static void MutateShape( Random rand, DNA dna, Shape shape, TaskState task )
{
int maxOverlap = task.ProjectOptions.MaxOverlap;
shape.PreviousState = shape.Clone() as Shape;
switch( rand.Next( 9 ) ) {
case 0:
shape.Color = Color.FromArgb( (byte)rand.Next( task.ProjectOptions.MinAlpha, 256 ), shape.Color.R,
shape.Color.G, shape.Color.B );
dna.LastMutation = MutationType.ReplaceColor;
break;
case 1:
shape.Color = Color.FromArgb( shape.Color.A, (byte)rand.Next( 256 ), shape.Color.G, shape.Color.B );
dna.LastMutation = MutationType.ReplaceColor;
break;
case 2:
shape.Color = Color.FromArgb( shape.Color.A, shape.Color.R, (byte)rand.Next( 256 ), shape.Color.B );
dna.LastMutation = MutationType.ReplaceColor;
break;
case 3:
shape.Color = Color.FromArgb( shape.Color.A, shape.Color.R, shape.Color.G, (byte)rand.Next( 256 ) );
dna.LastMutation = MutationType.ReplaceColor;
break;
case 4:
case 5:
shape.Points[rand.Next( shape.Points.Length )].X = rand.NextFloat( -maxOverlap,
task.ImageWidth + maxOverlap );
dna.LastMutation = MutationType.ReplacePoint;
break;
case 6:
case 7:
shape.Points[rand.Next( shape.Points.Length )].Y = rand.NextFloat( -maxOverlap,
task.ImageHeight + maxOverlap );
dna.LastMutation = MutationType.ReplacePoint;
break;
case 8:
shape.Points[rand.Next( shape.Points.Length )].X = rand.NextFloat( -maxOverlap,
task.ImageWidth + maxOverlap );
shape.Points[rand.Next( shape.Points.Length )].Y = rand.NextFloat( -maxOverlap,
task.ImageHeight + maxOverlap );
dna.LastMutation = MutationType.ReplacePoints;
break;
}
}
