public Population(int size, IFitnessFunction fitnessFunction, IReproduction reproductionFunction, INodeMutator mutator, ISelection selection)
{
this.populationSize = size;
this.fitnessFunction = fitnessFunction;
this.reproductionFunction = reproductionFunction;
this.mutator = mutator;
this.selector = selection;
this.fitnessFunction.Initialise();
// Create the initial population
for (int i = 0; i < size; i++)
{
try
{
NodeContext zeroContext = new NodeContext();
zeroContext.AvailableCollections = fitnessFunction.GetCollections();
zeroContext.AvailableInputs = fitnessFunction.GetInputs();
INode candidateNode = NodeFactory.GenerateNode(zeroContext);
// Make sure we have a decent candidate (i.e. not too large)
double fitness = this.fitnessFunction.CalculateFitness(candidateNode);
if (fitness == Double.MaxValue) continue;
this.population.Add(NodeFactory.GenerateNode(zeroContext));
}
catch (StackOverflowException)
{
}
}
}
public TwoIslandsPopulation(int size, IFitnessFunction fitnessFunction, IReproduction reproductionFunction, INodeMutator mutator, ISelection selection)
{
this.populationSize = size;
this.fitnessFunction = fitnessFunction;
this.reproductionFunction = reproductionFunction;
this.mutator = mutator;
this.selector = selection;
this.fitnessFunction.Initialise();
// The main population needs initializing
this.IntialisePopulation(this.mainPopulation);
this.IntialisePopulation(this.secondaryPopulation);
}