Finding Intersections using C

[steel wadi]

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[final junco]

Do you know how to check wether and where two lines intersect ?

[long star]

yes, i used this but i cant seem to put my thoughts to code. my first time trying C lol

[final junco]

you just write it down exactly like that:

float Numerator = (x1*y2 - y1*x2) * ...;
float Denominator = (x1 - x2) * (y3 - y4) - ...;
float Px = Numerator / Denominator;

you probably want to have a struct like

struct point
{
  float X, Y;
};

so that you can more easily pass and return them from functions, i.e.

struct point
IntersectionPoint(struct point p1, struct point p2, struct point p3, sturct point p4)
{
  ...;
  struct point Intersection = { .X = Px, .Y = Py };
  return Intersection;
}