CRITTERDING

NAME

crittering - Evolving Artificial Life

SYNOPSIS

critterding [ OPTION ]...

DESCRIPTION

This manual page was written for the Debian distribution because critterding does not have a manual page. It provides information taken from "critterding --help" output and project homepage.

Critterding is a "Petri dish" universe in 3D that demonstrates evolving artificial life. Critters start out with completely random brains and bodies, but will automatically start evolving into something with much better survival skills.

Critters are informed by sensors:
- if their head touches food unit.
- their head touches another critter
- if they are able to procreate
- about their energy state
- about their age
- about the state of their joints
- what the world looks like ( RGBA vision)

Critters can make use of the following motor neurons (actions):
- bend joint
- bend joint in other direction

- eat

- procreate

At default, the program sets up a small world with a relatively large amount of food units and keeps throwing in critters with randomly generated brains and bodies.

After a while, one of these idiot critters will unavoidably be good enough to maintain a small population:

Slowly but surely, their behaviour will become a lot less random as they demonstrate increasingly better survival skills.

KEYS

To save current settings to a profile, press "s" in the simulation. It will be saved to ./default and can be loaded by using "--profile ./default"

Use F1 in the simulation for more information about keys.

OPTIONS

--autoload num

autoload critters from ˜/.critterding/load
(default: 0, range: 0-1)

--autoloadlastsaved num

autoload critters from ˜/.critterding/lastsaved
(default: 0, range: 0-1)

--benchmark num

run the critterding benchmark
(default: 0, range: 0-1)

--body_maxbodyparts num

maximum body parts per critter
(default: 30, range: 0-1000000)

--body_maxbodypartsatbuildtime num

maximum body parts for a new critter
(default: 6, range: 1-1000000)

--body_maxbodypartsize num

maximum size of a critters body part
(default: 200, range: 1-1000000)

--body_maxheadsize num

maximum size of a critters head
(default: 80, range: 1-1000000)

--body_maxmutations num

maximum mutations on a body mutant
(default: 3, range: 1-1000000)

--body_minbodypartsize num

minimum size of a critters body part
(default: 20, range: 1-1000000)

--body_minheadsize num

minimum size of a critters head
(default: 30, range: 1-1000000)

--body_mutationrate num

percentage of newborns that mutate bodies
(default: 10, range: 0-100)

--body_percentmutateeffectaddbodypart num

chance of adding a body part
(default: 1, range: 0-100)

--body_percentmutateeffectchangecolor num

chance of changing body color
(default: 1, range: 0-100)

--body_percentmutateeffectchangecolor_slightly num

chance of changing body color
(default: 5, range: 0-100)

--body_percentmutateeffectchangeconstraintangles num

chance of changing a joints position angles
(default: 1, range: 0-100)

--body_percentmutateeffectchangeconstraintangles_slightly num

chance of changing a joints position angles
(default: 5, range: 0-100)

--body_percentmutateeffectchangeconstraintlimits num

chance of changing a joints motion limits
(default: 1, range: 0-100)

--body_percentmutateeffectchangeconstraintlimits_slightly num

chance of slightly changing a joints motion limits
(default: 5, range: 0-100)

--body_percentmutateeffectchangeconstraintposition num

chance of changing a joints position
(default: 1, range: 0-100)

--body_percentmutateeffectchangeconstraintposition_slightly num

chance of slightly changing a joints position
(default: 5, range: 0-100)

--body_percentmutateeffectremovebodypart num

chance of removing a body part
(default: 1, range: 0-100)

--body_percentmutateeffectrepositionhead num

chance of repositioning head
(default: 5, range: 0-100)

--body_percentmutateeffectresizebodypart num

chance of resizing a body part
(default: 1, range: 0-100)

--body_percentmutateeffectresizebodypart_slightly num

chance of slightly resizing a body part
(default: 5, range: 0-100)

--body_percentmutateeffectresizehead num

chance of resizing a head
(default: 1, range: 0-100)

--body_percentmutateeffectresizehead_slightly num

chance of slightly resizing a head
(default: 5, range: 0-100)

--brain_costfiringmotorneuron num

cost of firing a motor neuron
(default: 100, range: 0-1000000)

