Instantiated object(child) to move according to Instantiated ParentObject's rotation.

Unity Engine
1

I have an Object(parent) having 4 spawn points around it which spawns stars. In the game, Parent object rotates but the Spawned stars don’t move according to Parent objects rotation. I have tried all the suggestions people have given in the forum.

public GameObject starPrefab;
        private GameObject newStarPrefab;
        public Transform[] starSpawnPoints;
  
        void Start () {
            if (!GameObject.FindGameObjectWithTag("Box"))
            {
                    RandomPoint();
            }
        }
  
        void RandomPoint()
        {
            int randomIndex = Random.Range(0, starSpawnPoints.Length);
  
            for (int i = 0; i < starSpawnPoints.Length; i++)
            {
                if (randomIndex == i)
                {
                    newStarPrefab =  Instantiate(starPrefab, starSpawnPoints[i].position, Quaternion.identity);
                    newStarPrefab.transform.parent = gameObject.transform;
                }
            }
        }

I have added this script to the Parent object which rotates after spawning.

2

The spawner stars are Particle Effects?
If so, have you checked the “Simulation Space” as “Local”, instead “World”?

3

And why you do this instead this?

void RandomPoint()
        {
            int randomIndex = Random.Range(0, starSpawnPoints.Length);

                    newStarPrefab =  Instantiate(starPrefab, starSpawnPoints[randomIndex ].position, Quaternion.identity);
                    newStarPrefab.transform.parent = gameObject.transform;

        }
4

no, Stars are not particle effects.

5

mhhh… maybe they have a RigidBody? In that case they follow the phisics instead parents

6

that code works here (and they rotate with parent)… so what is your starPrefab like?

7

it’s a normal 2D sprite. It does not have any other component yet.

8

No they do not have any additional component yet.

9

I have used “randomIndex != 1” In my previous project. I just made little changes in new one for my future convenience. :slight_smile:

 void RandomPoint()
        {
            int randomIndex = Random.Range(0, starSpawnPoints.Length);
            for (int i = 0; i < starSpawnPoints.Length; i++)
            {
                if (randomIndex != i)
                {
                    newStarPrefab =  Instantiate(starPrefab, starSpawnPoints[i].position, Quaternion.identity);
                    newStarPrefab.transform.parent = gameObject.transform;
                }
            }
10

You move the 2D Sprite? maybe some animation?

11

I closed Unity opened it again, now it’s working. Same script, nothing changed.

1 Like
12

LOL, the programmer method works always,
see you soon