/// <summary>
/// Initializes a new instance of the <see cref="ShortArrayChromosome"/> class.
/// </summary>
///
/// <param name="source">Source chromosome to copy.</param>
///
/// <remarks><para>This is a copy constructor, which creates the exact copy
/// of specified chromosome.</para></remarks>
///
protected ShortArrayChromosome(ShortArrayChromosome source)
{
// copy all properties
length = source.length;
maxValue = source.maxValue;
val = (ushort[])source.val.Clone( );
fitness = source.fitness;
}
/// <summary>
/// Crossover operator.
/// </summary>
///
/// <param name="pair">Pair chromosome to crossover with.</param>
///
/// <remarks><para>The method performs crossover between two chromosomes ?interchanging
/// range of genes (array elements) between these chromosomes.</para></remarks>
///
public override void Crossover(IChromosome pair)
{
ShortArrayChromosome p = (ShortArrayChromosome)pair;
// check for correct pair
if ((p != null) && (p.length == length))
{
// crossover point
int crossOverPoint = rand.Next(length - 1) + 1;
// length of chromosome to be crossed
int crossOverLength = length - crossOverPoint;
// temporary array
ushort[] temp = new ushort[crossOverLength];
// copy part of first (this) chromosome to temp
Array.Copy(val, crossOverPoint, temp, 0, crossOverLength);
// copy part of second (pair) chromosome to the first
Array.Copy(p.val, crossOverPoint, val, crossOverPoint, crossOverLength);
// copy temp to the second
Array.Copy(temp, 0, p.val, crossOverPoint, crossOverLength);
}
}