ResourceManager（四）—— ResourceUnit

目录为：Assets/Scripts/ResourceManagerResourceUnit.cs

ResourceUnit.cs

using System;using System.Collections;using System.Collections.Generic;using UnityEngine;using Object = UnityEngine.Object;//ResourceTypepublic enum ResourceType{    ASSET,    PREFAB,    LEVELASSET,    LEVEL,}//这个和AssetUnit挺像的,就是一个资源集合类//继承Idisposable//自己实现释放非托管资源，手动进行垃圾回收public class ResourceUnit: IDisposable{    private string mPath;    //保留了主要的Asset    private Object mAsset;    private ResourceType mResourceType;    private List<ResourceUnit> mNextLevelAssets;    //保留了AssetBundle    private AssetBundle mAssetBundle;    private int mAssetBundleSize;    private int mReferenceCount;    //构造函数    internal ResourceUnit(AssetBundle assetBundle, int assetBundleSize, Object asset, string path, ResourceType resourceType)    {        mPath = path;        mAsset = asset;        mResourceType = resourceType;        mNextLevelAssets = new List<ResourceUnit> ();        mAssetBundle = assetBundle;        mAssetBundleSize = assetBundleSize;        mReferenceCount = 0;    }    public Object Asset    {        get        {            return mAsset;        }        internal set        {            mAsset = value;        }    }    public ResourceType resourceType    {        get        {            return mResourceType;        }    }    public List<ResourceUnit> NextLevelAssets    {        get        {            return mNextLevelAssets;        }        internal set        {            foreach (ResourceUnit asset in value)            {                mNextLevelAssets.Add (asset);            }        }    }    public AssetBundle Assetbundle    {        get        {            return mAssetBundle;        }        set        {            mAssetBundle = value;        }    }    public int AssetBundleSize    {        get        {            return mAssetBundleSize;        }    }    public int ReferenceCount    {        get        {            return mReferenceCount;        }    }    //输出NextLevel的Assets信息    public void dumpNextLevel()    {        string info = mPath + "the mReferenceCount : " + mReferenceCount + "\n";        foreach (ResourceUnit ru in mNextLevelAssets)        {            ru.dumpNextLevel ();            info += ru.mPath + "\n";        }        Debug.Log (info, ResourceCommon.DEBUGTYPENAME);    }    //本身RefCount增加，下一级也要递归增加    public void addReferencCount()    {        ++mReferenceCount;        foreach (ResourceUnit asset in mNextLevelAssets)        {            asset.addReferencCount ();        }    }    //减少ReferenceCount，下一级也要递归减少    public void reduceReferenceCount()    {        --mReferenceCount;        foreach (ResourceUnit asset in mNextLevelAssets)        {            asset.reduceReferenceCount ();        }        if (isCanDestroy())        {            Dispose ();        }    }    //ReferenceCount为0时就可以释放掉了    public bool isCanDestroy()    {        return (0 == mReferenceCount);    }    //释放资源    public void Dispose()    {        ResourceCommon.Log ("Destroy" + mPath);        if (null != mAssetBundle)        {            //mAssetBundle.Unload(true);            mAssetBundle = null;        }        mNextLevelAssets.Clear ();        mAsset = null;    }}