A 128-cell evolving 1D world.

Loki is a 1D (or 2D) grid world holding agents that gain energy based on how well adapted they are to their local environment. When they have sufficient energy they spawn an offspring that occupies a neighbouring cell. The offspring inherits, with mutation, their parent's colour and genetic keys. Their keys are used to unlock energy from the envorinment.

Agents unlock energy through a simple Lock and Key mechanism. Each agent has three unique key values and each grid location has three lock values. The compaibility between an agent's keys and their location's locks determines the energy they extract at each time step. The environment's locks can slow evolve over time.

An agent spwans a mutated child into a neighbouring location once its energy reaches a repoduction threshold. The parent's energy is shared equally between the two. Colour mutation is minimal so related cells can be identified by similarity of colour.

Go to Loki for more details.

Runs nicely on a Raspberry Pi, using Python3 and PyGame.

I think you just need to run install numpy and pygame, i.e. run the following:

pip3 install numpy
pip3 install pygame

$ python loki1Dv.py

Once running, keyboard controls are

• C - cycle Colour mode
• T - cycle Texture mode
• R - cycle Energy extraction Rate
• E - toggle energy Etraction mode mean/max
• S - toggle Show lock landscape on/off Button SHIM buttons are the same.

Can display in a variety of ways:

• In a window on the Desktop
• Fullscreen from the Desktop
• Fullscreen from command line (X server) under sudo
• As streaming web server
• Frame mode for creating videos
• Fullscreen on boot-up

Some settings can be changed on the fly through a keyboard or the Button SHIM for keyboard-free control):

• Colour rendering mode: RGB, inverse-RGB, genetic-key values as RGB
• Texture rendering mode: Just colour, modulated by energy, modulated by inverse energy
• Energy extraction rate: Cycles from slow to fast
• Energy extration method: Based on best key performance or mean of all keys
• Render on top line the environment lock values as RGB

At the moment your options are to either run

$ python lock1Dv.py -h

and take a look at all command line arguments. For example, providing a height defines a 2D world.

Alternatively take a look through the code, e.g. at get_config and init as that's where a lot of other stuff is defined that is not accessible through the command line args.

Edit crontab:

$ sudo crontab -e

and append the line

@reboot sh <your_path_to>/launch_loki.sh > /tmp/loki.log 2>&1

Edit launch_loki.sh to use your favourite command line args.

$ pip3 install flask
$ python loki_server.py