Unity3D: delete spawn objects

Question

I have a 2d game where there is an original enemy ninja.
I created spawning script to clone my original ninja. I then placed it on my main camera to make my ninja clone spawn within the main camera view. My original ninja also has a script that after a few seconds it will delete.
I realize that deleting my original ninja cause my clone ninjas not appear, but I want to delete any cloned objects so that I won't over run my project.
Is there a way were I can delete the spawn clone ninjas without touching the original ninja. Or hiding my original ninja in the inspector without hiding the spawn clones.
Here's my destroy ninja code:

private IEnumerator Killninja() {

   yield return new WaitForSeconds (4f);
     Destroy (gameObject);
}

    void Update () {
       StartCoroutine (Killninja ());
    }

Does the main ninja have to be actually in the game or could he just be a prefab? Otherwise you could e.g. include a public bool into the script like `public bool isClone = true;`, set it to false in the inspector for original and check in update `if(isClone){ StartCoroutine... }` — Gunnar B., Mar 26 '16 at 18:19
Also you should include a state bool around your `StartCoroutine` so it only starts once. Currently it starts every frame. It will still get destroyed with the first, but you want only one. — Gunnar B., Mar 26 '16 at 18:24

score 0 · Accepted Answer · answered Mar 26 '16 at 20:03

0

If you don't want your original Ninja to be in the scene, don't have it in the scene. Drag it from the scene into the Project Explorer. This will create a Prefab of the Ninja. You can then delete the Ninja from the scene.

Now have a ObjectSpawner.cs script which has the task of spawning a Prefab. Ninja, like:

public class ObjectSpawner : MonoBehaviour
{
    public GameObject prefab;

    void Start()
    {
        GameObject.Instantiate(prefab, transform.position, transform.rotation);
    }
}

Assign ObjectSpawner to an empty GameObject in the Scene, and assign the Ninja Prefab you created earlier to its prefab field. This will spawn one Ninja as soon as the game starts, at the position of your NinjaSpawner object.

Your Ninja.cs script will be responsible for destroying the Ninja once its time is up:

public class Ninja : MonoBehaviour
{
    void Start()
    {
        StartCoroutine(DestroyDelayed());
    }

    IEnumerator DestroyDelayed()
    {
        yield return new WaitForSeconds(4f);
        Destroy(gameObject);
    }
}

Make sure that script is assigned to your Ninja object.

answered Mar 26 '16 at 20:03

Thomas Hilbert

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Thank you, it worked but I want to spawn more than once ninja every 100 seconds, like a timer, instead of having it spawn straight away within the main camera's view, do you know who to do that? Thank you once again it helped – Jessca Stone Mar 27 '16 at 18:11
Everything you need is already shown in my examples. Just mix some of the second script's code with the first script's code and you have what you need. – Thomas Hilbert Mar 27 '16 at 19:04
Is this method still recommended if you will be spawning tons of different objects? Is manually maintaining all the drag/drop references in inspector going to cause headaches down the road? – pspahn Dec 13 '16 at 03:13
If you want multiple objects to spawn, don't have multiple spawn scripts, but let the one script simply spawn several objects. – Thomas Hilbert Dec 14 '16 at 15:14

Unity3D: delete spawn objects

1 Answers1