GlobalGameJame/Assets/Scripts/SpawnManager.cs

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

public class SpawnManager : MonoBehaviour
{

    public List<GameObject> enemyList = new List<GameObject>();
    public List<Transform> spawnPoints = new List<Transform>();
    public int enemyNumber = 10;
    public GameObject Sun = new GameObject();

    bool night = false;
    bool alreadySpawn = false;

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

    // Update is called once per frame
    void Update()
    {
        float sunRotationX = Sun.transform.localEulerAngles.x;
        sunRotationX = (sunRotationX > 180) ? sunRotationX - 360 : sunRotationX;

        Debug.Log(sunRotationX.ToString());
        if (sunRotationX < 0)
        {
            Debug.Log("It is a Night");
            night = true;
        } else {
            Debug.Log("It is a Day");
            night = false;
        }
        

        if (!night)
        {
            alreadySpawn = false;
        }

        if (!alreadySpawn && night)
        {
            for (int i = 0; i < enemyNumber; i++)
            {
                int randomSpawnPoint = Random.Range(0, (spawnPoints.Count - 1));
                int random = Random.Range(0, (enemyList.Count - 1));
                GameObject randomSpawnPointGO = spawnPoints[randomSpawnPoint].gameObject;

                Instantiate(enemyList[random], new Vector3(randomSpawnPointGO.transform.position.x, randomSpawnPointGO.transform.position.y, randomSpawnPointGO.transform.position.z), Quaternion.identity);
                alreadySpawn = true;
            }
        }
    }

    public static float Clamp0360(float eulerAngles)
    {
        float result = eulerAngles - Mathf.CeilToInt(eulerAngles / 360f) * 360f;
        if (result < 0)
        {
            result += 360f;
        }
        return result;
    }
}