cocos2d is one of the best gaming framework I’ve seen, but it doesn’t use UIKit.
When Apple introduced UIGestureRecognizers they unified how touch interaction should work.
Is there a way we can add UIGestureRecognizers to cocos2d architecture, without modyfing cocos2d source?
Some time ago I’ve seen xemus shared his implementation which is pretty cool, but for me it had a a few things that I do not like:
- It requires manual modifying cocos2d, and I prefer not to change libraries I’m using so that I can upgrade anytime to newer versions.
- It uses some wrapper class that I had to be aware of when using gestures, instead of using standard UIGestureRecognizers.
Since I use gesture recognizers in all my cocos2d apps, I’ve rolled my own implementation based on xemus code but I used more dynamic approach.
This is how you add gesture recognizers support for any cocos2d project:
- Download my category CCNode%2BSFGestureRecognizers
- import “CCNode%2BSFGestureRecognizers.h” preferably in your project **Prefix.pch **
- Make sure you are using** llvm compiler. By now you should only be using **LLVM.
- Now any node can use gesture recognizers, use standard UIGestureRecognizers, there is no need for special treatment when working with cocos2d.
What you get extra:
- Each UIGestureRecognizer that is assigned to node have now **node **property so that you can easily use it in your handling code.
- Each node has now isTouchEnabled (doesn’tbreak CCLayer which already had this property), touchRect properties that you can use to define touchable region in your local space.
- If a scene stops running gestures will stop firing as it should ![:)] .
- The code works with both 2.0 and 1.1 cocos2d versions.