public BirthEventInfo(Vector2 location, float tick, int parentId, string parentTag, int childId, string childTag, AbstractBrainGenotype childGenotype, int speciesId) : base(tick, location)
{
ParentId = parentId;
ParentTag = parentTag;
ChildId = childId;
ChildTag = childTag;
ChildGenotype = childGenotype;
}
public override float CompareSimilarity(AbstractBrainGenotype other)
{
if (!(other is NeatBrainGenotype))
{
throw new Exception("Cannot compare two different types of genome.");
}
var(disjoint, excess, weightDiff) = CompareConnectionGenes((NeatBrainGenotype)other);
return((float)(1.0 * disjoint + 1.0 * excess + 0.5 * weightDiff));
}
protected override void OnPoolEntityChanged(EntityManager pool, Entity entity)
{
var index = Compatible.IndexOf(entity);
// If we already have the entity, check if we are still compatible
if (index >= 0)
{
if (!CompatiblePredicate(entity))
{
SwapRemove.SwapRemoveList(Compatible, index);
}
}
else
// If we do not have it but we are compatible, add it
{
if (CompatiblePredicate(entity))
{
Compatible.Add(entity);
var brain = entity.GetComponent <BrainComponent>();
// This will happen with the initial critters. Place into 'origin' species.
if (brain.ParentSpecies is null)
{
brain.Species = Species[entity.Tag][0];
return;
}
// Check what species the child should go in.
// If compatible with the parent species then place it in that species.
// Else, create a new species.
if (brain.ParentSpecies.Representative.CompareSimilarity(brain.BrainGenotype) <= _similarityThreshold)
{
brain.Species = brain.ParentSpecies;
}
else
{
int newId = NextSpeciesId;
NextSpeciesId++;
// Create representative for species
AbstractBrainGenotype rep = (AbstractBrainGenotype)brain.BrainGenotype.Clone();
var newSpecies = new Species()
{
Id = newId,
Representative = rep,
TimeCreated = _simulation.Tick * _simulation.SimDeltaTime,
};
// Create new species.
Species[entity.Tag].Add(newSpecies);
brain.Species = newSpecies;
}
}
}
}
public void Update(uint tick, float _gameSpeed)
{
Random r = new Random();
for (int i = 0; i < Compatible.Count; i++)
{
var parentEntity = Compatible[i];
var reproduction = parentEntity.GetComponent <ReproductionComponent>();
if (reproduction.Reproduce > reproduction.ReproductionThreshold)
{
var energy = parentEntity.GetComponent <EnergyComponent>();
// check if we have the energy
if (!energy.CanAfford(reproduction.ReproductionEnergyCost))
{
continue;
}
if (energy.Energy - reproduction.ReproductionEnergyCost < reproduction.RequiredRemainingEnergy)
{
continue;
}
// charge teh parent energy. Each critter has an efficency rating, so some energy gets wasted an the rest gets sent to the child.
float charged = energy.ChargeEnergy(reproduction.ReproductionEnergyCost);
float toChild = reproduction.Efficency * charged;
float wasted = charged - toChild;
// Let the energy manager know about the wasted energy.
_energyManager.DepositEnergy(wasted);
// Some set up for the new child, setting positions/giving energy.
var babyEntity = Pool.AddEntityFromDefinition(reproduction.ChildDefinitionId, _simulation.JsonSettings, parentEntity.Tag);
babyEntity.GetComponent <EnergyComponent>().Energy = toChild;
var parentPosition = parentEntity.GetComponent <TransformComponent>().LocalPosition;
babyEntity.GetComponent <TransformComponent>().LocalPosition = parentPosition;
// The new child will need a mutated brain
var originalBrainComponent = parentEntity.GetComponent <BrainComponent>();
var originalBrain = originalBrainComponent.Brain;
AbstractBrainGenotype parentGenotype = ((NeatBrainPhenotype)originalBrain).Genotype;
NeatBrainGenotype childGenotype = (NeatBrainGenotype)parentGenotype.Clone();
_muationManager.Mutate(childGenotype, _innovationIdManager);
var newBrain = babyEntity.GetComponent <BrainComponent>();
newBrain.SetGenotype(childGenotype);
// Do not need to pass it type as we have already set the brain, therefore it does not need initializing.
newBrain.SetUpLinks(null, _simulation.Settings);
newBrain.ParentSpecies = originalBrainComponent.Species;
BirthEventInfo e = new BirthEventInfo(parentPosition, tick * _gameSpeed, parentEntity.Id, parentEntity.Tag, babyEntity.Id, babyEntity.Tag, childGenotype, originalBrainComponent.Species.Id);
BirthEvent?.Invoke(e);
}
}
}
public override float CompareSimilarity(AbstractBrainGenotype other)
{
return(0);
}
