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]; } } } }