void AddOrUpdateAtlas(string name)
{
GameObject newPrefabs = new GameObject(name);
UIAtlas atlas = newPrefabs.AddComponent <UIAtlas>();
foreach (var sp in sprites.Values)
{
atlas.AddSprite(sp.Sprite);
}
GameObject go = PrefabUtility.ReplacePrefab(newPrefabs, uiAtlas, ReplacePrefabOptions.Default);
uiAtlas = go.GetComponent <UIAtlas>();
DestroyImmediate(newPrefabs);
}
private static void PackDir(DirectoryInfo dirInfo, string atlasName)
{
if (atlasName != "")
{
GameObject go = new GameObject(atlasName);
UIAtlas uiAtlas = go.AddComponent <UIAtlas>();
uiAtlas.atlasName = atlasName;
foreach (FileInfo pngFile in dirInfo.GetFiles("*.png", SearchOption.TopDirectoryOnly))
{
string allPath = pngFile.FullName;
string assetPath = allPath.Substring(allPath.IndexOf("Assets"));
Sprite sprite = AssetDatabase.LoadAssetAtPath <Sprite>(assetPath);
if (null == sprite)
{
Debug.LogError("PackAtlas Error. Cannot load sprite: " + assetPath);
continue;
}
uiAtlas.AddSprite(sprite);
}
string atlasPath = UIAtlasUtility.atlasRootPath + atlasName + ".prefab";
PrefabUtility.CreatePrefab("Assets/" + atlasPath, go);
GameObject.DestroyImmediate(go);
}
foreach (DirectoryInfo subDirInfo in dirInfo.GetDirectories())
{
string subAtlasName = atlasName + UIAtlasUtility.altasNameSeparator + subDirInfo.Name;
if (atlasName == "")
{
subAtlasName = subDirInfo.Name;
}
PackDir(subDirInfo, subAtlasName);
}
}