Breeder

breeder.cs

public class Breeder
    {
        public double ChanceOfMutation { get; private set; }        
        public Couple Couple { get; private set; }

        public Breeder(double chanceOfMutation, Couple couple)
        {
            Couple = couple;
            ChanceOfMutation = chanceOfMutation;
        }

        public Genotype GetChild()
        {
            var genotype = new Genotype();

            for (int i = 0; i < Couple.Mother.Genes.Count; i++ )
            {
                var mutate = ShouldMutate();

                if (i < Couple.Father.Genes.Count && Couple.Father.Genes[i] != null && (Couple.Father.Genes[i] != Couple.Mother.Genes[i] || mutate))
                {
                    if(mutate)
                    {
                        Mutate(genotype);
                    }
                    else
                    {
                        genotype.Genes.Add(RandomNumberSource.GetNext(1) == 1
                                               ? new Gene (Couple.Mother.Genes[i].Value )
                                               : new Gene ( Couple.Father.Genes[i].Value ));
                    }
                }
                else if (i < Couple.Father.Genes.Count)
                {
                    genotype.Genes.Add(new Gene (Couple.Mother.Genes[i].Value ));
                }
                else
                {
                    genotype.Genes.Add(new Gene(Couple.Mother.Genes[i].Value ));
                }
            }

            if (Couple.Father.Genes.Count > Couple.Mother.Genes.Count)
            {
                for (int i = Couple.Father.Genes.Count - Couple.Mother.Genes.Count; i < Couple.Father.Genes.Count; i++)
                {
                    if( ShouldMutate() )
                    {
                        Mutate(genotype);
                    }
                    else
                    {
                        genotype.Genes.Add(new Gene (Couple.Father.Genes[i].Value ));
                    }
                }
            }
            return genotype;
        }

        private bool ShouldMutate()
        {
            double chance = Math.Round(ChanceOfMutation, 3);
            int intChance = Convert.ToInt32(chance * 1000);
            int value = RandomNumberSource.GetNext(100000);
            if (value < intChance)
            {
                return true;
            }
            return false;
        }

        private void Mutate(Genotype genotype)
        {
            int next = RandomNumberSource.GetNext(2);
            if (next == 2 || next == 1)
            {
                AddRandomGene(genotype);
            }
            else if (next == 2)
            {
                AddRandomGene(genotype);
            }
        }

        private void AddRandomGene(Genotype genotype)
        {
            genotype.Genes.Add(Gene.GetRandomGene());
        }
    }