2D Unity movement sağ tuş çalışmıyor

using UnityEngine;
using System.Collections;
public class CharacterController : MonoBehaviour
{
    public int speed;
    public int jumpSpeed;
    public int damage;

    float  moveInput;

    Animator animator;
    Rigidbody2D rb;

    bool canJump = true;
    bool faceRight = true;
    bool canAttack = true;

    Vector2 forward;

    public Vector3 offset;

    RaycastHit2D hit;

    private void Start()
    {
        animator = GetComponent<Animator>();
        rb = GetComponent<Rigidbody2D>();
    }

    private void FixedUpdate()
    {
        //moveInput = Input.GetAxis("Horizontal");

        rb.velocity = new Vector2(moveInput * speed, rb.velocity.y);

        if(moveInput > 0 || moveInput < 0)
        {
            animator.SetBool("isRunning", true);
        }
        else
        {
            animator.SetBool("isRunning", false);
        }

        if (faceRight == true && moveInput < 0)
        {

            Flip();
        }else if(faceRight == false && moveInput > 0)
        {
            Flip();
        }

        if (Input.GetKeyDown(KeyCode.Space))
        {
            Jump();
        }

        if (Input.GetKeyDown(KeyCode.F) && canAttack)
        {
            Attack();
        }
    }

    private void OnCollisionEnter2D(Collision2D collision)
    {
        if(collision.transform.tag == "Platform")
        {
            canJump = true;
        }
    }

    public void MoveRight()
    {
        moveInput = 1;
    }

    public void MoveLeft()
    {
       moveInput = -1;
    }

    public void StopMovement()
    {
        moveInput = 0;
    }

    public void Jump()
    {
        if (canJump)
        {
            rb.AddForce(Vector2.up * jumpSpeed);
            canJump = false;
        }
    }

    private void Flip()
    {
        faceRight = !faceRight;
        Vector3 scaler = transform.localScale;
        scaler.x *= -1;
        transform.localScale = scaler;
    }

    private void Attack()
    {
        canAttack = false;

        if (!faceRight)
        {
            forward = transform.TransformDirection(Vector2.right * -2);
        }
        else
        {
            forward = transform.TransformDirection(Vector2.right * 2);
        }

        RaycastHit2D hit = Physics2D.Raycast(transform.position + offset, forward, 1.0f);

        animator.SetTrigger("attack");

        StartCoroutine(AttackDelay());
    }

IEnumerator AttackDelay()
{
    yield return new WaitForSeconds(0.5f);
    canAttack = true;
}
   
}