[ODE] Virtual Creature Sample Code here

[Rob Leclerc]

That is strange that you are getting a constant fitness of "1". To me,
this says that your creature is not moving. What did you compile/run
this on? I have not tested it on anything else other than windows and I
am using MSVC6 to compile. Are you using double or single precision? I
used double, and that may cause some problems if you are using single
precision.

It seems to work fine for me. I did get a crash of some sorts after
generation 104 though, which I am finding a bit strange because memory
allocation is only done once and I ran Rational's Purify on this and
found no extra memory leaks. I am going to try to run this in debug mode
to see if I can track it down the problem -- unfortunately, debug mode
seems to be extra safe sometimes and this problem might not show up for
me.

Best
RDL


-----Original Message-----
From: ode-admin@q12.org [mailto:ode-admin@q12.org] On Behalf Of Ted
Milker
Sent: Wednesday, April 16, 2003 7:19 AM
To: ode@q12.org
Subject: Re: [ODE] Virtual Creature Sample Code here

On Tue, Apr 15, 2003 at 09:48:26PM -0600, Rob Leclerc wrote:
> Looks like this might stall if you let it run long enough. The problem
> is in the compare template used for sorting. You can change it to the
> following code, this should work. (Fingers crossed). Will update the
zip
> tomorrow.

Well, that seems to fix the crashing problems but is this really right:

96  of  5    fitness:1.1
97  of  5    fitness:1.1
98  of  5    fitness:1.1
99  of  5    fitness:1.1
Best Found: Gen[0] Fit[1.1]

That's what I see after every single round(I'm up to 7 now, just started
running it).  I guess I'll let it run all day and see what happens, but
it just seems strange that none of the numbers are changing, except the
counters.

Ted
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