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- /// point_in_triangle(px,py,x1,y1,x2,y2,x3,y3)
- //
- // Returns true if the given test point is
- // within the given triangle, falso otherwise.
- //
- // px,py test point
- // x1,y1 1st point of triangle
- // x2,y2 2nd point of triangle
- // x3,y3 3rd point of triangle
- //
- /// GMLscripts.com/license
- {
- var a, b, c;
- a = (argument2-argument0)*(argument5-argument1)-(argument4-argument0)*(argument3-argument1);
- b = (argument4-argument0)*(argument7-argument1)-(argument6-argument0)*(argument5-argument1);
- c = (argument6-argument0)*(argument3-argument1)-(argument2-argument0)*(argument7-argument1);
- return (sign(a) == sign(b) && sign(b) == sign(c));
- }
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