确保单向行为控制的所有接触都具有相同行动。
使用 oneWay 行为时，会检查与 PlatformEffector2D 接触的每个单独碰撞体，通过将其碰撞法线与 surfaceArc 进行比较来查看是否应将其禁用。对于由多个碰撞体构成的对象，如此处理每个单独碰撞体可能会造成问题。
如果对象由许多碰撞体构成，并且其中一个碰撞体由于单向行为而禁用了接触，则在相同对象中的所有碰撞体与相同 PlatformEffector2D 接触时，最好对它们执行相同操作。为此，请将 useOneWayGrouping 设置为 true。这样做时，所有碰撞体本质上是一体的，它们在单向行为方面保持一致。
useOneWayGrouping 未启用时，由多个碰撞体构成的对象可能最后会处于以下状况：它通过穿过单向平台而禁用了一个碰撞体接触，但是其他碰撞体无法穿过。
另请参阅：useOneWay。
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.