Network.Instantiate returning a transform?

Unity Engine
1

Hey, I’m playing around with the iphone multiplayer tutorials. Now I’m trying to keep track of objects I instantiate on the network in order to be able to destroy them using Network.Destroy()
Anyway, here is what i do in C#:

Object o=Network.Instantiate(obj, pos, rot, 0);
Debug.Log("instantiated object is "+o.ToString());
GameObject go=(GameObject)o;

This compiles all right, and when I run the game, my prefab is instantiated on the network properly.
Using the debug log, I can see that ‘o’ is of the expected type UnityEngine.Transform.

I’m getting a runtime error on the cast:
Cannot cast from source type to destination type

What am I doing wrong here? Can I not get a Transform of the instantiated object this way?

2

What is that supposed to do ? (I am still not familiar with C# syntax)

Try o.gameObject instead.

3

Well if o’s a Transform it’s not a GameObject so you can’t cast it to a GameObject.

So cast o to a Transfrom and get the GameObject reference from the Transform.

Transform tform = (Transform)o;
GameObject go = tform.gameObject;
4

instantiate returns what you throw in.

if you throw a transform handle in, it will return a transform handle. if you throw a gameobject in, it will return a game object

in both cases you need to cast it to the corresponding class

5

Hey thanks Dreamora,

I’m new to unity so I guess I must have overlooked checking the class hierarchy in the documentation precisely :slight_smile:

Anyway, so far so good, this product really rocks!!

6

Also, you are going to run into problems using Network.Instantiate (or Object.Instantiate) on mobile because it dynamically allocates memory. Unless its just for the player, you should probably create a pool. I say to you 3 years later.

7

Tip: you also need to have 3 types Instantiating

  • one for yourself (the player) to enter the scene,
  • one for the NPCs you might have on the scene and
  • for other players.
  1. Yourself - has camera + controller
  2. NPCs - no camera + collider + network controller.
  3. Other player - no camera + collider + network controller linked to other player.