# prg 5-8 箭頭控制並顯示次數在畫面上
using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

public class ArrowController : MonoBehaviour
{
    GameObject player;
    GameObject arrow_text;
    public int arrows = 0;

    public TextMeshProUGUI textMeshProUGUI;
    // Start is called before the first frame update
    void Start()
    {
        this.player = GameObject.Find("player");
        arrow_text = GameObject.Find("Arrow_text");
    }

    // Update is called once per frame
    void Update()
    {
       transform.Translate(0,-0.1f,0);

       if (transform.position.y < -5.0f) {
        Destroy(gameObject);
       } 

       Vector2 p1 = transform.position;
       Vector2 p2 = this.player.transform.position;
       Vector2 dir = p1 - p2;
       float d = dir.magnitude;
       float r1 = 0.5f;
       float r2 = 1.0f;

       if (d < r1+r2) {

        GameObject director = GameObject.Find("GameDirector");
        director.GetComponent<GameDirector>().DecreaseHp();
        Destroy(gameObject);

        arrows = arrows+1;
        arrow_text.GetComponent<TextMeshProUGUI>().text = "Eat Arrow : "+arrows.ToString("D3");
        //Destroy(player);
       }
    }
}