Movemente_Bear

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class UrsoMov : MonoBehaviour {
    float moveX, moveY;
    public float speed;
    public GameObject atkU;
    public GameObject gunnerU;
    private int hp = 0;
    public float forca;
    bool estouNoChao;
    GameObject UltimaBala;
    private float speedBullet = 10;
    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {

        if (Input.GetKeyDown (KeyCode.UpArrow)) {
            if (estouNoChao == true) {
                GetComponent<Rigidbody2D> ().AddForce (new Vector2 (0f, forca), ForceMode2D.Impulse);
                GetComponent<Animator> ().SetBool ("noPulando", true);
                transform.GetChild(1).gameObject.layer = 11;
                this.gameObject.layer = 11;
            }

        }
        if (GetComponent<Rigidbody2D> ().velocity.y < 0) {
            transform.GetChild(1).gameObject.layer = 10;
            this.gameObject.layer = 10;
        }
        if (Input.GetKey (KeyCode.DownArrow)) {
            if (estouNoChao == true) {
                GetComponent<Animator> ().SetBool ("noAgachando", true);
            }
        }
            if (Input.GetKeyUp (KeyCode.DownArrow)) {
                GetComponent<Animator> ().SetBool ("noLevantando", false);
                GetComponent<Animator> ().SetBool ("noAgachando", false);
            }



        moveX = Input.GetAxis ("Horizontal");
        if (moveX != 0) {
            GetComponent<Animator> ().SetBool ("noAndando", true);
            if (moveX < 0) {
                GetComponent<SpriteRenderer> ().flipX = true;
                transform.GetChild (0).transform.localPosition = new Vector2(-2.41f,0.48f);

            } else {
                GetComponent<SpriteRenderer> ().flipX = false;
                transform.GetChild (0).transform.localPosition = new Vector2(2.41f,0.48f);
            }

        }
        //moveY = Input.GetAxis ("Vertical");
        transform.Translate (moveX * Time.deltaTime * speed, moveY * Time.deltaTime * speed, 0f);
        if (Input.GetKeyDown (KeyCode.Space)) {
            UltimaBala = Instantiate (atkU, gunnerU.transform.position, Quaternion.identity);

            if (GetComponent<SpriteRenderer> ().flipX == true) {
                UltimaBala.GetComponent<BulletU> ().velocidade *= -1;
            }

        }
    }
    void OnCollisionEnter2D (Collision2D collision){
        if (collision.gameObject.CompareTag ("Bee")) {
            hp++;
        }
        if (hp >= 3) {
            Destroy (this.gameObject);
        }
        if (collision.gameObject.CompareTag("chao"))
        {
                estouNoChao = true;
        }
}
    void OnCollisionExit2D (Collision2D collision){
        if (collision.gameObject.CompareTag ("chao")) {
            estouNoChao = false;
        }
    }
}