flash game tutorial from strille.net - modulo %

i was just reading this tutorial from strille.net on flash and this is really interesting...

i've been trying to hone my skill on multimedia programming so i'm just looking into game codes.
structure wise they all share similar routes. but what's in there or the codes people use to achieve certain results are interesting.

like.. % modulo
for a beginner like myself. when you learn about modulo it's like what? how do you even try to use that? but for this kind of application this works really well and i was amazed how much if else you can avoid just with these simple steps.



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