7-2. 场景互动的逻辑实现

创建可互动接口

实现宝箱代码

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

public class Chest : MonoBehaviour, IInteractable
{
    private SpriteRenderer spriteRenderer;
    public Sprite openSprite;
    public Sprite closeSprite;
    public bool isDone;

    private void Awake()
    {
        spriteRenderer = GetComponent<SpriteRenderer>();
    }

    private void OnEnable()
    {
        spriteRenderer.sprite = isDone ? openSprite : closeSprite;
    }

    public void TriggerAction()
    {
        // Debug.Log("Open Chest!");
        if (!isDone)
        {
            OpenChest();
        }
    }

    private void OpenChest()
    {
        spriteRenderer.sprite = openSprite;
        isDone = true;
        gameObject.tag = "Untagged";
    }
}

宝箱实现了 IInteractable 接口，当玩家和宝箱交互的时候，就会触发 TriggerAction 方法，然后更改宝箱图片、标识宝箱已完成，让了防止已经打开的宝箱人物站在旁边依旧显示标识，需要将它的 tag 改为 Untagged