Animations

using UnityEngine;
using System.Collections;

public class Movement : MonoBehaviour {

    public float speed = 5f;
    public float jumpForce = 8f;

    public Transform groundCheck;
    float groundedRadius = .2f;
    public LayerMask groundMask;

    Rigidbody2D _rigidbody2D;

    bool grounded;

    bool inLadder;
    float gravity;

    Animator anim;

    bool facingRight = true;

    public Transform graphics;

    void Start ()
    {
        anim = GetComponentInChildren<Animator> ();
        _rigidbody2D = rigidbody2D;
        gravity = _rigidbody2D.gravityScale;
    }

    void FixedUpdate()
    {
        anim.SetBool ("InLadder", inLadder);
        inLadder = false;
        grounded = Physics2D.OverlapCircle (groundCheck.position, groundedRadius, groundMask);
        anim.SetBool ("Grounded", grounded);
    }
    void Update ()
    {
        float x = Input.GetAxis ("Horizontal");
        anim.SetFloat ("Speed", Mathf.Abs (x));
        _rigidbody2D.velocity = new Vector2 (speed * x, rigidbody2D.velocity.y);

        if(inLadder)
        {
            _rigidbody2D.gravityScale = 0;
            float y = Input.GetAxisRaw ("Vertical");
            anim.SetFloat ("vSpeed", Mathf.Abs(y));
            _rigidbody2D.velocity = new Vector2 (rigidbody2D.velocity.x, speed * y);
        }
        else
        {
            _rigidbody2D.gravityScale = gravity;
            if(Input.GetButtonDown("Jump") && grounded)
            {
                _rigidbody2D.AddForce (new Vector2(0, jumpForce), ForceMode2D.Impulse);
            }
        }
        if(x > 0  && !facingRight)
        {
            Flip();
        }
        else if(x < 0  && facingRight)
        {
            Flip();
        }
    }
    void Flip()
    {
        facingRight = !facingRight;
        Vector3 ourScale = graphics.localScale;
        ourScale.x *= -1;
        graphics.localScale = ourScale;
    }
    void OnTriggerStay2D(Collider2D coll)
    {
        if(coll.collider2D.tag == "Ladder")
        {
            inLadder = true;
        }
    }
}