“Nĭ Hăo” and thanks for sharing it. It is great to know and learn more about China and Cocos development. Thanks.
Actually, 你 is third tone, except when followed by another 3rd tone. Then you pronounce the 你 as a second tone! ni2hao3
Yes, that s right
You are good at Chinese 
Looks super fun, I hope to go out there some day and meet the cocos2d-x team to !!!