u3d 缓冲池

　　主要参考 http://catlikecoding.com/unity/tutorials/  教程：

Pool类和Object类；

Pool.cs 负责管理一个ObjectList    行为： GetPool获取static Pool  GetObject AddObject     

Object.cs   给外部 GetObject   和AddObjectToPool

项目中设置pool，会进行计算使用次数，一定时间后，如果没有使用，则清除。

using UnityEngine;
using System.Collections.Generic;

public class ObjectPool : MonoBehaviour
{
    private List<PooledObject> mObjectList = new List<PooledObject>();
    public static ObjectPool GetPool(PooledObject fobj)
    {
        string tempPoolName = fobj.name + "Pool";
        ObjectPool tempPool = null;
        GameObject tempPoolGameobj = GameObject.Find(tempPoolName);
        if (tempPoolGameobj == null)
        {
            tempPoolGameobj = new GameObject(tempPoolName);
        }
        tempPool = tempPoolGameobj.GetComponent<ObjectPool>();
        if (tempPool == null)
        {
            tempPool = tempPoolGameobj.AddComponent<ObjectPool>();
        }
        return tempPool;
    }

    /// <summary>
    /// 获取缓冲区内的数据
    /// </summary>
    /// <returns></returns>
    public PooledObject GetPoolObj(PooledObject fobj)
    {
        int tempIndex = mObjectList.Count - 1;
        PooledObject tempObj = null;
        if (tempIndex >= 0)
        {
            tempObj = mObjectList[tempIndex];
            tempObj.gameObject.SetActive(true);
            mObjectList.RemoveAt(tempIndex);
        }
        else
        {
            tempObj = Instantiate<PooledObject>(fobj);
            tempObj.transform.SetParent(transform, false);
            tempObj.mPool = this;
        }
        return tempObj;
    }
    /// <summary>
    /// 向缓冲区内添加数据
    /// </summary>
    public void AddObjToPool(PooledObject fpoolObj)
    {
        fpoolObj.gameObject.SetActive(false);
        mObjectList.Add(fpoolObj);
    }

}

　　

using UnityEngine;

public class PooledObject : MonoBehaviour
{
    [System.NonSerialized]
    public ObjectPool mPool = null;


    public int testInt = 1;
    //获取池中object
    public T GetObject<T>() where T : PooledObject
    {
        if (mPool == null)
        {
            mPool = ObjectPool.GetPool(this);
        }
        testInt = 2;
        return (T)mPool.GetPoolObj(this);
    }

    //把此object加入池中

    public void AddObjToPool()
    {
        Debug.LogError("testInt :" + testInt);
        if (mPool == null)
        {
            Debug.LogError("is null!!!!");
        }
        if (mPool != null)
        {
            mPool.AddObjToPool(this);
        }
    }
}