private void UpdateTextureAsset(SpriteMetaData[] metaDatas, Texture2D tempTexture)
{
if (tempTexture == null)
{
throw new System.Exception("TempTexture is null");
}
var path = default(string);
var importer = default(TextureImporter);
// Try and find the path of an existing
if (string.IsNullOrEmpty(Identifier) == false)
{
path = AssetDatabase.GUIDToAssetPath(Identifier);
}
// Create asset texture for the first time?
if (string.IsNullOrEmpty(path) == true)
{
path = AssetDatabase.GetAssetPath(this);
path = path.Substring(0, path.Length - ".asset".Length);
path = AssetDatabase.GenerateUniqueAssetPath(path + ".png");
importer = SpHelper.SaveTextureAsset(tempTexture, path, false);
importer.maxTextureSize = 8192;
importer.textureCompression = TextureImporterCompression.Uncompressed;
}
// Update existing asset texture?
else
{
importer = SpHelper.SaveTextureAsset(tempTexture, path, true);
}
// Update the atlas settings
importer.textureType = TextureImporterType.Sprite;
importer.spriteImportMode = SpriteImportMode.Multiple;
importer.spritesheet = metaDatas;
EditorUtility.SetDirty(importer);
// Apply new settings
SpHelper.ReimportAsset(path);
// Update settings
Texture = AssetDatabase.LoadMainAssetAtPath(path) as Texture2D;
Width = Texture.width;
Height = Texture.height;
Identifier = AssetDatabase.AssetPathToGUID(path);
// Find all packed sprites
Sprites.Clear();
foreach (var asset in AssetDatabase.LoadAllAssetsAtPath(path))
{
var sprite = asset as Sprite;
if (sprite != null)
{
Sprites.Add(sprite);
}
}
// Destroy temp texture
DestroyImmediate(tempTexture);
// Unmark dirty
Dirty = false;
Sources.ForEach(s => { s.Flag = SpFlag.None; s.Dirty = false; });
}