cocos2d Box2d contact listener
Should I only ever have one box2d contact listener in a project?

Let's say I have a bird and a rock.  Would they use the same listener or have their own?

Thanks
cocos2d Box2d contact listener
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Should I only ever have one box2d contact listener in a project?

Let's say I have a bird and a rock.  Would they use the same listener or have their own?

Thanks