instatiates at a bad position

Question

I have 10 prefabs that are instantiated by a cube with a the following script attached to it:

     public GameObject[] obj;
     public float spawn = 2f;
 
     // Use this for initialization
     void Start () {
         Spawn ();
     }
     void Update(){
         transform.Translate (Vector2.up * Time.deltaTime);
     }
     public void Spawn(){
             Instantiate (obj [Random.Range(0, obj.GetLength(0))],transform.position, Quaternion.identity);
         Invoke ("Spawn", spawn);
     }
 }

the problem is that some prefabs get instantiated at a bigger x, like to the side, some with a negative x which spawns them to the other side causing only part of them to be seen and other is out of bounds, how do i position them all on same x?

EDIT: all of the prefabs are instantiated at x = 0, but each prefab is to be centered has different x, such as 1, 0.5, -6.3...

Answer 1

Best Answer

Answer by ethestel · Apr 06, 2015 at 03:50 PM

Hello,

Instantiate method relies on position of its game objects transform, which you change by calling transfrom.Translate on every frame update.

You can assign a constant Vector3 to the newly Instantiated objects position

 //this will spawn all objects at 0,0,0 world coordinates
 Instantiate (obj [Random.Range(0, obj.GetLength(0))],new Vector3(0,0,0), Quaternion.identity);

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SirBoboHobo · Apr 06, 2015 at 04:26 PM 0

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my cube always goes up and up and up, i need it to spawn at the position the cube is, but i need the x to be 0, Vector3(0,0,0) just spawns all prefabs at same place.

ethestel · Apr 07, 2015 at 07:14 AM 0

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The Vector3 variable you're passing to that method specifies newly instantiated objects position. You can change Vector3's parameters to spawn the object wherever you want to.

  Instantiate (obj [Random.Range(0, obj.GetLength(0))],new Vector3(0,transform.position.y,transform.position.z), Quaternion.identity);

This will spawn that object on the same world coordinates with the game object this script is attached on.

SirBoboHobo · Apr 07, 2015 at 12:05 PM 0

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It instantiates at 0, some prefabs need like -6.3 to be on x=0, how can i access the transform.position.x of the prefab, each prefab has an x that i specified in order for it to be in the center, like 1.1, 6.3, and so on, how to specify that the place spawned is Vector2(x of the prefab, transform.position.y)

ethestel · Apr 07, 2015 at 02:52 PM 0

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It instantiates at 0, some prefabs need like -6.3 to be on x=0

I think you're talking about the difference between position and localPosition, but there's no way I can be certain about it. Can you supply your project files?

SirBoboHobo · Apr 07, 2015 at 03:27 PM 0

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I was building the prefabs in a different scene so i dont interrupt the main scene, so some aren't really in the middle, so they will be in the middle it needs to be like x=-6.3

instatiates at a bad position

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