Generic/Assets/Scripts/AudioManager.cs

using UnityEngine;

public class AudioManager : MonoBehaviour
{
    public static AudioManager instance;
    void Awake()
    {
        if (instance == null)
        {
            instance = this;
            DontDestroyOnLoad(gameObject); // Ensure this persists across scenes
        }
        else if (instance != this)
        {
            Destroy(gameObject); // Ensure only one instance exists
        }
    }

    public AudioSource mainMenuMusic, victoryMusic, defeatMusic, battleSelectMusic;
    public AudioSource[] backgroundMusic;
    public AudioSource[] sfx;
    private int currentBackgroundIndex;
    private bool isBackgroundMusicPlaying;
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        if (isBackgroundMusicPlaying)
        {
            if (!backgroundMusic[currentBackgroundIndex].isPlaying)
            {
                currentBackgroundIndex++;
                if (currentBackgroundIndex >= backgroundMusic.Length)
                {
                    currentBackgroundIndex = 0; // Loop back to the first track
                }
                backgroundMusic[currentBackgroundIndex].Play();
            }
        }
    }

    public void StopMusic()
    {
        mainMenuMusic.Stop();
        victoryMusic.Stop();
        defeatMusic.Stop();
        foreach (AudioSource track in backgroundMusic)
        {
            track.Stop();
        }
        isBackgroundMusicPlaying = false;
    }

    public void PlayMainMenuMusic()
    {
        StopMusic();
        mainMenuMusic.Play();
    }

    public void PlayVictoryMusic()
    {
        StopMusic();
        victoryMusic.Play();
    }

    public void PlayDefeatMusic()
    {
        StopMusic();
        defeatMusic.Play();
    }
    public void PlayBattleSelectMusic()
    {
        StopMusic();
        battleSelectMusic.Play();
    }
    public void PlayBackgroundMusic(int index)
    {
        StopMusic();
        currentBackgroundIndex = Random.Range(0, backgroundMusic.Length);
        backgroundMusic[currentBackgroundIndex].Play();
        isBackgroundMusicPlaying = true;
    }
    
    public void PlaySFX(int sfxToPlay)
    {
        if (sfxToPlay >= 0 && sfxToPlay < sfx.Length)
        {
            // Stop all SFX before playing a new one
            sfx[sfxToPlay].Stop();
            // Play the selected SFX
            sfx[sfxToPlay].Play();
        }
    }
}