public void GetNodeID_Test()
{
GeneCounter nodeCounter = new GeneCounter(10);
List <int> nodesInGenome = new List <int>();
//Get an existing node
int result = mutationLog.GetNodeID(connection1.InnovationNumber, nodesInGenome, nodeCounter);
Assert.AreEqual(node1.ID, result);
//Get a new node number
nodesInGenome.Add(result);
int result2 = mutationLog.GetNodeID(connection1.InnovationNumber, nodesInGenome, nodeCounter);
Assert.AreEqual(10, result2);
Assert.AreEqual(2, mutationLog.NodeMutations[connection1.InnovationNumber].Count);
//Get the second node again
int result3 = mutationLog.GetNodeID(connection1.InnovationNumber, nodesInGenome, nodeCounter);
Assert.AreEqual(10, result3);
Assert.AreEqual(2, mutationLog.NodeMutations[connection1.InnovationNumber].Count);
}
public void AddNodeMutation(AgentObject agent, int amountTries, MutationLog mutationLog, GeneCounter connectionInnovationCounter, GeneCounter nodeCounter)
{
List <int> connectionKeys = agent.Genome.Connections.Keys.OrderBy(x => x).ToList();
if (connectionKeys.Count <= 0)
{
return;
}
for (int i = 0; i < amountTries; i++)
{
ConnectionGene connection = null;
//Check the size of the genome, if the genome is small, take an older gene
if (agent.Genome.Nodes.Keys.Count <= _SIZE_THRESHOLD)
{
connection = agent.Genome.Connections[connectionKeys[Random.Range(0, Mathf.RoundToInt(connectionKeys.Count - (Mathf.Sqrt(connectionKeys.Count))))]];
}
else
{
//Select random connection
connection = agent.Genome.Connections[connectionKeys[Random.Range(0, connectionKeys.Count)]];
}
//If mutation is possible, mutate the agent
if (agent.Genome.IsNodePossible(connection))
{
//int nodeID = mutationLog.GetNodeID(connection.InnovationNumber, nodeCounter);
int nodeID = mutationLog.GetNodeID(connection.InnovationNumber, agent.Genome.Nodes.Keys.ToList(), nodeCounter);
int innovationNumberInToNewNode = mutationLog.GetConnectionInnovationNumber(connection.InNode, nodeID, connectionInnovationCounter);
int innovationNumberNewNodeToOut = mutationLog.GetConnectionInnovationNumber(nodeID, connection.OutNode, connectionInnovationCounter);
agent.Genome.AddNodeMutation(connection, nodeID, innovationNumberInToNewNode, innovationNumberNewNodeToOut);
break;
}
}
}