exposure?

task astroid(me, r, se){
        let t = 45;
        let x; let y;

        let z = []; let n = 45;

        function xd(d, i){return d*(cos(t + 360/n*i)^3);}
        function yd(d, i){return d*(sin(t + 360/n*i)^3);}

        ObjShot_SetSpellResist(me, true);
        ascent(i in 0..n){
            z = z ~ [CreateShotA1(getx(me) + xd(0,i), gety(me) + yd(0,i), 0, t, 114, 1)];
            z = z ~ [CreateShotA1(getx(me) + xd(0,i), gety(me) + yd(0,i), 0, t, 116, 1)];
            yield;
        }

        setsp(me, 1/2);
        let lay = 0; let g = 1/2;
        while(!Obj_IsDeleted(me)){
            ascent(i in 0..length(z)){
                ObjShot_SetAutoDelete(z[i], false);
                ObjShot_SetSpellResist(z[i], true);
                if(!Obj_IsDeleted(z[i])){
                    if(i % 2 == 0){ObjMove_SetPosition(z[i], getx(me) + xd(lay,i), gety(me) + yd(lay,i));}
                    else{ObjMove_SetPosition(z[i], getx(me) + xd(lay/2,i), gety(me) + yd(lay/2,i));}
                    seta(z[i], t + 360/n*i);
                }
            }

            t += 2;
            lay += g; if(lay >= r && g > 0){g *= -1;}else if(lay <= 0 && g < 0){g *= -1;}
            yield;
        }

        ascent(i in 0..length(z)){
            if(!Obj_IsDeleted(z[i])){
                ObjShot_FadeDelete(z[i]);
            }
        }
    }