# Migrating from Open Source SDK

**URL:** <https://forum.kirupa.com/t/migrating-from-open-source-sdk/295679>\
**Category:** flash\
**Created:** [September 2, 2009, 9:38pm UTC](https://forum.kirupa.com/t/migrating-from-open-source-sdk/295679 "2009-09-02T21:38:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![TimmyAS](https://avatars.discourse-cdn.com/v4/letter/t/ba8739/32.png) [@TimmyAS](https://forum.kirupa.com/u/TimmyAS)\
**Post date:** [September 2, 2009, 9:38pm UTC](https://forum.kirupa.com/t/migrating-from-open-source-sdk/295679/1 "2009-09-02T21:38:24Z")

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I have a project that used the Open Source SDK and thus did not take advantage of anything CS4. I was recently gifted CS4, and now I wonder if things can be done better?

For example, one of my games uses some kind of phase transition to maintain state. Tons of if ( currentStep == N ) statements. Is this better using movie clips and using named frames?

Any other tips that you would recommend to a newbie to CS4 (but knows enough about AS3)?

Thanks!