introduction 1-1. Significant differences between ZDoom and regular Doom 1-2. Installing ZDoom 2. Command line arguments 2-1. Configuration options 2-2. Play options 2-3. Loading options 2-4. Debug options 2-5. Multiplayer options 2-6. Other options 3. Configuring ZDoom 3-1. The Player Setup menu 3-2. The new Options menu 3-3. The Configure Controls menu 3-4. The Gameplay Options menu 3-5. The Display Options menu 3-6. The Messages menu 3-7. The Video Modes menu 3-8. Changing settings not found in a menu 4. The Console 4-1. Activating the console 4-2. Using the console 5. Key bindings 6. Playing a network game 6-1. Playing a network game with the DOS version 6-2. Playing a network game the nice way 6-3. Playing a network game the old way 6-4. Configuring ICQ to launch an Internet game 6-5. Playing with a modem/serial/parallel cable connection 7. Known bugs 8. Acknowledgments 1. Introduction =============== ZDoom is an enhanced port of the official DOOM source code. Originally for Win32 (Windows 95/98/NT), it is now available for Linux as well. ZDoom may be used and distributed free of charge. It must not be sold for profit. These are terms set forth by the Doom Source Code license, the MIDAS Digital Audio System license, and the Prometheus Truecolor license. 1-1. Significant differences between ZDoom and regular Doom ----------------------------------------------------------- - Will work under Windows NT with sound. - Free look (look up/down). - High resoulutions. - Translucency. - A console. - MOD and MIDI support. - Better mouse support. - Limited TCP/IP (actually UDP) networking. - Quake-style key bindings. - Jumping. - Crosshairs. - Walk over/under other things. - Hexen-style map editing. - Almost full BOOM support. 1-2. Installing ZDoom --------------------- To use ZDoom, unzip both zdoom.exe and zdoom.wad into your existing Doom directory. (You must already have an existing copy of Doom to use this program.) If nothing else, you need to download the shareware Doom, which is available in several places on the Internet. To truly take advantage of ZDoom, though you need the full game. The Depths of Doom Trilogy can be had fairly cheaply and includes Ultimate Doom, Doom II, and The Master Levels for Doom II. ZDOOM REQUIRES an IWAD from a 1.9 version of Doom. If you have a lesser version, you can find patches to upgrade your version at ftp.idsoftware.com. ZDoom on Windows systems also requires Microsoft's DirectX 3 or later. If you are using Windows 95, you can download the latest version from Microsoft's website at http://www.microsoft.com/directx. Windows NT 4.0 users can get it as part of Service Packs 3 and 4 (which are available at http://www.microsoft.com/NTServer/all/downloads.asp). ZDoom for Linux requires Hermes. You can get it from http://hermes.terminal.at 2. Command line parameters ========================== ZDoom supports many command line parameters. They are described below: 2-1. Configuration options -------------------------- -bits Specifies the display depth. Currently, only 8 is supported. -width -height Specifies the desired resolution of the screen. If only one of -width or -height is specified, ZDoom will try to guess the other one based on a standard aspect ratio. If the specified resolution is not supported by your DirectDraw drivers, ZDoom will try various resolutions until it either finds one that works or gives up. To determine which resolutions ZDoom can use, use the vid_describemodes command from the console once you have started the game. -cdrom Causes ZDoom to look for savegames and zdoom.cfg in a directory called C:\ZDOOMDAT. Screenshots will also be saved in this directory. -config Causes ZDoom to use an alternative configuration file. If configfile doesn't exist, it will be created. -heapsize This is the size in megabytes of the zone memory manager’s heap. If set too low, problems will almost certainly arise. 6 megabytes is probably a reasonable minimum to use for this parameter, although ZDoom won’t stop you from using something smaller like 0.5 megabytes (which will almost certainly give you a Z_Malloc error if you try it). Values too high will also cause problems, because the game will use the system heap to obtain memory too. If the zone heap is too large, it will have to use virtual memory, and everything will be slower. By default, the heap size is 8 megabytes. -iwad The IWAD file specified after this parameter will be used as the game IWAD file instead of the default one. Normally, ZDoom looks for IWADs in the following order and uses the first one it finds: doom2f.wad doom2.wad plutonia.wad tnt.wad doom.wad doom1.wad ZDoom will look for the IWAD in the current directory, in the same directory as zdoom.exe, in the directory set in the DOOMWADDIR environment variable, and in the directory set in the HOME environment variable. -m (DOS only) Displays the MIDAS configuration screen when the game starts so you can pick your soundcard if it isn't detected properly. Sorry, but there isn't any way to save this configuration. -noflathack Some wads were able to use new flats with the original Doom.exe. ZDoom will normally try and detect them. Use