How can I make this script work?

I have this script

Code (CSharp):

1. GameObject des = (GameObject) Instantiate(blackParticle, new vector3 (0,0,0), Quaternion.identity);
2.             Destroy ( des, 0.2f);

It gives me this error:
Cannot cast from source type to destination type.
I tryed a few things and searched around the forum but nothing really worked.

 

Casting needs the variable your assigning to be the same as what you instantiate - try using "var des" without "(GameObject)" instead of "GameObject des". Maybe that will work. I could be wrong though haha.

Is blackParticle a prefab gameobject?

 

Instead of

Code (csharp):

1. new vector3 (0,0,0)

it should be

Code (csharp):

1. new Vector3 (0,0,0)

or

Code (csharp):

1. Vector3.zero

 

Its a prefab particle effect

Edit: I tryed a few more things and still didnt get it to work

Code (CSharp):

1. var des = (GameObject) Instantiate(blackParticle, new Vector3 (0,0,0), Quaternion.identity);
2.             Destroy ( des, 0.2f);

This gives me a error saying "cant destroy a transform"

Then I tryed this. It dosent give me a error but it still dosent work.

Code (CSharp):

1. var des = (GameObject) Instantiate(blackParticle, new Vector3 (0,0,0), Quaternion.identity);
2.             Destroy ( des.gameObject, 0.2f);

 

I actually had a pretty long code in there but I just replaced it with new Vector(0,0,0) so I dont waste other peoples time...

 

If you do that, in your code, it wouldn't compile. Be careful when you post something else than you have in your actual code!

Could you show the declaration for blackParticle?

 

What do you mean with "declaration for blackParticle"?

 

It would be best to just show the complete script.

 

The SpriteRenderer dosen't show in blue, probably because the forum code isnt updated.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class Body : MonoBehaviour {
5.  
6.     public bool canRespawn;
7.     public Transform blackPartic;
8.     private SpriteRenderer sprt;
9.  
10.     void Start() {
11.         sprt = GetComponent<SpriteRenderer>();
12.     }
13.  
14.     void OnTriggerEnter2D(Collider2D coll) {
15.         if (coll.gameObject.tag == "Obstacles") {
16.             sprt.color = Color.clear;
17.             Invoke("RespawnReady", 1);
18.             GetComponent<PolygonCollider2D>().offset = new Vector2(0,50);
19.         }
20.  
21.         if (coll.gameObject.tag == "Bugs") {
22.             Destroy (coll.gameObject);
23.             var effect =  Instantiate (blackPartic, coll.gameObject.transform.position, Quaternion.identity);
24.             Destroy ( effect, 0.2f);
25.         }
26.     }
27.  
28.     void RespawnReady () {
29.         canRespawn = true;
30.     }
31.  
32.     void Respawn () {
33.         canRespawn = false;
34.         sprt.color = Color.white;
35.         Invoke("ImmuneOff", 1);
36.     }
37.  
38.     void ImmuneOff () {
39.         GetComponent<PolygonCollider2D>().offset = new Vector2(0,0);
40.     }
41.  
42.     void Update () {
43.         if (Input.GetMouseButtonDown(0)) {
44.             if (canRespawn == true) {
45.                 Respawn ();
46.             }
47.         }
48.     }
49. }

 

At line 7, you declare that blackPartic is a Transform. That means, you can only cast it to a Transform at line 23. You originally had it declared to be a Transform and then you made a cast to a GameObject. That doesn't work. Both need to be identical. It doesn't matter whether you use GameObject or Transform, but make sure it is consistently used.

 

Thanks for the help!
Its all working!