ChangePlaylist.cs

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using UnityEngine;

namespace HKI.Core.Audio
{
    public class ChangePlaylist : MonoBehaviour
    {
        // Enums
        [System.Serializable]
        public enum AudioPlayerTypes
        {
            Music,
            Ambient,
            Voices,
            FX,
            UIFX
        }

        // Public variables
        [SerializeField] AudioSystem AudioSystem = null;

        [SerializeField] AudioPlayerTypes AudioPlayerType = AudioPlayerTypes.Music;

        [SerializeField] Playlist Playlist = null;

        [SerializeField] bool PlayOnStart = false;

        [SerializeField] float PlayInSeconds = 0.0f;

        // Start function
        void Start()
        {
            if (PlayOnStart)
                Play();
            else
                Invoke("Play", PlayInSeconds);
        }

        // Interface function
        public void Play()
        {
            if (AudioSystem != null)
            {
                switch (AudioPlayerType)
                {
                    case AudioPlayerTypes.Music: AudioSystem.MusicAudioPlayer.ChangePlaylist(Playlist, true); break;

                    case AudioPlayerTypes.Ambient: AudioSystem.AmbientAudioPlayer.ChangePlaylist(Playlist, true); break;

                    case AudioPlayerTypes.Voices: AudioSystem.VoicesAudioPlayer.ChangePlaylist(Playlist, true); break;

                    case AudioPlayerTypes.FX: AudioSystem.FxAudioPlayer.ChangePlaylist(Playlist, true); break;

                    case AudioPlayerTypes.UIFX: AudioSystem.UiFxAudioPlayer.ChangePlaylist(Playlist, true); break;
                }
            }
        }
    }
}