using System.Collections;
using System.Collections.Generic;
using UnityEngine;
// ★追加（パワー量の表示）
using UnityEngine.UI;

public class FireMissile : MonoBehaviour
{
    public GameObject missilePrefab;
    public float missileSpeed;
    public AudioClip fireSound;
    private int timeCount;
    private int maxPower = 100;
    private int shotPower;
    // ★追加（パワー量の表示）
    private Slider powerSlider;

    void Start()
    {
        shotPower = maxPower;

        // ★追加（パワー量の表示）
        powerSlider = GameObject.Find("PowerSlider").GetComponent<Slider>();
        powerSlider.maxValue = maxPower;
        powerSlider.value = shotPower;
    }

    void Update()
    {
        timeCount += 1;

        if (Input.GetButton("Fire1"))
        {
            if (shotPower <= 0)
            {
                return;
            }

            shotPower -= 1;

            // ★追加（パワー量の表示）
            // なぜこの位置にコードを記述するのか、そのロジックの流れをおさえること（ポイント）
            powerSlider.value = shotPower;

            if (timeCount % 5 == 0)
            {
                GameObject missile = Instantiate(missilePrefab, transform.position, Quaternion.identity);
                Rigidbody missileRb = missile.GetComponent<Rigidbody>();
                missileRb.AddForce(transform.forward * missileSpeed);
                AudioSource.PlayClipAtPoint(fireSound, transform.position);
                Destroy(missile, 2.0f);
            }
        }
    }
}