private void spiralLayout()
{
int speciesIdx = 0;
foreach (var species in PlantTypes)
{
double theta = _random.NextDouble() * 2 * Math.PI;
double dtheta = (_random.NextDouble()) / 15 + .1;
dtheta *= _random.Next(2) == 1 ? -1 : 1;
int x;
int y;
double r = 6;
for (int i = 0; i < species.Count; i++)
{
r += (Height - 6) / (double)(2 * species.Count);
theta += dtheta;
x = (int)(Width / 2 + r * Math.Cos(theta));
y = (int)(Width / 2 + r * Math.Sin(theta));
var plant = Plants[speciesIdx * species.Count + i];
plant.Reset();
plant.X = x;
plant.Y = y;
}
speciesIdx++;
}
}