private static void CreateAtlasRaw()
{
var path = AssetDatabase.GetAssetPath(Selection.activeObject);
path = string.IsNullOrEmpty(path) ? "Assets" : path;
if (File.Exists(path))
{
path = Path.GetDirectoryName(path);
}
var atlas = CreateInstance <AtlasRaw>();
atlas.bins = new BinRaw[0];
var setting = new PackSetting();
atlas.maxSize = setting.maxAtlasSize;
atlas.padding = setting.padding;
atlas.isPOT = setting.isPOT;
atlas.forceSquare = setting.forceSquare;
var assetPath = Path.Combine(path, PackConst.DefaultAtlasAssetName);
assetPath = AssetDatabase.GenerateUniqueAssetPath(assetPath);
atlas.id = PackUtil.GenerateAtlasId();
AssetDatabase.CreateAsset(atlas, assetPath);
Selection.activeObject = AssetDatabase.LoadAssetAtPath <AtlasRaw>(assetPath);
}
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);
}
