There are two sets of modifications here ---

1)  I made another set of worlds where the food is sparser (see the
papers), and

2)  Edmund is in c++, and c++ requires that "main" be in c++ as well.

The c++ main lives in ../em 

"master" is the same whether it is talking to the c++ slave or the c
slave.  I call the c++ slave slavejb in the makefile, you will
probably want to keep that in, even though it's not quite as neat as
Tyrrell's moving directory structure for keeping the name uniformly
"slave".  Anyway, it is easier to run 6000 tests these days since
computers are faster :-)

With respect to swapping the harsher for the easier worlds, you have
to look at the file env_spec.h 

I made my changes conspicuous by using the modern // comment -- you
have to egrep for "// " though, because Tyrrell did quite a lot of
adjacent "*//*" comments.  Anyway, there are only three of them,
the three definitions of food.


----------old message you probably don't care about-----------
Because I'm lazy and there's loads of space here, I'm keeping
varying versions of the executables around.  They look like

[asm-name].{master,slave}.{g,} 

where .g indicates it runs graphics.

Joanna, Oct 97

