This piece of code has been taken from a game built with XNA framework. I\'d like some explanation of how it works in terms of trig and physics.
(This is all in ortho mode, origin is in the top left corner, x is positive to the right, y is positive down the y axis)
sin and cos functions are slow and need a lot of resources to run on embedded syste开发者_如何学Pythonms. How does one calculate sin and cos functions in a more resource-saving and faster way?To calcu
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