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);
}
/// <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));
}
/// <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));
}
