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

public class PlayerHpBar : MonoBehaviour
{
    [SerializeField]
    private float HPLeft = -1f;
    private MyPlayer player;
    [SerializeField][ListDrawerSettings]
    private List<Image> hearts;
    public Sprite full;
    public Sprite empty;

    void Start(){
        hearts = new List<Image>();
        //找到必要的物体和组件
        player = FindObjectOfType<MyPlayer>();
        for(int i = 0; i < 10; i++){
            hearts.Add(transform.GetChild(i).GetComponent<Image>()); 
        }
    }

    void Update(){
        //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 != player.HPLeft) RefrashUI((int) player.HPLeft);
        HPLeft = player.HPLeft;
    }

    void RefrashUI(int left){
        Debug.Log("触发");
        foreach(Image t in hearts){
            if(left > 0) t.sprite = full;
            else t.sprite = empty;
            left--;
        }
    }

}