# Directional platforms help **URL:** \ **Category:** Questions\ **Created:** [April 9, 2018, 10:46am UTC](https://forum.defold.com/t/directional-platforms-help/18764 "2018-04-09T10:46:43Z")\ **Posts on this page:** 8\ **Page:** 3
**Author:** ![ross.grams](https://forum-defold.b-cdn.net/letter_avatar_proxy/v4/letter/r/cab0a1/32.png) [@ross.grams](https://forum.defold.com/u/ross.grams)\ **Post date:** [June 11, 2019, 12:19pm UTC](https://forum.defold.com/t/directional-platforms-help/18764/42 "2019-06-11T12:19:22Z")
Haha! If it actually mattered at all, I would definitely argue with that issue tag. šŸ™‚ It seems interesting. It seems like heā€™s focused on the ā€œskinā€ interactions, which I donā€™t think would help at all with higher gravity or lower frame rate, but I havenā€™t managed to muddle through his whole explanation yet. ---
**Author:** ![totebo](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/totebo/32/36087_2.png) [@totebo](https://forum.defold.com/u/totebo)\ **Post date:** [June 11, 2019, 1:18pm UTC](https://forum.defold.com/t/directional-platforms-help/18764/43 "2019-06-11T13:18:17Z")
He he he! I think whatā€™s important is how itā€™s solved. Would love to have a solid fix for this, rather than a complicated workaround. It looks like newer versions of Box2D avoid this problem by using edge/chain shapes rather than polygon shapes. This and other possible fixes are discussed [here](https://www.iforce2d.net/b2dtut/ghost-vertices). Which version of Box2D does Defold use? ---
**Author:** ![britzl](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/britzl/32/23_2.png) [@britzl](https://forum.defold.com/u/britzl)\ **Post date:** [June 11, 2019, 7:04pm UTC](https://forum.defold.com/t/directional-platforms-help/18764/44 "2019-06-11T19:04:54Z")
> [@totebo](#): > > Which version of Box2D does Defold use? We use a very old and slightly modified version of Box2D 2.1 (_hides_) ---
**Author:** ![totebo](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/totebo/32/36087_2.png) [@totebo](https://forum.defold.com/u/totebo)\ **Post date:** [June 11, 2019, 10:23pm UTC](https://forum.defold.com/t/directional-platforms-help/18764/45 "2019-06-11T22:23:47Z")
Oh no! I guess there is a reason for not using a later version? 2.1 doesnā€™t appear to have edge/chain shapes. ---
**Author:** ![britzl](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/britzl/32/23_2.png) [@britzl](https://forum.defold.com/u/britzl)\ **Post date:** [June 12, 2019, 4:43am UTC](https://forum.defold.com/t/directional-platforms-help/18764/46 "2019-06-12T04:43:31Z")
> [@totebo](#): > > I guess there is a reason for not using a later version? I believe 2.1 was the version available when 2D physics was added to the engine. ---
**Author:** ![totebo](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/totebo/32/36087_2.png) [@totebo](https://forum.defold.com/u/totebo)\ **Post date:** [June 12, 2019, 6:34am UTC](https://forum.defold.com/t/directional-platforms-help/18764/47 "2019-06-12T06:34:10Z")
Thatā€™s a good reason. šŸ˜ƒ Would be great to use a newer version that supports edge and chain shapes, in case there is ever an opportunity to support those! ---
**Author:** ![totebo](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/totebo/32/36087_2.png) [@totebo](https://forum.defold.com/u/totebo)\ **Post date:** [August 2, 2019, 8:36pm UTC](https://forum.defold.com/t/directional-platforms-help/18764/48 "2019-08-02T20:36:39Z")
> [@britzl](#): > > We use a very old and slightly modified version of Box2D Would it be possible to update Box2D? It may be that the [tunneling issues](https://forum.defold.com/t/sprites-tied-to-physics-lag-one-frame-behind-issue-4152/39859/24) happen because of the older version of Box2D? And it would allow for [chain shapes](https://forum.defold.com/t/box2d-chain-shapes/54586) to be supported. ---
**Author:** ![britzl](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/britzl/32/23_2.png) [@britzl](https://forum.defold.com/u/britzl)\ **Post date:** [August 3, 2019, 6:00am UTC](https://forum.defold.com/t/directional-platforms-help/18764/49 "2019-08-03T06:00:12Z")
> [@totebo](#): > > Would it be possible to update Box2D? It would not be trivial. We have modified Box2D so itā€™s not like weā€™d only have to update some source and header files or link against a new pre built lib. And I have a long list of things with higher priority than a Box2D update Iā€™m afraidā€¦ BUT if thereā€™s anyone out there with plenty of experience working with the C version of Box2D Iā€™d like to get in touch. I would be willing to discuss a collaboration around an upgrade somehow. [Previous page](https://forum.defold.com/t/directional-platforms-help/18764.md?page=2)