using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using DG.Tweening;
using Sirenix.OdinInspector;

/// <summary>
/// 控制Boss血条UI
/// </summary>
public class BossHPBar : MonoBehaviour
{
    private float HPLeft = -1f;
    public Enemy boss;
    private Image empty;
    private Text bossName;
    private Image self;

    void Start(){
        self = GetComponent<Image>();
        empty = transform.Find("血条（底").GetComponent<Image>();
        bossName = transform.Find("Boos名").GetComponent<Text>();
        if(boss.gameObject.name == "地藏") bossName.text = "地藏王菩萨";
        if(boss.gameObject.name == "木马") bossName.text = "特洛伊木马";
        if(boss.gameObject.name == "以撒雕像") bossName.text = "以撒";
    }

    void Update(){
        //
        //Debug.Log(boss.HPLeft + ", " + boss.HP);
        //
        //每帧检查，当UI剩余血量和玩家真实剩余血量不一致，触发重刷新UI功能
        if(HPLeft != boss.HPLeft) RefrashUI(boss.HPLeft/boss.HP);
        HPLeft = boss.HPLeft;
    }

    /// <summary>
    /// boss进入攻击状态的时候调用,开始显示boss血条
    /// </summary>
    public void OnShowUI(){
        self.DOFade(1,1f);
        empty.DOFade(1,1f);
        bossName.DOFade(1,1f);
    }

    private void RefrashUI(float HPPrograss){
        self.DOFillAmount(HPPrograss,2f);
    }



}