static void RefreshAtlas(AtlasMonitor monitor)
{
if (!dirtyAtlas.Contains(monitor))
{
dirtyAtlas.Enqueue(monitor);
}
EditorApplication.update -= UpdateAtlas;
EditorApplication.update += UpdateAtlas;
}
static void UpdateAtlas()
{
if (dirtyAtlas.Count == 0)
{
EditorApplication.update -= UpdateAtlas;
return;
}
AtlasMonitor monitor = dirtyAtlas.Dequeue();
if (monitor != null && monitor.data != null)
{
Texture2D[] textures = AssetDatabase.FindAssets("t:Texture2D", new string[] { monitor.path })
.Select(guid => AssetDatabase.GUIDToAssetPath(guid))
.Select(path =>
{
Texture2D t2d = AssetDatabase.LoadAssetAtPath <Texture2D>(path);
var t = new Texture2D(t2d.width, t2d.height, t2d.format, false);
Graphics.CopyTexture(t2d, t);
t.name = t2d.name;
return(t);
}).ToArray();
Texture2D atlas = new Texture2D(2, 2, TextureFormat.ARGB32, false);
Rect[] rects = atlas.PackTextures(textures, 0);
monitor.data.myImageDatas.Clear();
for (int i = 0; i < textures.Length; i++)
{
ImageData data = new ImageData();
data.name = textures[i].name;
data.size = new Vector2(textures[i].width, textures[i].height);
data.uv = rects[i];
monitor.data.myImageDatas.Add(data);
}
monitor.data.OnAfterDeserialize();
string atlasPath = AssetDatabase.GetAssetPath(monitor.data);
atlasPath = Path.ChangeExtension(atlasPath, ".png");
if (File.Exists(atlasPath))
{
File.Delete(atlasPath);
}
File.WriteAllBytes(atlasPath, atlas.EncodeToPNG());
AssetDatabase.Refresh();
monitor.data.myAtlas = AssetDatabase.LoadAssetAtPath <Texture2D>(atlasPath);
monitor.data.myAtlasWidth = monitor.data.myAtlas.width;
monitor.data.myAtlasHeight = monitor.data.myAtlas.height;
EditorUtility.SetDirty(monitor.data);
AssetDatabase.SaveAssets();
Debug.Log("更新图集：" + monitor.data.name);
}
}
