Fairy Hollow

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
/* Created by Emily Cochrane 
 * Date: Sep 2017
 */
    public class SoundManager : MonoBehaviour
{
    public AudioSource sfxSource;                   //Drag a reference to the audio source which will play the sound effects.
    public AudioSource ambientSource;                 //Drag a reference to the audio source which will play the music.
    public static SoundManager instance = null;     //Allows other scripts to call functions from SoundManager.             
    public float lowPitchRange = .95f;              //The lowest a sound effect will be randomly pitched.
    public float highPitchRange = 1.05f;            //The highest a sound effect will be randomly pitched.
    public float randomPitch = 1.0f;                //current pitch
    public bool soundToggle = true;                 //For Mute button
    public bool musicToggle = true;                 //For mute button
    public AudioClip[] soundTracks;
    public int nextTrack = 0;


    void Awake()
    {
        //Check if there is already an instance of SoundManager
        if (instance == null)
            //if not, set it to this.
            instance = this;
        //If instance already exists:
        else if (instance != this)
            //Destroy this, this enforces our singleton pattern so there can only be one instance of SoundManager.
            Destroy(gameObject);
        //set music to loop
        if (ambientSource != null)
        {
            ambientSource.loop = true;
            ambientSource.volume = 0.5f;
        }
        if (soundTracks != null)
        {
            PlaySingleLoopAmbient(SetRandAudioClip(soundTracks));
        }
        //Set SoundManager to DontDestroyOnLoad so that it won't be destroyed when reloading our scene.
        DontDestroyOnLoad(gameObject);
    }
       
    public void PlayRandomTrack()
    {
        PlaySingleLoopAmbient(SetRandAudioClip(soundTracks));
    }
    public void NextTrackNum(int num)
    {
        nextTrack = num;
    }
    public void SetSFXAudioSource(AudioSource source)
    {
        sfxSource = source;
    }
    public void SetSoundTrackAudioSource(AudioSource source)
    {
        ambientSource = source;
    }
    //Used to play single sound clips for Soundtrack or Background sound.
    public void PlaySingleAmbient(AudioClip clip)
    {
        //reset pitch after sound has played
        ambientSource.pitch = 1;
        //Set the clip of our efxSource audio source to the clip passed in as a parameter.
        ambientSource.clip = clip;
        ambientSource.loop = false;

        //Play the clip.
        ambientSource.Play();
        //for playing multiple sounds at once
        //efxSource.PlayOneShot(clip);
    }
    //Used to play single sound clips on Loop for Soundtrack or Background sound.
    public void PlaySingleLoopAmbient(AudioClip clip)
    {
        //reset pitch after sound has played
        ambientSource.pitch = 1;
        //Set the clip of our efxSource audio source to the clip passed in as a parameter.
        ambientSource.clip = clip;
        ambientSource.loop = true;

        //Play the clip.
        ambientSource.Play();
        //for playing multiple sounds at once
        //efxSource.PlayOneShot(clip);
    }
    //Used to play single sound clips.
    public void PlaySingleSFX(AudioClip clip)
    {
        //reset pitch after sound has played
        sfxSource.pitch = 1;
        //Set the clip of our efxSource audio source to the clip passed in as a parameter.
        sfxSource.clip = clip;

        //Play the clip.
        sfxSource.Play();
        //for playing multiple sounds at once
        //efxSource.PlayOneShot(clip);
    }

    //RandomizeSfx chooses randomly between various audio clips and slightly changes their pitch.
    public void RandomizeSFX(params AudioClip[] clips)
    {
        //reset pitch
        sfxSource.pitch = 1;
        //Generate a random number between 0 and the length of our array of clips passed in.
        int randomIndex = Random.Range(0, clips.Length);

        //Choose a random pitch to play back our clip at between our high and low pitch ranges.
        //ChoosePitch();

        //Set the pitch of the audio source to the randomly chosen pitch.
        //efxSource.pitch = randomPitch;

        //Set the clip to the clip at our randomly chosen index.
        sfxSource.clip = clips[randomIndex];

        //Play the clip.
        sfxSource.Play();
        //efxSource.PlayOneShot(clips[randomIndex]);
    }
    // for the SFX mute button to toggle between mute and unmute
    
    // randomly chooses an audio clip and returns that clip
    public AudioClip SetRandAudioClip(AudioClip[] sound){   
        int randomIndex = Random.Range(0, sound.Length);    
        AudioClip clip = sound[randomIndex];
        //Choose a random pitch to play back our clip at between our high and low pitch ranges.
        //ChoosePitch();
        //Set the pitch of the audio source to the randomly chosen pitch.
        //sfxSource.pitch = randomPitch;
        return clip;
    }
    //plays a single SFX clip and sets a random pitch
    public void PlaySingleSFXRndPitch(AudioClip Aclip){

        //Set the pitch of the audio source to the randomly chosen pitch.
        ChoosePitch();
        sfxSource.pitch = randomPitch;

        //Set the clip to the clip at our randomly chosen index.
        sfxSource.clip = Aclip;

        //Play the clip.
        sfxSource.Play();
        //set the Aclip to play with other sounds at the same time
        //sfxSource.PlayOneShot(Aclip);

        //reset pitch after sound has played
        //sfxSource.pitch = 1;
    }
    //set the pitch value - this is used in PauseGame script to set a single value pitch once(if this was called in the PlaySignleRndPitch() funtion it would change the pitch every time)
    public void ChoosePitch(){
        //Choose a random pitch to play back our clip at between our high and low pitch ranges.
        randomPitch = Random.Range(lowPitchRange, highPitchRange);
    }

    // for the SFX mute button to toggle between mute and unmute
    public void ToggleMuteSFX()
    {
        soundToggle = !soundToggle;
        if (soundToggle)
        {
            sfxSource.volume = 1.0f;
            //PlaySingleSFX(mute);
            //soundBtn.GetComponent<Image>().sprite = soundOnImg;
        }
        else
        {
            //PlaySingleSFX(mute);
            sfxSource.volume = 0.0f;
            //soundBtn.GetComponent<Image>().sprite = soundOffImg;
        }
    }
    // for the Music mute button to toggle between mute and unmute
    public void ToggleMuteMusic()
    {
        musicToggle = !musicToggle;
        if (musicToggle)
        {
            ambientSource.volume = 0.5f;
            //PlaySingleSFX(mute);
            //musicBtn.GetComponent<Image>().sprite = musicOnImg;
        }
        else
        {
            //PlaySingleSFX(mute);
            ambientSource.volume = 0.0f;
            //musicBtn.GetComponent<Image>().sprite = musicOffImg;
        }
    }
}