private IEnumerable <BakedOperation> RecursiveOp(
NeuralGenome genome,
Neuron target,
HashSet <InnovationNumber> solvedNeurons)
{
if (target.IsStarting)
{
solvedNeurons.Add(target.InnovationNb);
yield break;
}
Trace.Assert(!solvedNeurons.Contains(target.InnovationNb));
solvedNeurons.Add(target.InnovationNb);
yield return(() => target.Value = target.ValueCollector.InitialValue);
foreach (var gene in genome.GetGenesToNeuron(target.InnovationNb))
{
var synapse = gene.Synapse;
if (!synapse.enabled)
{
continue;
}
if (!solvedNeurons.Contains(synapse.incoming))
{
var neuronToSolve = genome.Neurons[synapse.incoming];
foreach (var op in RecursiveOp(genome, neuronToSolve, solvedNeurons))
{
yield return(op);
}
}
yield return(() =>
{
var incommingNeurVal = genome.Neurons[synapse.incoming].Value;
var newDelta = synapse.Weight * incommingNeurVal;
var newVal = target.ValueCollector.Collect(
target.Value,
newDelta);
target.Value = newVal;
});
}
if (target.ValueModifiers != null)
{
foreach (var valueModifier in target.ValueModifiers)
{
yield return(() =>
target.Value = (float)valueModifier(target.Value));
}
}
if (target.Activation != null)
{
yield return(() =>
target.Value = (float)target.Activation(target.Value));
}
}
