/// <summary>
/// 压缩UIAtlas
/// </summary>
/// <param name="uiatlasobj"></param>
/// <returns></returns>
public static ShrinkResult ShrinkAtlas(Object uiatlasobj)
{
AtlasProperty originalAtlasProp = null;
ShrinkResult ret = prepareShrinkAtlas(uiatlasobj, ref originalAtlasProp);
if (ret != ShrinkResult.Success)
{
return(ret);
}
UIAtlas uiatlas = ((GameObject)uiatlasobj).GetComponent <UIAtlas>();
BetterList <string> sl = uiatlas.GetListOfSprites();
//备份原始尺寸
originalAtlasProp = GetAtlasProperty(uiatlas, true);
float times = 2f;
uiatlas.scale /= times;
foreach (string sn in sl)
{
UISpriteData sd = uiatlas.GetSprite(sn);
sd.x /= (int)times;
sd.y /= (int)times;
sd.width /= (int)times;
sd.height /= (int)times;
sd.borderBottom /= (int)times;
sd.borderLeft /= (int)times;
sd.borderRight /= (int)times;
sd.borderTop /= (int)times;
sd.paddingTop /= (int)times;
sd.paddingBottom /= (int)times;
sd.paddingLeft /= (int)times;
sd.paddingRight /= (int)times;
}
uiatlas.pixelSize *= times;
uiatlas.MarkAsDirty();
AtlasProperty currentAtlasProp = GetAtlasProperty(uiatlas);
SaveAtlasData(uiatlas, originalAtlasProp, currentAtlasProp);
return(ShrinkResult.Success);
}
/// <summary>
/// 为压缩uiatlas做准备，包括压缩贴图及备份原始数据
/// </summary>
/// <param name="uiatlasobj"></param>
/// <param name="originalAtlasProp">用于存储uiatlas的原始数据</param>
/// <returns></returns>
private static ShrinkResult prepareShrinkAtlas(Object uiatlasobj, ref AtlasProperty originalAtlasProp)
{
UIAtlas uiatlas = ((GameObject)uiatlasobj).GetComponent <UIAtlas>();
string assetPath = AssetDatabase.GetAssetPath(uiatlas.gameObject);
if (AtlasAlreadyShrinked(assetPath))
{//已经处理过
return(ShrinkResult.Success);
}
if (null == uiatlas.spriteMaterial || null == uiatlas.spriteList)
{
return(ShrinkResult.Failure);
}
BetterList <string> sl = uiatlas.GetListOfSprites();
if (sl == null)
{
return(ShrinkResult.Failure);
}
//先把纹理都缩了
Object[] dependObjs = new Object[] { uiatlas.spriteMaterial.mainTexture }; //EditorUtility.CollectDependencies(new Object[] { uiatlas.gameObject }); //获取依赖的资源
List <Texture2D> textureList = new List <Texture2D>();
for (int i = 0; i < dependObjs.Length; i++)
{//搜集依赖的纹理资源
if (dependObjs[i] is Texture2D)
{
textureList.Add(dependObjs[i] as Texture2D);
}
}
for (int index = 0; index < textureList.Count; ++index)
{
ShrinkResult sret = ShrinkTexture(textureList[index]);
if (sret != ShrinkResult.Success)
{
RecoverUIAtlasFromMeta(uiatlasobj);
return(ShrinkResult.Failure);
}
}
return(ShrinkResult.Success);
}