Gordon Woodhull gordonwoodhull

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GW - updated to URL changes of 2013 which add the username

	#define MPLLIBS_LIMIT_SEQUENCE_SIZE 7
	#define MPLLIBS_LIMIT_STRING_SIZE 256

	#include <mpllibs/metaparse/string.hpp>
	#include <mpllibs/metaparse/keyword.hpp>
	#include <mpllibs/metaparse/token.hpp>
	#include <mpllibs/metaparse/lit_c.hpp>
	#include <mpllibs/metaparse/any.hpp>
	#include <mpllibs/metaparse/alphanum.hpp>
	#include <mpllibs/metaparse/sequence.hpp>

	// Adapted from http://stackoverflow.com/questions/563198/how-do-you-detect-where-two-line-segments-intersect/1968345#1968345
	var eps = 0.0000001;
	function between(a, b, c) {
	return a-eps <= b && b <= c+eps;
	}
	function segment_intersection(x1,y1,x2,y2, x3,y3,x4,y4) {
	var x=((x1y2-y1x2)(x3-x4)-(x1-x2)(x3y4-y3x4)) /
	((x1-x2)(y3-y4)-(y1-y2)(x3-x4));
	var y=((x1y2-y1x2)(y3-y4)-(y1-y2)(x3y4-y3x4)) /
	((x1-x2)(y3-y4)-(y1-y2)(x3-x4));