如何切换CCSprite的图像 [英] How to switch the image of a CCSprite

问题描述

我有一个CCSprite，使用 [CCSprite spriteWithSpriteFrameName：@plist_file_key_here.png] 初始化。我已经添加了所有的精灵从我的plist文件到CCSpriteFrameCache。我已经尝试设置纹理像这样：

I have a CCSprite that is initialized using [CCSprite spriteWithSpriteFrameName:@"plist_file_key_here.png"]. I have already added all the sprites from my plist file to CCSpriteFrameCache. I have tried setting the texture like this:

CCSpriteFrame * frame = [[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName:name];
NSAssert(frame.texture!=nil, @"frame.texture can't equal nil"); //this works fine
[sprite setTexture:frame.texture]; //doesn't cause a white square to appear, just doesn't switch the image.

正如我在我的意见中说的，这不工作。我认为它与使用 [CCSprite spriteWithFile：] 和 [CCSprite spriteWithSpriteFrameName：] 之间的区别有关，这依赖于从纹理地图集加载到CCSpriteFrameCache的精灵帧。当使用从纹理图集加载的sprite时，每个sprite的纹理等于sprite sheet的纹理。有什么办法围绕这个或者我必须删除和重新创建精灵？如果这是我唯一的选择，有没有办法从其父级删除一个ccnode但保留其子级？

As I said in my comments, this doesn't work. I think it has something to do with the difference between using [CCSprite spriteWithFile:] and [CCSprite spriteWithSpriteFrameName:], which relies on sprite frames loaded into the CCSpriteFrameCache from a texture atlas. When using sprites loaded from a texture atlas, the texture of each sprite is equal to the texture of the sprite sheet. Is there any way around this or do I have to remove and recreate the sprite? If that is my only option, is there a way of removing a ccnode from its parent but preserving its children?

推荐答案

API参考资料救援！

当你有一个纹理与精灵帧，你不想改变纹理，但sprite帧精灵使用。你可以这样做：

When you have a texture with sprite frame, you don't want to change the texture but the sprite frame the sprite uses. That you can do as follows:

CCSpriteFrameCache* cache = [CCSpriteFrameCache sharedSpriteFrameCache];
CCSpriteFrame* frame = [cache spriteFrameByName:name];
sprite.displayFrame = frame;

它需要是：

sprite.spriteFrame = frame;

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