--brain_costfiringneuron num

cost of firing a neuron
(default: 10, range: 0-1000000)

--brain_costhavingneuron num

cost of having a neuron (1/100000 energy)
(default: 50, range: 0-1000000)

--brain_costhavingsynapse num

cost of having a synapse
(default: 1, range: 0-1000000)

--brain_maxdendridicbranches num

maximum number of dendrites per neuron
(default: 3, range: 1-1000000)

--brain_maxfiringthreshold num

maximum firingthreshold of a neuron
(default: 10, range: 1-1000000)

--brain_maxmutations num

maximum mutations on a brain mutant
(default: 10, range: 1-1000000)

--brain_maxneurons num

maximum neurons per critter
(default: 1000, range: 1-1000000)

--brain_maxneuronsatbuildtime num

maximum neurons for a new critter
(default: 200, range: 1-1000000)

--brain_maxplasticitystrengthen num

maximum weight by which plastic synapses strengthen
(default: 1000, range: 1-1000000)

--brain_maxplasticityweaken num

maximum weight by which plastic synapses weaken
(default: 10000, range: 1-1000000)

--brain_maxsynapses num

maximum synapses per neuron
(default: 100, range: 1-1000000)

--brain_maxsynapsesatbuildtime num

maximum synapses for a new neuron of a new critter
(default: 40, range: 1-1000000)

--brain_minfiringthreshold num

minimum firingthreshold of a neuron
(default: 2, range: 1-1000000)

--brain_minneuronsatbuildtime num

minimum neurons for a new critter
(default: 50, range: 1-1000000)

--brain_minplasticitystrengthen num

minimum weight by which plastic synapses strengthen
(default: 100, range: 1-1000000)

--brain_minplasticityweaken num

minimum weight by which plastic synapses weaken
(default: 1000, range: 1-1000000)

--brain_minsynapses num

minimum synapses per neuron
(default: 1, range: 1-1000000)

--brain_minsynapsesatbuildtime num

minimum synapses for a new neuron
(default: 1, range: 1-1000000)

--brain_mutate_maxdendridicbranches num

mutate this value
(default: 0, range: 0-1)

--brain_mutate_maxfiringthreshold num

mutate this value
(default: 0, range: 0-1)

--brain_mutate_minfiringthreshold num

mutate this value
(default: 0, range: 0-1)

--brain_mutate_mutateeffects num

mutate mutation effects
(default: 0, range: 0-1)

--brain_mutate_percentchanceconsistentsynapses num

mutate this value
(default: 0, range: 0-1)

--brain_mutate_percentchanceinhibitoryneuron num

mutate this value
(default: 0, range: 0-1)

--brain_mutate_percentchanceinhibitorysynapses num

mutate this value
(default: 0, range: 0-1)

--brain_mutate_percentchancemotorneuron num

mutate this value
(default: 0, range: 0-1)

--brain_mutate_percentchanceplasticneuron num

mutate this value
(default: 0, range: 0-1)

--brain_mutate_percentchancesensorysynapse num

mutate this value
(default: 0, range: 0-1)

--brain_mutate_plasticityfactors num

mutate min/max plasticity values
(default: 0, range: 0-1)

--brain_mutationrate num

percentage of newborns that mutate brains
(default: 10, range: 0-100)

--brain_percentchanceconsistentsynapses num

percent chance a neurons synapses are all inhibitory or excitatory
(default: 0, range: 0-100)

--brain_percentchanceinhibitoryneuron num

percent chance a neuron is inhibotory
(default: 50, range: 0-100)

--brain_percentchanceinhibitorysynapses num

percent chance a synapse is inhibitory
(default: 50, range: 0-100)

--brain_percentchancemotorneuron num

percent chance a neuron is a motor neuron
(default: 50, range: 0-100)

--brain_percentchanceplasticneuron num

percent chance a neuron has plastic synapses
(default: 20, range: 0-100)

--brain_percentchancesensorysynapse num

percent change a synapse connects to an input
(default: 20, range: 0-100)

--brain_percentmutateeffectaddneuron num

chance of adding a neuron
(default: 1, range: 0-100)

--brain_percentmutateeffectaddsynapse num

chance of adding a synapse
(default: 5, range: 0-100)

