//Mutating shape by changing number of points or changing their position
//TODO change mutation rates to variables
public void Mutate(EvoDrawing parent)
{
foreach (var point in shapePoints)
{
point.Mutate(parent);
}
//Add point to shape
if (shapePoints.Count < MaxPoints && Numbers.ProbabilityFulfilled(Numbers.AddPointMutationProbability))
{
parent.NeedRepaint = true;
EvoPoint additionalPoint = new EvoPoint();
int i = Numbers.GetRandom(1, shapePoints.Count - 1);
additionalPoint.X = Numbers.GetAverage(shapePoints[i - 1].X, shapePoints[i].X);
additionalPoint.Y = Numbers.GetAverage(shapePoints[i - 1].Y, shapePoints[i].Y);
shapePoints.Insert(i, additionalPoint);
}
//Delete point
if (shapePoints.Count > MinPoints && Numbers.ProbabilityFulfilled(Numbers.RemovePointmutationProbability))
{
parent.NeedRepaint = true;
shapePoints.Remove(
shapePoints.ElementAt <EvoPoint>(
Numbers.GetRandom(0, shapePoints.Count)));
}
color.Mutate(parent);
}
//Constructor creating a shape in memory
public EvoShape(int minPoints, int maxPoints)
{
MinPoints = minPoints;
MaxPoints = maxPoints;
color = new EvoColor();
shapePoints = new List <EvoPoint>();
var center = new EvoPoint();
for (int i = 0; i < MinPoints; i++)
{
int X = Math.Min(Math.Max(0, center.X + Numbers.GetRandom(-3, 3)), Numbers.MaxWidth);
int Y = Math.Min(Math.Max(0, center.Y + Numbers.GetRandom(-3, 3)), Numbers.MaxHeight);
shapePoints.Add(new EvoPoint(X, Y));
}
}
