Player.cs

using UnityEngine;
using System.Collections;

public class Player : MonoBehaviour {

    //Declaration
    public GameObject player;

    public float xPos;

    public float zPos;
    public Vector3 playerPos;
    public float distance;

    public Ray ray;
    public RaycastHit hit;
    public Vector3 travel;

	// Update is called once per frame
	void Update ()
    {
        xPos = Input.mousePosition.x;
        zPos = Input.mousePosition.z;

        ray = Camera.main.ScreenPointToRay(Input.mousePosition);

        if (Input.GetMouseButtonDown(1))
        {
            if (Physics.Raycast(ray, out hit))
            {
                travel = new Vector3(hit.point.x, .5f, hit.point.z);
                xPos = hit.point.x;
                zPos = hit.point.z;
            }
            playerPos = new Vector3(xPos, 0.5f, zPos);
            iTween.MoveTo(gameObject, playerPos, distance);
            distance = Vector3.Distance(travel, transform.position);

        }
        playerPos = new Vector3(xPos, 0.5f, zPos);

        //   player.transform.position = playerPos;
	}
}