private static List <SpRect> CompileSources(List <SpSource> sources)
{
var rects = new List <SpRect>();
for (var i = sources.Count - 1; i >= 0; i--)
{
var source = sources[i];
var sourceTexture = source.Texture;
if (sourceTexture != null)
{
var sourcePath = source.Path;
var sourcePixels = default(SpPixels);
var sourceSprites = source.Sprites;
var sourceImporter = SpHelper.GetAssetImporter <TextureImporter>(sourcePath);
if (sourceImporter != null)
{
// Make the texture temporarily readable, or directly read pixels
if (sourceImporter.isReadable == false)
{
sourceImporter.isReadable = true; SpHelper.ReimportAsset(sourcePath);
{
sourcePixels = new SpPixels(sourceTexture);
}
sourceImporter.isReadable = false; SpHelper.ReimportAsset(sourcePath);
}
else
{
sourcePixels = new SpPixels(sourceTexture);
}
// Add sprites or whole texture
if (sourceSprites.Count > 0)
{
for (var j = 0; j < sourceSprites.Count; j++)
{
var sourceSprite = sourceSprites[j];
CompileRect(rects, source, sourcePixels.GetSubset(sourceSprite.rect), sourceSprite.name, sourceSprite);
}
}
else
{
CompileRect(rects, source, sourcePixels, sourceTexture.name);
}
continue;
}
}
sources.RemoveAt(i);
}
rects.Sort((a, b) => Mathf.Max(b.W, b.H) - Mathf.Max(a.W, a.H));
return(rects);
}
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; });
}