/// <summary>
/// Construct a new instance.
/// </summary>
/// <param name="metaNeatGenome">NeatGenome metadata.</param>
/// <param name="genomeBuilder">NeatGenome builder.</param>
/// <param name="genomeIdSeq">Genome ID sequence; for obtaining new genome IDs.</param>
/// <param name="innovationIdSeq">Innovation ID sequence; for obtaining new innovation IDs.</param>
/// <param name="generationSeq">Generation sequence; for obtaining the current generation number.</param>
/// <param name="addedNodeBuffer">A history buffer of added nodes.</param>
/// <param name="settings">Asexual reproduction settings.</param>
/// <param name="weightMutationScheme">Connection weight mutation scheme.</param>
public NeatReproductionAsexual(
MetaNeatGenome <T> metaNeatGenome,
INeatGenomeBuilder <T> genomeBuilder,
Int32Sequence genomeIdSeq,
Int32Sequence innovationIdSeq,
Int32Sequence generationSeq,
AddedNodeBuffer addedNodeBuffer,
NeatReproductionAsexualSettings settings,
WeightMutationScheme <T> weightMutationScheme)
{
_settings = settings;
// Instantiate reproduction strategies.
_mutateWeightsStrategy = new MutateWeightsStrategy <T>(metaNeatGenome, genomeBuilder, genomeIdSeq, generationSeq, weightMutationScheme);
_deleteConnectionStrategy = new DeleteConnectionStrategy <T>(metaNeatGenome, genomeBuilder, genomeIdSeq, generationSeq);
// Add connection mutation; select acyclic/cyclic strategy as appropriate.
if (metaNeatGenome.IsAcyclic)
{
_addConnectionStrategy = new AddAcyclicConnectionStrategy <T>(
metaNeatGenome, genomeBuilder,
genomeIdSeq, innovationIdSeq, generationSeq);
}
else
{
_addConnectionStrategy = new AddCyclicConnectionStrategy <T>(
metaNeatGenome, genomeBuilder,
genomeIdSeq, innovationIdSeq, generationSeq);
}
_addNodeStrategy = new AddNodeStrategy <T>(metaNeatGenome, genomeBuilder, genomeIdSeq, innovationIdSeq, generationSeq, addedNodeBuffer);
}
/// <summary>
/// Construct a new instance.
/// </summary>
/// <param name="metaNeatGenome">NEAT genome metadata.</param>
/// <param name="genomeBuilder">NeatGenome builder.</param>
/// <param name="genomeIdSeq">Genome ID sequence; for obtaining new genome IDs.</param>
/// <param name="innovationIdSeq">Innovation ID sequence; for obtaining new innovation IDs.</param>
/// <param name="generationSeq">Generation sequence; for obtaining the current generation number.</param>
/// <param name="addedNodeBuffer">A history buffer of added nodes.</param>
public AddNodeStrategy(
MetaNeatGenome <T> metaNeatGenome,
INeatGenomeBuilder <T> genomeBuilder,
Int32Sequence genomeIdSeq,
Int32Sequence innovationIdSeq,
Int32Sequence generationSeq,
AddedNodeBuffer addedNodeBuffer)
{
_metaNeatGenome = metaNeatGenome;
_genomeBuilder = genomeBuilder;
_genomeIdSeq = genomeIdSeq;
_innovationIdSeq = innovationIdSeq;
_generationSeq = generationSeq;
_addedNodeBuffer = addedNodeBuffer;
}
/// <summary>
/// Construct a new instance.
/// </summary>
/// <param name="metaNeatGenome">NeatGenome metadata.</param>
/// <param name="genomeBuilder">NeatGenome builder.</param>
/// <param name="genomeIdSeq">Genome ID sequence; for obtaining new genome IDs.</param>
/// <param name="innovationIdSeq">Innovation ID sequence; for obtaining new innovation IDs.</param>
/// <param name="generationSeq">Generation sequence; for obtaining the current generation number.</param>
/// <param name="addedNodeBuffer">A history buffer of added nodes.</param>
/// <param name="settings">Sexual reproduction settings.</param>
public NeatReproductionSexual(
MetaNeatGenome <T> metaNeatGenome,
INeatGenomeBuilder <T> genomeBuilder,
Int32Sequence genomeIdSeq,
Int32Sequence innovationIdSeq,
Int32Sequence generationSeq,
AddedNodeBuffer addedNodeBuffer,
NeatReproductionSexualSettings settings)
{
_settings = settings;
_strategy = new UniformCrossoverReproductionStrategy <T>(
metaNeatGenome.IsAcyclic,
settings.SecondaryParentGeneProbability,
genomeBuilder,
genomeIdSeq, generationSeq);
}
public void TestLookup()
{
AddedNodeBuffer buff = new AddedNodeBuffer(10);
// Register some added nodes.
buff.Register(new DirectedConnection(100, 101), 102);
buff.Register(new DirectedConnection(103, 104), 105);
// Test lookups.
