//パッキングする
static void PackSub(DicingTextures target, bool rebuild)
{
AssetBuildTimeStamp timeStamp = null;
string targetName = target.name;
if (!RebuildCheckTimeStamp(target, rebuild, out timeStamp))
{
//メモリリーク対策(Unity2017.4では動作を確認。5.5ではリークが残る)
timeStamp = null;
System.GC.Collect();
EditorUtility.UnloadUnusedAssetsImmediate(true);
Debug.Log(string.Format(targetName + " is not changed"));
return;
}
EditorUtility.SetDirty(target);
//使用テクスチャをロード
Profiler.BeginSample("LoadTextures");
List <TextureInfo> textures = LoadTextures(target);
Profiler.EndSample();
//アトラス情報を作成
Profiler.BeginSample("MakeAtlas");
List <Atlas> atlasList = MakeAtlas(target, textures, target.InputDir);
Profiler.EndSample();
//アトラス画像とデータを出力して、ターゲットをリビルド
Profiler.BeginSample("RebuildTarget");
RebuildTarget(timeStamp, target, atlasList);
Profiler.EndSample();
//どれくらいサイズが減ったか、計測して出力
OutputPerformace(targetName, textures, atlasList);
}
public AssetBuildTimeStamp MakeBuildTimeStampAllChildren <T>() where T : UnityEngine.Object
{
AssetBuildTimeStamp timeStamp = new AssetBuildTimeStamp();
List <MainAssetInfo> list = GetAllChildren <T>();
List <Object> assets = new List <Object>();
list.ForEach(x => assets.Add(x.Asset));
timeStamp.MakeList(assets);
return(timeStamp);
}
//リビルド
public void Build(AssetBuildTimeStamp buildTimeStamp, List <Texture2D> outputTextures, List <DicingTextureData> textureDataList)
{
this.buildTimeStamp = buildTimeStamp;
this.textureDataList = textureDataList;
this.atlasTextures = outputTextures;
if (buildTimeStamp == null)
{
Debug.LogError("buildTimeStamp is null");
}
else if (buildTimeStamp.InfoList.Count == 0)
{
Debug.LogError("buildTimeStamp is zero");
}
EditorUtility.SetDirty(this);
}
//再ビルドが必要かタイムスタンプをチェック
static bool RebuildCheckTimeStamp(DicingTextures target, bool rebuild, out AssetBuildTimeStamp timeStamp)
{
MainAssetInfo dir = new MainAssetInfo(target.InputDir);
timeStamp = dir.MakeBuildTimeStampAllChildren <Texture2D>();
if (rebuild)
{
return(true);
}
else
{
//タイムスタンプが一致するなら、再ビルド必要ない
return(!target.BuildTimeStamp.Compare(timeStamp));
}
}
public bool Compare(AssetBuildTimeStamp target)
{
if (target.infoList.Count != infoList.Count)
{
return(false);
}
for (int i = 0; i < this.infoList.Count; i++)
{
if (!this.infoList[i].Compare(target.infoList[i]))
{
return(false);
}
}
return(true);
}
//アトラス画像とデータを出力して、インポートするターゲットをリビルド
static void RebuildTarget(AssetBuildTimeStamp buildTimeStamp, DicingTextures target, List <Atlas> atlasList)
{
List <string> outputTexturePathList = new List <string>();
List <DicingTextureData> textureDataList = new List <DicingTextureData>();
//アトラス画像をファイルとして出力
string dir = AssetDatabase.GetAssetPath(target.OutputDir);
int count = 0;
foreach (var atlas in atlasList)
{
++count;
Texture2D texture = atlas.MakeAtlasTexture();
string path = FilePathUtil.Combine(dir, atlas.Name + ".png");
outputTexturePathList.Add(path);
atlas.Write(path, texture);
Object.DestroyImmediate(texture);
DisplayProgressBar(target, 0.7f + 0.2f * count / atlasList.Count, "Make AtlasTexture");
//元テクスチャを再現するための、頂点データやアトラス画像に対するUV値を作成
textureDataList.AddRange(atlas.MakeImportData());
DisplayProgressBar(target, 0.7f + 0.29f * count / atlasList.Count, "Make AtlasTexture");
}
textureDataList.Sort((a, b) => string.Compare(a.Name, b.Name));
//新しいテクスチャをロード
List <Texture2D> newTextureList = new List <Texture2D>();
foreach (var path in outputTexturePathList)
{
Texture2D texture = AssetDatabase.LoadAssetAtPath <Texture2D>(path);
if (texture == null)
{
AssetDatabase.ImportAsset(path);
texture = AssetDatabase.LoadAssetAtPath <Texture2D>(path);
}
newTextureList.Add(texture);
}
//登録済みのテクスチャのうち、使わなくなったものを削除
List <Texture2D> removeTextureList = new List <Texture2D>();
foreach (var texture in target.AtlasTextures)
{
if (!newTextureList.Contains(texture))
{
removeTextureList.Add(texture);
}
}
//テクスチャを設定
target.Build(buildTimeStamp, newTextureList, textureDataList);
//インポート設定を上書き
foreach (var path in outputTexturePathList)
{
AssetDatabase.ImportAsset(path);
OverrideAtlasTextureImportSetting(path, target);
}
//使わなくなったものを削除
foreach (var texture in removeTextureList)
{
Debug.Log("Remove " + texture.name);
AssetDatabase.DeleteAsset(AssetDatabase.GetAssetPath(texture));
}
}