308 lines
9.6 KiB
C#
308 lines
9.6 KiB
C#
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using System;
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using System.Collections.Generic;
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using Module.Log;
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using UnityEngine;
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using UnityEngine.Events;
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using Object = UnityEngine.Object;
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/// <summary>
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/// 自主加载元件的管理池
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/// </summary>
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// 接收到需求时，如果元件池存在，则从元件池中释放一个物体；如果元件池不存在，则试图加载元件资源并建立元件池
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public class AutoLoadPool<TItem, TLoadData, TLoadTask> where TItem : Component
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where TLoadData : BaseLoadData<TItem, TLoadData>
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where TLoadTask : BaseLoadTask<TItem, TLoadData, TLoadTask>, new()
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{
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public int inUseCount { get; private set; }
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private readonly UnityAction<TItem> _createAction;
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private readonly Transform _root;
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private readonly bool _archive;
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protected List<TLoadTask> loadTaskList;
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// 用于标识组件池是否已经被析构的标志位，现在无法做组件析构顺序规划，暂时用这个代替
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protected List<AssetPrefabPool<TItem>> poolList;
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public AutoLoadPool(Transform root, bool archive, UnityAction<TItem> createAction)
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{
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_root = root;
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_archive = archive;
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_createAction = createAction;
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poolList = new List<AssetPrefabPool<TItem>>();
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loadTaskList = new List<TLoadTask>();
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}
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/// <summary>
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/// 销毁自动加载池
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/// </summary>
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public void Kill()
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{
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for (var i = 0; i < poolList.Count; i++)
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poolList[i].Kill();
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poolList = null;
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for (var i = 0; i < loadTaskList.Count; i++)
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try
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{
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loadTaskList[i].ReleaseLoad();
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}
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catch (Exception e)
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{
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LogModule.ErrorLog(e.ToString());
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}
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inUseCount = 0;
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loadTaskList = null;
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Object.Destroy(_root.gameObject);
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}
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public void ShowDebugGui()
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{
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GUILayout.Label("Auto Pool " + poolList.Count + ", In Use Assets " + inUseCount);
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for (var i = 0; i < poolList.Count; i++)
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GUILayout.Label(poolList[i].assetName + ": " + poolList[i].inUseCount);
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}
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/// <summary>
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/// 移除已经没有使用，且超过使用时间未使用的物体
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/// </summary>
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/// <param name="time"></param>
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public void CleanUnusedPool(float time)
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{
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var removeTime = Time.realtimeSinceStartup - time;
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for (var i = poolList.Count - 1; i >= 0; i--)
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{
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var pool = poolList[i];
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if (pool.inUseCount <= 0 && pool.lastUseTime < removeTime)
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{
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pool.Kill(true);
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poolList.RemoveAt(i);
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}
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}
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}
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/// <summary>
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/// 从池中获得物品
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/// </summary>
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/// <param name="taskStarter">加载数据</param>
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/// <param name="bundleName">资源包名称</param>
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/// <param name="prefabName">物体名称</param>
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public void PullItem(TLoadData taskStarter, string bundleName, string prefabName)
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{
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var pool = FindPool(bundleName, prefabName);
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// 特效池不存在时，试图加载特效
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if (pool == null)
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{
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var loadTask = FindLoadTask(bundleName, prefabName);
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// 加载任务不存在时，试图加载特效
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if (loadTask == null)
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{
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loadTask = new TLoadTask();
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loadTaskList.Add(loadTask);
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loadTask.Init(taskStarter, bundleName, prefabName, _archive, OnLoadTaskFinished);
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}
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else
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{
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loadTask.TryAddListener(taskStarter, bundleName, prefabName);
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}
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}
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else if (taskStarter.callback != null)
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{
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taskStarter.callback(pool.PullItem(taskStarter.root), taskStarter);
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inUseCount++;
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}
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}
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protected virtual void OnLoadTaskFinished(TLoadTask loadTask)
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{
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loadTaskList.Remove(loadTask);
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var prefab = loadTask.Prefab.GetComponent<TItem>();
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var pool = new AssetPrefabPool<TItem>(loadTask.BundleName, loadTask.PrefabName, _archive, _root, prefab, _createAction);
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poolList.Add(pool);
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for (var i = 0; i < loadTask.taskListeners.Count; i++)
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try
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{
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var loadData = loadTask.taskListeners[i];
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if (loadData.callback != null)
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{
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inUseCount++;
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loadData.callback(pool.PullItem(loadData.root), loadData);
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}
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}
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catch (Exception e)
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{
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LogModule.ErrorLog(e.ToString());
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}
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}
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/// <summary>
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/// 将物品退回到物品池中
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/// </summary>
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/// <param name="bundleName">资源包名称</param>
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/// <param name="prefabName">物体名称</param>
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/// <param name="item">物体</param>
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public void PushItem(string bundleName, string prefabName, TItem item)
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{
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var pool = FindPool(bundleName, prefabName);
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if (pool != null)
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{
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inUseCount--;
