UIFramework之对象池的使用

在游戏开发中，像子弹这类物体会被频繁的创建，然后被销毁，这样的操作对游戏性能也会造成严重的浪费。所以对象池的使用，可以减少需要频繁创建销毁的物体的操作，达到对性能的优化。

/** Name: ObjectPoolManager.cs* Function: Object Pool Manager Class. * * Ver     Date                Name                            Change Content* ────────────────────────────────────────────────────────────────────────────* V1.0.0  20170430    http://blog.csdn.net/husheng0      Creat ObjectPoolManager.cs* * Copyright (c). All rights reserved.* */using UnityEngine;using System.Collections;using System.Collections.Generic;using System;/// <summary>/// Object Pool Manager/// </summary>public class ObjectPoolManager : MonoSingletonManager<ObjectPoolManager>{    private Dictionary<Type, Stack<MonoBehaviour>> ObjectDic         = new Dictionary<Type, Stack<MonoBehaviour>>();    /// <summary>    /// Get or Great Object From Pool    /// </summary>    /// <typeparam name="T">Type</typeparam>    /// <param name="objectName">object Name</param>    /// <returns>Type</returns>    public T GetObjectFromPool<T>(string objectName)         where T :MonoBehaviour,IPoolObject,new()    {        Type type = typeof(T);        object obj = null;        T ctrl = null;        if (ObjectDic.ContainsKey(type))        {            if (ObjectDic[type].Count == 0)            {                obj = GameObject.Instantiate(Resources.Load(objectName));                ctrl = ((GameObject)obj).GetComponent<T>();            }            if (ObjectDic[type].Count > 0)            {                obj = ObjectDic[type].Pop();                ctrl = (T)obj;            }        }        else        {            obj = GameObject.Instantiate(Resources.Load(objectName));            ctrl = ((GameObject)obj).GetComponent<T>();        }        ctrl.gameObject.SetActive(true);        if(ctrl!=null)ctrl.Spawn();        return ctrl;    }    /// <summary>    /// Disappear Object To Pool    /// </summary>    /// <typeparam name="T">Type</typeparam>    /// <param name="ctrl">object</param>    /// <param name="objCount">count</param>    public void DisappearObjectToPool<T>(T ctrl,int objCount)          where T : MonoBehaviour,IPoolObject, new()    {        Type type = typeof(T);        if (!ObjectDic.ContainsKey(type))        {            ObjectDic.Add(type, new Stack<MonoBehaviour>());        }        ctrl.UnSpawn();        ctrl.gameObject.SetActive(false);        if (ObjectDic[type].Count < objCount)        {            ObjectDic[type].Push((MonoBehaviour)ctrl);        }        else        {            GameObject.Destroy(ctrl.gameObject);        }    }    /// <summary>    /// clear pool    /// </summary>    public void ClearPool()    {        foreach (KeyValuePair<Type,Stack<MonoBehaviour>> tempStack in ObjectDic)        {            while(tempStack.Value.Count > 0)            {                GameObject.Destroy(tempStack.Value.Pop().gameObject);            }        }    }}public interface IPoolObject{    /// <summary>    /// init    /// </summary>    void Spawn();    /// <summary>    /// Finallize    /// </summary>    void UnSpawn();}

using UnityEngine;using System.Collections;public class Bullet : MonoBehaviour, IPoolObject{    public Bullet() {    }    public void Spawn()    {        Debug.Log("----->Spawn");    }    public void UnSpawn()    {        Debug.Log("----->UnSpawn");    }}

using UnityEngine;using System.Collections;using System.Collections.Generic;public class Test : MonoBehaviour{    private const string PerfabName = "Bullet";    //限定对象池缓存数目    private int count = 3;    private List<Bullet> bulletList = new List<Bullet>();    void OnGUI()    {        if (GUILayout.Button("Great Bullet"))        {            for (int i = 0; i < 5; i++)            {                Bullet bullet = ObjectPoolManager.Instance.GetObjectFromPool<Bullet>(PerfabName);                bulletList.Add(bullet);            }        }        if (GUILayout.Button("Disapper Bullet"))        {            for (int i = 0; i < bulletList.Count; i++)            {                ObjectPoolManager.Instance.DisappearObjectToPool<Bullet>(bulletList[i], count);            }            bulletList.Clear();        }        if (GUILayout.Button("Distroy All"))        {            ObjectPoolManager.Instance.ClearPool();        }    }}

点击不同的Button，会发现，Bullet.cs的Spawn();UnSpawn();顺利执行。