/// <summary>
/// Initializes a new instance of the IndividualBitmap.
/// </summary>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="init">Initilaization genes.</param>
public IndividualLines(int width, int height, int numberOfLines, bool init = true)
: base(width, height, numberOfLines * 4)
{
this.numberOfLines = numberOfLines;
// Init
if (init)
{
int indexX1 = 0;
int indexY1 = 1;
int indexX2 = 2;
int indexY2 = 3;
for (int i = 0; i < numberOfLines; i++)
{
var sX = FastRandom.GetInt(0, width);
var sY = FastRandom.GetInt(0, height);
var shifts = FastRandom.GetInts(2, 0, 30);
genes[indexX1] = sX;
genes[indexY1] = sY;
genes[indexX2] = sX + shifts[0];
genes[indexY2] = sY + shifts[1];
indexX1 += 4;
indexY1 += 4;
indexX2 += 4;
indexY2 += 4;
}
}
}
/// <summary>
/// Mutate the specified individual.
/// Shifted line
/// </summary>
/// <param name="individual">The individual.</param>
/// <param name="mutation_probabilty">The probability to mutate each indiviudal.</param>
public override void Mutate(IIndividual individual, float mutation_probabilty)
{
var indexes = FastRandom.GetInts(mutateRate, 0, individual.Length);
foreach (var index in indexes)
{
var oldGene = individual.GetGene(index);
// line endPoints shift
var currShift = FastRandom.GetInt(-shift, shift);
// sets new gene
individual.ReplaceGene(index, oldGene + currShift);
}
}