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

public class EnemyShotBeam : MonoBehaviour
{
    public GameObject beamPrefab;
    public AudioClip sound;
    public float area;
    public int shotInterval;
    private int count;
    private GameObject target;

    void Start()
    {
        target = GameObject.Find("Player");
    }

    void Update()
    {
        // （ポイント）Distanceは２点間の距離を求めるもの
        // プレーヤーがarea内に侵入したら攻撃を開始する。
        if (Vector3.Distance(transform.position, target.transform.position) < area)
        {
            count += 1;

            if (count % shotInterval == 0)
            {
                GameObject beam = Instantiate(beamPrefab, transform.position, transform.rotation);
                Destroy(beam, 5.0f);

                AudioSource.PlayClipAtPoint(sound, transform.position);
            }
        }
    }
}

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

public class EnemyShotBeam : MonoBehaviour
{
    public GameObject beamPrefab;
    public AudioClip sound;
    public float area;
    public int shotInterval;
    private int count;
    private GameObject target;

    void Start()
    {
        target = GameObject.Find("Player");
    }

    void Update()
    {
        if (Vector3.Distance(transform.position, target.transform.position) < area)
        {
            // ★追加（向きを変える）
            transform.LookAt(target.transform);

            // ★追加（色を赤に変える）
            GetComponent<MeshRenderer>().material.color = Color.red;

            count += 1;

            if (count % shotInterval == 0)
            {
                GameObject beam = Instantiate(beamPrefab, transform.position, transform.rotation);
                Destroy(beam, 5.0f);

                AudioSource.PlayClipAtPoint(sound, transform.position);
            }
        }
        // ★追加（距離が離れたら色を白に戻す）
        else
        {
            GetComponent<MeshRenderer>().material.color = Color.white;
        }
    }
}