private bool AddNode(NetworkGenome temp)
{
List <LinkGene> list = new List <LinkGene>(temp.MutatableLinks);
if (list.Count < 1)
{
return(false);
}
LinkGene split = list[(int)(Utilities.Rnd.NextDouble() * (double)list.Count)];
NodeGene NodeGenes1 = temp.Nodes.Find((Predicate <NodeGene>)(g => g.Id == split.Source));
NodeGene NodeGenes2 = temp.Nodes.Find((Predicate <NodeGene>)(g => g.Id == split.Target));
if (Math.Abs(NodeGenes1.Layer - NodeGenes2.Layer) <= 1)
{
return(false);
}
NodeGene NodeGenes3 = new NodeGene("Identity", 0, Utilities.Rnd.Next(Math.Min(NodeGenes1.Layer, NodeGenes2.Layer) + 1, Math.Max(NodeGenes1.Layer, NodeGenes2.Layer)), NodeType.Hidden);
NodeGenes3.Id = HistoricalMarkings.GetNodeMarking(split.Id, NodeGenes3.Layer, this.Generation);
NodeGenes3.Function = this.SelectFunction();
LinkGene LinkGenes1 = new LinkGene(HistoricalMarkings.GetLinkMarking(NodeGenes1.Id, NodeGenes3.Id, this.Generation), NodeGenes1.Id, NodeGenes3.Id, split.Weight);
LinkGene LinkGenes2 = new LinkGene(HistoricalMarkings.GetLinkMarking(NodeGenes3.Id, NodeGenes2.Id, this.Generation), NodeGenes3.Id, NodeGenes2.Id, Math.Max(-this.Mutate.WeightRange / 2.0, Math.Min(this.Mutate.WeightRange / 2.0, Utilities.Rnd.NextGuassian(0.0, 0.2) * this.Mutate.WeightRange / 2.0)));
temp.Nodes.Add(NodeGenes3);
temp.Links.Add(LinkGenes1);
temp.Links.Add(LinkGenes2);
if (Utilities.Rnd.NextDouble() > this.Mutate.KeepLinkOnAddNode)
{
temp.Links.Remove(split);
}
return(true);
}
private void IncrementGeneration()
{
++this.Generation;
for (int index = 0; index < this.Current.Genomes.Count; ++index)
{
++this.Current.Genomes[index].Age;
}
HistoricalMarkings.CleanUp(this.Generation, this.Speciate.MarkingAge);
}
private void InitLinks(NetworkGenome temp)
{
foreach (NodeGene NodeGenes1 in Enumerable.Where <NodeGene>((IEnumerable <NodeGene>)temp.Nodes, (Func <NodeGene, bool>)(nodes =>
{
if (nodes.Type != NodeType.Bias)
{
return(nodes.Type == NodeType.Input);
}
return(true);
})))
{
foreach (NodeGene NodeGenes2 in Enumerable.Where <NodeGene>((IEnumerable <NodeGene>)temp.Nodes, (Func <NodeGene, bool>)(nodes => nodes.Type == NodeType.Output)))
{
if (Utilities.Rnd.NextDouble() < this.Init.InitalConnectionPercentage)
{
temp.Links.Add(new LinkGene(HistoricalMarkings.GetLinkMarking(NodeGenes1.Id, NodeGenes2.Id, 0), NodeGenes1.Id, NodeGenes2.Id, Utilities.Rnd.NextDouble(-this.Mutate.WeightRange / 2.0, this.Mutate.WeightRange / 2.0)));
}
}
}
}
private bool AddConnection(NetworkGenome temp)
{
List <NodeGene> list1 = new List <NodeGene>((IEnumerable <NodeGene>)temp.Nodes);
NodeGene source = list1[(int)(Utilities.Rnd.NextDouble() * (double)list1.Count)];
List <NodeGene> list2 = new List <NodeGene>(Enumerable.Where <NodeGene>((IEnumerable <NodeGene>)temp.Nodes, (Func <NodeGene, bool>)(nodes =>
{
if (nodes.Type == NodeType.Bias || nodes.Type == NodeType.Input)
{
return(false);
}
if (!this.Mutate.Recurrence)
{
return(nodes.Layer > source.Layer);
}
return(true);
})));
if (list2.Count < 1)
{
return(false);
}
NodeGene target = list2[(int)(Utilities.Rnd.NextDouble() * (double)list2.Count)];
if (Enumerable.Any <LinkGene>((IEnumerable <LinkGene>)temp.Links, (Func <LinkGene, bool>)(l =>
{
if (l.Source == source.Id)
{
return(l.Target == target.Id);
}
return(false);
})))
{
return(false);
}
temp.Links.Add(new LinkGene(0, source.Id, target.Id, Math.Max(-this.Mutate.WeightRange / 2.0, Math.Min(this.Mutate.WeightRange / 2.0, Utilities.Rnd.NextGuassian(0.0, 0.1) * this.Mutate.WeightRange / 2.0)))
{
Id = HistoricalMarkings.GetLinkMarking(source.Id, target.Id, this.Generation)
});
return(true);
}