/// <summary>
 /// Removes the sound emitter.
 /// </summary>
 /// <param name="em">The em.</param>
 public virtual void RemoveSoundEmitter(ISoundEmitter2D em)
 {
     if (em == null)
     {
         ActiveLogger.LogMessage("Emitter is Null " + em.ToString(), LogLevel.RecoverableError);
         return;
     }
     em.Stop();
     bool resp = SoundEmiters2D.Remove(em);
     if (!resp)
     {
         ActiveLogger.LogMessage("Emitter not found: " + em.ToString(), LogLevel.Warning);
     }
 }
        /// <summary>
        /// Adds the sound emitter.
        /// </summary>
        /// <param name="em">The em.</param>
        /// <param name="play">if set to <c>true</c> [play].</param>
        public virtual void AddSoundEmitter(ISoundEmitter2D em, bool play = false)
        {
            if (em == null)
            {
                ActiveLogger.LogMessage("Emitter is Null " + em.ToString(), LogLevel.RecoverableError);
                return;
            }

            SoundEmiters2D.Add(em);
            em.Apply3D();
            if (play)
                em.Play();
        }