private Vector3 mydir;

void Update()

{

    inputH=Input.GetAxis("Horizontal");

   inputV=Input.GetAxis("Vertical");

 mydir=new Vector3(inputH,0,inputV)

}

private void FixedUpdate(){

          if(inputV!=0){

   rigid.MovePosition(transform.position+transform.forward*moveSpeed*Time.deltaTime*inputH)

   }else{

    if(inputH!=0){

   rigid.MovePosition(transform.position+transform.right*moveSpeed*Time.deltaTime)

}

    }

}