public void NodeMutate()
{
//adds a new node by disableing a connection. The new node will be connected to the to both the old nodes, there will be a new connection
//from the old input node and then the new node will copy the old connection and add it as its own connection to the old output node.
if (genom.GetConnectionGenesLength() <= 0)
{
return;
}
int index = Random.Range(0, genom.GetConnectionGenesLength() - 1);
Connection connectionToReplace = genom.GetConnectionGene(index);
Node oldInput = genom.GetNodeGenom().Find(n => n.nodeID == connectionToReplace.inNode);
Node oldOutput = genom.GetNodeGenom().Find(n => n.nodeID == connectionToReplace.outNode);
Node newNode = new Node(genom.counter, oldOutput.order, NodeType.Hidden);
Connection inNew = new Connection(newNode.nodeID, oldOutput.nodeID, connectionToReplace.weight, true, genom.currentInnovation);
newNode.AddConnection(inNew);
genom.AddConnectionGene(inNew);
Connection inNewOther = new Connection(oldInput.nodeID, newNode.nodeID, 1, true, genom.currentInnovation);
if (oldInput.nodeType != NodeType.Input)
{
oldInput.AddConnection(inNewOther);
}
genom.AddConnectionGene(inNewOther);
genom.AddNodeGene(newNode);
genom.ChangeConnectionGneneState(index, false);
List <Node> nodes = genom.GetNodeGenom();
newNode.AddOrder(ref nodes);
}