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Played our freeware games? This programming tutorial will teach you to do all the features of
our games and more. All examples are given in
DJGPP 2.0 (http://www.delorie.com/djgpp/) and are therefore fairly easy to convert to other C / C++ compilers.
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Fast graphics are easy to do in VGA so its the best place to start. Click here to learn how to put the computer
into 320 X 200 resolution with 256 colours, and to display pixels.
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Bitmaps are an essential structure for most games. Being able to have transparant
sections and draw a semi-offscreen image is also very usefull. Get the code for this here.
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For games it's no good having each keypress going into a buffer where we read it -
followed by a long pause before the key can be pressed again.
Having the PC stop and beep when you have pressed a key 15 times is no help either.
Avoid all this by replacing the keyboard interrupt handler.
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If you understand basic graphics techniques you may want to move to higher resolutions.
The VESA standard provides a reliable and documented way to access higher resolutions
on virtually any modern (or even old) video card. Read our introductory tutorial here.
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Creating sounds for your game will really add to the interactive feel and is well worth the effort.
Retro-Games used a simple sound blaster library for DJGPP to do this. (don't reinvent the wheel).
Download and learn how to use this library here.
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