Почему игрок не движется вперед?

using UnityEngine;
using System.Collections;
public class Move : MonoBehaviour
{
    public GameObject player;
    public int speedRotation;
    public int speed;
    public int jumpSpeed;
 
    void Start()
    {
        player = (GameObject)this.gameObject;
        
    }
    void Update()
    {
        if (Input.GetKey(KeyCode.D) || Input.GetKey(KeyCode.RightArrow))
        {
            player.transform.position += player.transform.forward * speed * Time.deltaTime;
            
        }
        if (Input.GetKeyDown(KeyCode.Space))
        {
            player.transform.position += player.transform.up * jumpSpeed * Time.deltaTime;
        }
    }
}

using UnityEngine;
using System.Collections;
 
public class Char : MonoBehaviour {
    public float maxSpeed = 10f;
    public float jumpForce = 700f;
    bool facingRight = true;
    bool grounded = false;
    public Transform groundCheck;
    public float groundRadius = 0.2f;
    public LayerMask whatIsGround;
 
    public float move;
 
    // Use this for initialization
    void Start () {
 
    }
    
    // Update is called once per frame
    void FixedUpdate () {
 
 
        grounded = Physics2D.OverlapCircle (groundCheck.position, groundRadius, whatIsGround);
 
        move = Input.GetAxis ("Horizontal");
 
    }
 
    void Update()
    {
        if (grounded && (Input.GetKeyDown (KeyCode.W)||Input.GetKeyDown (KeyCode.UpArrow))) {
 
            GetComponent<Rigidbody2D>().AddForce (new Vector2(0f,jumpForce));
        }
        GetComponent<Rigidbody2D>().velocity = new Vector2 (move * maxSpeed, GetComponent<Rigidbody2D>().velocity.y);
        
        if (move > 0 && !facingRight)
            Flip ();
        else if (move < 0 && facingRight)
            Flip ();
 
 
 
        /*if (Input.GetKey(KeyCode.Escape))
        {
            Application.Quit();
        }
 
        if (Input.GetKey(KeyCode.R))
        {
            Application.LoadLevel(Application.loadedLevel);
        }*/
 
 
    }
    
    void Flip(){
        facingRight = !facingRight;
        Vector3 theScale = transform.localScale;
        theScale.x *= -1;
        transform.localScale = theScale;
    }       
}

private Rigidbody2D rb; // рб перса
public float horSpeed = 2f; // скорость бега
public float jumpSpeed = 3f; // скорость прыжка
private bool isJump = false;
private SpriteRenderer sp; // спрайт перса
private bool spd;
 
void Start() {
 sp = GetComponent<SpriteRenderer>();
 rb = GetComponent<Rigidbody2D>();
 spd = spr.FlipX;
}
 
void Update() {
 float x = Input.GetAxis("Horizontal");
 float y = Input.GetAxis("Vertical");
 float vy = rb.velocity.y;
 if (!isJump && y>0) {
  vy += jumpSpeed;
  isJump = true;
 }
 if (y == 0) isJump = false;
 float vx = horSpeed * Mathf.Abs(x);
 rb.velocity = new Vector2(vx, vy);
 if ( (Mathf.Sign(sp.FlipX == 1) != spd) {
  spd = !spd; 
  sp.FlipX = spd;
 }
}

using UnityEngine;
using System.Collections;
 
public class Char : MonoBehaviour
{
    public int speed = 5;
    public int dir = 0;
    void Start()
    {
 
    }
    void Update()
    {
        if (Input.GetKey(KeyCode.A))
        {
            dir = 0;
            Move();
        }
        else if (Input.GetKey(KeyCode.D))
        {
            dir = 1;
            Move();
        }
    }
    void Move()
    {
        if( dir != 0)
        {
            GetComponent<Rigidbody2D>().velocity = new Vector2(dir * speed, GetComponent<Rigidbody2D>().velocity.y);
        }
    }
 
 
}

if (vx != 0) spd = (Mathf.Sign(vx) == 1);
if ( (Mathf.Sign(sp.FlipX == 1) != spd) {
* sp.FlipX = spd;
*}

spd = spd.FlipX;

FlipX

void FixedUpdate () {
 grounded = Physics2D.OverlapCircle (groundCheck.position, groundRadius, whatIsGround);
}