transform.position on basis of rotation

You need to provide significantly more information before someone can give you a targeted solution. A drawing would be very helpful. If I read between the lines and guess a bit, what you need to do is:

• Create an empty game object and place it at the pivot point of your rotation.

• Position your visible object at "same length' away from the pivot point.

• $$anonymous$$ake the visible object a child of the empty game object.

• Use whatever code to rotate the empty game object. You can set the transform.eulerAngles of the empty game object.

There are other solutions like Transform.RotateAround() and using a Quaternion to rotate a vector and then using the vector to position the object. This is all guesswork on my part.

yes sory i try it explain... i create animation enythink how dust around my starship in space, when i go front it work good it going from up to down and again but when i rotate my ship(player) it still transform to same direction not front of my ship. here is script:

 #pragma strict
 
 var animator : Animator;
 static var speed = 0;
 var mypos : Transform;
 var playerpos : Transform;
 var maxdist = 20;
 var newpos : Vector3;
 
 function Start () {
     animator = GetComponent("Animator");
 }
 
 function Update () {
     if(speed > 30) {
         animator.SetBool("start",false);
     }
     else {
         animator.SetBool("start",true);
     }
     
     newpos = mypos.position + Vector3(0,50,0);
     
     var newspeed = speed * (-1);
     mypos.transform.rotation = playerpos.rotation;
     rigidbody2D.velocity = transform.up * newspeed * Time.deltaTime;
 }
 function OnTriggerExit2D(col : Collider2D){
     if (col.gameObject.tag == "PrachSpawner") {
         mypos.transform.position = newpos;
     }
 }

it still not done i only try how it work.