Unity-对象池

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