public void RecalculateConstellationPoints(ViewportFoV reference, bool calculateConnections)
{
// calculate all star positions for the constellation once and add them to the star collection for drawing if they're visible
foreach (var star in constellation.Stars)
{
var starPosition = star.Coords.XYProjection(reference);
star.Position = new PointF((float)starPosition.X, (float)starPosition.Y);
var isInBounds = !reference.IsOutOfViewportBounds(star.Position);
var contains = Stars.Contains(star);
if (isInBounds && !contains)
{
Stars.Add(star);
}
else if (!isInBounds && contains)
{
Stars.Remove(star);
}
}
if (calculateConnections)
{
// now we check what lines are visible in the fov and only add those connections as well
foreach (var starConnection in constellation.StarConnections)
{
var isInBounds = !(reference.IsOutOfViewportBounds(starConnection.Item1.Position) &&
reference.IsOutOfViewportBounds(starConnection.Item2.Position));
var contains = Points.Contains(starConnection);
if (isInBounds && !contains)
{
Points.Add(starConnection);
}
else if (!isInBounds && contains)
{
Points.Remove(starConnection);
}
}
var p = constellationCenter.XYProjection(reference);
CenterPoint = new PointF((float)p.X, (float)p.Y);
}
}
public void RemoveStar(Star star)
{
Stars.Remove(star);
}