实例池
介绍
- 介绍
- 功能实现
- 食用方法
有时候我们会在场景中实例化许多的物体,比如子弹,实例化一个物体需要花费一定的时间，虽然它肉眼不可见，但如果在某个时刻要实例化一堆子弹呢？那它就会造成卡顿的情况发生。要解决这个问题，我们可以在加载的时候预先实例化好一小堆的子弹，就好比士兵身上的备用弹夹。这样在射击的时候就不用花时间装子弹了。而且在虚拟世界我们还可以回收那些用过的子弹循环利用，这样本来需要在场景中实例化10000的子弹可能只需要100颗就够用了。这就是今天的主角实例池。
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.edge-pattern-dashed{stroke-dasharray:3}#mermaid-svg-zmkZV5zlDbIhA5wa .edge-pattern-dotted{stroke-dasharray:2}#mermaid-svg-zmkZV5zlDbIhA5wa .marker{fill:#333}#mermaid-svg-zmkZV5zlDbIhA5wa .marker.cross{stroke:#333}
:root { --mermaid-font-family: "trebuchet ms", verdana, arial;}
#mermaid-svg-zmkZV5zlDbIhA5wa {
color: rgba(0, 0, 0, 0.75);
font: ;
}
功能实现
预先实例化一定数量的子弹
提供子弹
发射
发射后被回收
实例池
子弹
士兵
using System.Collections.Generic;
using UnityEngine;
using Sirenix.OdinInspector;
using System.Linq;
namespace ZYF
{
/*[TypeInfoBox("ଘ(੭ˊ꒳ˋ)੭✧ 实例池\n" +
"ଘ(੭ˊ꒳ˋ)੭✧ 避免经常实例化预制体" +
"")]*/
public class ZYF_InstancePool where T : Component
{
private static Dictionary poolDic = new Dictionary();
///
/// 获取实例
/// 先给空闲实例，没有再实例化一个返回
///
///
///
///
internal static T GetInstance(T prefab, Transform parent)
{
List pool = GetPool(prefab);
T instance = pool.FirstOrDefault();
pool.Remove(instance);
if (instance == null)
{
Debug.Log($"实例池没有 {prefab.name} 的空闲实例，新实例化");
instance = GameObject.Instantiate(prefab,parent);
}
else {
Debug.Log($"使用实例池 {instance.name} 的空闲实例",instance);
}
return instance;
}
private static List GetPool(T prefab)
{
List pool;
if (poolDic.ContainsKey(prefab) == false)
{
pool = new List();
poolDic.Add(prefab, pool);
}
else
{
pool = poolDic[prefab];
}
return pool;
}
///
/// 回收实例
///
///
///
internal static void RecycleInstance(T prefab, T instance)
{
if (instance != null)
{
instance.gameObject.SetActive(false);
var pool = GetPool(prefab: prefab);
pool.Add(instance);
Debug.LogError($"回收实例{instance.name}",instance);
}
else {
Debug.LogError($"回收实例失败，{prefab.name}实例已被删除");
}
}
}
}
1.使用GetInstance获取实例。 2.使用RecycleInstance回收实例。
