Character stuck moving on spot.

Making a 3rd person game and working on the movement and animations. But for some reason my character will only move on the spot.

It will run, strafe and jump as per the animations and controls but will only do so on the spot. I've tried using rigidbody and various little things but to no avail. Any suggestions?

I'm also using a flat terrain and no obstacles for testing area.

 using UnityEngine;
 using System.Collections;

 [RequireComponent(typeof(Animator))]
 [RequireComponent(typeof(CharacterController))]

 public class CharacterMovement : MonoBehaviour
 {

 //public Texture2D cursorTexture;
 //private Vector2 hotSpot = Vector2.zero;
 //Rigidbody rigidbody;

 Animator animator;
 CharacterController characterController;

 [System.Serializable]
 public class AnimationSettings
 {
     public string verticalVelocityFloat = "Forward";
     public string horizontalVelocityFloat = "Strafe";
     public string groundedBool = "isGrounded";
     public string jumpBool = "isJumping";
 }
 [SerializeField]
 public AnimationSettings animations;

 [System.Serializable]
 public class PhysicsSettings
 {
     public float gravityModifier = 9.81f;
     public float baseGravity = 50.0f;
     public float resetGravityValue = 1.2f;
 }
 [SerializeField]
 public PhysicsSettings physics;

 [System.Serializable]
 public class MovementSettings
 {
     public float jumpSpeed = 6;
     public float jumpTime = 0.25f;
 }
 [SerializeField]
 public MovementSettings movement;

 bool jumping;
 bool resetGravity;
 float gravity;

 // Use this for initialization
 void Start()
 {

     animator = GetComponent<Animator>();
     characterController = GetComponent<CharacterController>();
     SetupAnimator();

 }

 void Update()
 {

     ApplyGravity();
     Animate(Input.GetAxis("Vertical"), Input.GetAxis("Horizontal"));

     if (Input.GetButtonDown("Jump"))
     {
         Jump();
     }
     
 }

 //Animates the character and applies movement
 public void Animate(float forward, float strafe)
 {
     animator.SetFloat(animations.verticalVelocityFloat, forward);
     animator.SetFloat(animations.horizontalVelocityFloat, strafe);
     animator.SetBool(animations.groundedBool, characterController.isGrounded);
     animator.SetBool(animations.jumpBool, jumping);
 }

 public void Jump()
 {
     if (jumping)
     {
         return;
     }

     if (characterController.isGrounded)
     {
         jumping = true;
         StartCoroutine(StopJump());
     }
 }

 IEnumerator StopJump()
 {
     yield return new WaitForSeconds(movement.jumpTime);
     jumping = false;
 }

 //apply gravity
 void ApplyGravity()
 {
     if (!characterController.isGrounded)
     {
         if (!resetGravity)
         {
             gravity = physics.resetGravityValue;
             resetGravity = true;
         }
         gravity += Time.deltaTime * physics.gravityModifier;
     }
     else
     {
         gravity = physics.baseGravity;
         resetGravity = false;
     }

     Vector3 gravityVector = new Vector3();

     if (!jumping)
     {
         gravityVector.y -= gravity;
     }
     else
     {
         gravityVector.y = movement.jumpSpeed;
     }

     characterController.Move(gravityVector * Time.deltaTime);
 }

 //Sets up avater
 void SetupAnimator()
 {
     Animator[] animators = GetComponentsInChildren<Animator>();

     if (animators.Length > 0)
     {
         for (int i = 0; i < animators.Length; i++)
         {
             Animator anim = animators[i];
             Avatar av = anim.avatar;

             if (anim != animator)
             {
                 animator.avatar = av;
                 Destroy(anim);
             }
         }
     }
 }

 

}