private static void MutateSynapseFromLayer(Ann ann)
{
if (ann.synapses.Count == 0)
{
return;
}
Synapse synapse = ann.synapses[Util.rand.Next(ann.synapses.Count)];
int layer = ann.GetAllLayers()[Util.rand.Next(ann.GetAllLayers().Length)];
if (synapse.ToLayer != layer && !HelperDoesSynapseExist(ann, layer, synapse.FromNeuron, synapse.ToLayer, synapse.ToNeuron))
{
synapse.FromLayer = layer;
}
}
private static void MutateSynapseToNeuron(Ann ann)
{
if (ann.synapses.Count == 0)
{
return;
}
Synapse synapse = ann.synapses[Util.rand.Next(ann.synapses.Count)];
int toLayer = synapse.ToLayer;
Neuron[] neuronsInLayer = ann.GetNeuronsForLayer(toLayer);
Neuron neuron = neuronsInLayer.Length != 0 ? neuronsInLayer[Util.rand.Next(neuronsInLayer.Length)] : null;
int newNeuronPosition = neuron != null ? neuron.NeuronPosition : 0;
if (!HelperDoesSynapseExist(ann, synapse.FromLayer, synapse.FromNeuron, synapse.ToLayer, newNeuronPosition))
{
synapse.ToNeuron = newNeuronPosition;
}
}
