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Dividing code

Discussion in 'C++' started by gisek, Aug 29, 2010.

  1. gisek

    gisek New Member

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    Hi,

    After a year of using c# and gaining object programming experience I decided to improve my c++ skills.

    What I particularly liked about c# was the way of dividing source into different files. It all just worked fine :).

    Now I want to do the same using c++. I'm going to create an sdl game, and to avoid a mess in code, I want to divide it all at least into the following sections: main, load_data, update, draw.

    The problem is that functions in all of those sections will use the same data and probably will use the same classes/structures.

    1)I tried myself divide the code, but it doesn't work, and below you can see an example, of what I tried:

    main.cpp
    Code:
    #include "declarations.h"
    #include "load_resources.cpp"
    
    Resources res;
    
    int main ( int argc, char** argv )
    {
        load(res);
    
        return 0;
    }
    declarations.h
     #ifndef DECLARATIONS_H_INCLUDED
    #define DECLARATIONS_H_INCLUDED
    
    struct Resources
    {
        int a;
        int b;
    
    };
    
    bool load(Resources &res);
    
    #endif // DECLARATIONS_H_INCLUDED
    
    load_resources.cpp
     #include "declarations.h"
    
    bool load(Resources &res)
    {
        return true;
    }
    
    multiple definition of `load(Resources&)'|


    2) The other problem is that every section should have access to the same data. What's, the best way for it? In c# I just had to create a public static call. In c++ - I have no idea.

    Help me please.
    Bye
     

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