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windows timers and other cheese

dom · 2000-01-27T12:13:00

i''m currently coding my first game in windows, trying to work out vc++ as i go, but i have come a bit unstuck. with dos and the like i can set up timers nicely and rely on them to do the job, but i''m having dificulty getting a timer in windows to update my game world data structure every 1/30th sec. As a simple example i have a timer with a callback function that moves an object one pixel to the right on every cycle of the clock (ie. 1/30th sec), and the main game loop peeks at the message queue, dispatches as requires and then draws to the back buffer and then flips the back buffer if the displayed world is out of date (i.e. the object has moved in the world data structure). The only problem is that it''s a little jumpy... not too bad but quite noticeable, how do i fix it? cheers dom

General and Gameplay Programming Programming

Started by dom January 25, 2000 06:31 AM

10 comments, last by dom 24 years, 10 months ago

_dot_

160

January 26, 2000 07:19 PM

Worrying about 13 cycles for every call? Gee, you must have a very optimized framework/engine. But hey, there will come a point in optimization where a gain of 13 cycles is insignificant per frame or per second!

Staffan

122

January 27, 2000 12:13 PM

well compared to the 2984846 cycles it takes to process an alpha blended 640x480x16 image...it isnt all that much

windows timers and other cheese

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