I can't find a problem with a simple 'if != null' statement, Help please?

Questions & Answers
1

in my world generation and management script get this error…

the error:
NullReferenceException: Object reference not set to an instance of an object
World.PlaceBlock (Int32 x, Int32 y, Int32 BlockID) (at Assets/World/World.cs:95)
World+c__Iterator2.MoveNext () (at Assets/World/World.cs:84)
UnityEngine.MonoBehaviour:StartCoroutine(String)
World:Start() (at Assets/World/World.cs:27)

caused by this:

            if(map[x,y].ItemTransform != null) // Line 93
            {
                Destroy(map[x,y].ItemTransform.gameObject);
            }

this is everything to do with the ‘map’ variable

    public class Map
    {
        public Transform ItemTransform;
        public int ID;

        public Map(Transform ObjectTransform, int objectID)
        {
            ObjectTransform = ItemTransform;
            ID = objectID;
        }
    }
    public Map[,] map = new Map[30, 10];

[15112-script.zip|15112]

help would much appreciated, thank you

2

Wrong order:

 public Map(Transform ObjectTransform, int objectID)
 {
   // ObjectTransform = ItemTransform; // this is the wrong way
   ItemTransform = ObjectTransform;
   ID = objectID;
 }

Thus ItemTransform was always null.