using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class SoundPlayer : MonoBehaviour
{
    public List<AudioClip> musics;
    public List<AudioClip> sfx;
    public AudioSource thisAS;
    public static SoundPlayer instance;

    // Start is called before the first frame update
    void Awake()
    {
        instance = this;
        thisAS = GetComponent<AudioSource>();
        thisAS.clip = musics[0];
        thisAS.volume = .5f;
        thisAS.Play();
    }

    public void PlaySong(int i)
    {
        StartCoroutine(ChangeMusic(i));
    }

    public void PlaySFX(int i)
    {
        thisAS.PlayOneShot(sfx[i], .7f);
    }

    public void ToggleMute()
    {
        thisAS.volume = thisAS.volume == 0 ? .5f : 0;
    }

    IEnumerator Fadein()
    {
        for (float i = 0; i < .5f; i += .05f)
        {
            thisAS.volume = i;
            yield return new WaitForSecondsRealtime(.1f);
        }
        thisAS.volume = .5f;
    }

    IEnumerator FadeOut()
    {
        for (float i = .5f; i > 0f; i -= .05f)
        {
            thisAS.volume = i;
            yield return new WaitForSecondsRealtime(.1f);
        }
        thisAS.volume = 0f;
    }

    IEnumerator ChangeMusic(int i)
    {
        yield return StartCoroutine(FadeOut());
        thisAS.clip = musics[i];
        thisAS.Play();
        yield return StartCoroutine(Fadein());
    }
}