/// <summary>
/// 构建节点依赖链
/// </summary>
/// <param name="_nodeMaping">节点映射</param>
public void BuildDependencyLink(Dictionary <int, EditorSelectionAssetBundleNameAsset> _nodeMaping)
{
string[] dps = AssetDatabase.GetDependencies(path, false);
if (dps != null && dps.Length > 0)
{
EditorSelectionAssetBundleNameAsset temp = null;
foreach (string d in dps)
{
if (!d.Equals(guid))
{
temp = new EditorSelectionAssetBundleNameAsset(d);
if (EditorStrayFogUtility.assetBundleName.IsAllowSetBundleName(temp))
{
if (!_nodeMaping.ContainsKey(temp.guidHashCode))
{
_nodeMaping.Add(temp.guidHashCode, temp);
}
if (!_nodeMaping[temp.guidHashCode].mRefrenceMaping.ContainsKey(guidHashCode))
{
_nodeMaping[temp.guidHashCode].mRefrenceMaping.Add(guidHashCode, _nodeMaping[guidHashCode]);
}
if (!_nodeMaping[guidHashCode].mDependencyMaping.ContainsKey(temp.guidHashCode))
{
_nodeMaping[guidHashCode].mDependencyMaping.Add(temp.guidHashCode, _nodeMaping[temp.guidHashCode]);
}
_nodeMaping[temp.guidHashCode].BuildDependencyLink(_nodeMaping);
}
}
}
}
}
/// <summary>
/// 同步AssetBundleName
/// </summary>
/// <param name="_sync">同步节点</param>
void OnSyncAssetBundleName(EditorSelectionAssetBundleNameAsset _sync)
{
foreach (EditorSelectionAssetBundleNameAsset y in mSyncShrinkMergeMaping.Values)
{
y.SaveAssetBundleName(_sync);
}
}
/// <summary>
/// 保存AssetBundleName
/// </summary>
/// <param name="_sync">同步节点</param>
public void SaveAssetBundleName(EditorSelectionAssetBundleNameAsset _sync)
{
mAssetBundleName = "o_";
int hashCode = path.UniqueHashCode();
if (msrNamePrefix.ContainsKey(ext))
{
mAssetBundleName = msrNamePrefix[ext];
}
else if (name.EndsWith(msrXLuaTxtExt))
{//同一目录下的lua文件打为一个资源
mAssetBundleName = msrNamePrefix[msrXLuaTxtExt];
hashCode = directory.UniqueHashCode();
}
mAssetBundleName += hashCode;
bool isLockName = false;
AssetImporter importer = AssetImporter.GetAtPath(path);
if (importer is TextureImporter)
{
TextureImporter ti = (TextureImporter)importer;
if (!string.IsNullOrEmpty(ti.spritePackingTag))
{
//如果是精灵图集，一个图集一个资源，同一个图集的Sprite的Tag与目录一致
mAssetBundleName = "sp_" + ti.spritePackingTag.UniqueHashCode();
isLockName = true;
}
}
else if (msrLockNameExt.Contains(ext))
{
isLockName = true;
}
mAssetBundleName = Path.Combine(directory, mAssetBundleName).OnlyCNUSAndOtherReplaceU().TransPathSeparatorCharToUnityChar();
if (_sync != null && !isLockName)
{
if (EditorStrayFogUtility.assetBundleName.IsSceneRelateAsset(this))
{
mAssetBundleName = _sync.mAssetBundleName + "_necDep";
}
else if (_sync.ext == msrSceneExt && ext != msrSceneExt)
{
mAssetBundleName = _sync.mAssetBundleName + "_refDep";
}
else
{
mAssetBundleName = _sync.mAssetBundleName;
}
}
importer.SetAssetBundleNameAndVariant(mAssetBundleName, string.Empty);
EditorUtility.SetDirty(importer);
OnSyncAssetBundleName(_sync == null ? this : _sync);
}
/// <summary>
/// 收缩合并
/// </summary>
/// <returns>是否合并</returns>
public bool ShrinkMerge()
{
#region 收缩合并说明
/*
* 收缩合并
* 1.收缩合并目的是为了保证任何一个资源X都是被多个或零个资源引用，
* 将所有只有一个资源引用的资源收缩到引用的资源内，
* 以达到在使用任何资源时只进行最小的物理文件读取次数，加快载入内存的时间消耗。
*
* 收缩合并图解:
* 递归对所有只有唯一引用资源的资源都归入到引用资源中
* A G
* / \ |
* B C H 【收缩合并】D合并到B
* / \/ \ /
* D E F
*===================================
* A G
* / \ |
* [BD] C H 【收缩合并】BD、C合并到A，H合并到G
* \ / \ /
* E F
*===================================
* A[BDC] G[H] 【收缩合并】E合并到A
* | \ /
* E F
*===================================
*[BDCE] A G[H] 【收缩合并】没有需要收缩合并的项，收缩合并结束
* \ /
* F
*===================================
* 结果=> 【ABDCE】=资源A,【GH】=资源G,【F】= 资源F
* =====================
*/
#endregion
//仅被一个资源引用并且不是根节点的节点将被收缩
bool isShrinkMerge = (mRefrenceMaping.Count == 1) && !isRoot;
if (isShrinkMerge)
{
List <EditorSelectionAssetBundleNameAsset> lstRefs = new List <EditorSelectionAssetBundleNameAsset>(mRefrenceMaping.Values);
EditorSelectionAssetBundleNameAsset refObj = lstRefs[0];
#region 依赖项处理
foreach (EditorSelectionAssetBundleNameAsset d in mDependencyMaping.Values)
{
//所有依赖项的引用项去掉当前项，添加当前项的引用项
//去掉当前项
d.mRefrenceMaping.Remove(guidHashCode);
//添加当前项的引用项
if (!d.mRefrenceMaping.ContainsKey(refObj.guidHashCode))
{
d.mRefrenceMaping.Add(refObj.guidHashCode, refObj);
}
//当前依赖项添加到引用项的依赖项中
if (!refObj.mDependencyMaping.ContainsKey(d.guidHashCode))
{
refObj.mDependencyMaping.Add(d.guidHashCode, d);
}
}
#endregion
#region 步项处理
if (!refObj.mSyncShrinkMergeMaping.ContainsKey(guidHashCode))
{
refObj.mSyncShrinkMergeMaping.Add(guidHashCode, this);
}
foreach (EditorSelectionAssetBundleNameAsset y in mSyncShrinkMergeMaping.Values)
{
if (!refObj.mSyncShrinkMergeMaping.ContainsKey(y.guidHashCode))
{
refObj.mSyncShrinkMergeMaping.Add(y.guidHashCode, y);
}
}
#endregion
mRefrenceMaping = new Dictionary <int, EditorSelectionAssetBundleNameAsset>();
mDependencyMaping = new Dictionary <int, EditorSelectionAssetBundleNameAsset>();
mSyncShrinkMergeMaping = new Dictionary <int, EditorSelectionAssetBundleNameAsset>();
}
return(isShrinkMerge);
}