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967 lines
32 KiB
EmacsLisp
967 lines
32 KiB
EmacsLisp
;;; zone.el --- idle display hacks -*- lexical-binding: t -*-
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;; Copyright (C) 2000-2026 Free Software Foundation, Inc.
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;; Author: Victor Zandy <zandy@cs.wisc.edu>
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;; Maintainer: emacs-devel@gnu.org
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;; Keywords: games
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;; Created: June 6, 1998
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Don't zone out in front of Emacs! Try M-x zone.
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;; If it eventually irritates you, try M-x zone-leave-me-alone.
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;; Bored by the zone pyrotechnics? Write your own! Add it to
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;; `zone-programs'. See `zone-call' for higher-ordered zoning.
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;; THANKS: Christopher Mayer, Scott Flinchbaugh,
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;; Rachel Kalmar, Max Froumentin, Juri Linkov,
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;; Luigi Panzeri, John Paul Wallington.
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;;; Code:
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(defgroup zone nil
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"Zone related settings."
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:prefix "zone-"
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:group 'play)
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(defconst zone-buffer-name "*zone*"
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"Name of the zone buffer that holds zoned text.")
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(defvar zone-timer nil
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"The timer we use to decide when to zone out, or nil if none.")
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(defvar zone-timeout nil
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"Seconds to timeout the zoning.
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If nil, don't interrupt for about 1^26 seconds.")
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;; Vector of functions that zone out. `zone' will execute one of
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;; these functions, randomly chosen. The chosen function is invoked
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;; in the *zone* buffer, which contains the text of the selected
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;; window. If the function loops, it *must* periodically check and
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;; halt if `input-pending-p' is t (because quitting is disabled when
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;; Emacs idle timers are run).
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(defvar zone-programs [
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zone-pgm-jitter
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zone-pgm-putz-with-case
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zone-pgm-dissolve
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;; zone-pgm-explode
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zone-pgm-whack-chars
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zone-pgm-rotate
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zone-pgm-rotate-LR-lockstep
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zone-pgm-rotate-RL-lockstep
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zone-pgm-rotate-LR-variable
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zone-pgm-rotate-RL-variable
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zone-pgm-drip
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zone-pgm-drip-fretfully
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zone-pgm-five-oclock-swan-dive
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zone-pgm-martini-swan-dive
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zone-pgm-rat-race
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zone-pgm-paragraph-spaz
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zone-pgm-stress
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zone-pgm-stress-destress
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zone-pgm-random-life
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])
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(defun zone-add-program (pgm)
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"Add a zone program PGM to `zone-programs'."
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(unless (seq-contains-p zone-programs pgm #'eq)
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(setq zone-programs (vconcat zone-programs (list pgm)))))
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(defun zone-remove-program (pgm)
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"Remove a zone program PGM from `zone-programs'.
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If PGM is a symbol, remove it from the `zone-programs'; if it is a
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string, assume it is a regular expression that will remove programs
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whose name matches the pattern."
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(setq zone-programs
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(vector (seq-remove
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(lambda (v)
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(cond
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((symbolp pgm) (eq pgm v))
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((stringp pgm) (string-match-p pgm (symbol-name v)))
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(t nil)))
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zone-programs))))
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(defmacro zone-orig (&rest body)
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"Perform BODY in the original source buffer of the zone buffer."
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`(with-current-buffer (get 'zone 'orig-buffer)
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,@body))
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(defmacro zone-hiding-mode-line (&rest body)
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"Perform BODY without a window mode line."
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;; This formerly worked by temporarily altering face `mode-line',
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;; which did not even work right, it seems.
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`(let (mode-line-format)
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,@body))
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(defun zone-call (program &optional timeout)
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"Call PROGRAM in a zoned way.
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If PROGRAM is a function, call it, interrupting after the amount
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of time in seconds specified by optional arg TIMEOUT, or `zone-timeout'
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if unspecified, q.v.
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PROGRAM can also be a list of elements, which are interpreted like so:
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If the element is a function or a list of a function and a number,
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apply `zone-call' recursively."
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(cond ((functionp program)
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(with-timeout ((or timeout zone-timeout (ash 1 26)))
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(funcall program)))
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((listp program)
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(mapcar (lambda (elem)
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(cond ((functionp elem) (zone-call elem))
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((and (listp elem)
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(functionp (car elem))
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(numberp (cadr elem)))
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(apply 'zone-call elem))
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(t (error "Bad `zone-call' elem: %S" elem))))
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program))))
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;;;; Customization flags to control what is zoned
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(defcustom zone-all-frames nil
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"When non-nil, zone in all open frames.
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Displays the `*zone*' buffer in all windows in all frames."
