BulletML for Unity

Documentation: Integration with a pooling system

BulletML for Unity does not provide a pooling system. We think there are more than enough great pooling plugins on the Asset Store.

However, you can easily bind our plugin with another one.

Here’s a simple script skeleton to give you an idea of how you can hook BulletML for Unity into a pooling plugin, like Core GameKit:

public class BulletPoolScript : MonoBehaviour
{
  public void Start()
  {
    var bulletManager = FindObjectOfType<BulletManagerScript>();
    if (bulletManager != null)
    {
      bulletManager.OnBulletSpawned += OnBulletSpawned;
      bulletManager.OnBulletDestroyed += OnBulletDestroyed;
    }
  }

  public BulletScript OnBulletSpawned(BulletObject bullet, string bulletName)
  {
    // Get a GameObject from the pool.
    // bulletName and bullet can help you identify the bullet you want.
    // TODO: Your pool here.
    GameObject go = MyPool.Get();

    // Make sure this GameObject has a BulletScript and return it.
    // BulletScript can be added on the fly,
    // there is no special parameter to pass.
    var bulletScript = go.GetComponent<BulletScript>();
    if (bulletScript == null)
    {
      bulletScript = go.AddComponent<BulletScript>();
    }

    return bulletScript;
  }

  public void OnBulletDestroyed(GameObject bullet)
  {
    // Recycle your GameObject
    // 1/ If you need the label, you can retrieve it this way.
    var bulletScript = bullet.GetComponent<BulletScript>();
    if (bulletScript != null)
    {
      BulletPool pool = null;
      var bulletName = bulletScript.Bullet.Label.ToLower();

      // TODO: Your pool here.
      MyPool.Recycle(bulletScript);
    }

    // 2/ Otherwise you have a direct reference to the bullet's GameObject.
    // TODO: Your pool here.
    MyPool.Recycle(bullet);
  }
}

To be sure no bullets are instantiated without pooling, be careful to change the “Script Execution Order” menu to:

BulletManagerScript
Your BulletML + pooling script
BulletSourceScript