André Michelle released not just a very fast raycaster today but also made a very interesting post on the Flashforum. It is about the optimization of your AS3 code and I am in awe of his creative tests. The fastest method to fill an Array in AS2 was this one:
[as]var n: Number = 1000;
while ( –n > -1 )
array[ n ] = 0;[/as]
Now André just posted another method wich is a lot faster. The webcam with particles experiment moved from 25fps to 30fps.
This is what he posted and it describes the technique very well:
[as]var x: Number = 0;
while( x++ < 1000 )
{
// do something
}
var x: Number = 0;
while( x < 1000 )
{
x++;
// do something faster
}
// or inside conditions
if( ( z = iz * 100 ) < 0 )
{
// do something
}
z = iz * 100;
if( z < 0 )
{
// do something faster
}[/as]
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