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:type 'boolean)
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(defcustom zone-all-windows-in-frame nil
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"When non-nil, zone in all windows in the current frame."
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:type 'boolean)
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(defcustom zone-delete-other-windows nil
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"When non-nil, make the frame a single window before zoning.
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The original windows and their content will be restored when zoning
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completes."
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:type 'boolean)
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;;;; Hooks to detect the start and finish of zone activity
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(defvar zone-time-elapsed-while-zoning nil
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"In the `zone-finish-hook', will report the time spent zoning.")
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(defvar zone-start-hook nil
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"Hook at the start of zoning.")
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(defvar zone-finish-hook nil
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"Hook at the finish of Zoning.
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When this is invoked, `zone-time-elapsed-while-zoning' will be properly set.")
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;;;; Save frame configuration so it can be restored when we finish zoning
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(defvar zone-frame-configuration-alist nil
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"An Alist of frames and their cursor and window configuration.
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Before zone starts using a frame, it saves the configuration before it
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touches anything. At the end of zoning, the frame configuration is
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restored.
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The Alist key is the frame object, then value is the cons cell
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containing the window configuration and cursor type.")
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(defun zone--save-frame-configuration (frm &optional reset)
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"Save the frame FRM's configuration.
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When RESET is non-nil, the `zone-frame-configuration-alist' will contain
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this frame only, otherwise the frame's configuration will be appended to
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the Alist."
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(when reset
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(setq zone-frame-configuration-alist nil))
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(when (frame-visible-p frm)
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(push (cons frm
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(cons
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(current-window-configuration frm)
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(frame-parameter frm 'cursor-type)))
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zone-frame-configuration-alist)))
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(defun zone--restore-frame-configuration (frm)
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"Restore the frame FRM's configuration from the Alist."
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(when-let* ((config (alist-get frm zone-frame-configuration-alist)))
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(with-selected-frame frm
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(set-window-configuration (car config))
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(modify-frame-parameters frm (list (cons 'cursor-type (cdr config)))))))
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(defun zone--restore-all-frame-configurations ()
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"Restore all of the saved frame configurations."
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(mapc #'zone--restore-frame-configuration
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(mapcar #'car zone-frame-configuration-alist))
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(setq zone-frame-configuration-alist nil)
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(when (get-buffer zone-buffer-name)
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(kill-buffer zone-buffer-name)))
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;;;; Here we zone...
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;;;###autoload
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(defun zone (&optional pgm)
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"Zone out, completely.
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With a prefix argument the user is prompted for a program to run.
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When called from Lisp the optional argument PGM can be used to
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run a specific program. The program must be a member of
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`zone-programs'."
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(interactive
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(and current-prefix-arg
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(let ((choice (completing-read
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"Program: "
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(mapcar
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(lambda (prog)
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(substring (symbol-name prog) 9))
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zone-programs)
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nil t)))
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(list (intern (concat "zone-pgm-" choice))))))
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(unless pgm
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(setq pgm (aref zone-programs (random (length zone-programs)))))
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(run-hooks 'zone-start-hook)
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(let* ((start-time (current-time))
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(zone-again nil)
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(src-winbuf (zone--choose-window-and-buffer))
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(src-win (car src-winbuf))
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(src-buf (cdr src-winbuf))
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(src-frm (window-frame src-win)))
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(setq zone-frame-configuration-alist nil)
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(unwind-protect
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(progn
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(zone--save-frame-configuration src-frm)
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(zone--build-zone-buffer src-win src-buf)
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(zone--prepare-frames src-frm)
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(condition-case zone-err
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(progn
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(message "Zoning... (%s)" pgm)
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(garbage-collect)
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;; If some input is pending, zone says "sorry", which
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;; isn't nice; this might happen e.g. when they invoke the
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;; game by clicking the menu bar. So discard any pending
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;; input before zoning out.
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(if (input-pending-p)
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(discard-input))
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(zone-call pgm)
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(message "Zoning...sorry"))
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(error
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(message "%s error: %S" (or pgm 'zone) zone-err)
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(zone--apologize-for-failing pgm)
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(setq zone-again t))
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(quit
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(ding)
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(message "Zoning...sorry"))))
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(zone--restore-all-frame-configurations))
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(when (and zone-again
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(not (input-pending-p)))
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(zone))
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(setq zone-time-elapsed-while-zoning (time-since start-time)))
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(run-hooks 'zone-finish-hook))
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;;;; Identify the current window and the best buffer to use as zone source
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(defun zone--buffer-empty-p (buffer)
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"Is BUFFER empty?"
