========================= Freeciv 1.9 documentation ========================= Welcome to Freeciv! This archive contains Freeciv version 1.9, a free Civilization clone for X, primarily under Unix. It has support for multiplayer games locally or over a network, and an AI which gives most people a run for their money. Freeciv aims to be mostly rule-compatible with Civilization II[tm], published by Sid Meier and Microprose[tm]. A few rules are different where we think it makes more sense, and we have lots and lots of adjustable parameters to make customizing games possible. Freeciv has been implemented completely independently of Civilization; you do not need to own Civilization to play Freeciv. Although the graphics are not as polished as those in Civilization II, the rules are very complete, and our multiplayer and networking code is excellent. Web site: ========= Freeciv's web site is here: http://www.freeciv.org/ We invite you to visit. You can get the latest Freeciv news, releases and patches, find out about the Freeciv mailing lists, and see the Freeciv metaserver, which records games being played around the world. License: ======== Freeciv is released under the GNU General Public Licence. In short, you may copy this program (including source) freely, but see the COPYING file for full details. Compiling and installing: ========================= Please read the INSTALL file carefully for instructions on how to get Freeciv compiled and installed on your machine. Starting a new game: =================== Freeciv is actually two programs, a server and a client. When a game is in progress, there will be one server program running, and as many client programs as there are human players. The server does not need X, but the clients do. NOTE: The following examples assume that Freeciv has been installed on your system, and that the directory containing the "civclient" and "civserver" programs is in your PATH. If Freeciv is not installed, then you may want to use the "civ" and "ser" programs, which can be found in the top Freeciv directory. They are used in exactly the same fashion as "civclient" and "civserver". Running Freeciv involves starting the server, then the client(s) and AI(s), then telling the server to start the game. Here are the steps: Server: To start the server: % civserver Or for a list of command-line options: % civserver --help Once the server is started, a prompt will appear: Get a list of the available commands with 'help'. > and, you can see that list by using the help command: > help Available commands: (P=player, M=message, F=file, L=level, T=topic, O=option) ----------------------------------------------------------------------------- ai P - toggles AI on player cmdlevel - see current command levels cmdlevel L - sets command access level to L for all players cmdlevel L new - sets command access level to L for new connections cmdlevel L P - sets command access level to L for player P create P - creates an AI player cut P - cut connection to player easy - All AI players will be easy easy P - AI player will be easy explain - help on server options explain T - help on a particular server option hard - All AI players will be hard hard P - AI player will be hard help - this help text list - list players meta M - Set meta-server infoline to M metaserver A - Game are reported to address A nometa - Close connection to the metaserver normal - All AI players will be normal normal P - AI player will be normal quit - quit game and shutdown server remove P - fully remove player from game save F - save game as file F score - show current score set - set options show - list current server options show O - list current value of server option O start - start game Abbreviations are allowed. > If you like, you can use the 'set' command to set any of the various server options for the game. You can get a list of the options with the 'show' command, and explanations with the 'explain' command. For example: > explain xsize Option: xsize Description: Map width in squares. Status: changeable Value: 80, Minimum: 40, Default: 80, Maximum: 200 > set xsize 100 > set ysize 80 This will make the map twice as large as the default of 80x50. Client: Now all the human players should join, by running the Freeciv client: % civclient This assumes the server is running on the same machine. If not, you can either specify it on the command use with the '--server' option, or enter it into the first dialog box once the client starts. For example, suppose the server is running on a different machine called 'neptune'. Then players would join with a command like: % civclient --server neptune If you're the only human player, then only one client needs to be started. In standard Unix fashion you can start the client "in the background" by appending an ampersand: % civclient & Another option for the client you may like to try is the '--tiles' option, which can be used to select different "tilesets" (that is, different graphics for the map terrain, units, and so on). The distribution comes with two tilesets, called "trident" and "engels". In this release the trident tileset is the default (in some previous releases the engels tileset was the default). The two tilesets have quite different graphic style, so you may find you prefer one over the other. The trident tiles are smaller, so may be better if you have a small display. But try them both and decide for yourself -- to use the engels tileset start the client with: % civclient --tiles engels Other tilesets may be available from the ftp site. Clients can be authorized to issue server commands. To allow them to use informational commands only, type at the server prompt > cmdlevel info Clients can now use '/help', '/list', '/show settlers', etc. Computer Players: There are two ways to create AI players. The first is to set the number of players (human and AI) by setting the 'aifill' server option. For example: > set aifill 7 After using the 'start' server command to start the game, any players which aren't controlled by humans will be AI players. For the above, if two human players had joined, 5 AI players would be created. The second way is to explicitly create an AI with the 'create' server command. For example: > create HumanKiller This will create an AI-controlled player called HumanKiller. AI players are assigned to tribes after all human players have chosen their tribes, but you can choose a particular tribe for an AI player by using the normal name for that nation's leader. For example, to play against AI-controlled Romans, use this server command: > create Caesar Note, this is just a preference: If no other human player chooses to play the Romans, then this AI will. Server: When everybody has joined (use the "list" command to see who's in), start the game with the "start" command: > start And the game is on! Announcing the game: ==================== If you do not want to limit your opponents to local friends or AI players, visit the Freeciv metaserver: http://meta.freeciv.org/metaserver It is a list of Freeciv servers. To make your own server announce itself there, start civserver with the '--meta' option, or just '-m' for short. Caveats: 1) Due to the inclusion of new features, different client and server versions are often incompatible. Not all incompatibilities can be caught and reported properly. One example is a 1.8.0 (or later) client connecting to a 1.7.2 server: the client appears to connect, but it never gets any messages from the server. 