Room randomization

Question

hey, my game needs randomness. ive made the rooms randomly spawn when you go thro a door but i dont know how to destroy the last one after you go to a new one plz can you help?

Video

https://youtu.be/SkmpNhlMR38

Code

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class Doors : MonoBehaviour
 {
     public GameObject[] Rooms;
     [Space]
     [Space]
     public Transform player;
 
     public Animator fade;
 
     public Transform RoomPos;
 
     public Vector3 SpawnPos;
   
     void OnCollisionEnter2D(Collision2D other)
     {
         
         if (other.gameObject.CompareTag("Door"))
         {
             fade.SetTrigger("Fade");
 
             Invoke("ChangePos", 0.5f);
 
             player.position = new Vector3(0f, 0f, 0f);
 
 
         }
 
          
     }

 public void ChangePos()
 {
 
     Instantiate(Rooms[Random.Range(0, Rooms.Length)], RoomPos.position, RoomPos.rotation);
 }

Answer 1

@joshbowden42 That should work. If you have any question I'll respond to you tomorrow.

 public class Doors : MonoBehaviour
 {
     public GameObject[] Rooms;
     [Space]
     [Space]
     public Transform player;
 
     public Animator fade;
 
     private GameObject currentRoom;
 
     private GameObject newObject;
 
     public Transform roomSpawnPosition;
 
 
     void Start()
     {
         currentRoom = Instantiate(Rooms[Random.Range(0, Rooms.Length)], roomSpawnPosition.position, roomSpawnPosition.rotation);
 
     }
 
     void OnCollisionEnter2D(Collision2D other)
     {
 
         if (other.gameObject.CompareTag("Door"))
         {
             fade.SetTrigger("Fade");
 
             Invoke("ChangePos", 0.5f);
 
             player.position = new Vector3(0f, 0f, 0f);
 
 
         }
 
 
     }
 
     public void ChangePos()
     {
         newObject = Instantiate(Rooms[Random.Range(0, Rooms.Length)], roomSpawnPosition.position, roomSpawnPosition.rotation);
         if (currentRoom != null)
         {
             Destoy(currentRoom);
         }
         currentRoom = newObject;
     }
 }

Room randomization

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