this switch to prevent that. -noidle (Win32 only) When the user presses Alt-Tab to switch from ZDoom to another window, ZDoom will normally reduce its priority class so that it doesn't slow the rest of the system down. By specifying this parameter, ZDoom will try to run at full speed even when it isn't the active window. -nommx Causes ZDoom not to use any MMX code. Normally, ZDoom should be able to figure out on its own whether the processor supports MMX or not and will act accordingly. Currently, MMX isn't actually used, so this switch doesn't do anything. -nomusic Prevents the playback of music. -noptc (Win32 only) This forces ZDoom to use DirectDraw directly instead of using PTC as an abstraction layer on top of it. Setting the cvar vid_noptc to 1 has the same effect as this command line option, and is also remembered so that you don't need to type it in each type you run the game. Unless you have problems with video, it is recommended that you let ZDoom use PTC. -nosfx Prevents the playback of sound effects. Because of the nature of MOD music, this also disables playback of MODs. -nosound Disables both music and sound effects. -notrans Disables translucency. -primarysound (Win32 only) If DirectSound is available, this parameter will cause ZDoom to try to use the primary buffer for mixing. This can potentially lower sound latency but also introduces the possibilty for more sound problems. -wavonly (Win32 only) Forces ZDoom to use the standard Windows wave device for sound output instead of DirectSound. If you experience problems with sound, it may be worthwhile trying this parameter, although it will generally introduce a large amount of latency, causing sounds to be heard later than expected. -transfile Causes ZDoom to use an alternative translucency cache file. This file is automatically generated if it doesn't already exist and is used to speed up startup by eliminating the need to recalculate the translucency tables every time the game is started. By default, ZDoom will look for a file called transtab.tch in the same directory that it resides in. If the .tch extension is omitted, it will automatically be added. 2-2. Play options ----------------- -avg Stands for "Austin Virtual Gaming." Automatically advances to the next level after 20 minutes. This is equivalent to +set timelimit 20 or -timer 20. -fast Sets the dmflags cvar to make the monsters as fast as in nightmare mode even if you aren't playing nightmare. -nomonsters Sets the dmflags cvar so that monsters are not spawned on levels. -respawn Sets the dmflags cvar so that monsters respawn even if you aren't playing at nightmare difficulty. -timer Causes ZDoom to automatically advance to the next level after x minutes. This is equivalent to +set timelimit . -turbo Causes player movement to be x% as fast as normal. Valid values are 10-256, with 100 being normal. Values larger than 100 are considered cheating. This is equivalent to +set turbo . 2-3. Loading options -------------------- -deh Causes ZDoom to apply a DeHackEd or .bex patch to the game. This must be a text patch; binary patches are not supported. (As far as I know, most patches are text patches so this shouldn’t be too much of a problem.) Also, only patch format 6 is known to be supported. Other formats may or may not work properly. If the .deh extension is omitted, ZDoom will automatically add it. If this is a .bex patch, however, the extension does need to be included. -bex This is the same as -deh, except the default file extension is .bex. -file [file2[.wad] [file3[.wad] ... Used to load one or more PWAD files which generally contain user- created levels. Files listed further right take precedence to files listed before them, so as an example, if both file1.wad and file2.wad contain have a MAP01, the MAP01 in file2.wad would be used instead of the one in file1.wad If the .wad extension is omitted, ZDoom will automatically add it. -loadgame Automatically loads savegame x, where x is 0-7 corresponding to one of the savegame slots. -maxdemo Specifies the initial size of the recording buffer used with the -record parameter. This buffer will grow as needed, but you might want to use this parameter to avoid any potential pauses when the buffer grows. The default size of 128k is large enough for about 10 minutes of a deathmatch, although the actual amount of space used by a demo depends on what happens in the demo (due to the rudimentary delta compression ZDoom applies to demos): If you did nothing but stand still, this should be large enough for about 5.5 days. -playdemo ZDoom will automatically play the specified demo when it starts. If the .lmp extension is omitted, it will automatically be added. -record Records a demo. The -warp parameter or +map command should also be used if you don't want to record the demo on MAP01 or E1M1. To stop the demo recording, use the "stop" console command. If the .lmp extension is omitted, it will automatically be added. Unlike regular DOOM, only one person in a multiplayer game needs to specify the -record parameter if they want to record a demo. However, if someone quits before the person recording the demo does, the person recording will automatically quit, too, because I didn't bother to give demos a way to record when a player leaves the game. -skill Sets the initial skill level. This is overridden if you start a new game from the New Game menu. -timedemo Plays back a demo faster than -playdemo and displays a framerate when the demo is over. If the .lmp extension is omitted, it will automatically be added. -warp -warp For Doom II, starts the game on map m. For other versions of doom, starts the game on episode e, map m. The +map command can also be used to perform this action, but it expects the actual name of the map. (i.e. MAP01, E1M1, ...) 