# Box2D Question

**URL:** https://forum.kirupa.com/t/box2d-question/317341
**Category:** Uncategorized
**Created:** [December 17, 2010, 6:11am UTC](https://forum.kirupa.com/t/box2d-question/317341 "2010-12-17T06:11:38Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![foryou\_sandeep](https://avatars.discourse-cdn.com/v4/letter/f/e68b1a/32.png) [@foryou\_sandeep](https://forum.kirupa.com/u/foryou_sandeep)
#### Post date: [December 17, 2010, 6:11am UTC](https://forum.kirupa.com/t/box2d-question/317341/1 "2010-12-17T06:11:38Z")

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Hi…

Is there any method to change the property of b2World dynamically?..  
I want to apply a wind effect at some level of my game… My idea is to change the property of b2World object that i created…

Or is there any other method to crate that effect?..