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Question by Cykid · Aug 11, 2016 at 01:01 PM · c#tilemapresources.loadprefab-instance

Resources.load allways returns NULL but the Path seems to be correct

Hey Guys, I try to create a 2D Tilemap using prefabs for the Tiles.

But it seems like that the function cant find my prefab. Maybe you see what im doing wrong?

 using UnityEngine;
 using System.Collections;
 
 public class roomController : MonoBehaviour {
     GameObject[][] rooms;
     public GameObject Troom;
     int rows = 3;
     int entrys = 4; 
 
     // Use this for initialization
     void Start () {
 
         Troom = Resources.Load<GameObject>("room"); 
 
         for (int x = 0; x<rows; x++)
         {
             for (int y = 0; y<entrys; y++)
             {
                 rooms[x][y] = Instantiate(Troom, new Vector3(x * 64, y * 64, 0), Quaternion.identity) as GameObject;
             }
         }
 
     }
     
     // Update is called once per frame
     void Update () {
     
     }
 }

alt text

Thanx alot!

room.png (19.7 kB)
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Answer by DiegoSLTS · Aug 11, 2016 at 02:30 PM

Can you show us what you see in the inspector when you select the "room" asset?

Also, I can imagine the answer for this, but can you share the error message you're getting or explain the incorrect behaviour you're seeing?

Anyway, from what you say I guess you're having a null pointer exception, but you have another problem in your script that's not related to the resource being loaded or not. Your "rooms" array is never initialized, so rooms[x][y] is not valid. Add this Awake method and see what happens:

 void Awake() {
     rooms = new GameObject[rows,entrys];
 }

EDIT: Also, I have problems using [][] for 2D arrays. It works when I use [,], so maybe you also need to change:

 GameObject[][] rooms;

to:

 GameObject[,] rooms;

and:

 rooms[x][y]...

to:

 rooms[x,y]...
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