void Start()
{

    anim = GetComponent<Animator>();

}

void Update()
{
  //CHARACTER JUMP

      if (Input.GetKeyDown(KeyCode.Space))

         transform.Translate(Vector3.up * jumpSpeed * Time.deltaTime, Space.World);
     }

    void FixedUpdate()
{
    //Character rotation with A and D
    var z = Input.GetAxis("Horizontal") * rotSpeed;

    //Character movement with W and S
    var y = Input.GetAxis("Vertical") * speed;

    //Sprint
    if (Input.GetKey(KeyCode.RightShift))
        y = y * sprintSpeed;

    transform.Translate(0, -y, 0);
    transform.Rotate(0, 0, -z);

    //Character animations
    anim.SetBool("IsSprint", Input.GetKey(KeyCode.RightShift) && Input.GetKey(KeyCode.W));
    anim.SetBool("IsIdle", y < speed && y < sprintSpeed);
    anim.SetBool("IsRunning", Input.GetKey(KeyCode.W) && y > 0 && y < 0.0851);


}