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(zerop (buffer-size buffer)))
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(defun zone--buffer-encrypted-p (buffer)
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"Is BUFFER encrypted with `epa'?"
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(require 'epa-hook)
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(when-let* ((name (buffer-file-name buffer)))
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(epa-file-name-p name)))
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(defun zone--choose-window-and-buffer ()
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"Choose the current window and an acceptable buffer.
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Check each buffer to determine whether it is suitable for zoning,
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starting with the buffer in the current window. For example, encrypted
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files, certain source modules, or command sessions may be inappropriate
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if they might expose privileged or secret information."
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(cons
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(selected-window)
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(or (seq-find #'zone--buffer-zoneable-p
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(buffer-list (selected-frame)))
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;; only create *scratch* if we need one as fall back
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(get-scratch-buffer-create))))
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(defvar zone-ignored-buffers
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'( "\\`\s" ;; Hidden buffers
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zone--buffer-empty-p ;; Empty buffers (not very interesting)
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special-mode ;; Special/internal buffers
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image-mode ;; image buffers
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authinfo-mode ;; encrypted buffers
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zone--buffer-encrypted-p
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"\\`\\*scratch\\*\\'" ;; zone will fallback to scratch , but
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;; ignore it in the first pass
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)
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"Buffers that satisfy any of these rules are ignored as a zone buffer.
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Each entry in the list must be one of the following:
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+ MODE: all derived modes of the MODE are considered unacceptable,
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+ REGEXP: a buffer name that matches the REGEXP is not acceptable, and
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+ PRED: a buffer that satisfies the PRED, such that it returns a non-nil
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value when invoked as a function with the buffer supplied as a
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parameter, is considered not acceptable.")
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(defun zone--buffer-zoneable-p (buffer)
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"Is BUFFER suitable for zoning?
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For example, buffers containing passwords, critical source files, and
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command line transcripts might not be appropriate for a zone buffer.
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To be acceptable, the buffer must NOT satisfy any of the entries on
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`zone-ignored-buffers'."
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(not (any
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(lambda (ign)
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(cond
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((stringp ign)
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(string-match-p ign (buffer-name buffer)))
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((and (symbolp ign)
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(string-suffix-p "-mode" (symbol-name ign)))
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(with-current-buffer buffer
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(derived-mode-p ign)))
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((functionp ign)
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(funcall ign buffer))))
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zone-ignored-buffers)))
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;;;; Prepare the *zone* buffer with a copy of the source buffer
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(defun zone--build-zone-buffer (win buf)
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"Construct the *zone* buffer in window WIN, based on buffer BUF.
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Remove other windows if `zone-delete-other-windows' is non-nil. The
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selected buffer is then placed in the window. If only a portion of the
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buffer is visible, try to recenter it to expose more."
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;; Make us single window if desired
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(when zone-delete-other-windows
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(delete-other-windows win))
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;; Switch in the source buffer into the window
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(unless (eq (current-buffer) buf)
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(set-window-buffer win buf nil))
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;; Try to scroll the buffer into the window
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(unless (< (window-end) (point-max))
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(let ((scroll-margin 0))
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(recenter -1)))
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(redisplay)
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;; Create the zone buffer and populate it
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(let* ((win-end (window-end win t))
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(win-beg (window-start))
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(win-pt (window-point))
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(new-pt (1+ (- win-pt win-beg)))
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(win-ht (line-pixel-height)))
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(with-current-buffer (get-buffer-create zone-buffer-name)
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(put 'zone 'orig-buffer buf)
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(erase-buffer)
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(setq-local mode-name "Zone"
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buffer-undo-list t
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truncate-lines t
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scroll-margin 0
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scroll-conservatively 1000
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scroll-up-aggressively 0
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scroll-down-aggressively 0
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show-trailing-whitespace nil
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tab-width (buffer-local-value 'tab-width buf)
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line-spacing (buffer-local-value 'line-spacing buf))
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;; Grab the visible portion of the source buffer
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(insert-buffer-substring buf win-beg win-end)
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;; Remove read-only property so zone can play with all of it
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(let ((inhibit-read-only t)
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(beg (point-min))
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(end (point-max)))
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(remove-text-properties beg end '(read-only nil))
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;; Adjust line height with the settings from the original buffer
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(add-text-properties beg end `(line-height ,win-ht))
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;; Get rid of tab characters and position the window
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(untabify beg end)))
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;; Move the zone buffer to the window
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(set-window-buffer win zone-buffer-name nil)
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;; Position the zone buffer in the window
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;; Position point and then fix the top.
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;; These with scroll settings above fix
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;; the content boundaries in the window
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(set-window-point win new-pt)
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(set-window-start win (point-min))
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(redisplay)))
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;;;; Configure frames and windows based on customization flags
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(defun zone--prepare-frames (prim-frm)
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"Reorganize frames and their windows to show the zone out.
