PixelBlitz: BlitzMath is live
Tonight I pushed up a new build of the BlitzMath utility class. As dull as this may sound it gives you a set of functions to perform math tasks that either AS3 is very slow at, or that simply don’t exist.
For example there is an extremely fast new rand function for when you only need a small integer back. There are enhancements to the standard Math.random() calls to provide for min, max, int and Float support. There’s a faster abs(), a very fast sqrt replacement and a few other experimental things.
There’s also a nifty little function I call “chanceRoll” which when give a value between 0 and 100 gives you a boolean back based on that weight. For example say you had a player hit a baddie in a game, you could give him a 30% chance of getting a critical hit by calling chanceRoll(30). I know, it’s simple, but it’s lots of simple little things that will make this framework great 🙂
There’s also a blindingly fast simultaneous sine/cosine table generator. So fast in-fact you can generate the tables in real-time! The length, sin/cos amplitude and frequency are all under your control.
This is all now in Google Code, and here’s a quick demo to play with:
[swfobj src=”http://sandbox.photonstorm.com/mathDemos.swf” width=”550″ height=”400″]
Posted on September 4th 2008 at 1:56 am by Rich.
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