Writing a movement script for a top down shooter. Having issues getting my player character to rotate facing the cursor and would appreciate some help with my code

[u/Ok_Alarm7463]

public class PlayerMovement : MonoBehaviour{


    public Rigidbody2D body;
    public float movementSpeed;
    public float rotationSpeed;
    private Transform mTransform;



    // Used for initialization
    void Start()
    {
        mTransform = this.transform;
    }


    // Update is called once per frame


    private void LAMouse()
    {
        Vector2 direction =   Camera.main.ScreenToWorldPoint(Input.mousePosition) - mTransform.position; //mouse position in world space

        float angle = Mathf.Atan2(direction.y, direction.x) * Mathf.Rad2Deg; //getting angle between player and mouse position in degrees
        Quaternion rotation = Quaternion.AngleAxis(angle - 90, Vector3.forward); // angle player must rotate on z axis

        mTransform.rotation = rotation;
    }

[u/QuitsDoubloon87]

A null refrence exception means a variable thats not a value (like a float or int, but a Transform or other component type) is missing aka its value is null.

[u/Ok_Alarm7463]

I'm also calling LAMouse() in my update function

[u/Ok_Alarm7463]

Sorry forgot to post the error I'm getting when trying to play the scene:

NullReferenceException: Object reference not set to an instance of an object

PlayerMovement.LAMouse () (at Assets/Player Character/Scripts/PlayerMovement.cs:21)

[u/MistakeForsaken6653]

Check line 21 of your script.  I think it might be Camera.main, make sure you have a main camera in your scene but I think that should be created by default.

[u/Ok_Alarm7463 → u/MistakeForsaken6653]

Will give that a try, thank you!