Unity Make a 2D object look at the mouse position
public class LookAtMouse : MonoBehaviour
{
void Update()
{
Vector3 mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
Vector2 direction = mousePosition - transform.position;
float angle = Vector2.SignedAngle(Vector2.right, direction);
transform.eulerAngles = new Vector3 (0, 0, angle);
}
}