The current version of tkMOO-light is derived from countless small
experiments with UI design and other projects that have been going
on for the past few years. The client itself contains much less
than half of all the code developed.
This page brings together a few of the better documented experiments
and offers an insight into why the client has turned out the way
it is today, and what forms it might take in the future.
A simple map is generated from the MOO's database showing links
between rooms and the approximate spacial relationship between the
rooms. Small icons represent the terrain in each room and coloured
dots represent each user's location and how busy they are. The
client user is able to click on areas of the map in order to navigate
In-Browser chat clients
Sun Microsystems have developed a Tcl plugin for the Netscape and
Microsoft webbrowsers. It's possible to use this plugin to create
a fully featured chat client.
I'm interested in knowing how to produce simple and useful graphical
representations of a room, or of objects in that room. In this
simple experiment the graphical representation of rooms of my home
MOO are coded in a private data structure (no data is held on the
objects themselves) which is interrogated each time I enter the
room. The client receives messages from the MOO detailing where
to place images on a backdrop and what to do if the user tries
clicking on any of the images.
Cold Text plugin
There's an experimental plugin which allows Cold servers to output
modified ctext hypertext in a form that the client can turn into
clickable links. The Cold Text plugin
renders clickable links on the screen in blue, and the cursor shape
will change when the pointer moves over it. At at the same time a
command to be sent to the server is displayed in the client's
status-bar message window. Clicking on mouse button 1 will activate
the link, sending the command to the server.
the Cold Dark's ctext system <telnet://ice.cold.org:1138>,
has been modified to support the
format, for special objects and the built-in help system.
To see it all in action you'll need to install the plugin and
connect to tCD. The
@set me:content-type command will
list the set of available CML formats. Use
text/tkmoo to tell the server to send your client Cold Text.
XMCP/1.1 for Cold Servers
Work is in progress to port the available XMCP/1.1 applications to
the Cold Server platform. The Client->Server
protocol is unchanged and the applications behave in exactly the
same was as their MOO equivalents when accessed with compliant
clients. The different configuration of the ColdCore.db has required
changes in the in-db implementation of some of the applications.
This code has been developed for the ColdCore.3a5 database available
from http://www.cold.org/, it
has not been tested on Cold databases developed elsewhere. Some
of the interface commands are present on the user object and these
should probably be moved elsewhere. Cold lacks MOO's Feature Object
facility and people are stil debating what shape if any this should
take. ColdCore has a user-interface parent which would be a good
location for the user interface commands in the meantime.