private void Start()
        {
            GameController.instance.pig = this.gameObject;

            // get the third person character ( this should never be null due to require component )
            m_Character = GetComponent<ThirdPersonPig>();
        }
        private bool m_Jump;                      // the world-relative desired move direction, calculated from the camForward and user input.

        
        private void Start()
        {
            // get the transform of the main camera
            if (Camera.main != null)
            {
                m_Cam = Camera.main.transform;
            }
            else
            {
                Debug.LogWarning(
                    "Warning: no main camera found. Third person character needs a Camera tagged \"MainCamera\", for camera-relative controls.");
                // we use self-relative controls in this case, which probably isn't what the user wants, but hey, we warned them!
            }

            // get the third person character ( this should never be null due to require component )
            m_Character = GetComponent<ThirdPersonPig>();
        }