|
public static rebuildAtlas ( |
||
| textures | ||
| filename | string | |
| generateSdAtlas | bool | |
| return | Rect[] | |
public static void refreshSourceImages(this SKSpriteSheet sheet)
{
// set a flag while we import the PSD to avoid our AssetPostprocessor from getting an endless loop of death
isCurrentlyRefreshingSourceImages = true;
try
{
var textureInfoList = new List <SKTextureInfo>();
var files = Directory.GetFiles(sheet.imageSourceFolder).Where(f => !f.EndsWith(".meta")).ToArray();
var textures = new Dictionary <string, Texture2D>(files.Length);
var texturesNotToDestroy = new List <string>();
var containedImages = new List <string>();
float progress = 1f;
foreach (var f in files)
{
EditorUtility.DisplayProgressBar("Creating Sprite Atlases..", "processing image at path: " + f, progress++ / files.Length);
var path = Path.Combine(sheet.imageSourceFolder, Path.GetFileName(f));
Texture2D tex = null;
if (Path.GetExtension(path) == ".png")
{
// we load directly from disk so that the textures are guaranteed readable
tex = new Texture2D(0, 0);
tex.LoadImage(File.ReadAllBytes(f));
}
else if (Path.GetExtension(path).ToLower() == ".psd" || Path.GetExtension(path) == ".gif")
{
var texImporter = TextureImporter.GetAtPath(path) as TextureImporter;
texImporter.isReadable = true;
AssetDatabase.ImportAsset(path);
tex = AssetDatabase.LoadAssetAtPath(path, typeof(Texture2D)) as Texture2D;
if (tex != null)
{
texturesNotToDestroy.Add(tex.name);
}
}
if (tex != null)
{
textures.Add(Path.GetFileName(f), tex);
containedImages.Add(Path.GetFileName(f));
}
}
sheet.containedImages = containedImages.ToArray();
// pack all the textures and make a lookup dictionary
var textureArray = textures.Select(x => x.Value).ToArray();
var rects = SKTextureUtil.rebuildAtlas(textureArray, sheet.name.Replace("_sheet", string.Empty) + "_atlas", sheet.hasHdAtlas);
var texToRect = new Dictionary <string, Rect>(textures.Count);
for (var i = 0; i < textureArray.Length; i++)
{
var key = textures.Where(y => y.Value == textureArray[i]).Select(x => x.Key).First();
texToRect[key] = rects[i];
}
// create our textureInfos
foreach (var item in texToRect)
{
var tex = textures[item.Key];
var info = new SKTextureInfo();
info.file = item.Key;
info.uvRect = item.Value;
info.size = new Vector2(tex.width, tex.height);
textureInfoList.Add(info);
}
// clean up textures
foreach (var tex in textures)
{
// only destroy textures that we loaded from pngs
if (!texturesNotToDestroy.Contains(tex.Value.name))
{
GameObject.DestroyImmediate(tex.Value, true);
}
}
textures.Clear();
// not sure why getting the asset path triggers a save but it does for some reason
AssetDatabase.GetAssetPath(sheet);
sheet.imageTextureInfo = textureInfoList.ToArray();
//AssetDatabase.SaveAssets();
AssetDatabase.Refresh();
EditorUtility.SetDirty(sheet);
}
catch (System.Exception e)
{
Debug.LogError("Something went wrong creating the atlas: " + e);
}
finally
{
EditorUtility.ClearProgressBar();
isCurrentlyRefreshingSourceImages = false;
}
}