GlobalGameJame/Assets/Scripts/DayManager.cs

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

public class DayManager : MonoBehaviour
{
    public int sunSpeed = 30;
    private bool night = false;

    public AudioSource mainSource = new AudioSource();
    public AudioClip dayClip;
    public AudioClip nigtClip;

    public int daySurvived = 0;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        float sunRotationX = transform.localEulerAngles.x;
        sunRotationX = (sunRotationX > 180) ? sunRotationX - 360 : sunRotationX;
        if (sunRotationX < 0 && !night)
        {
            mainSource.PlayOneShot(nigtClip);
            night = true;
        }
        else if (sunRotationX > 0 && night)
        {
            mainSource.PlayOneShot(dayClip);
            night = false;
            daySurvived++;
        }

        this.gameObject.transform.Rotate(new Vector3(sunSpeed * Time.deltaTime, 0, 0));
    }

}