I did it, it costed me a week: SDKbox V2.3.2.0 for Visual Studio for cocos2d-x-3.13.1 : https://drive.google.com/file/d/0BwFbYJJmjqIkR1RraWJ0djE4eUE/view?usp=sharing
How you can play with it:
- Create Cocos empty cpp project;
- With console=cmd import into project sdkbox AdMob;
- Merge project with “sdkbox-sample-admob” example (google for it);
- Make sure you can successfully build and run it on the device - (test) advertising should appear;
- Then you can add unzipped
proj.visualstudio_sdkbox_for_cocos2d-x-3.13.1
(make its name shorter) folder into project.
https://drive.google.com/file/d/0BwFbYJJmjqIkaEZaOTNIRXZONDQ/view?usp=sharing - here is very short zip with key differences, with test AdMob id.
Upd: but my AdMob sample doesn’t work on my Android 2.3.6 devices…