tools : JS Bindings generator. res : Your game resource folder for images, sounds, etc. src : The source code folder to place your games js files. Previous Previous post: 14-Year-Old Prodigy Programmer Dreams In Code. Next Next post: How to download pc games by Android in hindi 2017.Would it be ok if I download the "Cocos2d-JS (v3.0RC1)" to follow along with these tutorials? Learning Cocos2d-JS Game Development eBooks eLearning. Posted by ksveta6 at Feb. 20, 2015.Cocos2d-x is the C port of the most popular open source 2D framework in the world.