This is an adaptation/ripoff of the Monty Karel robot world written by Joseph
Bergin and colleagues in Python (see http://csis.pace.edu/~bergin/MontyKarel).
In our case, it is a world server written in MzScheme that can be interacted
with by up to four independent agents over a TCP connection.

   readme.txt          -- this file
   rules.txt           -- how the world works
   figs/               -- a subdirectory of bitmap images
   install.txt         -- how to get the world running
   server.scm          -- the complete implementation in Scheme
   protocol.txt        -- instructions for creating agents
   wall-follower.scm   -- a sample agent programmed in Scheme

SUMMARY: the programmed agents are imagined to be squirrels that need to move
around on a two-dimensional grid and gather acorns.  Squirrels have both
effectors (to do things in the world) and sensors (to gather information).
Everything is known to the squirrels at the outset except for the locations of
the acorns and some wall obstacles.  This can be thought of as a game where
the goal is to be the first squirrel to gather 5 acorns.  (A "duplicate"
version would start different agents in the same initial world to see who best
copes with the distribution of acorns and walls.)



