Controlling gameObject inside another gameObject script

Questions & Answers
1

My players instantiates bullet that track’s his position in update(bullet follows player according to its position).
The problem is that bullets position does not change and I don’t wanna create another script on bullet just for tracking.

public class player : MonoBehaviour {

public GameObject Bullet;
Vector3 startPosition,currentPosition;

// Use this for initialization
void Start () {
	startPosition = new Vector3 (gameObject.transform.position.x, gameObject.transform.position.y, 0);
	Instantiate (Bullet, startPosition, Quaternion.identity);


}

// Update is called once per frame
void Update () {

	currentPosition = new Vector3 (gameObject.transform.position.x, gameObject.transform.position.y, 0);
	Bullet.transform.position = currentPosition;

}

Thanks in advance.

2

If what you want is to have Bullet following the player around, does it work if you assign the instantiated bullet to a variable and use that to update it’s position, doing something like this?

public class player : MonoBehaviour {
 private GameObject instantiatedBullet;
 public GameObject Bullet;
 Vector3 startPosition,currentPosition;
 
 // Use this for initialization
 void Start () {
     startPosition = new Vector3 (gameObject.transform.position.x, gameObject.transform.position.y, 0);
     instantiatedBullet = Instantiate (Bullet, startPosition, Quaternion.identity) as GameObject;
 }
 
 // Update is called once per frame
 void Update () {
     currentPosition = new Vector3 (gameObject.transform.position.x, gameObject.transform.position.y, 0);
     instantiatedBullet.transform.position = currentPosition;
 }