UIFramework之对象池的使用

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。