Lineintersect

lineintersect <ox> <oy> <oz> <dx> <dy> <dz> <x1> <y1> <x2> <y2> <intx> <inty> <intz> <ret>

Determines where a line defined by origin point <ox> <oy> <oz> and destination point <dx> <dy> <dz> intersects the vertical plane defined by the points <x1> <y1> and <x2> <y2>.

The point of intersection, if any, is returned as <intx> <inty> <intz>, with <ret> holding a value of 1 if an intersection exists and 0 otherwise.