[Tutor] Point in polygon intro please~!

Michael Shulman contact at endarion.com
Sat Oct 7 09:33:27 CEST 2006

Hello, I'm very new to both python and OpenGL, but I'm catching on 
pretty quick,
and trying to make a little game.  I'm stuck on being able to do this 
point-in-polygon test though. 
Everyone seems to say that I should create a ray and see how many sides 
of a polygon it intersects, (even vs odd)
but I have no idea how to go about setting this up.

I'm trying to have a 5-point polygon made from a list of trailing mouse 
positions (len(mouselist)=5, obviously),
and checking to see if a bunch of points in a separate list 
(len(pointlist)=20) ever fall within the resultant polygon. 
The lists and program are all setup, but too large to copy here.  It all 
works by itself though, so I just need to
find out how to do this test.

Any help on how to set something like this up would be extremely 
Thank you very much for your time,

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