我使用libgdx框架开发游戏，因为我无法设定界限的世界，以限制演员。当过一次装夹越过屏幕（世界）的边缘，应该恢复或停在那里本身。我知道，通过计算X，Y坐标，我们可以做到这一点，如果有任何其他方式，请在这方面提供帮助。

Hi I am developing a game using libgdx framework, in that i am unable to set boundaries to the world in order to limit the actors. When ever a fixture crossed the screen(world) edge it should revert back or stop there itself. I know by calculating x,y co-ordinates we can do it, if there any other way please help in this regard.

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得到通过设置边缘形状解决..

got resolved.. by setting edges to shapes