I’ve a category that’s an occasion supervisor, which is notifying different scripts of contact occasions. However, the issue is that whereas the primary public static occasion – SendInteraction – works, the second occasion, ShipDrag, doesn’t appear to be sending the place to the subscribed class. Instead, it simply prints a null reference error.

“NullReferenceException: Object reference not set to an occasion of an object
TouchScreenManager.Update () (at ../TouchScreenManager.cs:47)”

I’ve tried making the TouchScreenManager class a Singleton and eradicating references to the occasions as static, and as an alternative creating new situations in every subscribed class in Awake() however that does not work both. How can I repair it?

public class TouchScreenManager : MonoBehaviour
  { 
    #area occasions
    public delegate void SendInteraction(RecreationObject merchandise);
    public static occasion SendInteraction MoveScene;

    public delegate void ShipDrag(Vector2 place);
    public static occasion ShipDrag Drag;
    #endregion

    non-public Vector3 startPos;
    non-public Vector2 startPosition;
    non-public WaitForFixedUpdate waitForFixedUpdate = new WaitForFixedUpdate();

    void Awake()
    {
        EnhancedTouchHelp.Enable();
        TouchSimulation.Enable();
    }

    void Update()
    {
        if (Touch.activeFingers.Count == 1)
        {
            var contact = Touch.energeticTouches[0];

            if (contact.part == TouchSection.Began)
            {
                startPosition = contact.startScreenPosition;
                startPos = Camera.primary.ScreenToWorldPoint(contact.screenPosition);
                DragAndDrop(contact);
                CheckForInteraction(contact);
            }

            else if (contact.part == TouchSection.Moved)
            {
                Debug.Log("from the contact display screen supervisor:" + contact.screenPosition);
                Drag(contact.screenPosition); // PRINTS FINE HERE
            }
        }
    }

This script is subscribed to this occasion.

public class LineGenerator : MonoBehaviour
{
    public RecreationObject linePrefab;
    Line energeticLine;
    Vector2 capturedScreenPos;

    non-public void OnEnable()
    {
        TouchScreenManager.Drag += DrawLine;
    }

    non-public void OnDisable()
    {
        TouchScreenManager.Drag -= FullLine;
        
    }

    void DrawLine(Vector2 place)
    {
        RecreationObject newLine = Instantiate(linePrefab);
        energeticLine = newLine.GetComponent<Line>();
        capturedScreenPos = place;
        Debug.Log("from the road generator: " + place); // NULL REF HERE
    }
}
````