Java / libGDX - 如何检查多边形与Rectangle或Circle的碰撞 [英] Java/libGDX - how to check Polygon collision with Rectangle or Circle

问题描述

我是新来libGDX，从我可以告诉部门间类有重叠的矩形/矩形，圆形/圆，圆/矩形和多边形/多边形的方法，但由于某种原因，它似乎并不有检查多边形/矩形或多边形/圆形的任何方法。

I'm new to libGDX and from what I can tell the Intersector class has overlap methods for Rectangle/Rectangle, Circle/Circle, Circle/Rectangle, and Polygon/Polygon, but for some reason it doesn't seem to have any methods for checking Polygon/Rectangle or Polygon/Circle.

是否有推荐的方法来检查多边形和矩形/圆形之间的碰撞？

Is there a recommended way to check for collision between polygon and rect/circle?

另外，是否有一些原因导致这一问题被排除在Intersector类之外？ （即，我应该避免呢？如果是的话，有什么推荐的方法吗？）

Also, is there some reason why this has been left out of the Intersector class? (ie, should I avoid it? If so, what's the recommended alternative?)

推荐答案

来处理这些冲突的最佳办法是使用像Box2D这样的物理引擎，它已经包含了Libgdx。当Box2D发生碰撞时，事件会被触发，您可以轻松处理该事件。所以你应该看看这里。

The best way to handle those collisions would be to use a physics engine like Box2D which already comes packed with Libgdx. When a collision occurs in Box2D a event gets fired and you can easly handle that event. So you should probably take a look here.

当然还有其他处理碰撞检测的方法。通过一些数学运算，您可以很容易地找出自己需要的东西，Box2D还有很多其他功能可以让您受益。

Of course there are other ways of dealing of dealing with collision detection. With a little bit of maths you could probaly figure out just what you need on your own, also Box2D comes with alot of other features that will benefit you.

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