SBF_CliHor

    //: Horizontal Intersection Of Point And Circle
    //: www.twitch.com/kanjicoder
    //: https://www.etsy.com/shop/DekTen
    //: ANIMATED_GIF_OF_THIS_CODE: https://imgur.com/gallery/wIPuIES

    //:COPIED_FROM[ R:\G\UP\MSB\SBF.SCAD ]===================://

        //:Circle_Line_Intersect:HORIZONTAL_RAY_FROM_POINT
        function SBF_CliHor(
            p_t
        ,   cen
        ,   rad
        )=([
            ( //:<<<<<<< h_x:HIT_X(intersection_x)

                ( cen[0]+SBF_IGT(p_t[0],cen[0])*cos( //:C_F:BEG

                    asin((p_t[1]-cen[1])/rad)  //:__ANG__

                )*rad )  //:<<<<<<<<<<<<<<<<<<<<<<<<<<<:C_F:END

            ) //:<<<<<<< h_x:HIT_X(intersection_x)
            ,
            p_t[1] //:Y_IS_SAME_FOR_HORIZONTAL_INTERSECTION
        ]);;

        //: IGT:Is_Greater_Than:
        //:     TRUE: Return 0+1
        //:    FALSE: Return 0-1
        function
        SBF_IGT( p_t , cen )=(

            p_t >= cen ? 0+1 :
            p_t <  cen ? 0-1 : 0

        );;

    //:==================:COPIED_FROM[ R:\G\UP\MSB\SBF.SCAD ]://