Check these links out 

https://github.com/prsolucoes/JoystickCocos2D-X

http://discuss.cocos2d-x.org/t/show-a-virtual-joystick-over-screen-layer/3016

i take a look in this projects and they all are realy old, and not work well on new cocos2d version.

i decide make my own virtual joystick project. it’s half implemented currently.

tnks for reply.