Constrain Within Circle?
joel.guillod at net2000.ch
Sat Nov 5 18:03:40 CST 2005
My test with the 2 different versions of the function shows a 25%
faster with the one using atan2 (test with 1000 and 10000 loops, 200
runs)... on a G4/1.67 GHz/RAM 2 Go/Mac OS X 10.4.2. Probably you
loose time with testing x1=>x2... But you are right one loop was less
than one millisecs and may not impair the overall performance.
>> Should the ArcadeEngine be optimized for speed from ...
> It is. In my test using atan instead of atan2 was a few milliseconds
> faster. Not too many though. in 350 loops and 50 test runs the atan
> version was about 70 millisecs faster on a G4 - 400 MHz than the atan2
> version. That´s why I chose the longer form. But ...
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