Moving a list of objects to their starting position

Unity Engine
1

So I’m trying to move a chain made of links to the location they start at but I cant get it to work. I have a list of game objects at the start I make a list of transforms from the game objects in the second list. I then call a method that equals the transform of each object on the list to its transform at the start. I did some debugging and the transform positions are the same in the debug window but for some reason the objects are not moving / resetting to their original position. Thanks in advance for anyone that can help.

[SerializeField] List<GameObject> rightChainList;
[SerializeField] List<Transform> rightChainStartPosList;

private void Start()
    {
        foreach (GameObject chain in rightChainList)
        {
            rightChainStartPosList.Add(chain.transform);
        }
    }

private void MoveChainsToStartPosition()
    {
        int startPosIndex = 0;
        foreach (GameObject chain in rightChainList)
        {
            chain.transform.localPosition = rightChainStartPosList[startPosIndex].transform.localPosition;
            chain.transform.localRotation = rightChainStartPosList[startPosIndex].transform.localRotation;
            chain.gameObject.SetActive(false);
            startPosIndex++;
        
        }
    }
2

Transforms are a reference type, in this example, you are caching a reference to the transform.
Line 17, chain.transform is same transform as rightChainStartPosList[startPosIndex].transform

you need something like

[SerializeField] List rightChainStartPosList;
[SerializeField] List rightChainStartRotList;

  • foreach (GameObject chain in rightChainList)

  • {

  • rightChainStartPosList.Add(chain.transform.localposition);

  • rightChainStartRotList.Add(chain.transform.localrotation);

  • }

3

That did it.
So just for clarify: If I reference a transform of an object it will always be its current location and rotation and scale . You can only pull information out of it and save it in other locations?

Sorry If I’m not using the correct words pretty new to programming.

4

Yeah, exactly, so the following would be true
Gameobject MyObject;
Transform First = MyObject.transform;
First.position = Vector3.zero;
Transform Second = MyObject.transform;
Second.position = Vector3.one;

First.position would now equal Vector3.one, because First and Second are referencing the same Transform object (object as in the OOP term, hopefully not making things too confusing).