Hi,

Here a Lite-C Demo of a DNA Creature Simulation,
that you can watch a population of "stick" animals evolve,
trying to move on the ground.




DNACreature.zip


DNA Creature


How to use it:

-start
-let the sim run for some time, as it needs time to evolve (there is not end to the sim)
-use SPACE to switch between slow and fast simulation
-use the mouse and the W,A,S,D keys to move the camera

This program simulates a virtual creature over several generations
using genetic programming, mutation, crossover etc.

The results are not as potent as I thought in the beginning,
using a "genetic programming" code.
There is actually an interpreter build in, that can run
a program, to controll the creature.
Though the creatues only use the very basic commands after some time.

A better approach will be later to switch to neural nets.


Some Facts:

-100 creatures per population
-genetic mutation
-sorting out the fittest creature for the next population
-genetic crossover for a part of the population
-physics engine
-creatures also have sensort for leg-contact with the ground, and legmovement


Feel free to experiement in the code by changing some variables

very very interesting, and i saw something like this somewhere.

hmmm damocles, do you happen to be the damocles that made xspire ai, and wasteland, and left like a year ago? or are you a new one


if you are the same, welcome back, if not welcome

very nice to see how the creature "grows" ^^ ... I the much of these evolution apps on youtube. Very interesting! Is there a documentation or a simple Tutorial how to implement and use genetic code?

yes -> ai thread -> ai-junkie.com

Cool demo, but quite slow evolution
how long did the programming take you?

Which ability determains the fitness? the ability to move into a certain direction? to move in any direction?
How far they move?

EDIT: Why have you started a new account? what happend to your old one?

Interesting demo. But how long does it take to have an "advanced" evolution in this demo? I run it for about 10 minutes and the creature did only some steps forward.

Hi,

The programming did not take so long, maybe 4 to 5 days.
I made the core program some time ago.
The most time took to learn what the physics engine needs,
and the test and tuning of variables.

The fittnessfunction gives fittness for the distance moved from spawning point, and also for moving the legs (make the creature
look more active, its more optical)


The evolution is so slow, as every creature is spawned and tested for a few seconds in the physics world.
Also: 100 creatures are tested every populations (it might be too many).


The sim has actually some problems, as the genetic program that
I create is a bit too fancy, and the evolution
keeps stuck in a local minima.
Try to let it run for one hour.
(dont keep it int to the slow mode (SPACE), as this then takes longer to evolve)

I will work later on a different approach, by using
evolved neural nets.
--

For my old Account I dont remember the password..

my creature jumps and stuff all the time after 20 minutes, lol, i think its a spider... with some frog capabilities. lol

Anyway i think you could add 2 entities.. and then the 2 entities creatures cross over and share their code and then more legs are added, etc etc..

really interesting. the evolution of movement reminded me somehow of this demo