some very strange var benchmark.

[omniscient232]

Hello,

I wanted to show some benchmarks, because i don't understand why these are the results i get:
in class Ship:

public var wwidth:Number = width;

then:
doing all of these 10000 times, gives this:
craft.x; //11 ms
craft.width;//102 ms
craft.wwidth //1 ms

I cannot believe the amazing difference in performance of this.
And in terms of performance, this means that you can better use a var wwidth, like i did here, as long as your mc doesn't change inn size.

[Mavrisa]

Going across scope levels takes a lot longer because flash has to do a cross-class look up each time. Setting it to a local variable really improves performance for that reason.

[omniscient232]

uhm. there isn't a local variable among these three, is there? i don't think i know what you mean.

[neznein9]

When you call .width it's measuring the size of the object every time - with wwidth you only measure once and then the number is frozen so it's just a memory read.

[omniscient232]

ok. and x the same?

[neznein9]

yup.