如何在 unity3d & C# 中移动立方体？

Question

First of all I apologize that this texts looks so weird. It's my first time to use stackoverflow

I start to learn about Unity and C#.

And today I learn about move cube in unity, gonna review the script and I think i failed.

I put script in cube1 at Hierarchy, click the solution build at C# and run at unity. And didn't work.

public class TRAIN : MonoBehaviour
{
    // return cube1 to cube. cube1 is name of cube object in unity
    GameObject cube = GameObject.Find("cube1");   

    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        //move cube1 to z-axis at speed 1
        cube.transform.position += new Vector3(0, 0, 1);  
    }
}

How can I move cube1?

Answer 1

You can't call GameObject.Find() directly there, you should be getting an error in the console.

UnityException: Find is not allowed to be called from a MonoBehaviour constructor (or instance field initializer), call it in Awake or Start instead

Do it in the Awake() or Start() instead.

public class TRAIN : MonoBehaviour
{
    GameObject cube; 

    void Start()
    {
        cube = GameObject.Find("cube1");
    }