public void Mutate(IDnaDrawing drawing)
{
if (Tools.WillMutate(Settings.ActiveRedMutationRate))
{
Red = Tools.GetRandomNumber(Settings.ActiveRedRangeMin, Settings.ActiveRedRangeMax);
drawing.SetDirty();
}
if (Tools.WillMutate(Settings.ActiveGreenMutationRate))
{
Green = Tools.GetRandomNumber(Settings.ActiveGreenRangeMin, Settings.ActiveGreenRangeMax);
drawing.SetDirty();
}
if (Tools.WillMutate(Settings.ActiveBlueMutationRate))
{
Blue = Tools.GetRandomNumber(Settings.ActiveBlueRangeMin, Settings.ActiveBlueRangeMax);
drawing.SetDirty();
}
if (Tools.WillMutate(Settings.ActiveAlphaMutationRate))
{
Alpha = Tools.GetRandomNumber(Settings.ActiveAlphaRangeMin, Settings.ActiveAlphaRangeMax);
drawing.SetDirty();
}
}
public static double GetDrawingFitness(IDnaDrawing newDrawing, Color[,] sourceColors)
{
double error = 0;
using (var b = new Bitmap(Tools.MaxWidth, Tools.MaxHeight, PixelFormat.Format24bppRgb))
using (Graphics g = Graphics.FromImage(b))
{
Renderer.Render(newDrawing, g, 1);
BitmapData bmd1 = b.LockBits(new Rectangle(0, 0, Tools.MaxWidth, Tools.MaxHeight), ImageLockMode.ReadOnly,
PixelFormat.Format24bppRgb);
for (int y = 0; y < Tools.MaxHeight; y++)
{
for (int x = 0; x < Tools.MaxWidth; x++)
{
Color c1 = GetPixel(bmd1, x, y);
Color c2 = sourceColors[x, y];
double pixelError = GetColorFitness(c1, c2);
error += pixelError;
}
}
b.UnlockBits(bmd1);
}
return(error);
}
private void RemovePoint(IDnaDrawing drawing)
{
if (Points.Count > Settings.ActivePointsPerPolygonMin)
{
if (drawing.PointCount > Settings.ActivePointsMin)
{
int index = Tools.GetRandomNumber(0, Points.Count);
Points.RemoveAt(index);
drawing.SetDirty();
}
}
}
public void Mutate(IDnaDrawing drawing)
{
if (Tools.WillMutate(Settings.ActiveAddPointMutationRate))
{
AddPoint(drawing);
}
if (Tools.WillMutate(Settings.ActiveRemovePointMutationRate))
{
RemovePoint(drawing);
}
Brush.Mutate(drawing);
Points.ForEach(p => p.Mutate(drawing));
}
//Render a Drawing
public static void Render(IDnaDrawing drawing, Graphics g, int scale)
{
g.Clear(Color.Black);
if (drawing is DnaDrawing)
{
foreach (DnaPolygon polygon in (drawing as DnaDrawing).Polygons)
{
Render(polygon, g, scale);
}
}
else if (drawing is DnaCircleDrawing)
{
foreach (DnaCircle circle in (drawing as DnaCircleDrawing).Circles)
{
Render(circle, g, scale);
}
}
}
public void Mutate(IDnaDrawing drawing)
{
if (Tools.WillMutate(Settings.ActiveMovePointMaxMutationRate))
{
X = Tools.GetRandomNumber(0, Tools.MaxWidth);
Y = Tools.GetRandomNumber(0, Tools.MaxHeight);
drawing.SetDirty();
}
if (Tools.WillMutate(Settings.ActiveMovePointMidMutationRate))
{
X =
Math.Min(
Math.Max(0,
X +
Tools.GetRandomNumber(-Settings.ActiveMovePointRangeMid,
Settings.ActiveMovePointRangeMid)), Tools.MaxWidth);
Y =
Math.Min(
Math.Max(0,
Y +
Tools.GetRandomNumber(-Settings.ActiveMovePointRangeMid,
Settings.ActiveMovePointRangeMid)), Tools.MaxHeight);
drawing.SetDirty();
}
if (Tools.WillMutate(Settings.ActiveMovePointMinMutationRate))
{
X =
Math.Min(
Math.Max(0,
X +
Tools.GetRandomNumber(-Settings.ActiveMovePointRangeMin,
Settings.ActiveMovePointRangeMin)), Tools.MaxWidth);
Y =
Math.Min(
Math.Max(0,
Y +
Tools.GetRandomNumber(-Settings.ActiveMovePointRangeMin,
Settings.ActiveMovePointRangeMin)), Tools.MaxHeight);
drawing.SetDirty();
}
}
private void AddPoint(IDnaDrawing drawing)
{
if (Points.Count < Settings.ActivePointsPerPolygonMax)
{
if (drawing.PointCount < Settings.ActivePointsMax)
{
var newPoint = new DnaPoint();
int index = Tools.GetRandomNumber(1, Points.Count - 1);
DnaPoint prev = Points[index - 1];
DnaPoint next = Points[index];
newPoint.X = (prev.X + next.X) / 2;
newPoint.Y = (prev.Y + next.Y) / 2;
Points.Insert(index, newPoint);
drawing.SetDirty();
}
}
}
public void Mutate(IDnaDrawing drawing)
{
// TODO: Implement circle mutation
}