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This is based on the settings of three customization flags:
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+ `zone-all-frames',
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+ `zone-all-windows-in-frame', and
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+ `zone-delete-other-windows'
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These have been partially performed on the primary frame PRIM-FRM.
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Based on the settings, the other frames may be similarly adjusted."
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(let* ((z (get-buffer zone-buffer-name))
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(prim-win (frame-selected-window prim-frm))
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(f prim-frm)
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(no-cursor '((cursor-type . (bar . 0))))
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w1)
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;; Handle the primary frame
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(select-frame f t)
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(setq w1 (frame-selected-window f))
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;; Put zone in current or every window
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(dolist (w (if zone-all-windows-in-frame
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(window-list f 'no-minibuf w1)
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(list w1)))
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(set-window-buffer w z nil))
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(modify-frame-parameters f no-cursor)
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;; Handle the remaining frames
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(dolist (f (visible-frame-list))
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(unless (eq f prim-frm)
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(select-frame f t)
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(setq w1 (frame-selected-window f))
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;; Single window frame
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(when zone-delete-other-windows
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(delete-other-windows))
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;; Put zone in current or every window
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(dolist (w (if zone-all-windows-in-frame
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(window-list f 'no-minibuf w1)
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(list w1)))
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(set-window-buffer w z nil))
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(modify-frame-parameters f no-cursor)
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(set-frame-selected-window f w1 t)))
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(select-frame prim-frm)
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(set-frame-selected-window prim-frm prim-win t)))
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;;;; If the zone program fails, apologize and try again
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(defvar zone-apologize-seconds 60 ;; 1 minute
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"Number of seconds to apologize for failing.
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This value is broken into 6 second cycles to allow for two messages
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displayed for 3 seconds each in every cycle.")
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(defun zone--apologize-for-failing (pgm)
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"Apologize for PGM failing for a minute."
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(let ((cycle 0)
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(n-cycles (floor zone-apologize-seconds 6)))
