/// <summary>
/// Update bounce count
/// </summary>
/// <param name="coll">collision info</param>
void OnCollisionEnter2D(Collision2D coll) {
hud.AddBounce();
}
/// <summary>
/// Update bounce count
/// </summary>
/// <param name="coll">collision info</param>
void OnCollisionEnter2D(Collision2D coll)
{
hud.AddBounce();
audioSource.Play();
}