2) If the Metaserver button in the connection dialog doesn't work, check if your ISP uses a mandatory WWW proxy and make civclient use it through the $http_proxy environment variable. For instance, if the proxy is proxy.myisp.com port 8888, set $http_proxy to http://proxy.myisp.com:8888/ before starting the client. 3) Sometimes there are no games on the metaserver. This may be partly because the metaserver has changed hosts, and previous Freeciv versions do not know about the new address. Also, games no longer show up on the metaserver by default, instead people have to deliberately use '--meta'. If you want to play a game on the metaserver, are there are none there, try starting one yourself! Playing the game: ================= The game may be saved the game at any time using the 'save' server command, like so: > save mygame The Freeciv client works pretty much as you would expect from a multiplayer civilization game. That is, the players move at the same time. There's a turn timeout value, which is by default set to 0 seconds (no timeout). The server operator can alter this value at any time with the 'set' command. Have a look at the online help system. All three mouse-buttons are used, and documented in the help. Players can push the 'Return' key to announce the end of their turn, or just push the 'Turn done' button. Use the 'Players' dialog to see who has announced their end of turn, and who you're waiting for. (Hey feller, are you asleep or what?? ;). Use the input line at the bottom of the window for broadcasting messages to other players. You can send a message to an individual player (say, 'peter') like so: peter: move that armor away *NOW*! The server is smart enough to perform "name completion", so if you had typed "pet:", it will pick find a player name that matches the part of the name you typed. On newer servers (version 1.8.1 or later, or some development 1.8.0 versions) you can issue server commands from the client input line: /list /set settlers 4 /save mygame.sav The server operator will probably let you issue informational commands only. This is partly because allowing clients to use all server commands has security implications; consider if a player tried: /save /etc/passwd Of course the server should not be running with superuser privileges in any case, to reduce this sort of risk. If you're just starting, and would like to get an idea of a strategy, have a look in the Freeciv playing HOWTO, contained in the HOWTOPLAY file. For lots more information about the client, the server, and the concepts and rules of the game, see the Freeciv manual, available at the web pages at: http://www.freeciv.org/manual/main.html Ending the game: ================ There are three ways in which a game can end: 1) Only one race is left. 2) The final year is reached. 3) A player builds and launches a spaceship, which reaches Alpha Centauri first. A score-table will be shown in all cases. Hint: The server operator can set the final year while the game is still going by changing the 'end-year' option. This is nice when the winner is obvious, but you don't want to play through the boring 'cleanup phase'. Restoring games: ================ You can restore a saved game by using the '-f' server option, eg: % civserver -f oursave2001.sav Now the players can rejoin the game: % civclient -n Alexander Notice how the player-name is specified with the -n option. It's vital that the player uses the same name as they had when the game was running, if they're to be allowed in. The game may then be restarted with the 'start' command as usual. Server autostart: ================= When the maximum number of players have connected, the server auto-starts. The maximum number of players can be set with the 'maxplayers' option. Log messages: ============= Both the client and server print messages known as "log messages". There are four categories of log messages: "fatal", "normal", "verbose", and "debug". By default, fatal and normal messages are printed to standard output where the client or server was started. You can direct log messages to a file instead of the screen with the "--log filename", or "-l filename" command line options. You can change the level of log messages displayed with "--debug level" or "-d level" (or instead "-de level" for the Xaw client, since "-d" is ambiguous between "-debug" and "-display"), where "level" is 0, 1, or 2. 0 means show fatal messages only, 1 means show fatal and normal messages (the default), and 2 means show all fatal, normal, and verbose messages. If you compiled with DEBUG defined (an easy way to do this is to configure with --enable-debug), then you can get debug level messages by setting the level to 3. Also, it is possible to control debug level messages (but not other messages) on a per-file and per-line basis. To do this use "--debug 3:str1:str2" (as many strings as you like, separated by colons) and any filenames which match those strings as a substring will have debug log messages turned on, and all other debug messages will be suppressed. To control lines, use: "--debug 3:str1,min,max" and for files which match str1 only debug messages within the specified minimum and maximum lines will be printed. Only one set of (min,max) can be applied to each file. Example: % civserver -l my.log -d 2 This sends all server log messages to file "my.log", including verbose level messages. Example: % civclient --debug 0 This suppresses all non-fatal client log messages. Example: % civserver -d 3:log:civserver,120,500:autoattack This turns on all fatal, normal and verbose messages for the server, and debug level messages for some specified modules. Note that "log" will match "gamelog.c" as well as "log.c". For "civserver.c", only debug messages between lines 120 and 500 will be printed. This example only works if the server was compiled with DEBUG. Bugs: ===== Found a bug? We really want to hear from you so we can fix it. See the file BUGS, for a list of known bugs in this release, and information about reporting new bugs. Mailing lists: ============== We maintain three mailing lists. One is for users of Freeciv, one is for developers of Freeciv, and the last is to notify developers of changes to the Freeciv source code. The lists are called "freeciv", "freeciv-dev", and "freeciv-cvs". They are all public lists. To send an email to the lists, address it to: (For Freeciv users) or (For bug reports, and for Freeciv developers) To subscribe, send mail to , with the single word "subscribe", followed by the name of the list. (Put this in the body of the email message, leaving the email subject line blank.) Example: To subscribe to the "freeciv" mailing list, send the line "subscribe freeciv" to . New Releases: ============= We make a major new release of Freeciv available about every three months. Check the Freeciv website from time to time to see if there's a newer version!! And finally: ============ Have fun and give 'em hell! -- The Freeciv team.