cpSpaceHashEach - 同一行有 2 个问题
我正在尝试掌握花栗鼠的基础知识。在一些教程中我发现了一行：
cpSpaceHashEach(space->activeShapes, &updateShape, nil);
但我在这里遇到了 2 个错误：
1）隐式声明函数在 C99 中无效
2）“struct cpSpace”中没有名为“activeShapes”的成员
有什么问题？为什么不起作用？我还需要添加其他内容吗？
I'm trying to grasp basics of Chipmunk. In some tutorial I found a line:
cpSpaceHashEach(space->activeShapes, &updateShape, nil);
But I get 2 mistakes here:
1) Implicit declaration of function is invalid in C99
2) No member named 'activeShapes' in 'struct cpSpace'
What is wrong? Why doesn't it work? Do I need to include something else?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（2）
只是为了澄清一些代码，以防其他人遇到此问题，而不是
使用：
显然，此更改已完成，因此更容易保持代码面向未来，因为 activeShapes 并不意味着以这种方式使用。
Just to clarify with some code in case anyone else runs into this problem, instead of
you'd use:
Apparently this change was done so it is easier to keep the code future-proof since the activeShapes were not meant to be used in this way.
深入研究变更日志：（https://github.com/slembcke/Chipmunk-Physics/blob/master/VERSION.txt）
如果您查看，您会发现在 Chipmunk 5.x cpSpace 中。*形状被标记为私有标头中 cpSpace 结构的成员。然后，在 Chipmunk 6.x 中，默认情况下禁用私有访问，并且出现了 cpSpaceEachShape() 函数，它几乎完全取代了您尝试执行的 cpSpaceHashEach() + cpSpace.activeShapes。
Digging into the changelog: (https://github.com/slembcke/Chipmunk-Physics/blob/master/VERSION.txt)
If you look, you'll find that in Chipmunk 5.x cpSpace.*Shapes were marked as private members of the cpSpace struct in the header. Then, in Chipmunk 6.x, private access was disabled by default and a cpSpaceEachShape() function appeared that almost exactly replaced cpSpaceHashEach() + cpSpace.activeShapes that you are trying to do.