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|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Play against an opponent over the network
;;
;; $Revision$
(require 'chess-engine)
(require 'chess-fen)
(require 'chess-algebraic)
(defvar chess-network-regexp-alist
(list
(cons (concat chess-algebraic-regexp "$")
(function
(lambda ()
(funcall chess-engine-response-handler 'move
(chess-engine-convert-algebraic (match-string 0))))))
(cons "chess match\\(\\s-+\\(.+\\)\\)?$"
(function
(lambda ()
(funcall chess-engine-response-handler 'match
(match-string 2)))))
(cons "fen\\s-+\\(.+\\)"
(function
(lambda ()
(funcall chess-engine-response-handler 'setup-pos
(chess-engine-convert-fen (match-string 1))))))
(cons "pgn\\s-+\\(.+\\)"
(function
(lambda ()
(funcall chess-engine-response-handler 'setup-game
(chess-engine-convert-pgn (match-string 1))))))
(cons "pass$"
(function
(lambda ()
(funcall chess-engine-response-handler 'pass))))
(cons "quit$"
(function
(lambda ()
(funcall chess-engine-response-handler 'quit))))
(cons "resign$"
(function
(lambda ()
(funcall chess-engine-response-handler 'resign))))
(cons "draw$"
(function
(lambda ()
(funcall chess-engine-response-handler 'draw))))
(cons "abort$"
(function
(lambda ()
(funcall chess-engine-response-handler 'abort))))
(cons "takeback\\s-+\\([0-9]+\\)$"
(function
(lambda ()
(funcall chess-engine-response-handler 'undo
(string-to-int (match-string 1))))))
(cons "accept\\(\\s-+\\(.+\\)\\)?$"
(function
(lambda ()
(funcall chess-engine-response-handler 'accept
(match-string 2)))))
(cons "decline$"
(function
(lambda ()
(funcall chess-engine-response-handler 'decline))))
(cons "retract$"
(function
(lambda ()
(funcall chess-engine-response-handler 'retract))))))
(defun chess-network-handler (event &rest args)
"Initialize the network chess engine."
(cond
((eq event 'initialize)
(let ((which (read-char "Are you the c)lient or s)erver? "))
proc)
(message "Starting network client/server...")
(setq proc (if (eq which ?s)
(start-process "*chess-network*"
(current-buffer) "/usr/bin/nc"
"-l" "-p" (read-string "Port: "))
(open-network-stream "*chess-network*" (current-buffer)
(read-string "Host: ")
(read-string "Port: "))))
(if (eq which ?s)
(message "Now waiting for your opponent to connect...")
(chess-network-handler 'match)
(message "You have connected; pass now or make your move."))
proc))
((eq event 'shutdown)
(chess-engine-send nil "quit\n"))
((eq event 'setup-pos)
(chess-engine-send nil (format "fen %s\n"
(chess-pos-to-string (car args)))))
((eq event 'setup-game)
(chess-engine-send nil (format "pgn %s\n"
(chess-game-to-string (car args)))))
((eq event 'pass)
(chess-engine-send nil "pass\n"))
((eq event 'busy)
(chess-engine-send nil "playing\n"))
((eq event 'match)
(setq chess-engine-pending-offer 'match)
(chess-engine-send nil (format "chess match %s\n" chess-full-name)))
((eq event 'resign)
(chess-engine-send nil "resign\n")
(chess-game-set-data chess-engine-game 'active nil))
((eq event 'draw)
(if chess-engine-pending-offer
(chess-engine-command nil 'retract))
(setq chess-engine-pending-offer 'draw)
(chess-engine-send nil "draw\n"))
((eq event 'abort)
(if chess-engine-pending-offer
(chess-engine-command nil 'retract))
(setq chess-engine-pending-offer 'abort)
(chess-engine-send nil "abort\n"))
((eq event 'undo)
(if chess-engine-pending-offer
(chess-engine-command nil 'retract))
(setq chess-engine-pending-offer 'undo
chess-engine-pending-arg (car args))
(chess-engine-send nil (format "takeback %d\n" (car args))))
((eq event 'accept)
(chess-engine-send nil "accept\n"))
((eq event 'decline)
(chess-engine-send nil "decline\n"))
((eq event 'retract)
(chess-engine-send nil "retract\n"))
((eq event 'move)
(chess-engine-send nil (concat (chess-ply-to-algebraic (car args)) "\n"))
(if (chess-game-over-p chess-engine-game)
(chess-game-set-data chess-engine-game 'active nil)))))
(provide 'chess-network)
;;; chess-network.el ends here
|
