this example was wrote with Cocos2D by Ray first,here the Ray`s blog http://www.raywenderlich.com/4756/how-to-make-a-catapult-shooting-game-with-cocos2d-and-box2d-part-1
I had ported this example to Cocos2D-X and ran successfully on iphone and android!( ,I have uploaded code and hope it`s helpful.
ps:the source code has some modifications，based on v0.9.1！
does it look like Angry Birds?
imitatedgame.rar.zip (694.4 KB)
1.png (118.6 KB)
2.png (102.3 KB)