public void AddStars(Random r, int nos, InfinityPlayer player)
{
// flo
NumberofStars = nos;
for (int i = 0; i < NumberofStars; i++)
{
var pos = Size * new Vector(r.NextDouble(), r.NextDouble());
var add = true;
// check if star is behind planet
foreach (Tile tile in Neighbors)
{
foreach (Planet planet in tile.Planets)
{
if ((tile.Position + planet.Position - Position - pos).Length <= planet.Radius)
{
add = false;
break;
}
}
}
if (add)
{
Star newStar = new Star(pos);
Stars.Add(newStar);
}
}
}
public void DiscoverPlanets(InfinityPlayer player)
{
foreach (Tile tile in Neighbors)
{
foreach (Planet planet in tile.Planets)
{
planet.Explore(tile.Position, player);
}
}
}
public void DiscoverStars(InfinityPlayer player)
{
foreach (Tile tile in Neighbors)
{
foreach (Star star in tile.Stars)
{
if ((tile.Position + star.Position - player.Position).Length < player.View)
{
star.IsDiscovered = true;
}
}
}
}
public void Explore(Vector posTile, InfinityPlayer player)
{
var p = player.Position - posTile;
var v = player.View;
var pp = Position - p;
var d = pp.Length;
if (d < v + Radius && !IsFullyDiscovered)
{
var a = (Radius * Radius - v * v + d * d) / (2 * d);
var p2 = Position - a * pp / d;
var h = Math.Sqrt(Radius * Radius - a * a);
var x1 = p2.X + h * (p.Y - Position.Y) / d - Position.X;
var x2 = p2.X - h * (p.Y - Position.Y) / d - Position.X;
var y1 = p2.Y - h * (p.X - Position.X) / d - Position.Y;
var y2 = p2.Y + h * (p.X - Position.X) / d - Position.Y;
var alpha1 = Math.Atan2(y1, x1);
var alpha2 = Math.Atan2(y2, x2);
if (alpha1 < alpha2)
{
Alphas = Merge(Alphas, new Interval(alpha1, alpha2));
}
if (alpha1 > alpha2)
{
Alphas = Merge(Alphas, new Interval(alpha1, Math.PI));
Alphas = Merge(Alphas, new Interval(-Math.PI, alpha2));
}
if (Alphas.Count == 1 && Alphas[0].A == -Math.PI && Alphas[0].B == Math.PI)
{
IsFullyDiscovered = true;
}
}
}