TestLookupSuccess(buff, new DirectedConnection(100, 101), 102);
TestLookupSuccess(buff, new DirectedConnection(103, 104), 105);
// Test lookup failure.
TestLookupFail(buff, new DirectedConnection(100, 102));
TestLookupFail(buff, new DirectedConnection(101, 100));
TestLookupFail(buff, new DirectedConnection(103, 102));
TestLookupFail(buff, new DirectedConnection(104, 103));
}
public NeatReproductionSexual(
MetaNeatGenome <T> metaNeatGenome,
INeatGenomeBuilder <T> genomeBuilder,
Int32Sequence genomeIdSeq,
Int32Sequence innovationIdSeq,
Int32Sequence generationSeq,
AddedNodeBuffer addedNodeBuffer,
NeatReproductionSexualSettings settings,
IRandomSourceBuilder rngBuilder)
{
_settings = settings;
_rng = rngBuilder.Create();
_strategy = new UniformCrossoverReproductionStrategy <T>(
metaNeatGenome, genomeBuilder,
genomeIdSeq, generationSeq,
rngBuilder.Create());
}
/// <summary>
/// Construct a new instance.
/// </summary>
/// <param name="metaNeatGenome">NeatGenome metadata.</param>
/// <param name="genomeBuilder">NeatGenome builder.</param>
/// <param name="genomeIdSeq">Genome ID sequence; for obtaining new genome IDs.</param>
/// <param name="innovationIdSeq">Innovation ID sequence; for obtaining new innovation IDs.</param>
/// <param name="generationSeq">Generation sequence; for obtaining the current generation number.</param>
/// <param name="addedNodeBuffer">A history buffer of added nodes.</param>
/// <param name="settings">Asexual reproduction settings.</param>
/// <param name="weightMutationScheme">Connection weight mutation scheme.</param>
public NeatReproductionAsexual(
MetaNeatGenome <T> metaNeatGenome,
INeatGenomeBuilder <T> genomeBuilder,
Int32Sequence genomeIdSeq,
Int32Sequence innovationIdSeq,
Int32Sequence generationSeq,
AddedNodeBuffer addedNodeBuffer,
NeatReproductionAsexualSettings settings,
WeightMutationScheme <T> weightMutationScheme)
{
var settingsComplexifying = settings;
var settingsSimplifying = settings.CreateSimplifyingSettings();
_mutationTypeDistributionsComplexifying = new MutationTypeDistributions(settingsComplexifying);
_mutationTypeDistributionsSimplifying = new MutationTypeDistributions(settingsSimplifying);
_mutationTypeDistributionsCurrent = _mutationTypeDistributionsComplexifying;
// Instantiate reproduction strategies.
_mutateWeightsStrategy = new MutateWeightsStrategy <T>(genomeBuilder, genomeIdSeq, generationSeq, weightMutationScheme);
_deleteConnectionStrategy = new DeleteConnectionStrategy <T>(genomeBuilder, genomeIdSeq, generationSeq);
// Add connection mutation; select acyclic/cyclic strategy as appropriate.
if (metaNeatGenome.IsAcyclic)
{
_addConnectionStrategy = new AddAcyclicConnectionStrategy <T>(
metaNeatGenome, genomeBuilder,
genomeIdSeq, generationSeq);
}
else
{
_addConnectionStrategy = new AddCyclicConnectionStrategy <T>(
metaNeatGenome, genomeBuilder,
genomeIdSeq, generationSeq);
}
_addNodeStrategy = new AddNodeStrategy <T>(metaNeatGenome, genomeBuilder, genomeIdSeq, innovationIdSeq, generationSeq, addedNodeBuffer);
}
private static void TestLookupSuccess(AddedNodeBuffer buff, in DirectedConnection connection, int expectedAddedNodeId)
private static void TestLookupFail(AddedNodeBuffer buff, DirectedConnection connection)
{
Assert.IsFalse(buff.TryLookup(connection, out int addedNodeId));
}
private static void TestLookupSuccess(AddedNodeBuffer buff, DirectedConnection connection, int expectedAddedNodeId)
{
Assert.IsTrue(buff.TryLookup(connection, out int addedNodeId));
Assert.AreEqual(expectedAddedNodeId, addedNodeId);
}