/// <summary>
/// Mutates a gene by bitwise mutation.
/// </summary>
/// <param name="gene"></param>
/// <returns></returns>
public static Gene Mutate(Gene gene)
{
if ( gene is BinaryGene )
{
BinaryGene g = (BinaryGene) gene.Clone();
g.Value = !(BinaryGene)gene;
return g;
}
else if ( gene is DoubleGene )
{
DoubleGene g = (DoubleGene) gene.Clone();
byte[] bytes = BitConverter.GetBytes(g.Value);
BitArray ba = new BitArray(bytes);
int p = Utils.Rand.Next( ba.Length );
ba.Set(p, !ba[p]);
ba.CopyTo(bytes, 0);
g.Value = BitConverter.ToDouble(bytes,0);
return g;
}
else if ( gene is IntegerGene )
{
IntegerGene g = (IntegerGene) gene.Clone();
byte[] bytes = BitConverter.GetBytes(g.Value);
BitArray ba = new BitArray(bytes);
int p = Utils.Rand.Next( ba.Length );
ba.Set(p, !ba[p]);
ba.CopyTo(bytes, 0);
g.Value = BitConverter.ToInt32(bytes,0);
return g;
}
return (Gene) gene.Clone(); // default
}
