public void makeN1PointToN2(ref NodeGene n1, ref NodeGene n2)
{
if (n1.getNodeType() == NodeGene.NodeType.HIDDEN && n2.getNodeType() == NodeGene.NodeType.INPUT ||
n1.getNodeType() == NodeGene.NodeType.OUTPUT && n2.getNodeType() == NodeGene.NodeType.INPUT ||
n1.getNodeType() == NodeGene.NodeType.OUTPUT && n2.getNodeType() == NodeGene.NodeType.HIDDEN)
{
NodeGene temp = n1;
n1 = n2;
n2 = temp;
}
}
public void Make_Node_One_Point_To_Node_Two()
{
NodeGene n1 = new NodeGene(NodeGene.NodeType.HIDDEN, 0);
NodeGene n2 = new NodeGene(NodeGene.NodeType.INPUT, 1);
genome.makeN1PointToN2(ref n1, ref n2);
Assert.AreEqual(NodeGene.NodeType.HIDDEN, n2.getNodeType());
}
public bool addConnectionMutation(Random random)
{
bool uniqueMatch = false;
NodeGene n1 = null;
NodeGene n2 = null;
if (allConnectionsMade())
{
return(false);
}
// to be used in circular loop checker
Utility.nodeConnections.Clear();
foreach (KeyValuePair <int, ConnectionGene> c in connections)
{
//if key already exists add to hashset
if (Utility.nodeConnections.ContainsKey(c.Value.getOut()))
{
Utility.nodeConnections[c.Value.getOut()].Add(c.Value.getIn());
}
else
{
Utility.nodeConnections.Add(c.Value.getOut(), new HashSet <int>()
{
c.Value.getIn()
});
}
}
while (!uniqueMatch)
{
uniqueMatch = true;
n1 = nodes[nodeNumbers[random.Next(nodeNumbers.Count)]];
n2 = getDifferentNode(random, n1, nodes);
if (circularConnectionFound(n1.getNodeNumber(), n2.getNodeNumber()))
{
return(false);
}
// if n1 and n1 aren't INPUT nodes
if (!(n1.getNodeType() == NodeGene.NodeType.INPUT && n2.getNodeType() == NodeGene.NodeType.INPUT))
{
makeN1PointToN2(ref n1, ref n2);
foreach (KeyValuePair <int, ConnectionGene> c in connections)
{
// checks to see if connection already exists
if (c.Value.getIn() == n1.getNodeNumber() && c.Value.getOut() == n2.getNodeNumber())
{
uniqueMatch = false;
}
}
}
else
{
uniqueMatch = false;
}
}
InnovationUtility.incrementGlobalInnovation();
addConnectionGene(new ConnectionGene(n1.getNodeNumber(), n2.getNodeNumber(), getRandomFloatBetweenPoints(random, -1.0, 1.0), true, InnovationUtility.getGlobalInnovation()));
return(true);
}