Engines; how do they work?

This is a discussion on Engines; how do they work? within the Game Programming forums, part of the General Programming Boards category; I really need someone to clear this up for me, or link me to somewhere that can. I've had the ...

  1. #1
    Supermassive black hole cboard_member's Avatar
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    Engines; how do they work?

    I really need someone to clear this up for me, or link me to somewhere that can.

    I've had the quake2 source code for a while, and I've done some work with the Source engine SDK, and there's on thing I don't understand about game engines which seems to set them apart from other programs.

    When compiled, they produce .dll's. As far as I can see there's no entry point to the app. - no main. Source for example, when compiled, is "turned into" server.dll and client.dll - how the hell does this work?

    I know I'm not explaining it very well; I don't understand how the program "works". Quake 2 is compiled into a .dll too. It's all very confusing to me

    Could someone do their best to explain this to me? Where does the program start?
    Good class architecture is not like a Swiss Army Knife; it should be more like a well balanced throwing knife.

    - Mike McShaffry

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    The Right Honourable psychopath's Avatar
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    The dlls generated by the Quake2 source, are basicly just a library of functions, to be used by another app that would use them (the Q2 engine). So, for example, if you were going to create a game with the Q2 engine, you would begin writing a program, that links with the Q2 dlls and libs. (ie, rather than writing your own render function, you would call the Q2 render function).

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    Dae
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    Heres two articles on how to actually make the library dll's that should explain it quite well. http://www.gamedev.net/reference/art...rticle1672.asp
    Warning: Have doubt in anything I post.

    GCC 4.5, Boost 1.40, Code::Blocks 8.02, Ubuntu 9.10 010001000110000101100101

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    Supermassive black hole cboard_member's Avatar
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    Thanks for your help guys
    Good class architecture is not like a Swiss Army Knife; it should be more like a well balanced throwing knife.

    - Mike McShaffry

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