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

public class DoorMove : MonoBehaviour
{
    private Vector3 initialPos;
    public float goalPos;

    void Start()
    {
        initialPos = transform.position;
    }

    void Update()
    {
        // 今回はY方向に動くドアを想定
        transform.position = Vector3.MoveTowards(transform.position, new Vector3(initialPos.x, goalPos, initialPos.z), Time.deltaTime);
    }
}

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

// 「abstract」キーワードの追加
public abstract class SensorBase : MonoBehaviour
{
    public GameObject target;
    public AudioClip sound;

    public virtual void OnTriggerEnter(Collider other)
    {
        this.gameObject.SetActive(false); // センサーの使用は１回のみ
    }
}

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

public class Sensor1 : SensorBase // 変更
{
    public override void OnTriggerEnter(Collider other)
    {
        base.OnTriggerEnter(other);

        if (other.CompareTag("Player"))
        {
            AudioSource.PlayClipAtPoint(sound, Camera.main.transform.position);

            target.GetComponent<DoorMove>().enabled = true;
        }
    }
}