public Evaluator(int populationSize, Genome startingGenome, Counter nodeInnovation, Counter connectionInnovation)
{
this.populationSize = populationSize;
this.nodeInnovation = nodeInnovation;
this.connectionInnovation = connectionInnovation;
genomes = new List <Genome>(populationSize);
for (int i = 0; i < populationSize; i++)
{
genomes.Add(new Genome(startingGenome));
}
nextGenGenomes = new List <Genome>(populationSize);
speciesMap = new Dictionary <Genome, Species>();
fitnessMap = new Dictionary <Genome, float>();
species = new List <Species>();
}
public void AddConnectionMutation(Counter innovation, int maxAttempts)
{
int tries = 0;
bool success = false;
while (tries < maxAttempts && success == false)
{
tries++;
int listSize = Nodes.Count;
int randomNodeKey1 = Random.Range(0, listSize - 1);
int randomNodeKey2 = Random.Range(0, listSize - 1);
while (!Nodes.ContainsKey(randomNodeKey1) || !Nodes.ContainsKey(randomNodeKey2))
{
randomNodeKey1 = Random.Range(0, listSize - 1);
randomNodeKey2 = Random.Range(0, listSize - 1);
}
NodeGene node1 = Nodes[randomNodeKey1];
NodeGene node2 = Nodes[randomNodeKey2];
bool reversed = false;
if (node1.GetType().Equals(NodeGene.NodeType.HIDDEN) && node2.GetType().Equals(NodeGene.NodeType.INPUT))
{
reversed = true;
}
else if (node1.GetType().Equals(NodeGene.NodeType.OUTPUT) && node2.GetType().Equals(NodeGene.NodeType.HIDDEN))
{
reversed = true;
}
else if (node1.GetType().Equals(NodeGene.NodeType.OUTPUT) && node2.GetType().Equals(NodeGene.NodeType.INPUT))
{
reversed = true;
}
bool connectionImpossible = false;
if (node1.GetType().Equals(NodeGene.NodeType.INPUT) && node2.GetType().Equals(NodeGene.NodeType.INPUT))
{
connectionImpossible = true;
}
else if (node1.GetType().Equals(NodeGene.NodeType.OUTPUT) && node2.GetType().Equals(NodeGene.NodeType.OUTPUT))
{
connectionImpossible = true;
}
bool connectionExists = false;
foreach (ConnectionGene con in Connections.Values)
{
if (con.InNode == node1.ID && con.OutNode == node2.ID)
{
connectionExists = true;
break;
}
else if (con.InNode == node2.ID && con.OutNode == node1.ID)
{
connectionExists = true;
break;
}
}
if (connectionExists || connectionImpossible)
{
continue;
}
ConnectionGene newCon = new ConnectionGene(reversed ? node2.ID : node1.ID, reversed ? node1.ID : node2.ID, Random.Range(0f, 1f), true, innovation.GetInnovation());
//Connections.Add(newCon.Innovation, newCon);
AddConnectionGene(newCon);
success = true;
}
if (success == false)
{
Debug.Log("Tried, but could not add more connections");
}
}