A zone program inspired by the old DOS game
Save the file zone-tunnels.el to disk and add the directory containing it to load-path using a command in your .emacs file like:
(add-to-list 'load-path "~/.emacs.d/")
The above line assumes that you've placed the file into the Emacs directory '.emacs.d'.
Start the package with:
(require 'zone-tunnels)
If you have Marmalade added as a repository to your Emacs, you can just install zone-tunnels with
M-x package-install zone-tunnels RET
Set zone-pgm-tunnels as one of the zone programs
(setq zone-programs
[zone-pgm-tunnels])
and activate zoning by specifying a delay
(zone-when-idle 30)
Alternatively you can run zone-tunnels directly
(zone-tunnels)