Instantiate Random Prefab From Folder

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1

So I’m trying to instantiate a random prefab from a folder full of prefabs. I’ve done a ton of reading and just cant figure it out. I think I am referring to the folder with my prefabs in it improperly. My prefabs are in Assets/Resources/Prefabs/Hallways. What am I doing wrong? here’s my code. P.S. any other optimization tips would be greatly appreciated.

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

public class HallScript : MonoBehaviour {

private GameObject target;
[SerializeField]
private float checkPoint;
[SerializeField]
private float position;
public GameObject hallPrefab;
private GameObject prefabClone;
private List<GameObject> HallList;
public GameObject[] HallListArray;

// Use this for initialization
void Start ()
{
    checkPoint = 0;
    target = GameObject.FindGameObjectWithTag("Player");
}

// Update is called once per frame
void Update () {
    position = gameObject.transform.position.z;
    gameObject.transform.position = new Vector3(0,0, target.transform.position.z);
    if (position >= checkPoint)
    {
        checkPoint = checkPoint + 40;
        spawnHall();
    }
}
void spawnHall()
{
    print("Parameter Met");
    HallListArray = Resources.LoadAll<GameObject>("HallPrefabs");
    HallList = HallListArray.ToList();
    hallPrefab = HallList[Random.Range(0, HallList.Count)];
    prefabClone = Instantiate(hallPrefab, new Vector3(0,0, checkPoint), Quaternion.identity) as GameObject;
}

}

1 Answer

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Some more info- The object this is attached to follows an object which constantly moves forward along the z axis. Every time said objects reach a certain interval a prefab of the next section is instantiated. It all worked fine until I tried to instantiate a random prefab from a folder rather than a preset prefab.