public Starfield()
{
MinMaxPair r = new MinMaxPair(5, 25);
MinMaxPair z = new MinMaxPair(1, 2);
this.InitLocation(r, z);
}
/// <summary>Chooses a starting location for a start</summary>
private void InitLocation(MinMaxPair r, MinMaxPair z)
{
Randomizer rand = new Randomizer();
// choose a size
double radius = r.Min + (r.Max - r.Min) * rand.Generator.NextDouble();
// choose an angle position
double polar = rand.RandomAngle();
// set the X,Y position
this._position = new Point(radius * Math.Cos(polar), radius * Math.Sin(polar));
// set the Z position
this._dis = z.Min + (z.Max - z.Min) * rand.Generator.NextDouble();
}