How do I move an object relative to another object and the camera,How do I move an instantiate relative to another object and the main camera

Questions & Answers
1

Im newish to unity and am trying to make a “space station” object where you click to where you would like the object to spawn and it is instantiated there with the position and rotation being rounded (like snapped to a grid) and the code i have come up with snaps but for only the first click any help would be appreciated.

The code I have is:

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class SpawnOnMouseclick : MonoBehaviour {

Ray myRay;      // initializing the ray
RaycastHit hit; // initializing the raycasthit
public GameObject objectToinstantiate;
public GameObject JustSpawned;
public GameObject me;
    
void Update()
{
    myRay = Camera.main.ScreenPointToRay(Input.mousePosition); // telling my ray variable that the ray will go from the center of 
                                                               // my main camera to my mouse (This will give me a direction)

    if (Physics.Raycast(myRay, out hit))
    { // here I ask : if myRay hits something, store all the info you can find in the raycasthit varible.
      // things like the position where the hit happend, the name of the object that got hit etc..etc..

        if (Input.GetMouseButtonDown(0))
        {// what to do if i press the left mouse button
            JustSpawned = Instantiate(objectToinstantiate, hit.point, Quaternion.identity);// instatiate a prefab on the position where the ray hits the floor.
            print(hit.point);// debugs the vector3 of the position where I clicked
            //JustSpawned.transform.LookAt(me.transform.position);

            JustSpawned.transform.SetPositionAndRotation(new Vector3(Mathf.RoundToInt(JustSpawned.transform.position.x), Mathf.RoundToInt(JustSpawned.transform.position.y), Mathf.RoundToInt(JustSpawned.transform.position.x)), new Quaternion(Mathf.CeilToInt(JustSpawned.transform.rotation.x), Mathf.CeilToInt(JustSpawned.transform.rotation.y), Mathf.CeilToInt(JustSpawned.transform.rotation.z), Mathf.CeilToInt(JustSpawned.transform.rotation.x)));
            //JustSpawned.transform.Translate(transform.forward, Space.Self);
            JustSpawned.transform.LookAt(me.transform.position);
            JustSpawned.transform.SetPositionAndRotation(new Vector3(Mathf.RoundToInt(JustSpawned.transform.position.x), Mathf.RoundToInt(JustSpawned.transform.position.y), Mathf.RoundToInt(JustSpawned.transform.position.x)), new Quaternion(Mathf.RoundToInt(JustSpawned.transform.rotation.x), Mathf.RoundToInt(JustSpawned.transform.rotation.y), Mathf.RoundToInt(JustSpawned.transform.rotation.z), Mathf.RoundToInt(JustSpawned.transform.rotation.x)));
            JustSpawned.transform.Translate(transform.forward, Space.Self);
        }// end upMousebutton
    }// end physics.raycast    
}// end Update method

}
,

2

I Forgot to mention Im putting this script on my players camera, and the me variable is to get the position of the player object (currently just the player camera) the prefab for the object i"m spawning has no collider and is just a cube (for Now)