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

public class ShopManager : MonoBehaviour
{
    private int[] enemyCount = new int[4];
    public TextMeshProUGUI[] enemyLabel;

    void Start()
    {
        enemyLabel[0].text = "" + enemyCount[0];
        enemyLabel[1].text = "" + enemyCount[1];
        enemyLabel[2].text = "" + enemyCount[2];
        enemyLabel[3].text = "" + enemyCount[3];
    }

    public void AddEnemyCount(int num)
    {
        enemyCount[num] += 1;
        enemyLabel[num].text = "" + enemyCount[num];
    }
}

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

public class EnemyBot_A : EnemyBase
{
    private void Start()
    {
        HP = 1;
    }

    // ★追加
    public override void TakeDamage(int attackPower)
    {
        HP -= attackPower;

        if (HP < 1)
        {
            Destroy(gameObject);

            // ポイント（外部メソッドの呼び出し）
            GameObject.Find("ShopManager").GetComponent<ShopManager>().AddEnemyCount(0); // 対応する番号を間違えないこと
        }
    }
}