Hello! I'm learning C++, and I'm trying to make a game in DirectX, so I hope this is the right forum!

where dose the error point at? so we can start somewhere.
but the only thing i can see is this

class Grid
{
      public:
      Grid(Boy::ResourceManager *rm, b2World *world, std::vector<Pea *> peas);

      ~Grid();

      void draw(Boy::Graphics *g);

}; <-------------------- You missed this.
but i suspect thats a copy to the forum error.

I've not missed the closing "};" part. :( here is the full Grid.h definition...

are you sure its not definde like this

I have defined it to be like that so that std::vector<Pea *> holds pointers to the pea objects, which are on the heap. :S

You have a problem of include loops maybe?

if you're just using Pea as a pointer why don't you try to forward declare it and then in the .cpp use it properly. It's the "elegant" and actually efficient (in compiling time) way to do it:

Grid.h:
....
class Pea;

class Grid
{
...
std::vector<Pea*> m_Peas;
};

Grid.cpp

...
#include "Pea.h"
...
// do something with my vector of peas
m_Peas.push_back(new Pea());
...

Oh, I forgot to tell you. If you forward declare the class you don't need to include it in Grid.h

You should really look for some good books on C++ programming. I'm sorry I can't recommend you one now, but there are lots out there.

I have a few books on C++ programming; Accelerated C++ and a Deitel C++ How To Program. Their examples and explanations are very nice right up until you got horribly stuck on problems like this!

To be honest I learnt C++ at the uni and I've improved a lot since by reading articles on the internet, discussing with people, etc... I think that code reviews, discussing your code, etc., helps a lot, so maybe what you need is just that, a bit of experience.

Regarding the #pragma once, I'd have thought the same, but I'd recommend you always use both the #pragma and the #ifndef ... #define ... at the beginning of the file. Not all the compilers support the #pragma once directive. Anyway, Microsoft compiler usually supports that directive so I don't know...

Anyway, I hope the forward declaration solves it for you. It will also save you loads of compilation time if you use it properly: you should really avoid #includes in .h files unless they are completely necessary. That and a good use of precompiled headers speed up incredibly the compilation times.

Finally, just an advise if you mind me. Use namespaces, they help a lot when organizing the code properly. It's really simple but it helps you divide your classes better. Maybe you are already using them and just avoiding them in these files because they are the main program or something, but just in case.

Happy coding!

Oh, BTW, if you're using already namespaces, check you haven't forgotten to close any of them because that may cause that very same error of unexpected identifier... It's a really nasty mistake since the compiler won't give you much info on the subject, but since you are already in a namespace, classes from other namespaces are not accessible as normally.

I'm currently at uni but my comp. sci course mainly focuses on Java programming, but they did do a few lectures on C++. I can code in Java and C# very well, and C++ has very similar syntax, so I agree that this is just an experience thing.

Scott Meyer's "Effective C++" series

   Effective C++
   More Effective C++
   Effective STL

and Herb Sutters "Exceptional C++" series

   Exceptional C++
   More Exceptional C++
   Exceptional C++ Style

have tons of good advice on C++ best practices.

I'd start with the Scott Meyers books first.

Nice advice.. I've bought the Effective C++ book off amazon, so hopefully that will help me improve things!