/**
* Returns a pooled asteroid
*/
public Asteroid GetAsteroid(Enum.AsteroidSize size)
{
if (this.asteroidObjectPool.ContainsKey(size))
{
for (var index = 0; index < this.asteroidObjectPool[size].Count; index++)
{
if (!this.asteroidObjectPool[size][index].IsActive())
{
return(this.asteroidObjectPool[size][index]);
}
}
}
return(this.AddAsteroidToObjectPool(size));
}
/**
* Adds an asteroid to the object pool by the given size
*/
private Asteroid AddAsteroidToObjectPool(Enum.AsteroidSize size)
{
var asteroidSizeIndex = (int)size;
var asteroidGameObject = Instantiate(asteroidPrefabs[asteroidSizeIndex]) as GameObject;
asteroidGameObject.name = this.asteroidPrefabs[asteroidSizeIndex].name;
asteroidGameObject.transform.SetParent(this.asteroidContainer, false);
var asteroid = asteroidGameObject.GetComponent <Asteroid>();
if (!this.asteroidObjectPool.ContainsKey(size))
{
this.asteroidObjectPool.Add(size, new List <Asteroid>());
}
this.asteroidObjectPool[size].Add(asteroid);
return(asteroid);
}
/**
* Spawns an asteroid
* If position and velocity were not set -> spawn outside the viewport and target the player
* If velocity is not set -> use random velocity
*/
public void SpawnAsteroid(Enum.AsteroidSize size, Vector2 position = default(Vector2), Vector2 velocity = default(Vector2))
{
if (position == default(Vector2) && velocity == default(Vector2))
{
var playerPosition = GameManager.Instance.player.transform.position;
var spawnPosition = GameManager.Instance.GetValidSpawnCoordinateOutsideTheViewport();
playerPosition.x -= spawnPosition.x;
playerPosition.y -= spawnPosition.y;
position = spawnPosition;
velocity = playerPosition.normalized;
}
else if (velocity == default(Vector2))
{
velocity = new Vector2(Random.Range(-1, 1f), Random.Range(-1f, 1f));
}
var asteroid = AsteroidManager.Instance.GetAsteroid(size);
asteroid.Activate(position, velocity);
}
