/// <summary>
/// Creates the child.
/// </summary>
/// <param name="leftParent">Left parent.</param>
/// <param name="rightParent">Right parent</param>
/// <param name="swapPoint">The index of the swap point.</param>
/// <returns>The child.</returns>
protected virtual IIndividual CreateChild(IIndividual leftParent, IIndividual rightParent, int swapPoint)
{
var cutGenesCount = swapPoint + 1;
var child = leftParent.CreateNew();
child.ReplaceGenes(0, leftParent.GetGenes().Take(cutGenesCount).ToArray());
child.ReplaceGenes(cutGenesCount, rightParent.GetGenes().Skip(cutGenesCount).ToArray());
return(child);
}
/// <summary>
/// Creates the child.
/// </summary>
/// <param name="leftParent">Left parent.</param>
/// <param name="rightParent">Right parent</param>
/// <param name="firstSwapPoint">he index of the swap point one gene.</param>
/// <param name="secondSwapPoint">he index of the swap point two gene.</param>
/// <returns>The child.</returns>
protected IIndividual CreateChild(IIndividual leftParent, IIndividual rightParent, int firstSwapPoint, int secondSwapPoint)
{
var firstCutGenesCount = firstSwapPoint + 1;
var secondCutGenesCount = secondSwapPoint + 1;
var child = leftParent.CreateNew();
child.ReplaceGenes(0, leftParent.GetGenes().Take(firstCutGenesCount).ToArray());
child.ReplaceGenes(firstCutGenesCount, rightParent.GetGenes().Skip(firstCutGenesCount).Take(secondCutGenesCount - firstCutGenesCount).ToArray());
child.ReplaceGenes(secondCutGenesCount, leftParent.GetGenes().Skip(secondCutGenesCount).ToArray());
return(child);
}
/// <summary>
/// Cross the specified parents generating the children (Uniform cross).
/// </summary>
/// <param name="firstParent"> First parent</param>
/// <param name="secondParent">Second parent</param>
/// <returns>The offspring (children) of the parents.</returns>
private IList<IIndividual> PerfomCross(IIndividual firstParent, IIndividual secondParent)
{
var firstChild = firstParent.CreateNew();
var secondChild = firstParent.CreateNew();
// uniform cross by pmixProb
for (int i = 0; i < firstParent.Length; i++)
{
if (FastRandom.GetDouble() < mixProbability)
{
firstChild.ReplaceGene(i, firstParent.GetGene(i));
secondChild.ReplaceGene(i, secondParent.GetGene(i));
}
else
{
firstChild.ReplaceGene(i, secondParent.GetGene(i));
secondChild.ReplaceGene(i, firstParent.GetGene(i));
}
}
return new List<IIndividual> { firstChild, secondChild };
}