[ODE] Virtual Creature Sample Code here

[Ted Milker]

Could you describe what the proper output of this program is?  All I get
is a stick figure that hops and hops :)  I'm not real familiar with GA
and evolution of virtual creatures.

On Tue, Apr 15, 2003 at 04:59:15PM -0600, Rob Leclerc wrote:
> I think I fixed all the bugs in this one. (Memory leak, and problems
> reloading saved individuals). It has some decent documentation and

I don't think the mem leak is fixed:

97  of  0    fitness:1.1
98  of  0    fitness:1.1
99  of  0    fitness:1.1
Best Found: Gen[0] Fit[-0.6]


Program received signal SIGSEGV, Segmentation fault.
0x0804a9cd in crossOver(NeuralNetwork*, NeuralNetwork*, NeuralNetwork*)
(p1=0x8096178, p2=0x80964d8,
    child=0x80967b8) at main.cpp:191
191          {    child->weights[i] = p1->weights[i];
(gdb) print p1->weightSize
$1 = -2061584302

I didn't have to change anything around the NeuralNetwork classes to get
this to compile under Linux, so I don't think it's anything I
introduced.

> *This was programmed in VC6 and has not been tested on other platforms.

I had to fix a bunch of out of scope warnings with for() loops using
variables that haven't been declared(or were declared in a previous
for() loop).

I also had to fix the first sort() call in getNextGeneration to compile
under g++ 3.2:

     sort(annVector.begin()+(annVector.size() / 2), annVector.end(), NNCompare<NeuralNetwork>());

g++ 3.2 doesn't have an itoa() call, so I used:

     string generationNum;
     ostringstream out(generationNum);

     out << currentGeneration;
     filename += out.str();
     filename += ".dat";

I think that was all the major issues I had with getting it to compile,
of course now, I'd have to locate the mem leak to get past one
generation(I think that's what it is).  I'll post if I find anything.

Ted