private void Mutate(IGenome genome, double soften = 1)
{
if (new Random().NextDouble() < GenerationParameters.MutateAddNodeProbability / Math.Max(soften, 1))
{
genome.MutateAddNode();
}
else if (new Random().NextDouble() < GenerationParameters.MutateAddGeneProbability / Math.Max(soften, 1))
{
genome.MutateAddGene(Population.Genomes.SelectMany(g => g.Genes));
}
else
{
if (new Random().NextDouble() < GenerationParameters.MutateAllGeneWeightsProbability)
{
genome.MutateGeneWeights(GeneMutationType.AdjustWeight, GeneParameters.MutateGeneWeightFactor, 1);
}
if (new Random().NextDouble() < GenerationParameters.MutateGeneExpressionProbability)
{
genome.MutateGeneExpression();
}
if (new Random().NextDouble() < GenerationParameters.MutateGeneReExpressionProbability)
{
genome.MutateGeneReExpress();
}
IGene geneCandidate = genome.Genes[new Random().Next(genome.Genes.Count)];
if (new Random().NextDouble() < GenerationParameters.MutateGeneWeightProbability)
{
geneCandidate.MutateWeight(GeneMutationType.AdjustWeight, GeneParameters.MutateGeneWeightFactor);
}
}
}