JavaScript 3 Arrays questions

Questions & Answers
1

Hello guys, I want to start with Unity java script but I can`t understand it even after 2 years Action Script 3 coding. Can you help me?
I want to create a 2d array of game objects, so I wrote this:

public var grass:Transform;
public var gameobj : GameObject[];

function Start () {

    for (var y = 0.0; y < 10; y++) {
			for (var x = 0.0; x < 10; x++) {
				var sample = Mathf.PerlinNoise(1, 1);
				Instantiate(grass);
                grass.transform.position = Vector3 (x, y, 0);
                gameobj.Add(grass);
                //Debug.Log();
			}
	}
	
}

function Update () {

}

But it will not work, I don`t understand why. How do you correctly create game objects from library? How do you push them in arrays?

2

You are stuffing the prefab into the array, not the game object you create. Try this:

import System.Collections.Generic;

public var grass:Transform;
private var myList : List.<GameObject> = new List.<GameObject>();
 
function Start () {
 
    for (var y = 0.0; y < 10; y++) {
            for (var x = 0.0; x < 10; x++) {
                var sample = Mathf.PerlinNoise(1, 1);
                var go : GameObject = Instantiate(grass);
                go.transform.position = Vector3 (x, y, 0);
                gameobj.Add(go);
            }
    }
 
}

Note that your PerlinNoise() will always return the same value the way it is currently being called.