--brain_percentmutateeffectaltermutable num

mutate value of a mutatable option
(default: 1, range: 0-100)

--brain_percentmutateeffectalterneuron num

chance of altering a neuron
(default: 2, range: 0-100)

--brain_percentmutateeffectremoveneuron num

chance of removing a neuron
(default: 1, range: 0-100)

--brain_percentmutateeffectremovesynapse num

chance of removing a synapse
(default: 5, range: 0-100)

--camerasensitivity num

sensitivity of the camera
(default: 20, range: 1-1000)

--colormode num

colors genetically exact critters identically
(default: 0, range: 0-1)

--critter_autoexchangeinterval num

save critters every n seconds
(default: 0, range: 0-1000000)

--critter_autosaveinterval num

save critters every n seconds
(default: 0, range: 0-1000000)

--critter_enableomnivores num

enables critters to eat each other
(default: 1, range: 0-1)

--critter_insertevery num

inserts a random critter every n frames
(default: 0, range: 0-1000000)

--critter_killhalfat num

kill 50% of critters if population reaches n
(default: 120, range: 2-1000000)

--critter_maxenergy num

maximum amount of energy a critter has
(default: 5000, range: 1-1000000)

--critter_maxlifetime num

maximum number of frames a critter lives
(default: 40000, range: 1-1000000)

--critter_minenergyproc num

energy a critters needs to procreate
(default: 3000, range: 1-1000000)

--critter_procinterval num

minimum frames between procreations
(default: 20, range: 1-1000000)

--critter_raycastvision num

use raycast vision instead of opengl
(default: 0, range: 0-1)

--critter_retinasize num

size of a critters eye retina
(default: 8, range: 1-1000)

--critter_sightrange num

distance a critter can see (10 = 1 worldsize)
(default: 70, range: 1-1000000)

--critter_startenergy num

energy a new critter (adam) starts with
(default: 3000, range: 1-1000000)

--drawscene num

draw the scene
(default: 1, range: 0-1)

--energy num

energy in the system by number of food cubes
(default: 400, range: 0-1000000)

--exit_if_empty num

exit simulation if there are no critters
(default: 0, range: 0-1)

--food_maxenergy num

maximum amount of energy a food unit has
(default: 1500, range: 1-1000000)

--food_maxlifetime num

maximum number of frames a food unit exists
(default: 40000, range: 1-1000000)

--food_size num

size of a food unit
(default: 200, range: 1-1000000)

--fpslimit num

frames per second for the fps limiter
(default: 30, range: 1-1000)

--fsX num

fullscreen resolution X
(default: 800, range: 1-1000000)

--fsY num

fullscreen resolution Y
(default: 600, range: 1-1000000)

--fullscreen num

enable fullscreen mode
(default: 0, range: 0-1)

--headless num

do not open gl context
(default: 0, range: 0-1)

--killhalf_decrenergypct num

decrease energy by n percent when killhalfat triggers
(default: 1, range: 0-100)

--killhalf_decrmaxlifetimepct num

decrease critter_maxlifetime by n when killhalfat triggers
(default: 0, range: 0-100)

--killhalf_incrworldsizeX num

increase worldsizeX by n when killhalfat triggers
(default: 0, range: 0-100)

--killhalf_incrworldsizeY num

increase worldsizeY by n when killhalfat triggers
(default: 0, range: 0-100)

--mincritters num

minimum number of critters
(default: 10, range: 0-1000)

--race num

enable race simulation
(default: 0, range: 0-1)

--retinasperrow num

number of vision retinas to stack per row onscreen
(default: 20, range: 1-1000)

--roundworld num

enable round planet
(default: 0, range: 0-1)

--startseed num

enable fullscreen mode
(default: 0, range: 0-4000000000)

--testworld num

a world for test purposes
(default: 0, range: 0-1)

--threads num

threads to use
(default: 1, range: 1-16)

--worldsizeX num

size of the world along axis X
(default: 23, range: 1-5000)

--worldsizeY num

size of the world along axis Y
(default: 13, range: 1-5000)

--worldwalls num

enable walls around the world
(default: 1, range: 0-1)

SEE ALSO

http://critterding.sourceforge.net/