using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class SoundManager : MonoBehaviour

{

    // Audio players components.

    public AudioSource EffectsSource;

    public AudioSource MusicSource;

    // Random pitch adjustment range.

    public float LowPitchRange = .95f;

    public float HighPitchRange = 1.05f;

    // Singleton instance.

    public static SoundManager Instance = null;

    // Initialize the singleton instance.

    private void Awake()

    {

        // If there is not already an instance of SoundManager, set it to this.

        if (Instance == null)

        {

            Instance = this;

        }

        //If an instance already exists, destroy whatever this object is to enforce the singleton.

        else if (Instance != this)

        {

            Destroy(gameObject);

        }

        //Set SoundManager to DontDestroyOnLoad so that it won't be destroyed when reloading our scene.

        DontDestroyOnLoad (gameObject);

    }

    // Play a single clip through the sound effects source.

    public void Play(AudioClip clip)

    {

        EffectsSource.clip = clip;

        EffectsSource.Play();

    }

    // Play a single clip through the music source.

    public void PlayMusic(AudioClip clip)

    {

        MusicSource.clip = clip;

        MusicSource.Play();

    }

    // Play a random clip from an array, and randomize the pitch slightly.

    public void RandomSoundEffect(params AudioClip[] clips)

    {

        int randomIndex = Random.Range(0, clips.Length);

        float randomPitch = Random.Range(LowPitchRange, HighPitchRange);

        EffectsSource.pitch = randomPitch;

        EffectsSource.clip = clips[randomIndex];

        EffectsSource.Play();

    }

}