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

public class AmbientSoundGenerator : MonoBehaviour {
    public GameObject AmbientSfxPrefab;
    public float MinDistance;
    public float MaxDistance;
    public AudioClip[] Clips;

    [Header("Cooldown configuration")]
    public float MinCooldown;
    public float MaxCooldown;
    public int TooManySoundsCount;
    [Tooltip("")]
    public float TrackingDuration;

    [Header("Runtime values")]
    public float AmbientNoiseCooldown = 0f;

    private Transform World;
    private List<float> SoundTimes = new List<float>();

    private void Awake() {
        World = GameObject.FindGameObjectWithTag("World").transform;
    }

    private void Update() {
        AmbientNoiseCooldown -= Time.deltaTime;
        if (AmbientNoiseCooldown <= 0) {
            AmbientNoiseCooldown += Random.Range(MinCooldown, MaxCooldown) + TrackingDuration * Mathf.Pow(SoundTimes.Count / TooManySoundsCount, 2);

            int RemoveUntil = -1;
            for (int I = 0; I < SoundTimes.Count; I++) {
                if (Time.time - SoundTimes[I] > TrackingDuration) {
                    RemoveUntil = I;
                } else {
                    break;
                }
            }
            SoundTimes.RemoveRange(0, RemoveUntil + 1);
            SoundTimes.Add(Time.time);

            float Distance = Random.Range(MinDistance, MaxDistance);
            float Rads = Random.Range(0, 2 * Mathf.PI);
            Vector3 Offset = new Vector3(Mathf.Cos(Rads) * Distance, Random.Range(0f, 5f), Mathf.Sin(Rads) * Distance);
            GameObject Obj = Instantiate(AmbientSfxPrefab, transform.position + Offset, new Quaternion(), World);
            AudioSource Sfx = Obj.GetComponent<AudioSource>();
            if (Sfx != null) {
                Sfx.clip = Clips[Random.Range(0, Clips.Length)];
                Sfx.volume = Mathf.Sqrt(Random.Range(0.3f, 1f));
                Sfx.Play();
            }
        }
    }
}