.Map :: MoHAA Mapping

Posted: **Wed Feb 13, 2008 6:42 pm**

Here's some general information on coding the project.

For those who coded in C++ before but not in "bare" C
C does not have the following things:

classes
templates
overloading (both functions and operators)
references

Please don't define constants as variables using the const keyword, but use defines instead. I.e.
BAD

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const char *foo = "bar";

GOOD

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#define FOO "bar"

Where do I start with the source code?
The ioquake3 wiki can give you an idea on things, e.g. how the execution proceeds from the moment of launching the game.
For access to the source code repository, check out the SourceForge project page - there's a link to the left that says "SVN repository access" (or you can go directly to ViewVC if you only want to browse the code).

Coding style
This section contains coding style guidelines that I'm asking of you to obey (mostly copied over from the FreeCNC website). Mind you these are guidelines - I can take any code as long as it's clean and organized.

General presentation

Comment all code that isn't self-explanatory. Especially that pointer hacking.
Tab indenting, no four-spaces.
Header guards follows the FILENAME_EXT convention - G_FOOBAR_H for game/g_foobar.h
Indent #ifdef/#ifndef etc the same as regular code. That is, like normal if/else statements.
When declaring pointers, put * next to the variable, not the type.
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```
      int x = 42;
      int *z = &x;
```
Where applicable, start the file with a comment explaining the contents. For headers, place it right after the header guards.
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```
      // g_script.c - implements the server side scripting
```

For big files, seperate sparingly with headers or simple splitters.

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      //--------------------------------------------------------
      // Script stack
      //--------------------------------------------------------

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      void foo (int bar) {return 0;}

      //--------------------------------------------------------

      int bar (byte foo) {return foo & 0xdeadbeef;}

In cases where it makes sense, try to keep 80 chars per line.
C++ style comments should be used for 1 liners. Never use /**/ for single line comments.

Use ALL_UPPER_CASE for defines, enums values and macros.

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      #define VERSION "0.3.0"
      enum {
          RED,
          GREEN,
          BLUE
      };

Use Pascal casing or underscoring for words in variables.
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```
      int fooBar;
      int foo_bar;
```

Use curly braces for control-flow statements that span several statements, and no braces for those comprised of one.
BAD

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      if (true) printf("foo\n");

BAD

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      if (true) {
            printf("foo\n");
      }

GOOD

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      if (true)
            printf("foo\n");

GOOD

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      if (true) {
            printf("foo\n");
            printf("bar\n");
      }

Posted: **Fri Feb 15, 2008 10:24 am**

Im learning C++ with a book but exemples are too easy (class "car", methods "start", "stop" etc lol). I understand syntax caracteristics (for me c++ is a complex language), but i dont able to manipulate a game engine with this way.

Ill try to learn opengl programming to work on engine but i have a lot of work with my studies, im hurrying.

Posted: **Sat Feb 16, 2008 7:25 pm**

c\c++ definitely takes time to pickup. And to be honest learning OGL won't really be helpful in this project I don't think. The reason for that is because this project uses its own functions to render everything instead of using openGL. Now granted it's always good to learn just to know it, but I haven't seen any real use of ogl in the code so far.

Posted: **Sat Feb 16, 2008 8:10 pm**

Of course there is OpenGL in Quake III, it's the rendering backend. We're not going to touch it anytime soon, though.

I'm making this topic public.

.Map :: MoHAA Mapping

About the source code

About the source code