public static string[] Export(AtlasRaw atlas, SpriteRaw[] sprites, string folder)
{
var exportSprites = new string[sprites.Length];
var atlasSprites = sprites.Select(i => PackAtlasSprite.ParseSprite(atlas.bins[i.bin], i)).ToArray();
PackUtil.LoadAtlasTextures(atlasSprites);
for (int i = 0; i < atlasSprites.Length; i++)
{
var sprite = atlasSprites[i];
var rect = sprite.rect;
var texture = PackUtil.CreateBlankTexture((int)rect.width, (int)rect.height, sprite.transparency ? TextureFormat.RGBA32 : TextureFormat.RGB24);
texture.SetPixels(sprite.Read());
var bytes = sprite.transparency ? texture.EncodeToPNG() : texture.EncodeToJPG();
var path = Path.Combine(folder, sprite.name) + (sprite.transparency ? ".png" : ".jpg");
var dir = Path.GetDirectoryName(path);
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
File.WriteAllBytes(path, bytes);
exportSprites[i] = path;
if (EditorUtility.DisplayCancelableProgressBar("", "export: " + sprite.name, (float)i / sprites.Length))
{
break;
}
}
EditorUtility.ClearProgressBar();
AssetDatabase.Refresh(ImportAssetOptions.ForceSynchronousImport);
return(exportSprites);
}
public AtlasRaw GenerateAtlas()
{
if (sprites.Length > PackConst.MaxNumberOfSpriteInAtlas)
{
Debug.LogError(string.Format("Sprites in excess of {0}.", PackConst.MaxNumberOfSpriteInAtlas));
return(null);
}
for (int i = 0; i < sprites.Length; i++)
{
var texName = sprites[i].name;
var texRect = sprites[i].rect;
if (texRect.width > setting.maxAtlasSize ||
texRect.height > setting.maxAtlasSize)
{
Debug.LogError(string.Format("Texture size should be lower than {0}: {1}.", setting.maxAtlasSize, texName));
return(null);
}
}
var atlasSprites = sprites.Where(i => i is PackAtlasSprite).Select(i => i as PackAtlasSprite).ToArray();
PackUtil.LoadAtlasTextures(atlasSprites);
var groups = sprites.GroupBy(texture => new { texture.quality, texture.transparency })
.OrderBy(group => group.Key.quality)
.ThenBy(group => group.Key.transparency);
var bins = groups.Select(group =>
{
var groupQuality = group.Key.quality;
var groupTransparency = group.Key.transparency;
var groupSprites = group.ToArray();
var groupProcessor = PackProcessor.Fetch(groupQuality);
groupProcessor.Setup(setting, groupSprites, groupTransparency);
var groupBins = groupProcessor.Execute();
foreach (var groupBin in groupBins)
{
groupBin.quality = (int)groupQuality;
}
return(groupBins);
}).SelectMany(i => i).ToArray();
for (int i = 0; i < bins.Length; i++)
{
foreach (var sprite in bins[i].sprites)
{
sprite.bin = i;
}
}
var atlasRaw = AssetDatabase.LoadAssetAtPath <AtlasRaw>(atlasPath);
var atlasExist = atlasRaw != null;
if (atlasExist)
{
RemoveAtlasTextures(atlasRaw);
}
else
{
atlasRaw = ScriptableObject.CreateInstance <AtlasRaw>();
}
atlasRaw.hideFlags = HideFlags.DontUnloadUnusedAsset;
atlasRaw.bins = bins;
atlasRaw.maxSize = setting.maxAtlasSize;
atlasRaw.padding = setting.padding;
atlasRaw.isPOT = setting.isPOT;
atlasRaw.forceSquare = setting.forceSquare;
if (atlasRaw.id == 0)
{
atlasRaw.id = PackUtil.GenerateAtlasId();
}
CreateAtlasTextures(atlasRaw);
if (atlasExist)
{
EditorUtility.SetDirty(atlasRaw);
AssetDatabase.SaveAssets();
}
else
{
AssetDatabase.CreateAsset(atlasRaw, atlasPath);
}
return(atlasRaw);
}
