Re: [pygame] Making A Module

[Greg Ewing <greg.ewing@xxxxxxxxxxxxxxxx>]

RR4CLB wrote:
> For some reason even though I have imported the math prior to the module,

Each module is a separate namespace. When you do 'import math',
it defines the name 'math' in the module where the import
statement occurs, and *only* that module. If you want to use
math in another module, you need to import it in that module
as well.

> it is in the .pyc that is the problem.

You seem confused. The .pyc file is just a cache of compiled
bytecode -- its absence should never prevent any imports from
working (as long as the .py file it was created from can still
be found).

>         self.Tan_Angle = math.tan( self.Dx/ self.Dy)
>         self.Ship_Angle = math.atan( self.Dx/ self.Dy)
>         self.Sin_Angle = math.asin( self.Dy/ math.hypot( self.Dx, self.Dy))
>         self.Cos_Angle = math.acos( self.Dx/ math.hypot( self.Dx, self.Dy))

Not sure why you're calculating so many angles here, but if
you're trying to figure out which quadrant it's in, you
may find the math.atan2() function useful -- atan2(y, x)
gives you the angle of a vector from (0, 0) to (x, y)
with the signs of x and y taken into account.

Also -- what's with all the exclamation marks? Do you like
to write your comments comic-book style or something? :-)

--
Greg