Thread: loads of linker errors, and I only tried to clean up D:

Hey again...
I tried cleaning my code up abit, by adding some functions into other files (game.h and game.cpp) and now I get

Code:

1>main.obj : error LNK2005: "class HGE * hge" (?hge@@3PAVHGE@@A) already defined in game.obj
1>main.obj : error LNK2005: "class std::vector<class platform,class std::allocator<class platform> > & plats" (?plats@@3AAV?$vector@Vplatform@@V?$allocator@Vplatform@@@std@@@std@@A) already defined in game.obj
1>main.obj : error LNK2005: "class worldManager mngr" (?mngr@@3VworldManager@@A) already defined in game.obj

Now, I moved some functions from main.cpp, to game.h and game.cpp, and then I included game.h into main.cpp.
I'm not specially good at VS2008, and some google site, talked about VS 6.0 or something, I couldn't figure that out tho...
So is there something I can do with the compiler, or is it the code that can't be done like this?
Thanks in advance

You put variable definitions into the header file. Bad.

You can only put variable declarations into header files. So instead of

Code:

// game.h
HGE* hge;

you need

Code:

// game.h
extern HGE* hge;

// game.cpp
HGE* hge;

That's leaving aside the issue of having the global variable at all, of course.

It really depends. It looks like your game.h now contains globals, so each file that includes it will redefine them.

If you really need them to be global (global reference to a vector?!), are you sure that you have declared them extern and then defined in exactly one source files.

Well, the engine tutorials use loads of globals, when it has something to do with the engine... 'Cause there are so many engine functions that need them xP so if I put them in global, every function knows of it, right?

"already defined in game.obj"
Means that a variable or function (with the same name) is defined two or more times in source files.
How can this happen? The far most common error is to put non-inline functions and global variables inside headers. When they are included into each source file, you get duplicates, hence the error.

Every function can access globals...

Yeah, and the most functions need access to HGE* hge xP I moved my other variables down to game.cpp, they're still globals there, but is this still foolish?

There are good and bad uses of globals. You need to make sure they don't overcomplicate your design or create subtle bugs.