//这里的细节是得用直接依赖AssetDatabase.GetDependencies(thisAsset, false))，来计算重复率，不能使用全部依赖，
//比如a，b，c 3个asset，a包含b，b包含c。。
//a，b打成了A，B2个Bundle，那么c这个asset，的containingABs只能包含B，不能包含A。
private static void CollectUnmarkedAsset(string thisAsset, string bundle)
{
foreach (var asset in AssetDatabase.GetDependencies(thisAsset, false))
{
if (!asset.EndsWith(".cs") && !IsMarked(asset))
{
ABAssetinfos.AssetInfo res;
if (_allAssetInfos.TryGetValue(asset, out res))
{
res.containingABs.Add(bundle);
res.directContainingAssets.Add(thisAsset);
}
else
{
res = new ABAssetinfos.AssetInfo {
asset = asset, isMarked = false
};
res.containingABs.Add(bundle);
res.directContainingAssets.Add(thisAsset);
_allAssetInfos.Add(asset, res);
}
CollectUnmarkedAsset(asset, bundle);
}
}
}
public static void CheckDuplicate(string dupcsvfn)
{
_markedAsset2Bundle = new Dictionary <string, string>();
foreach (var bundle in AssetDatabase.GetAllAssetBundleNames())
{
foreach (var asset in AssetDatabase.GetAssetPathsFromAssetBundle(bundle))
{
_markedAsset2Bundle.Add(asset, bundle);
}
}
Debug.Log("marked asset count=" + _markedAsset2Bundle.Count);
_allAssetInfos = new Dictionary <string, ABAssetinfos.AssetInfo>();
foreach (var kv in _markedAsset2Bundle)
{
CollectUnmarkedAsset(kv.Key, kv.Value);
}
foreach (var kv in _markedAsset2Bundle)
{
var ai = new ABAssetinfos.AssetInfo {
asset = kv.Key, isMarked = true
};
ai.containingABs.Add(kv.Value);
_allAssetInfos.Add(kv.Key, ai);
}
Debug.Log("all asset count=" + _allAssetInfos.Count);
_assetInfos = new ABAssetinfos();
foreach (var kv in _allAssetInfos)
{
var ai = kv.Value;
ai.memSize = (int)CalcSize(kv.Key);
ai.containingABCount = ai.containingABs.Count;
ai.canSaveMemSize = ai.memSize * (ai.containingABCount - 1);
_assetInfos.Add(ai);
}
_assetInfos.Sort();
_assetInfos.Sum();
Resources.UnloadUnusedAssets();
Debug.Log(_assetInfos.sumStr);
_assetInfos.SaveToCsv(dupcsvfn);
Debug.Log("save to " + dupcsvfn);
}