Objective-C: Protocols

Posted by Stu on Stack Overflow See other posts from Stack Overflow or by Stu
Published on 2009-06-23T21:17:02Z Indexed on 2010/06/14 9:32 UTC
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objective-c

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protocols

I'd like an instance variable object to adopt a protocol.

@interface GameScene : Scene <AVAudioPlayerDelegate> {
@private
    Layer *content <CocosNodeOpacity>;
}

For example I'd like my Layer object to adopt the <CocosNodeOpacity> so that I can get the methods

-(GLubyte) opacity;    //and
-(void) setOpacity: (GLubyte) opacity;

for free. The syntax shown above is invalid. Is it possible to achieve this without creating a new implementation file and creating a custom object? Thanks.

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