This is protocol version 0.22 for the Galax game.

	All commands consist of four letters and a space-separated
	list of arguments. Each command is terminated by the sequence
	\r\n (carriage return, newline).

	Most command arguments are integers. Planet id's are unsigned
	and start at 0. Player id's start at 1 (0 as a planet owner
	indicates an independent planet). Time, measured in years,
	is specified in floating-point numbers with at least one
	decimal (so, for example, the first turn starts with YEAR 0.0).
	X and Y coordinates are unsigned and start at 0. (0, 0) is
	the upper left corner of the playfield (this does not really
	matter, of course). y is the row and x is the column.

	Game id's start at 1. If a client JOINs with game id=0, the server
	starts a new game.
	
	Protocol version is an ASCII string, and protocol versions may
	be lexically compared (e.g. "1.0a" > "1.0" and "1.15" > "1.0"). 
	<server name> and <client name> are strings which may contain
	spaces, because they are always the last arguments on a line.
	<player name> may not contain spaces. The strings are not
	delimited in any way.

Initialization:

	The client makes a connection to TCP port 42529.
	The server identifies itself with the command
-->	GSRV <protocol version> <server name>
	The client answers with
<--	GCLT <protocol version> <client name>
-->	CLOK
	Now the server lists the games you can join into.
-->	GAME <id> <n. of players> <player names>
	(repeated...)
-->	SLCT
	The client must now choose a game. If id=0, a new game is created.
<--	JOIN <game id> <player name>
	The server returns the game id (important if a new game was created).
-->	JNOK <game id> <player id> <player name>
	The server lists the players when a new player joins the game.
	Note that a player may be listed several times.
-->	GPLR <id> <name> <client>
	(repeated...)
	The first player (id 1) starts the game
<--	PLAY
	The server lists data about the playfield and the game
-->	GFLD <xsize> <ysize> <n. of planets> <n. of players> <protocol version>

Game:
	The game consists of two phases, Move phase and Battle phase.
	It starts with Move phase.

Move phase:

	The server lists the state of all planets. Currently unknown
	values for <ships> and <indust> are shown as -1. <id> is an
	index value starting from 0. The home planet for player x
	has the id (x-1).
-->	PLNT <id> <x> <y> <owner> <ships> <indust>
	(repeat...)
-->	YEAR <year>
	After this the client may issue commands. The possible commands
	are MOVE and DONE.
<--	MOVE <from> <to> <n. of ships>	
-->	MVOK <fromid> <ships left> <ETA>
	(repeat...)
<--	DONE

	Now the battle phase starts. The server crunches through the
	events in order and issues the commands BATT, FORT and KILL.
	A BATT is followed by one or more ATTK commands, which show
	the stages of combat, and finally a BWIN declares the winner
	of the battle. There is some redundant data in the arguments -
	feel free to throw some away. It's just to avoid storing much
	data on the client side. In ATTK commands, who=1 means that
	the attacker is charging, and who=0 is the defender. Normally,
	the defender takes the first turn, but a surprise attack 
	(issurprise=1) gives the attacker the first turn. <howmany>
	gives the number of attacking ships, and as each attacking
	ship destroys one ship, it also shows how many ships were
	destroyed.

Battle phase:

-->	BATT <year> <planet id> <attacker> <defender> <issurprise> <att. ships> <def. ships>
-->	ATTK <who> <howmany> <ashipsleft> <dshipsleft>
	(repeated...)
-->	BWIN <who> <winnerid> <loserid> <shipsleft> <planetid>

-->	FORT <year> <planet id> <owner> <total ships> <fortifying ships>
	
	Issued when a player is dead, i.e. has neither ships nor planets.
-->	KILL <player id>

	Declares the winner and ends the game.
-->	WINN <player id>


The possible errors are:
	ERRP <reason>
		The player is not allowed to do that. E.g. the second
		player tries to start the game, or a player tries to
		send ships from someone else's planet.
	ERRC <reason>
		Command syntax error.
	ERRM <reason>
		Error (not syntax) in a MOVE command. E.g. not enough
		ships on planet or illegal planet id's.
	ERRJ <reason>
		Cannot join. The server is busy.