protected override void OnUpdateFrame(FrameEventArgs e)
{
_elapsed += e.Time;
var toRemove = new HashSet <IActor>();
var view = new Vector4(0, 0, -2.4f, 0);
var outOfBoundsAsteroids = 0;
var removedAsteroids = 0;
foreach (var actor in _actors)
{
actor.Update(_elapsed, e.Time);
if ((view - actor.Position).Length > 2)
{
toRemove.Add(actor);
if (actor is AsteroidActor)
{
outOfBoundsAsteroids++;
}
}
if (!(actor is ICollidable c))
{
continue;
}
var collisions = c.CollidesWith(_actors).ToList();
if (!collisions.Any())
{
continue;
}
if (actor == _player)
{
foreach (var a in _actors)
{
toRemove.Add(a);
}
_gameOver = true;
}
else
{
toRemove.Add(actor);
foreach (var asteroid in collisions)
{
if (!toRemove.Add(asteroid) || !(asteroid is AsteroidActor a))
{
continue;
}
_score += a.Points;
Console.WriteLine($"Got one! Your score is now {_score}");
removedAsteroids++;
}
}
}
foreach (var actor in toRemove)
{
_actors.Remove(actor);
}
if (!_gameOver)
{
for (var i = 0; i < removedAsteroids; i++)
{
_actors.Add(_actorFactory.CreateRandomAsteroid());
_actors.Add(_actorFactory.CreateRandomAsteroid());
}
for (var i = 0; i < outOfBoundsAsteroids; i++)
{
_actors.Add(_actorFactory.CreateRandomAsteroid());
}
}
else if (!_gameOverSpawned)
{
_actors.Add(_actorFactory.CreateGameOver());
_gameOverSpawned = true;
}
HandleKeyboard();
}