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(while (and (not (input-pending-p))
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(<= (incf cycle) n-cycles))
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(let ((message-log-max (= cycle 1))) ;; Log message first time only
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(message "We were zoning when we wrote %s..." pgm)
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(sit-for 3)
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(message "...here's hoping we didn't hose your buffer!")
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(sit-for 3)))))
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;;;; Zone when idle, or not.
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(defun zone-when-idle (secs)
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"Zone out when Emacs has been idle for SECS seconds."
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(interactive "nHow long before I start zoning (seconds): ")
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(if (timerp zone-timer)
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(cancel-timer zone-timer))
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(setq zone-timer nil)
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(or (<= secs 0)
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(setq zone-timer (run-with-idle-timer secs t 'zone))))
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(defun zone-leave-me-alone ()
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"Don't zone out when Emacs is idle."
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(interactive)
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(if (timerp zone-timer)
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(cancel-timer zone-timer))
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(setq zone-timer nil)
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(message "I won't zone out any more"))
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;;;; jittering
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(defun zone-shift-up ()
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(let* ((b (point))
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(e (progn (forward-line 1) (point)))
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(s (buffer-substring b e)))
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(delete-region b e)
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(goto-char (point-max))
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(insert s)))
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(defun zone-shift-down ()
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(goto-char (point-max))
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|
(let* ((b (point))
|
|
(e (progn (forward-line -1) (point)))
|
|
(s (buffer-substring b e)))
|
|
(delete-region b e)
|
|
(goto-char (point-min))
|
|
(insert s)))
|
|
|
|
(defun zone-shift-left ()
|
|
(let (s)
|
|
(while (not (eobp))
|
|
(unless (eolp)
|
|
(setq s (buffer-substring (point) (1+ (point))))
|
|
(delete-char 1)
|
|
(end-of-line)
|
|
(insert s))
|
|
(ignore-errors (forward-char 1)))))
|
|
|
|
(defun zone-shift-right ()
|
|
(goto-char (point-max))
|
|
(let (s)
|
|
(while (not (bobp))
|
|
(unless (bolp)
|
|
(setq s (buffer-substring (1- (point)) (point)))
|
|
(delete-char -1)
|
|
(beginning-of-line)
|
|
(insert s))
|
|
(end-of-line 0))))
|
|
|
|
(defun zone-pgm-jitter ()
|
|
(let ((ops [
|
|
zone-shift-left
|
|
zone-shift-right
|
|
zone-shift-down
|
|
zone-shift-up
|
|
]))
|
|
(goto-char (point-min))
|
|
(while (not (input-pending-p))
|
|
(funcall (elt ops (random (length ops))))
|
|
(goto-char (point-min))
|
|
(sit-for 0.01))))
|
|
|
|
|
|
;;;; whacking chars
|
|
|
|
(defun zone-pgm-whack-chars ()
|
|
(let ((tbl (copy-sequence (get 'zone-pgm-whack-chars 'wc-tbl))))
|
|
(while (not (input-pending-p))
|
|
(let ((i 48))
|
|
(while (< i 122)
|
|
(aset tbl i (+ 48 (random (- 123 48))))
|
|
(setq i (1+ i)))
|
|