2-4. Debug options ------------------ -noblit Causes ZDoom not to update the display on the screen, but it stills draws everything to an internal buffer. Only useful with -timedemo. -nodraw Causes ZDoom not to draw anything at all. Only useful with -timedemo. -debugfile Causes ZDoom to write network debugging information to a file called debugN.txt where N is your player number. -devparm Prints a message telling you that you can take screenshots with the Print Screen key. With the original Doom, using -devparm was the only way to take screenshots. With ZDoom, screenshot is just another command. +set developer 1 Prints a bunch of debugging messages to the console. 2-5. Multiplayer options ------------------------ -altdeath Informs ZDoom that you will be playing a deathmatch game and sets the dmflags cvar so that items other than invulnerability and invisibilty respawn after being picked up. Only player 1 needs to specify this. -deathmatch Informs ZDoom that you will be playing a deathmatch game and sets the dmflags cvar so that weapons stay behind when a player picks them up. Only player 1 needs to specify this. -dup Causes ZDoom to transmit fewer player movement commands across the network. Valid values range from 1-9. For example, -dup 2 would cause ZDoom to send half as many movements as normal. -extratic Causes ZDoom to send a backup copy of every movement command across the network. -host This machine will function as a host for a multiplayer game with players (including this machine). It will wait for other machines to connect using the -join parameter and then start the game when everyone is connected. See section 6 for more details. -join Connect to a host for a multiplayer game. See section 6 for more details. -net [hosts] ... Informs ZDoom that you will be playing a network game. See section 6 about network games below for more details. -port Specifies an alternate IP port for this machine during a network game. By default, the port 5029 is used. 2-6. Other options ------------------ In addition to the above parameters, console commands can be included on the command line by preceding them with a '+'. Some, however, will cause the game to crash if you use them (such as cheats). If you wish to change a cvar in this manner, it is a good idea to use the set command. This is because any set commands will be executed just after the config file is loaded, and all other commands are executed after every game subsystem has been initialized. For example, to turn on developer messages when you start ZDoom, use the command line: zdoom +set developer 1 instead of zdoom +developer 1 If you use the second line, you'll miss out on all the developer messages that get generated during the startup process. For a complete list of console commands and cvars, refer to the commands.txt file. If you want to get the most from ZDoom, I highly recommend at least glancing at it. 3. Configuring ZDoom ==================== Zdoom now includes a new options menu which can be used to set some of the game's new options. A new control configuration menu is also included that can be used to easily assign some commands to different keys without a separate setup program. 3-1. The Player Setup menu -------------------------- This menu is found on the main menu and is used to select your player's name, team, suit color, gender, skin, and autoaim setting. Your player's name will be displayed on the scoreboard in deathmatch games and in the obituaries that are printed when you die. In teamplay games, your team name is used to identify which team you are on and also appears in the deathmatch scoreboard. The suit color is controlled with three sliders; one for each of red, green, and blue color components. Because the Doom palette only has 256 colors, not all possible combinations will look good. The current color is displayed on an animated player character to the right of the sliders. Your player's gender can be male, female, or cyborg. However, unless you have a soundpack or a skin with non-male sounds, your player will still sound like the male DOOM marine. Some obituaries (such as "Zathras checks his glasses") will adjust themselves to fit the gender you select. You also have the option of looking like something other than the DOOM marine by picking a skin. ZDoom doesn't come with any, but it is compatible with skins developed for Doom Legacy. You can find skins to download from their site at http://frag.com/doomlegacy/dl_skins.htm. To automatically load skins at game startup, create a skins