public MS_SetAsteroidDensity(int timeStamp, Asteroid.AsteroidDensity density)
: base(CommandID.SetAsteroidDensity, timeStamp)
{
z_density = density;
}
// Retrieves a new asteroid from the pool. If the pool is empty, it creates one from scratch.
public static Asteroid getNewAsteroid(Vector2 position, int size, float speed, Texture2D image)
{
Rectangle viewport = StageManager.GetViewport();
Asteroid asteroid; ;
// if there are any enemies in the pool, use one of them
if (zs_pool.Count > 0)
{
asteroid = zs_pool[zs_pool.Count - 1];
asteroid.Sprite = (image==null ? zs_images[RandomGen.Next(zs_images.Count)] : image);
asteroid.Size = size;
zs_pool.RemoveAt(zs_pool.Count - 1);
}
else
asteroid = new Asteroid(image,size); // pool was empty, so create a new enemy
asteroid.Speed = speed;
asteroid.Direction = MathHelper.Lerp(1.35f, 1.65f, (float)RandomGen.NextDouble()) * MathHelper.Pi;
if (position == Vector2.Zero)
asteroid.Position = new Vector2(RandomGen.Next(viewport.Width), -RandomGen.Next(viewport.Height/5));
else
asteroid.Position = position;
asteroid.IsAlive = true;
z_activeAsteroids++;
return asteroid;
}