(translate-region (point-min) (point-max) tbl)
|
|
(sit-for 0.002)))))
|
|
|
|
(put 'zone-pgm-whack-chars 'wc-tbl
|
|
(let ((tbl (make-string 128 ?x))
|
|
(i 0))
|
|
(while (< i 128)
|
|
(aset tbl i i)
|
|
(setq i (1+ i)))
|
|
tbl))
|
|
|
|
;;;; dissolving
|
|
|
|
(defun zone-remove-text ()
|
|
(let ((working t))
|
|
(while working
|
|
(setq working nil)
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(while (not (eobp))
|
|
(if (looking-at "[^(){}\n\t ]")
|
|
(let ((n (random 5)))
|
|
(if (not (= n 0))
|
|
(progn
|
|
(setq working t)
|
|
(forward-char 1))
|
|
(delete-char 1)
|
|
(insert " ")))
|
|
(forward-char 1))))
|
|
(sit-for 0.002))))
|
|
|
|
(defun zone-pgm-dissolve ()
|
|
(zone-remove-text)
|
|
(zone-pgm-jitter))
|
|
|
|
|
|
;;;; exploding
|
|
|
|
(defun zone-exploding-remove ()
|
|
(let ((i 0))
|
|
(while (< i 5)
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(while (not (eobp))
|
|
(if (looking-at "[^*\n\t ]")
|
|
(let ((n (random 5)))
|
|
(if (not (= n 0))
|
|
(forward-char 1))
|
|
(insert " ")))
|
|
(forward-char 1)))
|
|
(setq i (1+ i))
|
|
(sit-for 0.002)))
|
|
(zone-pgm-jitter))
|
|
|
|
(defun zone-pgm-explode ()
|
|
(zone-exploding-remove)
|
|
(zone-pgm-jitter))
|
|
|
|
|
|
;;;; putzing with case
|
|
|
|
;; Faster than `zone-pgm-putz-with-case', but not as good: all
|
|
;; instances of the same letter have the same case, which produces a
|
|
;; less interesting effect than you might imagine.
|
|
(defun zone-pgm-2nd-putz-with-case ()
|
|
(let ((tbl (make-string 128 ?x))
|
|
(i 0))
|
|
(while (< i 128)
|
|
(aset tbl i i)
|
|
(setq i (1+ i)))
|
|
(while (not (input-pending-p))
|
|
(setq i ?a)
|
|
(while (<= i ?z)
|
|
(aset tbl i
|
|
(if (zerop (random 5))
|
|
(upcase i)
|
|
(downcase i)))
|
|
(setq i (+ i (1+ (random 5)))))
|
|
(setq i ?A)
|
|
(while (<= i ?z)
|
|
(aset tbl i
|
|
(if (zerop (random 5))
|
|
(downcase i)
|
|
(upcase i)))
|
|
(setq i (+ i (1+ (random 5)))))
|
|
(translate-region (point-min) (point-max) tbl)
|
|
(sit-for 0.002))))
|
|
|
|
(defun zone-pgm-putz-with-case ()
|
|
(goto-char (point-min))
|
|
(while (not (input-pending-p))
|
|
(let ((np (+ 2 (random 5)))
|
|
(pm (point-max)))
|
|
(while (< np pm)
|
|
(funcall (if (zerop (random 2)) 'upcase-region
|
|
'downcase-region) (1- np) np)
|
|
(setq np (+ np (1+ (random 5))))))
|
|
(goto-char (point-min))
|
|
(sit-for 0.002)))
|
|
|
|
|
|
;;;; rotating
|
|
|
|
(defun zone-line-specs ()
|
|
(let ((ok t)
|
|
ret)
|
|
(save-excursion
|
|
(goto-char (window-start))
|
|
(while (and ok (< (point) (window-end)))
|
|
(when (looking-at "[\t ]*\\([^\n]+\\)")
|
|
(setq ret (cons (cons (match-beginning 1) (match-end 1)) ret)))
|
|
(setq ok (zerop (forward-line 1)))))
|
|
ret))
|
|
|
|
(defun zone-pgm-rotate (&optional random-style)
|
|
(let* ((specs (apply
|
|
'vector
|
|
(let (res)
|
|
(mapc (lambda (ent)
|
|
(let* ((beg (car ent))
|
|
(end (cdr ent))
|
|
(amt (if random-style
|
|
(funcall random-style)
|
|
(- (random 7) 3))))
|
|
(when (< (- end (abs amt)) beg)
|
|
(setq amt (random (- end beg))))
|
|
(unless (= 0 amt)
|
|
(setq res
|
|
(cons
|
|
(vector amt beg (- end (abs amt)))
|
|
res)))))
|
|
(zone-line-specs))
|
|
res)))
|
|
(n (length specs))
|
|
amt aamt cut paste txt i ent)
|
|
(while (not (input-pending-p))
|
|
(setq i 0)
|
|
(while (< i n)
|
|
(setq ent (aref specs i))
|
|
(setq amt (aref ent 0) aamt (abs amt))
|
|
(if (> 0 amt)
|
|
(setq cut 1 paste 2)
|
|
(setq cut 2 paste 1))
|
|
(goto-char (aref ent cut))
|
|
(setq aamt (min aamt (- (point-max) (point))))
|
|
(setq txt (buffer-substring (point) (+ (point) aamt)))
|
|
(delete-char aamt)
|
|
(goto-char (aref ent paste))
|
|
(insert txt)
|
|
(setq i (1+ i)))
|
|
(sit-for 0.04))))
|
|
|
|
(defun zone-pgm-rotate-LR-lockstep ()
|
|
(zone-pgm-rotate (lambda () 1)))
|
|
|
|
(defun zone-pgm-rotate-RL-lockstep ()
|
|
(zone-pgm-rotate (lambda () -1)))
|
|
|
|
(defun zone-pgm-rotate-LR-variable ()
|
|
(zone-pgm-rotate (lambda () (1+ (random 3)))))
|
|
|
|
(defun zone-pgm-rotate-RL-variable ()
|
|
(zone-pgm-rotate (lambda () (1- (- (random 3))))))
|
|
|
|
|
|
;;;; dripping
|
