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);
}
public static bool Compare(NodeIndexPair pair1, NodeIndexPair pair2)
{
// Check pair's node index 1 is same as pair's node index 1
if (pair1.nodeIndex1 == pair2.nodeIndex1)
{
return(pair1.nodeIndex2 == pair2.nodeIndex2);
}
// Check pair's node index 1 is same as pair's node index 2
else if (pair1.nodeIndex1 == pair2.nodeIndex2)
{
return(pair1.nodeIndex2 == pair2.nodeIndex1);
}
return(false);
}