to compile: make
to run: GP


The following files correspond to the simulator logic:
tree.c
lisp_parser.c
visual.c
tracking.c
sim_execution.c
main_sim.c


The following files accomplish the genetic evolution:
tree.c
gp.c
main_linux.c


Notes:
1) As far as I can tell, lisp_parser.c seems redundant, but I haven't removed it yet.
2) In tree.c, 2 data structures are used, Node and Tree which are very equivalent to each other.
   It is possible to remove one of them, but it is not done so yet.
   Doing so would require many changes.
3) Evolution strategy explained in main_linux.c
4) Usage of WorldGen: 	WorldGen <file.wld> <size of maze> <distance from ball>
			e.g. WorldGen area.wld 2000 900


--------------------
Yves Hwang, Thomas Braunl, 2004