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pool.PushItem(item);
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}
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}
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// 不使用物体，但是要求增加使用记录
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// 主要用于预加载后，持有。
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// 持有者需要主动调用ReduceCount来释放持有，慎用。
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// noEntity表示不是实体，因此不会占用EffectLimit
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public void AddCount(string bundleName, string prefabName, bool noEntity = false)
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{
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// 不退回物体，但是要求减少使用记录
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var pool = poolList.Find(a => a.Match(bundleName, prefabName));
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if (pool != null)
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{
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if (!noEntity)
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inUseCount++;
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pool.AddCount();
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}
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}
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// noEntity表示不是实体，因此不会占用EffectLimit
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public void ReduceCount(string bundleName, string prefabName, bool noEntity = false)
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{
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// 不退回物体，但是要求减少使用记录
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var pool = poolList.Find(a => a.Match(bundleName, prefabName));
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if (pool != null)
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{
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if(!noEntity)
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inUseCount--;
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pool.ReduceCount();
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}
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}
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/// <summary>
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/// 预加载资源，不处理其他问题
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/// </summary>
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public bool Preload(string bundleName, string prefabName)
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{
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var pool = FindPool(bundleName, prefabName);
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// 特效池不存在时，试图加载特效
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if (pool == null)
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{
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var loadTask = FindLoadTask(bundleName, prefabName);
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// 加载任务不存在时，试图加载特效
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if (loadTask == null)
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{
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loadTask = new TLoadTask();
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loadTaskList.Add(loadTask);
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loadTask.Init(null, bundleName, prefabName, _archive, OnLoadTaskFinished);
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}
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}
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return pool == null;
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}
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/// <summary>
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/// 取消物体获得监听事件
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/// </summary>
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public void RemoveLoadTask(Predicate<TLoadData> predicate)
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{
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// if (!Killed)
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// {
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// 移除对加载事件的监听
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for (var i = 0; i < loadTaskList.Count; i++)
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try
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{
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// 注：故意不移除loadTaskList，仍然完成加载并建立物品池
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loadTaskList[i].RemoveListener(predicate);
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}
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catch (Exception e)
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{
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LogModule.ErrorLog(e.ToString());
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}
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}
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private TLoadTask FindLoadTask(string bundleName, string prefabName)
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{
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TLoadTask result = null;
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for (var i = 0; i < loadTaskList.Count; i++)
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if (loadTaskList[i].Match(bundleName, prefabName))
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{
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result = loadTaskList[i];
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break;
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}
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return result;
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}
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private AssetPrefabPool<TItem> FindPool(string bundleName, string prefabName)
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{
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AssetPrefabPool<TItem> result = null;
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for (var i = 0; i < poolList.Count; i++)
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if (poolList[i].Match(bundleName, prefabName))
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{
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result = poolList[i];
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break;
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}
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return result;
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}
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}
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/// <summary>
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/// 记录资源包名以及资源名称的池
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/// </summary>
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public class AssetPrefabPool<T> : CommonPool<T> where T : Component
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{
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public readonly string assetName;
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public readonly string bundleName;
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public readonly bool archive;
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public AssetPrefabPool(string bundleName, string assetName, bool archive, Transform poolRoot, T prefab,
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UnityAction<T> createAction = null) : base(poolRoot, prefab, createAction)
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{
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this.bundleName = bundleName;
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this.assetName = assetName;
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this.archive = archive;
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lastUseTime = Time.realtimeSinceStartup;
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}
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public int inUseCount { get; private set; }
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public float lastUseTime { get; private set; }
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public bool Match(string pBundleName, string pAssetName)
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{
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return bundleName == pBundleName && assetName == pAssetName;
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}
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// 注：已知播放完销毁的特效inUseCount会只增不减，但这种情况下也不会返回资源池，因此不需要清理
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protected override void OnPullItem(T item)
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{
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base.OnPullItem(item);
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inUseCount++;
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}
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protected override void OnPushItem(T item)
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{
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base.OnPushItem(item);
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ReduceCount();
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}
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public void AddCount()
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{
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inUseCount = Mathf.Max(0, inUseCount) + 1;
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lastUseTime = Time.realtimeSinceStartup;
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}
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public void ReduceCount()
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{
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inUseCount--;
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if (inUseCount <= 0)
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lastUseTime = Time.realtimeSinceStartup;
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}
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public override void Kill(bool destroyCache = false)
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{
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if (archive)
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LoadAssetBundle.Instance.UnloadAsset(bundleName, assetName);
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base.Kill(destroyCache);
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}
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}
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