1、下面這個程式碼是用list集合建立的簡易物件池，只能儲存一種遊戲物件。

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

public class GameObjectPool : MonoBehaviour
{
    public List<GameObject> objList = new List<GameObject>();
    public int count;//初始化場景中有幾個物件
    public int currentIndex = 0
 
;
    public GameObject prefab;//要克隆的物件
    public bool isLimit = false;  //是否限制 無限克隆
    public static GameObjectPoolCon _Instance;
    private void Awake()
    {
        _Instance = this;
        for (int i = 0; i < count; i++)
        {
            GameObject go = Instantiate(prefab);
            go.SetActive(false
 
);
            objList.Add(go);//把初始化出來的物件 設定為不可見並且存放到 list列表中
        }

    }
    public GameObject CreateObj()
    {

        for (int i = 0; i < objList.Count; i++)
        {
            int index = (currentIndex + i) % objList.Count;//保證index 不會超出索引
            if (!objList[index].activeInHierarchy)
            {
                currentIndex = (index + 1
 
) % objList.Count;
                return objList[index];
            }
        }
        if (!isLimit)
        {
            GameObject go = Instantiate(prefab);
           // go.SetActive(false);//不在設定為不可見 ，因為即刻就要用
            objList.Add(go);
            return go;
        }
        return null;
    }
}

2、下面的程式碼是從物件池中呼叫遊戲物件。此程式碼適合用到射擊遊戲中

 public Transform oriPos;//每次重新賦予新的位置
    GameObject go;
    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            go = GameObjectPool._Instance.CreateObj();
            if (go != null)
            {
                go.SetActive(true);
                go.transform.position = oriPos.position;
                go.GetComponent<Rigidbody>().velocity = Vector3.one;
            }
        }
    }