unity用tntスクリプト

using UnityEngine;
using System.Collections;

public class tntScript : MonoBehaviour
{
    private Renderer objectRenderer;
    private bool isEmissionOn = false;
    private Coroutine emissionCoroutine;
    private bool isColliding = false;
    public AudioClip explosionSound; // 爆発音のオーディオクリップ
    private AudioSource audioSource;

    void Start()
    {
        objectRenderer = GetComponent<Renderer>();
        audioSource = GetComponent<AudioSource>();
        DontDestroyOnLoad(gameObject); // オブジェクトをシーン間で保持する
    }

    void Update()
    {
        if (isColliding && Input.GetMouseButtonDown(0)) // 左クリック
        {
            if (emissionCoroutine == null)
            {
                Debug.Log("Emission toggle started.");
                emissionCoroutine = StartCoroutine(ToggleEmission());
            }
        }
    }

    void OnCollisionEnter(Collision collision)
    {
        if (collision.gameObject.CompareTag("Player"))
        {
            isColliding = true;
            Debug.Log("Player collided.");
        }
    }

    void OnCollisionExit(Collision collision)
    {
        if (collision.gameObject.CompareTag("Player"))
        {
            isColliding = false;
            Debug.Log("Player exited collision.");
        }
    }

    IEnumerator ToggleEmission()
    {
        float elapsedTime = 0f;

        // 点滅が始まる瞬間に音を再生
        if (explosionSound != null && audioSource != null)
        {
            Debug.Log("Playing explosion sound...");
            audioSource.PlayOneShot(explosionSound);
        }
        else
        {
            if (explosionSound == null)
                Debug.LogError("Explosion sound is null!");
            if (audioSource == null)
                Debug.LogError("AudioSource is null!");
        }

        while (elapsedTime < 4f)
        {
            isEmissionOn = !isEmissionOn;
            SetEmission(isEmissionOn ? 10 : 0);
            Debug.Log("Emission set to " + (isEmissionOn ? 10 : 0));
            yield return new WaitForSeconds(0.5f); // 0.5秒ごとに切り替え
            elapsedTime += 0.5f;
        }
        //SetEmission(0); // 点滅終了後にEmissionをオフにする
        Debug.Log("Emission toggle ended.");
        StartCoroutine(Explosion()); // 4秒後にexplosion関数を呼び出す
    }

    void SetEmission(float intensity)
    {
        if (intensity != 0)
        {
            objectRenderer.material.EnableKeyword("_EMISSION");
            objectRenderer.material.SetColor("_EmissionColor", Color.white * intensity);
        }
        else
        {
            objectRenderer.material.DisableKeyword("_EMISSION");
        }
    }

    IEnumerator Explosion()
    {
        Debug.Log("Explosion triggered!");

        // オブジェクトを膨張させる
        Vector3 originalScale = transform.localScale;
        transform.localScale = originalScale * 1.5f;

        // プレーヤーを吹き飛ばす
        Collider[] colliders = Physics.OverlapSphere(transform.position, 10f); // 爆発範囲を設定
        foreach (Collider hit in colliders)
        {
            Rigidbody rb = hit.GetComponent<Rigidbody>();
            if (rb != null && hit.CompareTag("Player"))
            {
                rb.AddExplosionForce(1000f, transform.position, 10f, 1f, ForceMode.Impulse); // 吹き飛ばす力を設定
            }
        }

        yield return new WaitForSeconds(0.5f); // 0.5秒後に削除
        Destroy(transform.parent.gameObject); // 親オブジェクトを削除する
    }
}