/*
 * Fitchneal server v 0.1
 * 9/22/06 Kenrick Mock
 * If you find any errors send them to kenrick@uaa.alaska.edu
 * 
 * You are also welcome to use the source code and extend this program
 * any way you see fit. Maybe you'd like to add mouse input for
 * the human player?  If you make a significant contribution please
 * send it to me and I'll post it for all to use.
 * 
 * This program implements a server to play the game of Fitchneal.
 * The rules it uses are:
 * 
 *   Defender wins if king reaches the edge
 *   King captured if surrounded on all sides by attackers,
 *     or surrounded on three sides by attackers and the throne
 *   King cannot be used to capture attacker's pieces
 *   The king is the only piece that can land on the throne
 *   All pieces can move over the throne
 * 
 * If network play is selected then the network player should
 * connect to the IP of this machine on port 8112.
 * The first network player to connect will be the attacker
 * and the second the defender.  The server will send back a
 * String of "attacker" or "defender" to tell the client which
 * player it is.  A simple way to test the network interface is
 * to simply telnet to the server, e.g. from a command line:
 *    telnet 137.229.156.33 8112
 * and then type moves into the telnet window.
 * 
 * Network clients send moves in the form  X1 Y1 X2 Y2
 * followed by a newline or carriage return.   The server will send the opponent's
 * move to the client in the same format, but followed by a carriage return
 * and line feed.
 * 
 * It is the responsibility of the client to ensure that it makes only
 * valid moves and to keep track of the board state itself.  Any invalid
 * move by a network client results in immediate disqualification.
 * 
 */