directory (in the same directory as zdoom.exe), and place your skins in it. You can also load skins from the command line with -file. The autoaim settings controls how close your vertical aim should be from a monster before ZDoom will adjust your aim to shoot it. By default, this value is set to always which means that it behaves just like the original Doom. Never indicates that ZDoom will never adjust your aim for you, and you will shoot where you aim. There are also intermediate values which adjust how much leeway you can have in your aim. 3-2. The Options menu ---------------------- ZDoom's Options menu is different from the options menu in the original Doom and contains the following items: Customize Controls Displays the customize controls menu. Go to console Opens the console. Gameplay Options Displays the gameplay options menu. Display Options Displays the display options menu. Set video mode Displays the video modes menu. Mouse speed Adjusts how sensitive ZDoom is to mouse movements. MIDI Music Volume Adjusts the volume of MIDI and MUS music. This is the type of music found in the levels that come with DOOM and does not affect the volume of MOD music. MOD Music volume Adjusts the volume of MOD music. Setting this to a high setting will usually result in nasty-sounding aliasing. Note that this only effects the volume of MOD music and not MUS or MIDI music. Sound volume Adjusts the volume of sound effects. Always Run When on, you will always run whether or not you are holding down the +speed key. By default, you can also change this setting by pressing the caps lock key while playing a game. Always Mouselook When on, moving the mouse up and down will always cause you to look up and down instead of only when the +mouselook key is pressed. Invert Mouse When on, mouselooking is reversed so that pushing the mouse forward causes you to look down, and pulling the mouse back causes you to look up. Lookspring When on, releasing the +mouselook key will automatically center your view. Lookstrafe When on, moving the mouse left and right will always cause the player to move in the corresponding direction. Reset to defaults Select this item to set all options to their default values. Reset to last saved Select this item to set all options to the values contained in the configuration file. 3-3. The Configure Controls menu -------------------------------- This menu is found on the options menu and lists several controls and up to two keys assigned to that control. There may be more than two keys assigned to a control, but only two of them will be shown at a time. If there are no keys assigned to the given control, this will be indicated with ???. To change the keys assigned to a control, use the up and down arrow keys to select the control you wish to change. To assign a new key to the control, press Enter and then the key you want to activate this control. If you decide you don’t want to assign a new key to the control, press Escape. To remove all keys for the selected control, press Backspace instead of Enter. This menu only lists a select few commands, but they are the ones that are most likely to be used during gameplay. To assign other commands to keys, you can use the bind command from the console. 3-4. The Gameplay Options menu ------------------------------ This menu is found in the options menu and controls several options related to game play and map directly to different dmflags values. The dmflags value corresponding to the current settings can be found at the bottom of the menu. Many of these settings apply only to deathmatch games and are indicated by a (DM) after their names. During a multiplayer game, only player 1 can change these settings. Currently, there are 18 dmflags that can be set from this menu: Falling damage When set to yes, falling long distances will cause players damage. Weapons stay (DM) When set to yes, weapons won't disappear when they're picked up. This is the default when started with -deathmatch. Allow powerups (DM) When set to yes, powerups (such as light amplification goggles) will be spawned on levels. Allow health (DM) When set to yes, any items that give you health (such as stimpacks) will be spawned on levels. Allow armor (DM) When set to yes, armor will be spawned on levels. Spawn farthest (DM) When set to yes, dead players will respawn as far as possible from other players. Same map (DM) When set to yes, exiting a level will restart the current one instead of advancing to another. Force respawn (DM) When set to yes, dead players will respawn immediately. Allow exit (DM) When set to no, anyone who tries to leave the level will be instantly killed. Infinite ammo When set to yes, weapons do not deplete their ammo. No monsters When set to yes, monsters will not be spawned on levels. Monsters respawn When set to yes, monsters respawn (just like nightmare difficulty). Powerups respawn When set to yes, powerups other than invulnerability and invisibility will respawn. This is the default for -altdeath. Fast monsters When set to yes, monsters will be faster than normal (just like nightmare difficulty). Allow jump When set to yes, players can jump. Allow