Function: bb-place-ball

bb-place-ball is a byte-compiled function defined in blackbox.el.gz.

Signature

(bb-place-ball X Y)

Source Code

;; Defined in /usr/src/emacs/lisp/play/blackbox.el.gz
(defun bb-place-ball (x y)
  (let ((coord (cons x y)))
    (cond
     ((member coord bb-balls-placed)
      (setq bb-balls-placed (delete coord bb-balls-placed))
      (bb-update-board "-"))
     (t
      (setq bb-balls-placed (cons coord bb-balls-placed))
      (bb-update-board (propertize "O" 'help-echo "Placed ball"))))))