private void AddRandomNeuron(InnovationCacher currentGeneration)
{
var randGene = GetRandomEnabledGene();
var index = Chromosome.NeuronCount;
var g1 = new NeatGene(_neat, randGene.From, index);
g1.Weight = 1.0;
g1.Recursive = randGene.Recursive;
currentGeneration.AssignHistory(g1);
var g2 = new NeatGene(_neat, index, randGene.To);
g2.Weight = randGene.Weight;
g2.Recursive = randGene.Recursive;
currentGeneration.AssignHistory(g2);
randGene.Enabled = false;
Chromosome.AppendGene(g1);
Chromosome.AppendGene(g2);
}
public void CreateInitialOrganisms(IList <IBody> bodies)
{
_species.Clear();
for (var i = 0; i < bodies.Count; i++)
{
var body = bodies[i];
var standardGenes = new NeatChromosome(_neat, body.InputCount, body.OutputCount);
_innovationCacher.AssignHistory(standardGenes);
var phenotype = new Phenotype(_neat, standardGenes);
var organism = new Organism(_neat, body, phenotype);
FillOrganismIntoSpecies(organism);
}
}
private void AddRandomConnection(InnovationCacher currentGeneration)
{
var neuronPair = GetTwoUnconnectedNeurons();
var fromNeuron = neuronPair[0];
var toNeuron = neuronPair[1];
var newConnectionGene = new NeatGene(_neat, _neurons.IndexOf(fromNeuron), _neurons.IndexOf(toNeuron));
if (fromNeuron.Layer > toNeuron.Layer)
{
if (!_neat.Structure.AllowRecurrentConnections)
{
throw new Exception("Illegal recurrent connection");
}
newConnectionGene.Recursive = true;
}
currentGeneration.AssignHistory(newConnectionGene);
var inConnection = new NeatNeuron.Connection();
inConnection.Recursive = newConnectionGene.Recursive;
inConnection.Neuron = fromNeuron;
inConnection.Weight = newConnectionGene.Weight;
toNeuron.Connections.Add(inConnection);
var outConnection = new NeatNeuron.Connection();
outConnection.Recursive = newConnectionGene.Recursive;
outConnection.Neuron = toNeuron;
outConnection.Weight = newConnectionGene.Weight;
outConnection.OutGoing = true;
fromNeuron.Connections.Add(outConnection);
Chromosome.AppendGene(newConnectionGene);
CategorizeNeuronsIntoLayers();
}