Following the newly created object

Post your code, what have you done so far?

If you have to access the gameObject/script for the closest door to the player, I'd suggest having a list of references of all the doors sorted by distance to the player.
For example, an instance of List<DoorScript> doorsList where all doors are referenced ( can be done via inspector or at runtime if your code generates them dynamically).
To access the closest one i'd do something like doorsList[0] and once the door has been used and the player moves to the next one, you can either control by having an index and do doorsList[currentDoor] or remove onces used by doing doorsList.RemoveAt(0) and doorsList[0];

@FernandoHC It's a good idea, I' ll try this later and I will say if it worked. In other words, "if I can do it at all." (ahh don't even know what I'm writing)

@misher // This is my "levelGenerator" code

     private something rooms; //Reference to the GameObject Array (public GameObject[] platforms)
     private int rand;
     public float y_axis = 0.8f;
     private int platformLimit = 0;
     private Transform door;
 
     void Start()
     {
         rooms = GameObject.FindGameObjectWithTag("rooms").GetComponent<something>();      
     }
 
     void Update()
     { 
         if(platformLimit < 10){
             rand = Random.Range(0, rooms.platforms.Length);
             Instantiate(rooms.platforms[rand], new Vector3(-12.2f, y_axis, 0), rooms.platforms[rand].transform.rotation);
 
             y_axis += 1.2f;
             platformLimit++; 
         }    
     }

Each of doors (dynamically created) has Tag: rooms attached to them

Please describe better the gameplay and question. I assume this: 1. You start with only player object, user can move it left or right and jump. 2. On Scene loaded, your level generator starts to generate "floors" (2 sections with a hole in between them at random position), 3. Generator only make several floors, then, only when player progress to the next floor, generator will add one more floor at the top (and destroy the bottom one) 4. When player jumps into the hole between 2 sections of the floor above, this should trigger progressing to the next floor (how exactly you have implemented that)

Yes exactly ! Everything as you said in addition to point 3. $$anonymous$$y script generated the floors infinitely and I had to limit it to 10 (btw. I want to do it as you said. In the sense that the camera moves higher, the floors at the top will be added and the bottom ones will be removed)

$$anonymous$$y problem is how to find a newly created object -> read it's position -> and on this basis, deter$$anonymous$$e the player direction vector