public void MoveFuncKeyboard(){

        rb2d.velocity = new Vector2(Input.GetAxis("Horizontal") * charSpeed, rb2d.velocity.y);
        anim.SetFloat("x_speed", rb2d.velocity.x);
        anim.SetBool("on_ground", isGrounded);
        if ((rb2d.velocity.x < 0) && (facingRight))
        {
            Flip();
        }

        if ((rb2d.velocity.x > 0) && (!facingRight))
        {
            Flip();
        }

        if ( Input.GetKeyDown(KeyCode.Space) ||  Input.GetKeyDown(KeyCode.W) || Input.GetKeyDown(KeyCode.UpArrow))
        {
            Jump(true);
        }
    }
    public void Jump(bool isJump) {
        if(currJetPower >= 1 && isJump)
        {
            rb2d.AddForce(Vector2.up * jumpForce, ForceMode2D.Impulse);
            currJetPower--;
        } else if(currJetPower <= 0)
        {
            Debug.Log("No more fuel for jetpack");
        }
    }