单列（写了池子pool）用list实现的方法， 与伪单例(写了池子zidianpool)，用字典实现的方法，可以存入不同，i名字的物体

用字典写的池子，还用了伪单利

伪单利要找一个物体把脚本挂起来，get方法要挂在你要点击的butten上，set脚本要挂在需要调用出来的物体上
池子代码（用字典写的）：

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

public class zidianPool:MonoBehaviour//伪单列
{
    public static zidianPool Instace;//公有静态接口
    private void Start()
    {
        Instace = this;//生命周期内是咧
    }

    //private static zidianPool instance;
    //private zidianPool() { }
    //public static zidianPool Instace
    //{
    //      get {
    //        if (instance==null)
    //        {
    //            instance = new zidianPool();
    //        }
    //        return instance;
    //    }
    //}

    Dictionary<string,List<GameObject>> dir=new Dictionary<string,List<GameObject>>();//存放不同形状的物体
    public GameObject ISget(string name)
    {
        GameObject go = null;//要拿出来的东西
        if (dir.ContainsKey(name))//是否包含named的key
        {
            List<GameObject> list=dir[name];
            if (list.Count>0)
            {
                go = list[0];
                go.SetActive(true);
                list.RemoveAt(0);
            }
        }
        if (go==null)//没有名字 或者list为空的时候
        {
            go=GameObject.Instantiate(Resources.Load(name)) as GameObject;
            int index = go.name.IndexOf("(Clone)");
            go.name = go.name.Substring(0, index);
        }
        return go;
    }

    public void Isset(GameObject obj)
    {
        obj.SetActive(false);
        if (dir.ContainsKey(obj.name))//字典里是否已经有包含的物体
        {
            dir[obj.name].Add(obj);

        }
        else
        {
            List<GameObject> list = new List<GameObject>();
            list.Add(obj);
            dir[obj.name] = list;
        }

     //   obj.transform.parent = GameObject.Find("panel").transform;
    }
}

get方法的脚本，也就是把东西拿出：

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

public class getzidian : MonoBehaviour {
    string[] s = { "Capsule", "Sphere" };
    public void get()
    {
       GameObject gp= zidianPool.Instace.ISget(s[Random.Range(0,2)]);
       gp.transform.position = new Vector3(0, 5, 0);
    }
}

set的脚本，也就是存入：

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

public class setzidian : MonoBehaviour {

    // Use this for initialization
    void Start () {
        
    }
    
    // Update is called once per frame
    void Update () {
        if (transform.position.y<-5)
        {
            zidianPool.Instace.Isset(gameObject);
        }
    }
}

 

 

用list写的单列，单利不需要挂脚本

池子的脚本代码：

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

public class pool {

    private static pool instance;
    private pool() { }
    public static pool Instance
    {
        get {
            if (instance==null)
            {
                instance = new pool();
            }
            return instance;
        }
    }
    List<GameObject> listpool = new List<GameObject>();
    public GameObject GetCube(string name)
    {
        Debug.Log("我在池子里");
        GameObject go = null;
        if (listpool.Count>0)
        {
            go = listpool[0];
            go.SetActive(true);
            listpool.RemoveAt(0);
        }
        if (go==null)
        {
            go = GameObject.Instantiate(Resources.Load(name)) as GameObject;
            int index = go.name.IndexOf("(Clone)");
            go.name = go.name.Substring(0, index);
        }
        return go;
    }
    public void setpool(GameObject obj)
    {
        obj.SetActive(false);
        listpool.Add(obj);
    }
}

getj脚本，拿出要存入的东西：

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

public class get : MonoBehaviour {
    GameObject obj;
    // Use this for initialization
    void Start () {
        
    }
    public void GetPool()
    {
       obj=  pool.Instance.GetCube("Cube");
      obj.transform.position = new Vector3(0,5,0);
    }
    // Update is called once per frame
    void Update () {
        
    }
}

set脚本，就是把东西存入里面：

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

public class set : MonoBehaviour {

    // Use this for initialization
    void Start () {
        
    }
    
    // Update is called once per frame
    void Update () {
        if (gameObject.activeSelf)
        {
            if (transform.position.y < -5)
            {
                pool.Instance.setpool(gameObject);
            }
        }
    }
}