private void PackFolder(string folder)
{
var textures = AssetDatabase.FindAssets("t:Texture2D", new string[] { folder })
.Select(guid => AssetDatabase.GUIDToAssetPath(guid))
.Select(path => new PackAssetSprite(path)).ToArray();
if (textures.Length == 0)
{
return;
}
for (int i = 0; i < textures.Length; i++)
{
var texPath = textures[i].assetPath;
var assetPath = texPath.Replace(folder + "/", "");
var assetDir = Path.GetDirectoryName(assetPath);
var assetName = Path.GetFileNameWithoutExtension(assetPath);
var assetLabel = string.IsNullOrEmpty(assetDir) ? assetName : assetDir + "/" + assetName;
textures[i].name = assetLabel;
textures[i].quality = PackUtil.CheckTextureCompressed(texPath) ? PackQuality.AlphaSplit : PackQuality.Full;
}
var atlasRaw = AtlasPacker.Pack(folder, textures, mSetting);
if (atlasRaw != null)
{
Selection.activeObject = atlasRaw;
}
}
private static void MapSprite2Atlas(string targetFolder, PackSetting setting, List <UnityEngine.UI.Sprite> sprites)
{
var spritePaths = new List <string>();
foreach (var sprite in sprites)
{
if (sprite != null && sprite.type == UnityEngine.UI.Sprite.Type.Sprite)
{
var path = AssetDatabase.GetAssetPath(sprite.sprite);
if (!string.IsNullOrEmpty(path) && !spritePaths.Contains(path))
{
spritePaths.Add(path);
}
}
}
var pathSpriteMap = new Dictionary <string, UnityEngine.UI.Sprite>();
var spriteGroups = spritePaths.GroupBy(path =>
{
var importer = AssetImporter.GetAtPath(path) as TextureImporter;
return(importer.spritePackingTag);
});
foreach (var group in spriteGroups)
{
var groupPaths = group.ToArray();
var groupNames = Util.MapSpritePath2SpriteNameInAtlas(groupPaths);
var groupSprites = new PackAssetSprite[groupPaths.Length];
for (int i = 0; i < groupPaths.Length; i++)
{
groupSprites[i] = new PackAssetSprite(groupPaths[i])
{
name = groupNames[i]
};
groupSprites[i].quality = PackUtil.CheckTextureCompressed(groupPaths[i]) ? PackQuality.AlphaSplit : PackQuality.Full;
}
var groupTag = string.IsNullOrEmpty(group.Key) ? EmptyTagName : group.Key;
var groupFolder = Path.Combine(targetFolder, groupTag);
if (!Directory.Exists(groupFolder))
{
Directory.CreateDirectory(groupFolder);
}
var atlasRaw = AtlasPacker.Pack(groupFolder, groupSprites, setting);
for (int i = 0; i < groupPaths.Length; i++)
{
pathSpriteMap[groupPaths[i]] = new UnityEngine.UI.Sprite(atlasRaw, groupNames[i]);
}
}
;
for (int i = 0; i < sprites.Count; i++)
{
var sprite = sprites[i];
if (sprite != null && sprite.type == UnityEngine.UI.Sprite.Type.Sprite)
{
var path = AssetDatabase.GetAssetPath(sprite.sprite);
if (!string.IsNullOrEmpty(path))
{
sprites[i] = pathSpriteMap[path];
}
}
}
}
