public class SFXManager : MonoBehaviour {

    //ui sfx
    [SerializeField]
    private AudioSource uiSFX;

    //ui clips
    [SerializeField]
    private AudioClip sliderClick;
    [SerializeField]
    private AudioClip weaponRecharged;

    [SerializeField]
    private SFX buttonClicks;
    [SerializeField]
    private SFX slideOpen;
    [SerializeField]
    private SFX slideClose;

    private void OnEnable()
    {
        SliderButton_UI.playClick += PlayerSliderClick;
        WeaponPanel_UI.weaponCharged += WeaponCharged;
        ButtonClick.playButtonSFX += PlayUIButtonClick;
        SlideOutFromRight.slideOpen += PlaySlideOpen;
        SlideOutFromRight.slideClose += PlaySlideClosed;
    }

    private void OnDisable()
    {
        SliderButton_UI.playClick -= PlayerSliderClick;
        WeaponPanel_UI.weaponCharged -= WeaponCharged;
        ButtonClick.playButtonSFX -= PlayUIButtonClick;
        SlideOutFromRight.slideOpen -= PlaySlideOpen;
        SlideOutFromRight.slideClose -= PlaySlideClosed;
    }

    private void PlayerSliderClick()
    {
        if(sliderClick != null)
        {
            uiSFX.volume = .5f + Random.Range(-0.05f,0.05f);
            uiSFX.pitch = .9f + Random.Range(-0.05f, 0.05f);
            uiSFX.clip = sliderClick;
            uiSFX.Play();
        }
    }

    private void WeaponCharged(WeaponPanel_UI weapon)
    {
        //make fancier to select different sounds based on weapon?
        PlayWeaponRecharge();
    }

    private void PlayWeaponRecharge()
    {
        if (weaponRecharged != null)
        {
            uiSFX.volume = .9f + Random.Range(-0.05f, 0.05f);
            uiSFX.pitch = .9f + Random.Range(-0.05f, 0.05f);
            uiSFX.clip = weaponRecharged;
            uiSFX.Play();
        }
    }

    private void PlayUIButtonClick()
    {
        buttonClicks.PlaySFX(uiSFX, false);
    }

    private void PlaySlideOpen()
    {
        slideOpen.PlaySFX(uiSFX, false);
    }

    private void PlaySlideClosed()
    {
        slideClose.PlaySFX(uiSFX, false);
    }
}

[System.Serializable]
public class SFX
{
    public List<AudioClip> clips;
    [Range(0f,1f)]
    public float volume = 1f;
    [Range(0f, 0.2f)]
    public float volumeVariation = 0.05f;
    [Range(0f, 2f)]
    public float pitch = 1f;
    [Range(0f, 0.2f)]
    public float pitchVariation = 0.05f;

    public void PlaySFX(AudioSource source, bool waitToFinish = true)
    {
        if (!source.isPlaying || !waitToFinish)
        {
            source.clip = GetRandomClip(this);
            source.volume = this.volume + Random.Range(-volumeVariation, volumeVariation);
            source.pitch = this.pitch + Random.Range(-pitchVariation, pitchVariation);
            source.Play();
        }
    }

    private AudioClip GetRandomClip(SFX sfx)
    {
        if (sfx.clips.Count > 0)
            return sfx.clips[Random.Range(0, sfx.clips.Count - 1)];
        else
            return null;
    }

}