function, that checks if a coord is inside an area / polygon given by an array / list of coords? [closed]

Question

Writing a Checker, is there a function, that checks if a coord is inside an area / polygon given by an array / list of coords?

Comments

it it used in the checker to http://project-gc.com/Challenges/GC2M3D4/1320
it uses the algorithm in http://en.wikipedia.org/wiki/Point_in_polygon
I think the checker code has a but if the line hits a endpoint of a polygon but i am not sure

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Thank you. I will have a look on this script.

Answer 1

This can very well be implemented in LUA. There already are polygon checker(s) that does this as well.