using System.Collections;
using System.Collections.Generic;
using UnityEngine;
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;
    private Slider powerSlider;
    const int RecoveryTime = 10;
    private int counter;
    // ★追加（発射パワーの表示）
    private Slider waitTimeSlider;

    void Start()
    {
        shotPower = maxPower;
        powerSlider = GameObject.Find("PowerSlider").GetComponent<Slider>();
        powerSlider.maxValue = maxPower;
        powerSlider.value = shotPower;

        // ★追加（発射パワーの表示）
        waitTimeSlider = GameObject.Find("WaitTimeSlider").GetComponent<Slider>();
        waitTimeSlider.maxValue = RecoveryTime;
        waitTimeSlider.value = RecoveryTime;
    }

    void Update()
    {
        if (shotPower <= 0 && counter <= 0)
        {
            StartCoroutine(RecoverPower());
        }

        timeCount += 1;

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

            shotPower -= 1;
            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);
            }
        }
    }

    IEnumerator RecoverPower()
    {
        counter = RecoveryTime;

        while (counter > 0)
        {
            yield return new WaitForSeconds(1.0f);
            counter -= 1;

            // ★追加（発射パワーの表示）
            waitTimeSlider.value = counter;

            print("全回復までの残り時間" + counter + "秒");
        }

        shotPower = maxPower;
        powerSlider.value = shotPower;

        // ★追加（発射パワーの表示）
        // 待機時間が終了したら待機ゲージを最初の状態に戻す。
        waitTimeSlider.value = RecoveryTime;
    }

    public void ResetPower()
    {
        shotPower = maxPower;
        powerSlider.value = shotPower;

        counter = 0;

        // ★追加（発射パワーの表示）
        // プレーヤーが破壊されたら待機ゲージを最初の状態に戻す。
        waitTimeSlider.value = RecoveryTime;
    }
}
C#