Unity-对象池

最新推荐文章于 2020-04-28 20:56:22 发布

一只流浪的猿

最新推荐文章于 2020-04-28 20:56:22 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/jason_hw5d/article/details/109217809

本文介绍了解决频繁创建和销毁对象导致资源浪费的问题的对象池技术。通过实现对象的复用，提高程序运行效率。使用C#语言示例展示了如何创建和管理对象池。

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简介

解决某些对象频繁创建或销毁造成的时间资源消耗

实例

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

public class Test_ObjectPools  {

    private static Test_ObjectPools _instances;

    public static Test_ObjectPools GetInstances()
    {
        if (_instances==null)
        {
            _instances = new Test_ObjectPools();
        }
        return _instances;
    }

    //构造函数
    Dictionary<int, List<GameObject>> pools;

    public Test_ObjectPools()
    {
        pools = new Dictionary<int, List<GameObject>>();
    }

    public void PushIntoPool(GameObject obj,Transform parent)
    {
        obj.SetActive(false);
        obj.transform.SetParent(parent);
        int key = obj.GetInstanceID();
        if (!pools.ContainsKey(key))
        {
            pools.Add(key, new List<GameObject>());
        }
        pools[key].Add(obj);
    }

    public GameObject PushOutPool(GameObject obj,Vector3 pos, Quaternion rot)
    {
        int key = obj.GetInstanceID();
        if (pools.ContainsKey(key))
        {
            if (pools[key].Count>0)
            {
                GameObject result = pools[key][0];
                result.SetActive(true);
                pools[key].Remove(result);
                result.transform.position = pos;
                result.transform.rotation = rot;
                return result;
            }
        }

        GameObject res = GameObject.Instantiate(obj, pos, rot) as GameObject;

        res.name = obj.GetInstanceID().ToString();

        return res;
    }

}

参考

https://www.jianshu.com/p/090d928e7bbb