private static void MutateSynapseFromLayer(Ann ann)
{
if (HelperCountSynapses(ann) == 0)
{
return;
}
Neuron synapseNeuron = ann.GetAllNeurons()[Util.rand.Next(ann.GetAllNeurons().Count)];
if (synapseNeuron.synapses.Count == 0)
{
return;
}
Synapse synapse = synapseNeuron.synapses[Util.rand.Next(synapseNeuron.synapses.Count)];
int layer = ann.GetAllLayers()[Util.rand.Next(ann.GetAllLayers().Length)];
if (!HelperDoesSynapseExist(ann, layer, synapse.FromNeuron))
{
synapse.FromLayer = layer;
}
}
private static void MutateSynapseAddRandom(Ann ann)
{
if (ann.hiddenNeurons.Count == 0)
{
return;
}
int[] layers = ann.GetAllLayers();
int fromLayer = layers.Length != 0 ? layers[Util.rand.Next(layers.Length)] : 0;
int[] fromNeuronPositions = ann.GetNeuronsForLayer(fromLayer).Select(x => x.NeuronPosition).ToArray();
int fromNeuron = fromNeuronPositions[Util.rand.Next(fromNeuronPositions.Length)];
Neuron synapseNeuron = ann.GetAllNeurons()[Util.rand.Next(ann.GetAllNeurons().Count)];
if (!HelperDoesSynapseExist(ann, fromLayer, fromNeuron))
{
synapseNeuron.synapses.Add(new Synapse(fromLayer, fromNeuron));
}
}