|
|
|
(defsubst zone-cpos (pos)
|
|
(buffer-substring pos (1+ pos)))
|
|
|
|
(defsubst zone-replace-char (count del-count char-as-string new-value)
|
|
(delete-char (or del-count (- count)))
|
|
(let ((s (apply #'propertize (string new-value)
|
|
(text-properties-at 0 char-as-string))))
|
|
(dotimes (_ count) (insert s))))
|
|
|
|
(defsubst zone-park/sit-for (pos seconds)
|
|
(let ((p (point)))
|
|
(goto-char pos)
|
|
(prog1 (sit-for seconds)
|
|
(goto-char p))))
|
|
|
|
(defun zone-fret (wbeg pos)
|
|
(let* ((case-fold-search nil)
|
|
(c-string (zone-cpos pos))
|
|
(cw-ceil (ceiling (char-width (aref c-string 0))))
|
|
(hmm (cond
|
|
((string-match "[a-z]" c-string) (upcase c-string))
|
|
((string-match "[A-Z]" c-string) (downcase c-string))
|
|
(t (propertize " " 'display `(space :width ,cw-ceil)))))
|
|
(wait 0.5))
|
|
(dotimes (i 20)
|
|
(goto-char pos)
|
|
(delete-char 1)
|
|
(insert (if (evenp i) hmm c-string))
|
|
(zone-park/sit-for wbeg (setq wait (* wait 0.8))))
|
|
(delete-char -1) (insert c-string)))
|
|
|
|
(defun zone-fill-out-screen (width height)
|
|
(let ((start (window-start))
|
|
(line (make-string width 32)))
|
|
(goto-char start)
|
|
;; fill out rectangular ws block
|
|
(while (progn (end-of-line)
|
|
(let ((cc (current-column)))
|
|
(if (< cc width)
|
|
(insert (substring line cc))
|
|
(delete-char (- width cc)))
|
|
(cond ((eobp) (insert "\n") nil)
|
|
(t (forward-char 1) t)))))
|
|
;; pad ws past bottom of screen
|
|
(let ((nl (- height (count-lines (point-min) (point)))))
|
|
(when (> nl 0)
|
|
(setq line (concat line "\n"))
|
|
(dotimes (_ nl)
|
|
(insert line))))
|
|
(goto-char start)
|
|
(recenter 0)
|
|
(sit-for 0)))
|
|
|
|
(defun zone-fall-through-ws (c wbeg wend)
|
|
(let* ((cw-ceil (ceiling (char-width (aref c 0))))
|
|
(spaces (make-string cw-ceil 32))
|
|
(col (current-column))
|
|
(wait 0.15)
|
|
newpos fall-p)
|
|
(while (when (save-excursion
|
|
(and (zerop (forward-line 1))
|
|
(progn
|
|
(forward-char col)
|
|
(= col (current-column)))
|
|
(setq newpos (point))
|
|
(string= spaces (buffer-substring-no-properties
|
|
newpos (+ newpos cw-ceil)))
|
|
(setq newpos (+ newpos (1- cw-ceil)))))
|
|
(setq fall-p t)
|
|
(delete-char 1)
|
|
(insert spaces)
|
|
(goto-char newpos)
|
|
(when (< (point) wend)
|
|
(delete-char cw-ceil)
|
|
(insert c)
|
|
(forward-char -1)
|
|
(zone-park/sit-for wbeg (setq wait (* wait 0.8))))))
|
|
fall-p))
|
|
|
|
(defun zone-pgm-drip (&optional fret-p pancake-p)
|
|
(let* ((ww (1- (window-width)))
|
|
(wh (window-height))
|
|
(mc 0) ; miss count
|
|
(total (* ww wh))
|
|
(fall-p nil)
|
|
wbeg wend c)
|
|
(zone-fill-out-screen ww wh)
|
|
(setq wbeg (window-start)
|
|
wend (window-end))
|
|
(catch 'done
|
|
(while (not (input-pending-p))
|
|
(setq mc 0 wend (window-end))
|
|
;; select non-ws character, but don't miss too much
|
|
(goto-char (+ wbeg (random (- wend wbeg))))
|
|
(while (looking-at "[ \n\f]")
|
|
(if (= total (setq mc (1+ mc)))
|
|
(throw 'done 'sel)
|
|
(goto-char (+ wbeg (random (- wend wbeg))))))
|
|
;; character animation sequence
|
|
(let ((p (point)))
|
|
(when fret-p (zone-fret wbeg p))
|
|
(goto-char p)
|
|
(setq c (zone-cpos p)
|
|
fall-p (zone-fall-through-ws c wbeg wend)))
|
|
;; assuming current-column has not changed...
|
|
(when (and pancake-p
|
|
fall-p
|
|
(< (count-lines (point-min) (point))
|
|
wh))
|
|
(let ((cw (ceiling (char-width (aref c 0)))))
|
|
(zone-replace-char cw 1 c ?@) (zone-park/sit-for wbeg 0.137)
|
|
(zone-replace-char cw nil c ?*) (zone-park/sit-for wbeg 0.137)
|
|
(zone-replace-char cw nil c ?_)))))))
|
|
|
|
(defun zone-pgm-drip-fretfully ()
|
|
(zone-pgm-drip t))
|
|
|
|
(defun zone-pgm-five-oclock-swan-dive ()
|
|
(zone-pgm-drip nil t))
|
|
|
|
(defun zone-pgm-martini-swan-dive ()
|
|
(zone-pgm-drip t t))
|
|
|
|
(defun zone-pgm-rat-race ()
|
|
(while (not (input-pending-p))
|
|
(zone-call '((zone-pgm-rotate 10)
|
|
(zone-pgm-drip-fretfully 15)
|
|
(zone-pgm-drip 10)
|
|
((lambda ()
|
|
(goto-char (point-min))
|
|
(while (re-search-forward " +$" nil t)
|
|
