I want to make a helicopter which is flying in a Circle around a rock, and a FPS-Camera inside this helicopter.
This works so far, but the problem is that the FPS-Camera rotates itself.
There is a point at the rock, which turns itself. The Camera and the Helicopter are childs from this point.
I hope you guys understand what I mean, because I don't want to confrontate you with my yet untidy code

Thx, Mynithix
By the way, basic C++ problem because I'm a noob.
I have a main.cpp with the game.h(eader). In the header there is a void menu(){} but I've got a second file menu.cpp where void menu(){isFilled();} So, what can I do to use the menu.cpp?