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|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Play against gnuchess!
;;
;; $Revision$
(require 'chess-engine)
(require 'chess-common)
(defgroup chess-gnuchess nil
"The publically available chess engine 'gnuchess'."
:group 'chess-engine)
(defcustom chess-gnuchess-path (executable-find "gnuchess")
"The path to the gnuchess executable."
:type 'file
:group 'chess-gnuchess)
(defvar chess-gnuchess-bad-board nil)
(make-variable-buffer-local 'chess-gnuchess-bad-board)
(defvar chess-gnuchess-regexp-alist
(list
(cons (concat "My move is : \\(" chess-algebraic-regexp "\\)")
(function
(lambda ()
(funcall chess-engine-response-handler 'move
(chess-engine-convert-algebraic (match-string 1) t)))))
(cons "Illegal move:"
(function
(lambda ()
(chess-error 'illegal-move))))
(cons "Board is wrong!"
(function
(lambda ()
;; gnuchess didn't like the given position, which
;; means it won't play against it unless we send a
;; "go" after the user's move
(setq chess-gnuchess-bad-board t))))))
(defun chess-gnuchess-handler (event &rest args)
(cond
((eq event 'initialize)
(let ((proc (chess-common-handler 'initialize "gnuchess")))
(process-send-string proc "nopost\n")
proc))
((eq event 'setup-pos)
(let ((file (chess-with-temp-file
(insert (chess-pos-to-string (car args)) ?\n))))
(chess-engine-send nil (format "epdload %s\n" file))))
((eq event 'setup-game)
(let ((file (chess-with-temp-file
(insert (chess-game-to-string (car args)) ?\n))))
(chess-engine-send nil (format "pgnload %s\n" file))))
((eq event 'pass)
(chess-engine-send nil (concat (if (chess-pos-side-to-move
(chess-engine-position nil))
"white" "black")
"\n"))
(chess-engine-send nil "go\n")
(setq chess-gnuchess-bad-board nil))
((eq event 'move)
(chess-engine-send nil (concat (chess-ply-to-algebraic (car args))
"\n"))
(when chess-gnuchess-bad-board
(chess-engine-send nil "go\n")
(setq chess-gnuchess-bad-board nil)))
(t
(apply 'chess-common-handler event args))))
(provide 'chess-gnuchess)
;;; chess-gnuchess.el ends here
|
