using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Blast : MonoBehaviour
{
    public GameObject effectPrefab;
    public AudioClip sound;
    // 爆発の威力
    private float power = 10f;
    // 爆風の範囲（半径）
    private float radius = 10f;

    private void OnCollisionEnter(Collision collision)
    {
        GameObject effect = Instantiate(effectPrefab, transform.position, Quaternion.identity);
        Destroy(effect, 0.5f);
        AudioSource.PlayClipAtPoint(sound, transform.position);

        // アイテムの位置が爆心地（ここを中心に周囲に爆風を及ぼす）
        Vector3 explosionPos = transform.position;

        // 爆心地から指定した範囲内にあるオブジェクトのColliderを取得する。
        Collider[] colliders = Physics.OverlapSphere(explosionPos, radius);

        foreach(Collider hit in colliders)
        {
            Rigidbody rb = hit.GetComponent<Rigidbody>();

            if(rb != null)
            {
                rb.AddExplosionForce(power, transform.position, radius, 1.0f, ForceMode.VelocityChange);
            }
        }

        Destroy(gameObject);
    }
}