freelook When set to yes, players can look up and down. Friendly fire When set to yes, players on the same team can hurt each other. If you kill a teammate, you also lose a frag. If this is set to no, players on the same team will still be able to push each other around with their weapons, but they won't be able to hurt each other. This flag only has an effect when teamplay is on. Otherwise, all players can always hurt each other. The final option on this menu, "Teamplay," is not a dmflag. When it is on, the deathmatch scoreboard will also show the name's of players' teams, and the game will also use the setting of the friendly fire dmflag. Some of the DM-only flags (such as item respawning) can also be enabled for singe player and co-op can be enabled by opening the console and setting the alwaysapplydmflags cvar to 1. 3-5. The Display Options menu ----------------------------- This menu is found in the options menu and controls various aspects of the display. Options currently available are: Messages Displays the messages menu. Screen size Controls the size of the screen used to draw the players view. Larger sizes require more processing power to draw but also look better. Brightness Controls how bright the display is. Crosshair Selects one of eight crosshairs or no crosshair at all. Some of these crosshairs are probably of dubious value but are available anyway. Column render mode Selects a column renderer. Original is the one used by DOOM. And optimized is a new one that can as much as double the framerate on modern processors. If you're using a 486, you should definitely be using the original renderer, because the optimized one will cut your framerate by at least half. Detail mode Controls vertical and horizontal pixel doubling. This is similar to the low detail mode of the original Doom which would double the size of pixels horizontally except that it can also do the same vertically. Doubling horizontally will almost always result in a speedup significantly larger than doubling them vertically. Stretch short skies When turned on, short sky textures (such as the ones included with Doom) are stretched vertically so that they don't wrap when you look up or down. Stretch status bar When turned on, the status bar will always be as wide as the screen. Screen wipe style Selects the style of screen wipe to use between levels. "None" means to just switch directly to the new screen. "Melt" is the style used by Doom. "Burn" makes the old screen burn into the new one. "Crossfade" fades out the old screen while fading the new one in at the same time. DirectDraw palette hack (Win32 only) If you have trouble with the palette, your video card probably has buggy drivers. Turn this on, and ZDoom will reset the palette every frame and not just when it changes. Use fuzz effect Controls whether the fuzz effect will be used for partially invisible things. If turned off, then translucency will be used instead. Rocket trails Controls whether rockets leave a trail of particles behind them. Blood type Determines the way blood is draw: as sprites only, particles only, or both. Bullet puff type Determines the way bullet puffs are drawn: either as sprites or as particles. Rotate automap When turned on, the automap will rotate to keep the area that you are facing toward the top of the map. Overlay automap When turned on, the automap will first be overlayed on top of the player view before being drawn fullscreen. Standard map colors When turned on, ZDoom will use the automap colors from the original Doom instead of the colors specified with the am_*color cvars. 3-6. The Messages Menu ---------------------- This menu lets you adjust how messages are displayed on the screen. Possible items you can select from this menu are: Scale text in high res When turned on, message text is enlarged on higher resolutions so that it takes up about as much space as it would on a 320x200 screen. Minimum message level This is the minimum message level (see below) that will be shown. The remaining items control the colors used to display messages each level of message: Item pickup Messages that appear when you pick up an item. Obituaries Messages that appear when a player dies. Critical messages Anything that doesn't fit into one of the other categories. Chat messages Messages from another player. Team messages Messages from a teammate who is only speaking to his team. Centered messages Messages in the middle of the screen 3-7. The Video Modes menu ------------------------- The video modes menu can be used to select the current display mode and switch between windowed mode and full screen. This menu can be found as a selection inside the Options menu. 3-8. Changing settings not found in a menu ------------------------------------------ There are many settings (cvars) that aren't listed in any menu. To change these you need to use the console (see section 4). For a complete list of these, refer to the commands.txt file. 4. The Console ============== ZDoom has a console very similar to Quake's. Almost all game settings and controls can be accessed from it. For a complete list of console commands and cvars, see the commands.txt file. 4-1. Activating the console --------------------------- There are two ways to activate the console: From the Options menu, and with the toggleconsole command. The console can always be activated by selecting "Go to console" from the Options menu. While playing a game, pressing a key bound to the toggleconsole command can also activate the console. By default, this is the ` key, but it can be changed to any key with the bind command. 