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我能改写我昂贵的C游戏功能吗?
原标题:Can I rewrite my expensive pygame functions in C?

我能否在我的游戏游戏中找到昂贵的功能(例如,A* 路由调查), 并将其改写为“ a href=” 的扩展名? http://docs.python.org/extending/extending. html。” rel=“nofollow” 这里 ?

这样做是否有利于速度?是否有更好的解决办法?

我之所以问这个问题,是因为我刚刚开始学习C是因为一些无关的原因,当我想到这个时候,当我回到Python和Pygame时,这可能是个好主意。

最佳回答

这样做是否有利于速度?

在不知道你正在做什么的情况下, 说不出口是不可能的, 但总的答复是“非常可能”的。

是否有更好的解决办法?

再说一遍,说不出口,比什么好?

如果您正在使用数字阵列, 那么第一步应该是使用 < a href=" "https:// numpy. org/" rel=" "no follow noreferrer" >NumPy

一旦你这样做了,除了原C的编码扩展之外,还有多种加快速度的途径:

  • Cython: write extensions in a Python-like language;
  • numexpr: fast evaluation engine for array expressions.

最后,如果你发现自己在写C或C++扩展,请考虑使用 SWIG Boost.Python

问题回答

您可以使用 cProfile 在您的代码中找到最昂贵的函数 。 我非常肯定, 在您将一些代码移动到 C 之后您将会看到性能的改善。 从我的测试中, 根据您的代码, 它可以是 2x 到 200x 的任何改进 。

最容易实现的方法就是将贵重的函数转换成单独的模块,添加变量声明并用 Cython 编集它们。然后,您可以将它们导入主程序,因为它们是 Python 模块。

使用不同方法优化您的代码, 包括剖析和Cython:

"http://aianozsvald.com/highPerformactancePython from trainat EuropePython2011_v0.2.pdf" rel="no follow">http://ianozsvald.com/highPerformationPython from trainedat EuropePython2011_v0.2.pdf





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