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

public class Skill_BlackHole : ProjectileBase
{
    [Header("블랙홀 생성 시간")]
    public float lifetime = 3f;
    [Header("블랙홀 범위")]
    public float range = 5f;
    [Header("블랙홀 데미지 간격")]
    public float damagegap = 0.2f;

    float m_DagmaeGap;

    public override void Set(ProjectileData _data)
    {
        _data.eStartPos = eProjectileStartPos.Custom;
        _data.v3_StartPos = _data.target.Get_Center_position();
        base.Set(_data);

        m_LifeTime = lifetime;
        m_DagmaeGap = damagegap;

        var skillid = m_ProjecTileData.m_SkillListTableData.n_SkillID;
        if (IsStep(1))
        {
            range += Get_AwakenData(1, 1);
            m_LifeTime += Get_AwakenData(1, 2);
        }
        var StunTime = IsStep(2) ? Get_AwakenData(2, 1) : 0f;
        if (IsStep(3))
        {
            range += Get_AwakenData(3, 1);
            m_DagmaeGap -= Get_AwakenData(3, 2);
        }

        StartCoroutine(Co_BlackHole(StunTime));
    }

    IEnumerator Co_BlackHole(float StunTime)
    {
        while (m_LifeTime > 0f)
        {
            Attack_Enemies(Get_Enemies(transform, range), 0f);
            yield return new WaitForSeconds(m_DagmaeGap);
            m_LifeTime -= m_DagmaeGap;
        }
        yield return new WaitForSeconds(0.5f);
        Attack_Enemies(Get_Enemies(transform, range), StunTime);

        Off();
    }

    void Attack_Enemies(List<Actor> enemies, float StunTime)
    {
        for (int j = 0; j < enemies.Count; j++)
        {
            if (DSUtil.CheckNull(enemies[j])) continue;
            if (j >= enemies.Count) break;

            enemies[j].Attract(transform.position);
            if (StunTime > 0f) enemies[j].Stun(StunTime, true);
            enemies[j].Get_Damage(Get_DamageInfo());
            Show_HitEffect(true, enemies[j]);
        }
    }
}