Unity講座｜NPCとの会話イベントの作り方【2D】

using UnityEngine;
using UnityEngine.UI;

public class talk : MonoBehaviour
{
    public GameObject dialogue;
    public Text Text;

   [SerializeField] 
   string words = "ここにセリフ";

    private void OnCollisionEnter2D(Collision2D other)
     {
        if (other.gameObject.CompareTag("Player"))
        {
            Text.text = words;
         dialogue.SetActive (true);
        }
    }

    private void OnCollisionExit2D(Collision2D other)
     {
        if (other.gameObject.CompareTag("Player"))
        {
   dialogue.SetActive (false);
        }
    }
}