if (view_xview[0] >= 0)
    background_x[4] = 200 + round(view_xview[0] - (view_xview[0] * scrollspeed));
gg = room_width - view_wview[0];
if (view_xview[0] >= gg)
    background_x[4] = 200 + round(gg - (gg * scrollspeed));