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NAME
     maze - an automated X11 demo repeatedly creating and solving
     a random maze

SYNOPSIS
     maze  [-display  host:display.screen]  [-foreground   color]
     [-background  color]  [-window]  [-root] [-install] [-visual
     visual] [-grid-size pixels] [-live-color color] [-dead-color
     color]  [-solve-delay usecs] [-pre-delay usecs] [-post-delay
     usecs] [-generator integer] [-max-length integer]  [-bridge]
     [-no-bridge]

DESCRIPTION
     The maze program creates a "random" maze and then solves  it
     with graphical feedback.

OPTIONS
     maze accepts the following options:

     -window Draw  on  a  newly-created  window.   This  is   the
             default.

     -root   Draw on the root window.

     -install
             Install a private colormap for the window.

     -visual visual
             Specify which visual to use.  Legal values  are  the
             name of a visual class, or the id number (decimal or
             hex) of a specific visual.

     -grid-size pixels
             The size of each  block  of  the  maze,  in  pixels;
             default is 0, meaning pick a random grid size.

     -live-color color
             The color of the path.

     -dead-color color
             The color of the failed path (it  is  also  stippled
             with a 50% pattern.)

     -skip-color color
             The maze solver will choose to not go down a path if
             it  can "see" (in a straight line) that it is a dead
             end.  This is the color to use for  paths  that  are
             skipped for this reason.

     -surround-color color
             If the maze solver ever completely encloses an  area
             within  the maze, then it knows that the exit is not
             in there (and in fact  the  interior  of  that  area
             might  not  even  be  reachable.)   It will mark out
             those cells using this color.

     -solve-delay integer
             Delay (in microseconds) between  each  step  of  the
             solution  path.   Default  5000,  or  about  1/200th
             second.

     -pre-delay integer
             Delay (in microseconds) between  generating  a  maze
             and  starting  to  solve  it.   Default  2000000  (2
             seconds.)

     -post-delay integer
             Delay (in microseconds) after  solving  a  maze  and
             before  generating  a  new  one.  Default 4000000 (4
             seconds.)

     -generator num
             Sets the algorithm that will be used to generate the
             mazes.  The default is -1, which randomly selects an
             algorithm for each maze that is generated. Generator
             0  is  the original one, and works by walking around
             randomly until we hit a  place  we've  been  before,
             then  backtracking  and trying a new direction some-
             where. Generator 1 picks a random spot in the  maze,
             then  draws a straight wall from that spot in a ran-
             dom direction until it hits another wall  (and  con-
             tinues  until  the maze is complete). Generator 2 is
             based on sets. Initially all cells are in  different
             sets.  Then  two neighboring cells are chosen and if
             they are in different sets, their sets  are  joined.
             If  they  were  in  the  same  set,  a wall is built
             between them. This continues until the maze is  com-
             plete.

             All  generators  generate  mazes  with   a   certain
             'characteristic'. See if you can spot them!

     -max-length num
             Controls the maximum length of walls drawn in one go
             by generator 1.

     -bridge

     -no-bridge
             Controls whether or not a 'bridge' will appear  over
             the logo.

     Clicking the mouse in the maze window controls it.

     LeftButton      Clears the window and restarts maze.

     MiddleButton    Pause or unpause the program.

     RightButton     Exit.

BUGS
     Expose events force a restart of maze.

     Mouse actions are based on "raw"  values  (Button1,  Button2
     and Button3) instead of using the pointer map.

ENVIRONMENT
     DISPLAY to get the default host and display number.

     XENVIRONMENT
             to get the name of a resource  file  that  overrides
             the  global resources stored in the RESOURCE_MANAGER
             property.

SEE ALSO
     X(1), xscreensaver(1)

COPYRIGHT
     Copyright O 1988 by Sun Microsystems,  Inc.  Mountain  View,
     CA.

     All Rights Reserved

     Permission  to  use,  copy,  modify,  and  distribute   this
     software  and  its documentation for any purpose and without
     fee is hereby granted, provided  that  the  above  copyright
     notice  appear  in  all  copies and that both that copyright
     notice and this permission notice appear in supporting docu-
     mentation,  and  that the names of Sun or MIT not be used in
     advertising or publicity pertaining to distribution  of  the
     software  without specific prior written permission. Sun and
     M.I.T.  make no representations  about  the  suitability  of
     this  software  for  any  purpose.  It  is  provided "as is"
     without any express or implied warranty.

     SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO  THIS  SOFTWARE,
     INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
     NESS FOR A PARTICULAR PURPOSE. IN  NO  EVENT  SHALL  SUN  BE
     LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
     ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,  DATA  OR
     PROFITS,  WHETHER  IN  AN  ACTION OF CONTRACT, NEGLIGENCE OR
     OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
     THE USE OR PERFORMANCE OF THIS SOFTWARE.

AUTHOR(s)
     Zack Weinberg [ Smarter maze-solver ] zack@rabi.phys.columbia.edu
     Johannes Keukelaar [ Generators 1 and 2 ] johannes@nada.kth.se
       Royal Institute of Technology, Stockholm, Sweden
     Jim Randell    [ XScreenSaver version ] jmr@mddjmr.fc.hp.com
       HPLabs, Bristol
     Richard Hess   [ X11 extensions ]       {...}!uunet!cimshop!rhess
       Consilium, Mountain View, CA
     Dave Lemke     [ X11 version ]          lemke@sun.COM
       Sun MicroSystems, Mountain View, CA
     Martin Weiss   [ SunView version ]
       Sun MicroSystems, Mountain View, CA

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