(delete-region (match-beginning 0) (match-end 0))))
|
|
5)))))
|
|
|
|
|
|
;;;; paragraph spazzing (for textish modes)
|
|
|
|
(defun zone-pgm-paragraph-spaz ()
|
|
(if (memq (zone-orig major-mode)
|
|
;; there should be a better way to distinguish textish modes
|
|
'(text-mode texinfo-mode fundamental-mode))
|
|
(let ((fill-column fill-column)
|
|
(fc-min fill-column)
|
|
(fc-max fill-column)
|
|
(max-fc (1- (frame-width))))
|
|
(while (sit-for 0.1)
|
|
(fill-paragraph 1)
|
|
(setq fill-column (+ fill-column (- (random 5) 2)))
|
|
(when (< fill-column fc-min)
|
|
(setq fc-min fill-column))
|
|
(when (> fill-column max-fc)
|
|
(setq fill-column max-fc))
|
|
(when (> fill-column fc-max)
|
|
(setq fc-max fill-column))))
|
|
(message "Zoning... (zone-pgm-rotate)")
|
|
(zone-pgm-rotate)))
|
|
|
|
|
|
;;;; stressing and destressing
|
|
|
|
(defun zone-pgm-stress ()
|
|
(goto-char (point-min))
|
|
(let ((ok t)
|
|
lines)
|
|
(while (and ok (< (point) (point-max)))
|
|
(let ((p (point)))
|
|
(setq ok (zerop (forward-line 1))
|
|
lines (cons (buffer-substring p (point)) lines))))
|
|
(sit-for 5)
|
|
(zone-hiding-mode-line
|
|
(let ((message-log-max nil)
|
|
(msg "Zoning... (zone-pgm-stress)"))
|
|
(while (not (string= msg ""))
|
|
(message (setq msg (substring msg 1)))
|
|
(sit-for 0.05)))
|
|
(while (not (input-pending-p))
|
|
(when (< 50 (random 100))
|
|
(goto-char (point-max))
|
|
(forward-line -1)
|
|
(delete-region (point) (line-beginning-position 2))
|
|
(goto-char (point-min))
|
|
(insert (seq-random-elt lines)))
|
|
(let ((message-log-max nil))
|
|
(message (concat (make-string (random (- (frame-width) 5)) ? ) "grrr")))
|
|
(sit-for 0.1)))))
|
|
|
|
(defun zone-pgm-stress-destress ()
|
|
(zone-call 'zone-pgm-stress 25)
|
|
(zone-hiding-mode-line
|
|
(sit-for 3)
|
|
(erase-buffer)
|
|
(sit-for 3)
|
|
(insert-buffer-substring "*Messages*")
|
|
(message "")
|
|
(goto-char (point-max))
|
|
(recenter -1)
|
|
(sit-for 3)
|
|
(delete-region (point-min) (window-start))
|
|
(message "hey why stress out anyway?")
|
|
(zone-call '((zone-pgm-rotate 30)
|
|
(zone-pgm-whack-chars 10)
|
|
zone-pgm-drip))))
|
|
|
|
|
|
;;;; the lyfe so short the craft so long to lerne --chaucer
|
|
|
|
(defvar zone-pgm-random-life-wait nil
|
|
"Seconds to wait between successive `life' generations.
|
|
If nil, `zone-pgm-random-life' chooses a value from 0-3 (inclusive).")
|
|
|
|
(defvar life-patterns) ; from life.el
|
|
|
|
(defun zone-pgm-random-life ()
|
|
(require 'life)
|
|
(zone-fill-out-screen (1- (window-width)) (1- (window-height)))
|
|
(let ((top (progn (goto-char (window-start)) (forward-line 7) (point)))
|
|
(bot (progn (goto-char (window-end)) (forward-line -7) (point)))
|
|
(rtc (- (frame-width) 11))
|
|
(min (window-start))
|
|
(max (1- (window-end)))
|
|
s c col)
|
|
(delete-region max (point-max))
|
|
(while (and (progn (goto-char min) (sit-for 0.05))
|
|
(progn (goto-char (+ min (random max)))
|
|
(or (progn (skip-chars-forward " @\n" max)
|
|
(not (= max (point))))
|
|
(unless (or (= 0 (skip-chars-backward " @\n" min))
|
|
(= min (point)))
|
|
(forward-char -1)
|
|
t))))
|
|
(unless (or (eolp) (eobp))
|
|
(setq s (zone-cpos (point))
|
|
c (aref s 0))
|
|
(zone-replace-char
|
|
(char-width c)
|
|
1 s (cond ((or (> top (point))
|
|
(< bot (point))
|
|
(or (> 11 (setq col (current-column)))
|
|
(< rtc col)))
|
|
32)
|
|
((and (<= ?a c) (>= ?z c)) (+ c (- ?A ?a)))
|
|
((and (<= ?A c) (>= ?Z c)) ?*)
|
|
(t ?@)))))
|
|
(sit-for 3)
|
|
(setq col nil)
|
|
(goto-char bot)
|
|
(while (< top (point))
|
|
(setq c (point))
|
|
(move-to-column 9)
|
|
(setq col (cons (buffer-substring (point) c) col))
|
|
(end-of-line 0)
|
|
(forward-char -10))
|
|
(let ((life-patterns (vector
|
|
(if (and col (search-forward "@" max t))
|
|
(cons (make-string (length (car col)) 32) col)
|
|
(list (mapconcat 'identity
|
|
(make-list (/ (- rtc 11) 15)
|
|
(make-string 5 ?@))
|
|
(make-string 10 32)))))))
|
|
(life (or zone-pgm-random-life-wait (random 4)))
|
|
(kill-buffer nil))))
|
|
|
|
|
|
;;;;;;;;;;;;;;;
|
|
(provide 'zone)
|
|
|
|
;;; zone.el ends here
|