/// <summary>
/// 预先加载atlas
/// </summary>
/// <param name="atlasNames"></param>
public static void PreLoad(string[] atlasNames)
{
AtlasCollection ac = null;
for (int i = 0; i < atlasNames.Length; ++i)
{
ac = GetAtlas(atlasNames[i]);
}
ac = null;
}
public static Sprite GetSprite(string atlasName, string spriteName)
{
Sprite ret = null;
AtlasCollection atlas = GetAtlas(atlasName);
if (atlas != null)
{
ret = atlas.Find(spriteName);
}
atlas = null;
return(ret);
}
static AtlasCollection createAsset(string atlasName)
{
string prefabPath = AtlasCollectionsDir + "/" + atlasName + ".asset";
prefabPath = prefabPath.Substring(prefabPath.IndexOf("Assets"));
AtlasCollection scriptableObj = ScriptableObject.CreateInstance <AtlasCollection>();
UnityEditor.AssetDatabase.CreateAsset(scriptableObj, prefabPath);
// UnityEditor.AssetDatabase.SaveAssets();
// UnityEditor.AssetDatabase.Refresh();
return(AssetDatabase.LoadAssetAtPath <AtlasCollection>(prefabPath));
}
/// <summary>
/// （慎用）保留atlas的资源引用，使得Resource.UnloadUnusedAssets不能将其卸载
/// </summary>
/// <param name="atlasNames"></param>
public static void Cache(string[] atlasNames)
{
for (int i = 0; i < atlasNames.Length; ++i)
{
if (!m_cachedAtlas.ContainsKey(atlasNames[i]))
{
AtlasCollection ac = GetAtlas(atlasNames[i]);
if (ac != null)
{
m_cachedAtlas.Add(atlasNames[i], ac);
ac = null;
}
}
}
}
public static void ExportAtlasPfb()
{
if (!Directory.Exists(SpritesDir))
{
EditorUtility.DisplayDialog("提示", "图集图片所在目录不存在", "知道了");
return;
}
EditorUtility.DisplayProgressBar("", "删除之前的AtlasCollection文件", 0f);
Dictionary <string, AtlasCollection> pres = new Dictionary <string, AtlasCollection>();
if (Directory.Exists(AtlasCollectionsDir))
{
Directory.Delete(AtlasCollectionsDir, true);
AssetDatabase.SaveAssets();
}
Directory.CreateDirectory(AtlasCollectionsDir);
EditorUtility.DisplayProgressBar("", "Rebuild图集", 0.2f);
//Rebuild
Packer.RebuildAtlasCacheIfNeeded(EditorUserBuildSettings.activeBuildTarget, false);
EditorUtility.DisplayProgressBar("", "重新生成图集的AtlasCollection文件", 0.5f);
//收集数据
#region c#方法获得文件
/*
* DirectoryInfo rootDirInfo = new DirectoryInfo(atlasDir);
* foreach (FileInfo pngFile in rootDirInfo.GetFiles(".png", SearchOption.AllDirectories))
* {
* string allPath = pngFile.FullName;
* string assetPath = allPath.Substring(allPath.IndexOf("Assets"));
*/
#endregion
string[] atlasSpritePath = new string[] { SpritesDir.Substring(SpritesDir.IndexOf("Assets")) };
string[] result = AssetDatabase.FindAssets(format, atlasSpritePath);
for (int i = 0; i < result.Length; ++i)
{
string assetPath = AssetDatabase.GUIDToAssetPath(result[i]);
Sprite sprite = AssetDatabase.LoadAssetAtPath <Sprite>(assetPath);
if (sprite == null || !sprite.packed)
{
continue;
}
Texture2D tmp;
string atlasName;
Packer.GetAtlasDataForSprite(sprite, out atlasName, out tmp);
//没有相应的图集问价AtlasCollection，则新建一个
if (!pres.ContainsKey(atlasName))
{
AtlasCollection atl = createAsset(atlasName);
pres.Add(atlasName, atl);
}
pres[atlasName].sprites.Add(sprite);
}
EditorUtility.DisplayProgressBar("", "保存资源", 0.8f);
//保存
foreach (AtlasCollection obj in pres.Values)
{
EditorUtility.SetDirty(obj);
}
AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
EditorUtility.ClearProgressBar();
}
