Gab

private Animator p_anim;
    private Rigidbody2D p_rb;

    private SpriteRenderer SpriteFlip;
    bool p_walk ;

    public float jump;
    public float speed;
    bool grounded = false;



    void Start(){

        SpriteFlip = GetComponent<SpriteRenderer>();
        p_anim = GetComponent<Animator>();
        p_rb = GetComponent<Rigidbody2D>();
        p_walk = false;
    }

    void Update () {

        transform.rotation = Quaternion.identity;

        if (Input.GetKey(KeyCode.D)) {

            SpriteFlip.flipX = false;
            transform.Translate(new Vector2(0.8f,0));
            p_rb.AddForce(new Vector2(speed,0));
            p_walk = true;
            }

        if (Input.GetKey(KeyCode.Q)) {

            SpriteFlip.flipX = true;
            transform.Translate(new Vector2(-0.8f,0));
            p_rb.AddForce(new Vector2(speed,0));
            p_walk = true;
            }

        if (Input.GetKeyUp(KeyCode.D) || Input.GetKeyUp(KeyCode.Q)) {
            p_walk = false; }

        if (p_walk == true) {
            p_anim.SetBool ("walk", true); }


        if (p_walk == false) {
            p_anim.SetBool ("walk", false); }

        if (Input.GetKeyDown (KeyCode.Space) && grounded == true) {
            GetComponent<Rigidbody2D> ().velocity = new Vector2 (
                GetComponent<Rigidbody2D>().velocity.x , jump);
        }
    }

    void OnTriggerEnter2D() {
        grounded = true;
    }

    void OnTriggerExit2D() {
        grounded = false;
    }

}