using System;
using System.Collections.Generic;
using UnityEngine;
using Random = UnityEngine.Random;

public class EnemySpawner : MonoBehaviour
{
    #region Statication

    public static EnemySpawner instance;

    private void Awake()
    {
        if (instance != null && instance != this)
        {
            Destroy(gameObject);
            return;
        }
        instance = this;
    }

    #endregion

    [SerializeField] private Transform enemyFolder;
    [SerializeField] private Enemy[] spawnableEnemies;
    public List<Transform> spawnLocationPos;
    public List<TileObject> spawnLocations;
    public void SpawnEnemy(int amount)//Enemy requestedEnemy)
    {
        while (amount > 0)
        {
            Enemy newEnemy = Instantiate(spawnableEnemies[Random.Range(0, spawnableEnemies.Length)], enemyFolder);
            TileObject spawnLocation = GridManager.instance.FindClosestEmptyTile(spawnLocations[Random.Range(0, spawnLocations.Count)]);
            newEnemy.transform.position = spawnLocation.transform.position;
            newEnemy.currentTile = spawnLocation;
            newEnemy.currentTile.hasUnit = newEnemy;
            TurnHandler.instance.enemyEntities.Add(newEnemy);
            amount--;
        }
    }
    
}