public bool MutateByInsertNodeBetweenConnection()
{
for (int i = 0; i < m_originGenome.connectionGenes.Length; i++)
{
// The inbetween node
int middleNodeIndex = m_originGenome.nodeGenes.Length;
Genometype.NodeGenes newNode = new Genometype.NodeGenes(Genometype.NodeGenes.Types.Hidden);
// The replacement connection
Genometype.ConnectionGenens firstHalfConnection = new Genometype.ConnectionGenens(
m_originGenome.connectionGenes[i].inputNodeIndex, middleNodeIndex, 1);
Genometype.ConnectionGenens secondHalfConnection = new Genometype.ConnectionGenens(
middleNodeIndex, m_originGenome.connectionGenes[i].outputNodeIndex,
m_originGenome.connectionGenes[i].weight);
// Create the new genome, and disabled the original connection
Genometype newGenome = MutateGenome(newNode, new Genometype.ConnectionGenens[] {
firstHalfConnection,
secondHalfConnection,
});
newGenome.connectionGenes[i].enabled = false;
mutations.Add(newGenome);
}
return(false);
}
public bool MutateByAddingConnection()
{
// Loop through the input node and output node, pair them up if they are new
List <NodeIndexPair> possiblePairs = new List <NodeIndexPair>();
for (int i = 0; i < dataInputNodes.Count; i++)
{
for (int e = 0; e < dataOutputNodes.Count; e++)
{
if (dataInputNodes[i] != dataOutputNodes[e])
{
NodeIndexPair newPair = new NodeIndexPair(dataInputNodes[i], dataOutputNodes[e]);
bool overlap = false;
// Loop through exist pairs to check for overlap
for (int piarIndex = 0; piarIndex < existPairs.Count && !overlap; piarIndex++)
{
overlap = NodeIndexPair.Compare(newPair, existPairs[piarIndex]);
}
// Loop through possible pairs to check for overlap
for (int piarIndex = 0; piarIndex < possiblePairs.Count && !overlap; piarIndex++)
{
overlap = NodeIndexPair.Compare(newPair, possiblePairs[piarIndex]);
}
if (!overlap)
{
possiblePairs.Add(newPair);
}
}
}
}
// Loop through possible pairs to generate mutations
for (int i = 0; i < possiblePairs.Count; i++)
{
Genometype.ConnectionGenens newConnection = new Genometype.ConnectionGenens(
possiblePairs[i].nodeIndex1, possiblePairs[i].nodeIndex2,
Random.Range(randomWeightMin, randomWeightMax), Genometype.ConnectionGenens.OperatorType.Multiply);
mutations.Add(MutateGenome(newConnection));
newConnection = new Genometype.ConnectionGenens(
possiblePairs[i].nodeIndex1, possiblePairs[i].nodeIndex2,
Random.Range(randomWeightMin, randomWeightMax), Genometype.ConnectionGenens.OperatorType.Plus);
mutations.Add(MutateGenome(newConnection));
}
return(false);
}
/// <summary>
/// Similar to clone, except add new connection while cloning
/// </summary>
/// <param name="newConnections">The new connections</param>
/// <returns>The new genome</returns>
private Genometype MutateGenome(Genometype.ConnectionGenens newConnection)
{
// Copy the nodes
Genometype.NodeGenes[] newNodeGenes = new Genometype.NodeGenes[m_originGenome.nodeGenes.Length];
for (int i = 0; i < m_originGenome.nodeGenes.Length; i++)
{
newNodeGenes[i] = m_originGenome.nodeGenes[i];
}
// Copy the connection
Genometype.ConnectionGenens[] newConnectionGenes = new Genometype.ConnectionGenens[m_originGenome.connectionGenes.Length + 1];
for (int i = 0; i < m_originGenome.connectionGenes.Length; i++)
{
newConnectionGenes[i] = m_originGenome.connectionGenes[i];
}
// Add new connection at the end
newConnectionGenes[m_originGenome.connectionGenes.Length] = newConnection;
return(new Genometype(newNodeGenes, newConnectionGenes));
}
public void StartProcess()
{
for (int i = 0; i < m_genome.connectionGenes.Length; i++)
{
Genometype.ConnectionGenens connection = m_genome.connectionGenes[i];
if (connection.enabled)
{
switch (connection.operatorType)
{
case Genometype.ConnectionGenens.OperatorType.Multiply:
m_genome.nodeGenes[connection.outputNodeIndex].value +=
m_genome.nodeGenes[connection.inputNodeIndex].value * connection.weight;
break;
case Genometype.ConnectionGenens.OperatorType.Plus:
m_genome.nodeGenes[connection.outputNodeIndex].value +=
m_genome.nodeGenes[connection.inputNodeIndex].value + connection.weight;
break;
}
}
}
}
/// <summary>
/// Similar to clone, except add new connection and new node while cloning
/// </summary>
/// <param name="newNode">The new node</param>
/// <param name="newConnections">Array of the new connections</param>
/// <returns>The new genome</returns>
private Genometype MutateGenome(Genometype.NodeGenes newNode, Genometype.ConnectionGenens[] newConnections)
{
// Copy the nodes
Genometype.NodeGenes[] newNodeGenes = new Genometype.NodeGenes[m_originGenome.nodeGenes.Length + 1];
for (int i = 0; i < m_originGenome.nodeGenes.Length; i++)
{
newNodeGenes[i] = m_originGenome.nodeGenes[i];
}
newNodeGenes[m_originGenome.nodeGenes.Length] = newNode;
// Copy the connection
Genometype.ConnectionGenens[] newConnectionGenes = new Genometype.ConnectionGenens[m_originGenome.connectionGenes.Length + newConnections.Length];
for (int i = 0; i < m_originGenome.connectionGenes.Length; i++)
{
newConnectionGenes[i] = m_originGenome.connectionGenes[i];
}
for (int i = 0; i < newConnections.Length; i++)
{
newConnectionGenes[i + m_originGenome.connectionGenes.Length] = newConnections[i];
}
return(new Genometype(newNodeGenes, newConnectionGenes));
}
public NodeIndexPair(Genometype.ConnectionGenens connection)
{
nodeIndex1 = connection.inputNodeIndex;
nodeIndex2 = connection.outputNodeIndex;
}