4-2. Using the console ---------------------- Using the console is fairly simple. Just type in commands and press Enter to execute them. To scroll around in the console’s text buffer, you can use the Page Up and Page Down keys. Pressing Shift-Page Up scrolls to the top of the buffer, while pressing Shift-Page Down scrolls to the bottom. Without pressing Shift, these keys will scroll one line at a time in the corresponding direction. A handy feature of the console that was added in 1.13 is tab-completion. To use it, begin typing a command, and then press tab repeatedy to cycle through all the commands that begin with whatever you typed. To deactivate the console, you can press either ` or Escape. This will also erase any text you might have been typing on the command line. 5. Key bindings =============== ZDoom supports Quake-style controls as opposed to those of the original Doom. To bind a command to a key, use the bind command followed by the key to bind and the command(s) to bind to it. Multiple commands should be separated by semicolons (;) and if there are any spaces in the commands, they need to all be enclosed in quotation marks ("). For example, to make the Page Up key cause the player to look up, use the command: bind pgup +lookup From now on, pressing Page Up will cause you to look up. Since this is also an action command (it begins with a '+'), releasing Page Up will also execute the -lookup command, which will cause you to stop looking up. You can also refer to keys by scancodes instead of names. For instance, bind #3 "echo I don't like my pistol." and bind 2 "echo I don't like my pistol." will both do the same thing, because 3 is the scancode for the "2" key. If you use key names, the keys are assumed to be arranged in a Qwerty layout. This may be somewhat confusing because the console uses the layout selected in the Keyboard control panel (which might not be Qwerty), but I decided to do it this way for consistancy. Thus, if you wanted to assign the key directly to the right of the tab key to a command, you would use "bind q " even if that key isn't labeled Q on your keyboard. All key bindings are automatically saved in the config.cfg file when the game quits. The following special keys as well as the alphanumeric keys are named and can be bound. These are the same keys displayed in the Configure Controls menu: backspace tab enter ctrl shift kp* * on the numeric keypad alt Either the left or right Alt key space capslock numlock scroll Scroll Lock kp7 7 on the numeric keypad kp8 8 on the numeric keypad kp9 9 on the numeric keypad kp- - on the numeric keypad kp4 4 on the numeric keypad kp5 5 on the numeric keypad kp6 6 on the numeric keypad kp+ + on the numeric keypad kp1 1 on the numeric keypad kp2 2 on the numeric keypad kp3 3 on the numeric keypad kp0 0 on the numeric keypad kp. . on the numeric keypad kana convert noconvert yen kp= = on some numeric keypads circumflex kanji stop ax unlabeled kp, , on some numeric keypads kp/ / on the numeric keypad sysrq home uparrow pgup leftarrow rightarrow end downarrow pgdn ins del lwin The left Windows key rwin The right Windows key apps The application menu key pause The pause key mouse1 The left mouse button mouse2 The right mouse button mouse3 The middle mouse button mouse4 The fourth mouse button if yours has one joy1 - joy32 All 32 joystick buttons supported by Windows mwheelup The mouse wheel was rolled up mwheeldown The mouse wheel was rolled down Note that i_remapkeypad must be "0" for kp0, kp., kp1, kp2, kp3, kp4, kp6, kp7, kp8, and kp9 to be treated as distinct keys. 6. Playing a network game ========================= Due to changes ZDoom has made to the message format of network games, you will definitely not be able to play a network game between ZDoom and another version of Doom. Since ZDoom uses the UDP protocol for networking, it is possible to play a game on the Internet as well as a LAN. If you want to try it, a good frontend to try is ZM (http://www.doomworld.com/zm). 6-1. Playing a network game with the DOS version ------------------------------------------------ The information in the following sections about network games does *not* apply to the DOS version of ZDoom. While networking with the DOS version is untested, it should work just like the original DOOM: through sersetup or ipxsetup. If you want to try it, rename zdoomdos.exe to whatever sersetup or ipxsetup expects (it varies depending on which game they came with). BE SURE TO RENAME THE ORIGINAL DOOM.EXE, DOOM2.EXE, HERETIC.EXE, OR HEXEN.EXE TO SOMETHING ELSE BEFORE YOU DO THIS. Then launch a game using DM or some similar program. Please note that due to the size of the network packets used during game startup, you may experience access violations with the DOS version. 