-- in the rotating function

        local x1 = math.floor(sh.Rotation);

        local cp = val[3]; -- calculated next position;

        print('degrees: '..x1, 'rads: '..x1 * (math.pi/180));
        sh.Rotation = (rotateship(x1 * (math.pi/180), cp, 0.05) * 180 / math.pi) + 90;


-- in the mousemove function

bg.MouseMoved:connect(function(x, y)
    local spos = {sh.AbsolutePosition.X + 25, sh.AbsolutePosition.Y + 36}
    local del_x, del_y = x - spos[1], y - spos[2];
    val[3] = math.floor((math.atan2(del_y, del_x)));
end)