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

public class FootAttack : MonoBehaviour
{
    public AudioClip sound;
    private Rigidbody2D rb2d;

    // ★追加（エフェクト発生）
    public GameObject effectPrefab;

    private void Start()
    {
        rb2d = GetComponent<Rigidbody2D>();
    }

    private void Update()
    {
        RaycastHit2D hit2d = Physics2D.Raycast(transform.position, Vector2.down, 0.6f);

        if(hit2d.collider != null)
        {
            if(hit2d.collider.CompareTag("Enemy"))
            {
                Destroy(hit2d.collider.gameObject);

                AudioSource.PlayClipAtPoint(sound, transform.position);

                rb2d.velocity = Vector2.up * 3.5f;

                // ★追加（エフェクト発生）
                Instantiate(effectPrefab, hit2d.collider.transform.position, Quaternion.identity);
            }
        }

        Debug.DrawRay(transform.position, Vector3.down, Color.yellow, 0.6f);
    }
}
C#