6-2. Playing a network game the nice way ---------------------------------------- As of version 1.19, starting network games has been vastly simplified. The old method is retained for compatibility (see the next section), but you are encouraged to use this new method. Not only is the new method easier, but it should work with IP masquerading, providing that only the machines connect to the host use IP masquerading. What follows are Jeffrey Cuenco's instructions for using them: The syntax for these command-line parameters are as follows: To start (host) a game you simply type: zdoom -host where x is the number of players that are going to be in the game (including yourself). To join a game you simply type: zdoom -join where host ip is the ip address of the "host" computer. These functions simplify the netgame process by having one computer, the "host," accept connection requests from other computers running ZDoom. The host then sends back a response packet to the client, which contains the client's console number. When the total number of hosts connected to the host + the host itself equals the number of players specified in "-host," then the host sends a packet to all the clients connected to the host, containing the ip addresses of all the other computers connected to the host excluding the ip of the host itself and your ip (which you already have). When each client receives this "all here" packet, then it stores each address under a different index in the array that holds all the addresses of the client computers you're playing against. After each client successfully receives the "all here" packet and has already sent ACKs (acknowledgement packets) to the host, then the host sends a "Go" packet to all clients stating that it's ok to start the netgame. What follows this is the normal activity that you've already seen after you execute "-net ..." 6-3. Playing a network game the old way --------------------------------------- To begin a network game, start ZDoom with the "-net" command-line parameter. This is *different* from the DOS version of Doom (but the same as the Linux version). The -net parameter takes the form: -net [machine1] [machine2] ... is the player number that your machine is playing as (1 to 8) and is followed by the addresses of the other machines in the network game. These addresses can be either IP addresses like 192.168.0.1 or hostnames like some.machine.com. To specify an alternate port to connect to on the other machines, append a colon to the address and follow it with the port number you wish to use (i.e. some.machine.com:26000). The number of players in a netgame is determined by the number of machines after in the -net parameter. For a two-player game, you would only list one other machine. For a four-player game, you would list three. Each player must choose a different console number. One person *must* be console 1, and there can be no gaps between console numbers. For instance, in a two-player game it's okay for one player to be console 1 and the other to be console 2, but it's not okay if one player is console 1 and the other is console 4. An example for a two-player game: One machine named joe runs: zdoom -net 1 bob -deathmatch The other machine named bob runs: zdoom -net 2 joe -deathmatch It's also possible to start a network game on your own machine if you run ZDoom in a window with the -nomusic and -noidle parameters: Start the first copy of zdoom: zdoom -net 1 localhost:26000 -port 26001 -noidle -nomusic Then start the second copy: zdoom -net 2 localhost:26001 -port 26000 -noidle -nomusic This works much nicer under Windows NT than it does under 95/98. 6-4. Configuring ICQ to launch an Internet game ----------------------------------------------- I don't personally recommend using ZDoom on the Internet (and have never tried it), but if you want to give it a try, it's just like setting it up for a LAN game. You might also want to try specifying the -extratic and -dup 2 parameters to help compensate for the latency the Internet introduces. Doomworld's Linguica has also provided instructions for setting up ICQ to launch a game of ZDoom: With a little tweaking I was able to successfully configure the nearly ubiquitous program ICQ to launch ZDoom games with literally the click of a button. Here's how: Go into the "Preferences" menu in ICQ and then "Internet Phone/Games/Chat." Then click on "New External." You'll be given a box with three empty lines to fill in. In the first line, type in the title of the application, i.e. "ZDoom." In the second line, type in the path to your zdoom.exe -- "C:\DOOM2\zdoom.exe" or whatever. In the third line, type in the following: "-net 2 %i -extratic -dup 2 -deathmatch -nomonsters -skill 5 -warp 01 -nomusic" which will configure ZDoom to DM on Map01 with the optimum TCP/IP deathmatch settings. Then click on the "Client/Server Application" button. This will bring up two additional lines to fill in. In the fourth line, type the same thing as in line 2: "C:\DOOM2\zdoom.exe" or whatever. In the fifth line, type "-net 1 %i -extratic -dup 2 -deathmatch -nomonsters -skill 