Cocos2D學習筆記－CCSprite記進相簿中

需求有兩個

1. 將CCSprite存成檔案
2. 存到相簿中

查了下資料，做法如下：

CCTexture2D *tx = [sprite1 texture]; //這邊是因為sprite1一直在更新，所以先copy

CCSprite *sprite = [CCSprite spriteWithTexture:tx];

sprite.anchorPoint  = CGPointZero;   //這個一定要有，尤其有更改過時


//先做成texture
CCRenderTexture *renderer = [CCRenderTexture renderTextureWithWidth:sprite.contentSize.width height:sprite.contentSize.height];

            

[renderer begin];

[sprite visit];

[renderer end];

UIImage *newImage = [renderer getUIImage];

//做成UIImage，就可以直接用UIImageWriteToSavedPhotosAlbum存檔

UIImageWriteToSavedPhotosAlbum(newImage,nil,nil,nil);

參考網址：
UIImage from CCSprite (yes I've already searched)
UIImage轉CCTexture2D UIImage轉CCSprite
［IPHONE］將照片儲存到IOS照片相簿(Photo Album)中