High CPU usage on Pong clone

Posted by max on Game Development See other posts from Game Development or by max
Published on 2012-10-22T11:11:53Z Indexed on 2012/10/22 11:19 UTC
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I just made my first game, a clone of Pong, using OpenGL and C++. But its using ~50% of the CPU, which I guess is very high for a game like this. How can I improve that? Can you please look up my code and tell me what all things I am doing wrong? Any feedback is welcome.

http://pastebin.com/L5zE3axh

Also it would be extremely helpful if you give some general points on how to develop games in OpenGL efficiently..

Thanks in advance!

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