5 -warp 01 -nomusic" which once again configures ZDoom for optimum Internet play. It's exactly the same as line 3 except it has "-net 1" instead of "-net 2." Once all this is typed in, press OK. Then, if you want to DM a friend who has similarly enabled his ICQ, simply click on their name, click on "Internet Phone/Games," and then on "ZDoom." And away you go! 6-5. Playing with a modem/serial/parallel cable connection ---------------------------------------------------------- ZDoom only supports UDP games. However, using Microsoft's Dial-Up Networking (included with Windows 95/98/NT), it should be possible to also play a game on two computers connected with modems or null-modem serial or parallel cables. My only network connection is my Ethernet card, so I haven't actually tried this, but I can't see any reason why it shouldn't work. If you're running Windows 95, go download Dial-Up Networking 1.3 from http://www.microsoft.com/windows95/downloads/contents/wurecommended/s_wunetworking/dun13win95/default.asp and install it. If you're running Windows 98, open the "Add/Remove Programs" control panel and click the Windows Setup tab. Choose "Communications" from the components list and click "Details..." If there isn't a check by "Dial-Up Networking" and "Dial-Up Server," check them and click OK. Click OK again to close the control panel. Now go visit http://www.geocities.com/TimesSquare/Fortress/4004/guide.html and start reading the section entitled "Configuring the Dial-Up-Server." Once you have everything set up, start a game using the instructions for starting a LAN game above. If you want to use two computers connected directly using a parallel or serial cable, you also have to use Microsoft's Direct Cable Connection. 7. Known Bugs ============= * When played in a window on Windows NT, the mouse can sometimes go crazy. You can get around this by pausing and unpausing the game several times or Alt-Tabbing out of ZDoom and back into it. Alternatively, you can also set the in_mouse cvar to "2" to force ZDoom to use DirectInput to read the mouse, but this may make the mouse very jerky while using the keyboard at the same time. * Some machines were incapable of running version 1.13 and died inside of I_StartGraphics. I have been unable to reproduce this on my machine and could find nothing wrong with the code, so my best guess is that it's a driver problem (if it still happens). * I've had reports that ZDoom will rearrange the icons on the desktop after quitting the game in fullscreen. I have not had this happen to me, but it appears to be a DirectDraw problem. If you find another bug with ZDoom, first try and duplicate it. If you can't duplicate it, it's probably either a problem with your system or omething that I won't be able to fix unless I stumble on it. (I actually did find an obscure bug this way!) If you can duplicate the problem, run the game in a window, and send me the contents of the dialog box that pops up when it dies. If you have Drwatson (found in the \windows\system directory of Windows 95B and 98), also run that beforehand and send me a copy of the log file it generates (provided that it's not too large). Also describe what you were doing when the problem occured and list any PWADs or DeHackEd patches you were using at the time. 8. Acknowledgments ================== (in no particular order) id Software / These are the people who developed Doom and later released John the source code for the Linux port. Without them, there Carmack would be no ZDoom. I have also used some of the functions from their Quake2 game DLL source. Bernd Packaged up id's Linux code for the initial source release. Kreimeier Raven Portions of Heretic and Hexen were used in ZDoom. Software Chi Hoang Responsible in one way or another for BOOM. It provided a Team TNT significant codebase for ZDoom. Information about BOOM can be found at the Team TNT website: http://www.teamtnt.com/boompubl/ixboom.htm Lee Killough For all his brilliant work on both BOOM and later MBF. Portions of MBF were used in ZDoom, primarily to fix BOOM bugs. Yoghurt Creator of the Cajun Bot. http://www.doomworld.com/doombot/ Sebastien Created qmus2mid which I used to determine the structure of Bacquet DOOM's MUS lumps so that the game would have music. Andy Bay Original input code is from his (discontinued) ATB Doom port. Peterri Original sound code and some assembly is from his Kangaslampi (discontineud) NTDOOM port. He was also the person primarily responsible for writing the MIDAS Digital Audio System 1.1.2, which is used for all sound effects and MOD music. It is copyright 1996,1997 Housemarque Inc. It can be found at http://www.s2.org/midas/. Glenn "Gaffer" Developed the Prometheus Truecolor library. OpenPTC was used Fiedler for the latest version of ZDoom, and older versions of PTC were used for older versions of ZDoom. Its homepage is at http://www.gaffer.org/ptc/. Markus Wrote the miniLZO library, which ZDoom uses for data F.X.J. compression. Its webpage is at Oberhummer http://wildsau.idv.uni-linz.ac.at/mfx/lzo.html Greg Lewis Released his DeHackEd source, without which adding DeHackEd support would have been much harder.